Merge pull request #843 from paul-elliott-arm/mbedtls-2.27.0rc0-prv2.27.0mbedtls-2.27.0

Mbedtls 2.27.0rc0 pr

65 files changed, 1022 insertions, 593 deletions

diff --git a/ChangeLog b/ChangeLog
index a6d4adf..89572ca 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,205 @@
 mbed TLS ChangeLog (Sorted per branch, date)
 
+= mbed TLS 2.27.0 branch released 2021-07-07
+
+API changes
+   * Update AEAD output size macros to bring them in line with the PSA Crypto
+     API version 1.0 spec. This version of the spec parameterizes them on the
+     key type used, as well as the key bit-size in the case of
+     PSA_AEAD_TAG_LENGTH.
+     The old versions of these macros were renamed and deprecated as follows:
+     - PSA_AEAD_TAG_LENGTH          -> PSA_AEAD_TAG_LENGTH_1_ARG
+     - PSA_AEAD_ENCRYPT_OUTPUT_SIZE -> PSA_AEAD_ENCRYPT_OUTPUT_SIZE_2_ARG
+     - PSA_AEAD_DECRYPT_OUTPUT_SIZE -> PSA_AEAD_DECRYPT_OUTPUT_SIZE_2_ARG
+     - PSA_AEAD_UPDATE_OUTPUT_SIZE  -> PSA_AEAD_UPDATE_OUTPUT_SIZE_2_ARG
+     - PSA_AEAD_FINISH_OUTPUT_SIZE  -> PSA_AEAD_FINISH_OUTPUT_SIZE_1_ARG
+     - PSA_AEAD_VERIFY_OUTPUT_SIZE  -> PSA_AEAD_VERIFY_OUTPUT_SIZE_1_ARG
+   * Implement one-shot cipher functions, psa_cipher_encrypt and
+     psa_cipher_decrypt, according to the PSA Crypto API 1.0.0
+     specification.
+
+Requirement changes
+   * The library now uses the %zu format specifier with the printf() family of
+     functions, so requires a toolchain that supports it. This change does not
+     affect the maintained LTS branches, so when contributing changes please
+     bear this in mind and do not add them to backported code.
+
+Features
+   * Add mbedtls_rsa_rsassa_pss_sign_ext() function allowing to generate a
+     signature with a specific salt length. This function allows to validate
+     test cases provided in the NIST's CAVP test suite. Contributed by Cédric
+     Meuter in PR #3183.
+   * Added support for built-in driver keys through the PSA opaque crypto
+     driver interface. Refer to the documentation of
+     MBEDTLS_PSA_CRYPTO_BUILTIN_KEYS for more information.
+   * Implement psa_sign_message() and psa_verify_message().
+   * The new function mbedtls_mpi_random() generates a random value in a
+     given range uniformly.
+   * Implement psa_mac_compute() and psa_mac_verify() as defined in the
+     PSA Cryptograpy API 1.0.0 specification.
+   * MBEDTLS_ECP_MAX_BITS is now determined automatically from the configured
+     curves and no longer needs to be configured explicitly to save RAM.
+
+Security
+   * Fix a bias in the generation of finite-field Diffie-Hellman-Merkle (DHM)
+     private keys and of blinding values for DHM and elliptic curves (ECP)
+     computations. Reported by FlorianF89 in #4245.
+   * Fix a potential side channel vulnerability in ECDSA ephemeral key generation.
+     An adversary who is capable of very precise timing measurements could
+     learn partial information about the leading bits of the nonce used for the
+     signature, allowing the recovery of the private key after observing a
+     large number of signature operations. This completes a partial fix in
+     Mbed TLS 2.20.0.
+   * It was possible to configure MBEDTLS_ECP_MAX_BITS to a value that is
+     too small, leading to buffer overflows in ECC operations. Fail the build
+     in such a case.
+   * An adversary with access to precise enough information about memory
+     accesses (typically, an untrusted operating system attacking a secure
+     enclave) could recover an RSA private key after observing the victim
+     performing a single private-key operation. Found and reported by
+     Zili KOU, Wenjian HE, Sharad Sinha, and Wei ZHANG.
+   * An adversary with access to precise enough timing information (typically, a
+     co-located process) could recover a Curve25519 or Curve448 static ECDH key
+     after inputting a chosen public key and observing the victim performing the
+     corresponding private-key operation. Found and reported by Leila Batina,
+     Lukas Chmielewski, Björn Haase, Niels Samwel and Peter Schwabe.
+
+Bugfix
+   * Add printf function attributes to mbedtls_debug_print_msg to ensure we
+     get printf format specifier warnings.
+   * Fix premature fopen() call in mbedtls_entropy_write_seed_file which may
+     lead to seed file corruption in the case where the path to the seed file is
+     equal to MBEDTLS_PLATFORM_STD_NV_SEED_FILE. Contributed by Victor
+     Krasnoshchok in #3616.
+   * PSA functions other than psa_open_key now return PSA_ERROR_INVALID_HANDLE
+     rather than PSA_ERROR_DOES_NOT_EXIST for an invalid handle, bringing them
+     in line with version 1.0.0 of the specification. Fix #4162.
+   * PSA functions creating a key now return PSA_ERROR_INVALID_ARGUMENT rather
+     than PSA_ERROR_INVALID_HANDLE when the identifier specified for the key
+     to create is not valid, bringing them in line with version 1.0.0 of the
+     specification. Fix #4271.
+   * Fix some cases in the bignum module where the library constructed an
+     unintended representation of the value 0 which was not processed
+     correctly by some bignum operations. This could happen when
+     mbedtls_mpi_read_string() was called on "-0", or when
+     mbedtls_mpi_mul_mpi() and mbedtls_mpi_mul_int() was called with one of
+     the arguments being negative and the other being 0. Fixes #4643.
+   * Fix a bug in ECDSA that would cause it to fail when the hash is all-bits
+     zero. Fixes #1792
+   * Fix a compilation error when MBEDTLS_ECP_RANDOMIZE_MXZ_ALT is
+     defined. Fixes #4217.
+   * Fix an incorrect error code when parsing a PKCS#8 private key.
+   * In a TLS client, enforce the Diffie-Hellman minimum parameter size
+     set with mbedtls_ssl_conf_dhm_min_bitlen() precisely. Before, the
+     minimum size was rounded down to the nearest multiple of 8.
+   * In library/net_sockets.c, _POSIX_C_SOURCE and _XOPEN_SOURCE are
+     defined to specific values.  If the code is used in a context
+     where these are already defined, this can result in a compilation
+     error.  Instead, assume that if they are defined, the values will
+     be adequate to build Mbed TLS.
+   * The cipher suite TLS-RSA-WITH-CAMELLIA-256-GCM-SHA384 was not available
+     when SHA-1 was disabled and was offered when SHA-1 was enabled but SHA-384
+     was disabled. Fix the dependency. Fixes #4472.
+   * Do not offer SHA384 cipher suites when SHA-384 is disabled. Fixes #4499.
+   * With MBEDTLS_PSA_CRYPTO_C disabled, some functions were getting built
+     nonetheless, resulting in undefined reference errors when building a
+     shared library. Reported by Guillermo Garcia M. in #4411.
+   * Fix test suite code on platforms where int32_t is not int, such as
+     Arm Cortex-M. Fixes #4530.
+   * Fix some issues affecting MBEDTLS_ARIA_ALT implementations: a misplaced
+     directive in a header and a missing initialization in the self-test.
+   * Fix a missing initialization in the Camellia self-test, affecting
+     MBEDTLS_CAMELLIA_ALT implementations.
+   * Restore the ability to configure PSA via Mbed TLS options to support RSA
+     key pair operations but exclude RSA key generation. When MBEDTLS_GENPRIME
+     is not defined PSA will no longer attempt to use mbedtls_rsa_gen_key().
+     Fixes #4512.
+   * Fix a regression introduced in 2.24.0 which broke (D)TLS CBC ciphersuites
+     (when the encrypt-then-MAC extension is not in use) with some ALT
+     implementations of the underlying hash (SHA-1, SHA-256, SHA-384), causing
+     the affected side to wrongly reject valid messages. Fixes #4118.
+   * Remove outdated check-config.h check that prevented implementing the
+     timing module on Mbed OS. Fixes #4633.
+   * Fix PSA_ALG_TLS12_PRF and PSA_ALG_TLS12_PSK_TO_MS being too permissive
+     about missing inputs.
+   * Fix mbedtls_net_poll() and mbedtls_net_recv_timeout() often failing with
+     MBEDTLS_ERR_NET_POLL_FAILED on Windows. Fixes #4465.
+   * Fix a resource leak in a test suite with an alternative AES
+     implementation. Fixes #4176.
+   * Fix a crash in mbedtls_mpi_debug_mpi on a bignum having 0 limbs. This
+     could notably be triggered by setting the TLS debug level to 3 or above
+     and using a Montgomery curve for the key exchange. Reported by lhuang04
+     in #4578. Fixes #4608.
+   * psa_verify_hash() was relying on implementation-specific behavior of
+     mbedtls_rsa_rsassa_pss_verify() and was causing failures in some _ALT
+     implementations. This reliance is now removed. Fixes #3990.
+   * Disallow inputs of length different from the corresponding hash when
+     signing or verifying with PSA_ALG_RSA_PSS (The PSA Crypto API mandates
+     that PSA_ALG_RSA_PSS uses the same hash throughout the algorithm.)
+   * Fix a null pointer dereference when mbedtls_mpi_exp_mod() was called with
+     A=0 represented with 0 limbs. Up to and including Mbed TLS 2.26, this bug
+     could not be triggered by code that constructed A with one of the
+     mbedtls_mpi_read_xxx functions (including in particular TLS code) since
+     those always built an mpi object with at least one limb.
+     Credit to OSS-Fuzz. Fixes #4641.
+   * Fix mbedtls_mpi_gcd(G,A,B) when the value of B is zero. This had no
+     effect on Mbed TLS's internal use of mbedtls_mpi_gcd(), but may affect
+     applications that call mbedtls_mpi_gcd() directly. Fixes #4642.
+   * The PSA API no longer allows the creation or destruction of keys with a
+     read-only lifetime. The persistence level PSA_KEY_PERSISTENCE_READ_ONLY
+     can now only be used as intended, for keys that cannot be modified through
+     normal use of the API.
+   * When MBEDTLS_PSA_CRYPTO_SPM is enabled, crypto_spe.h was not included
+     in all the right places. Include it from crypto_platform.h, which is
+     the natural place. Fixes #4649.
+   * mbedtls_pk_sign() and mbedtls_pk_verify() and their extended and
+     restartable variants now always honor the specified hash length if
+     nonzero. Before, for RSA, hash_len was ignored in favor of the length of
+     the specified hash algorithm.
+   * Fix which alert is sent in some cases to conform to the
+     applicable RFC: on an invalid Finished message value, an
+     invalid max_fragment_length extension, or an
+     unsupported extension used by the server.
+   * Correct (change from 12 to 13 bytes) the value of the macro describing the
+     maximum nonce length returned by psa_aead_generate_nonce().
+
+Changes
+   * Add extra printf compiler warning flags to builds.
+   * Fix memsan build false positive in x509_crt.c with Clang 11
+   * Fix the setting of the read timeout in the DTLS sample programs.
+   * Remove the AES sample application programs/aes/aescrypt2 which shows
+     bad cryptographic practice. Fix #1906.
+   * Alternative implementations of CMAC may now opt to not support 3DES as a
+     CMAC block cipher, and still pass the CMAC self test.
+   * Remove configs/config-psa-crypto.h, which was identical to the default
+     configuration except for having some extra cryptographic mechanisms
+     enabled and for unintended differences. This configuration was primarily
+     intended to demonstrate the PSA API, and lost most of its usefulness when
+     MBEDTLS_PSA_CRYPTO_C became enabled by default.
+   * When building the test suites with GNU make, invoke python3 or python, not
+     python2, which is no longer supported upstream.
+   * When using session cache based session resumption on the server,
+     double-check that custom session cache implementations return
+     sessions which are consistent with the negotiated ciphersuite
+     and compression method.
+   * Fix build failure on MinGW toolchain when __USE_MING_ANSI_STDIO is on.
+     When that flag is on, standard GNU C printf format specifiers
+     should be used.
+   * Reduce the default value of MBEDTLS_ECP_WINDOW_SIZE. This reduces RAM usage
+     during ECC operations at a negligible performance cost.
+   * mbedtls_mpi_read_binary(), mbedtls_mpi_read_binary_le() and
+     mbedtls_mpi_read_string() now construct an mbedtls_mpi object with 0 limbs
+     when their input has length 0. Note that this is an implementation detail
+     and can change at any time, so this change should be transparent, but it
+     may result in mbedtls_mpi_write_binary() or mbedtls_mpi_write_string()
+     now writing an empty string where it previously wrote one or more
+     zero digits when operating from values constructed with an mpi_read
+     function and some mpi operations.
+   * Implicitly add PSA_KEY_USAGE_SIGN_MESSAGE key usage policy flag when
+     PSA_KEY_USAGE_SIGN_HASH flag is set and PSA_KEY_USAGE_VERIFY_MESSAGE flag
+     when PSA_KEY_USAGE_VERIFY_HASH flag is set. This usage flag extension
+     is also applied when loading a key from storage.
+
 = mbed TLS 2.26.0 branch released 2021-03-08
 
 API changes
@@ -202,7 +402,7 @@ Security
      Johan Malmgren and Johan Uppman Bruce from Sectra.
 
 Bugfix
-   * Fix an invalid (but nonzero) return code from mbedtls_pk_parse_subpubkey()
+   * Fix an invalid (but non-zero) return code from mbedtls_pk_parse_subpubkey()
      when the input has trailing garbage. Fixes #2512.
    * Fix build failure in configurations where MBEDTLS_USE_PSA_CRYPTO is
      enabled but ECDSA is disabled. Contributed by jdurkop. Fixes #3294.
diff --git a/ChangeLog.d/add-missing-parenthesis.txt b/ChangeLog.d/add-missing-parenthesis.txt
deleted file mode 100644
index 9576ff3..0000000
--- a/ChangeLog.d/add-missing-parenthesis.txt
+++ /dev/null
@@ -1,3 +0,0 @@
-Bugfix
-   * Fix a compilation error when MBEDTLS_ECP_RANDOMIZE_MXZ_ALT is
-     defined. Fixes #4217.
diff --git a/ChangeLog.d/aescrypt2.txt b/ChangeLog.d/aescrypt2.txt
deleted file mode 100644
index 7ffa49e..0000000
--- a/ChangeLog.d/aescrypt2.txt
+++ /dev/null
@@ -1,3 +0,0 @@
-Changes
-   * Remove the AES sample application programs/aes/aescrypt2 which shows
-     bad cryptographic practice. Fix #1906.
diff --git a/ChangeLog.d/allow_alt_cmac_without_des.txt b/ChangeLog.d/allow_alt_cmac_without_des.txt
deleted file mode 100644
index 5193a9e..0000000
--- a/ChangeLog.d/allow_alt_cmac_without_des.txt
+++ /dev/null
@@ -1,3 +0,0 @@
-Changes
-   * Alternative implementations of CMAC may now opt to not support 3DES as a
-     CMAC block cipher, and still pass the CMAC self test.
diff --git a/ChangeLog.d/aria-alt.txt b/ChangeLog.d/aria-alt.txt
deleted file mode 100644
index 20aaa2b..0000000
--- a/ChangeLog.d/aria-alt.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-Bugfix
-   * Fix some issues affecting MBEDTLS_ARIA_ALT implementations: a misplaced
-     directive in a header and a missing initialization in the self-test.
-   * Fix a missing initialization in the Camellia self-test, affecting
-     MBEDTLS_CAMELLIA_ALT implementations.
diff --git a/ChangeLog.d/bugfix_PR3616.txt b/ChangeLog.d/bugfix_PR3616.txt
deleted file mode 100644
index 47d1044..0000000
--- a/ChangeLog.d/bugfix_PR3616.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-Bugfix
-   * Fix premature fopen() call in mbedtls_entropy_write_seed_file which may
-     lead to the seed file corruption in case if the path to the seed file is
-     equal to MBEDTLS_PLATFORM_STD_NV_SEED_FILE. Contributed by Victor
-     Krasnoshchok in #3616.
diff --git a/ChangeLog.d/ciphersuite-sha1-sha384-guard.txt b/ChangeLog.d/ciphersuite-sha1-sha384-guard.txt
deleted file mode 100644
index d253f34..0000000
--- a/ChangeLog.d/ciphersuite-sha1-sha384-guard.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-Bugfix
-   * The cipher suite TLS-RSA-WITH-CAMELLIA-256-GCM-SHA384 was not available
-     when SHA-1 was disabled and was offered when SHA-1 was enabled but SHA-384
-     was disabled. Fix the dependency. Fixes #4472.
diff --git a/ChangeLog.d/ciphersuite-sha384-guard.txt b/ChangeLog.d/ciphersuite-sha384-guard.txt
deleted file mode 100644
index 0ddf463..0000000
--- a/ChangeLog.d/ciphersuite-sha384-guard.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-Bugfix
-   * Do not offer SHA384 cipher suites when SHA-384 is disabled. Fixes #4499.
diff --git a/ChangeLog.d/dhm_min_bitlen.txt b/ChangeLog.d/dhm_min_bitlen.txt
deleted file mode 100644
index e7ea827..0000000
--- a/ChangeLog.d/dhm_min_bitlen.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-Bugfix
-   * In a TLS client, enforce the Diffie-Hellman minimum parameter size
-     set with mbedtls_ssl_conf_dhm_min_bitlen() precisely. Before, the
-     minimum size was rounded down to the nearest multiple of 8.
diff --git a/ChangeLog.d/dtls_sample_use_read_timeout.txt b/ChangeLog.d/dtls_sample_use_read_timeout.txt
deleted file mode 100644
index e3150d6..0000000
--- a/ChangeLog.d/dtls_sample_use_read_timeout.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-Changes
-   * Fix the setting of the read timeout in the DTLS sample programs.
diff --git a/ChangeLog.d/ecp-window-size.txt b/ChangeLog.d/ecp-window-size.txt
deleted file mode 100644
index 909d4e8..0000000
--- a/ChangeLog.d/ecp-window-size.txt
+++ /dev/null
@@ -1,3 +0,0 @@
-Changes
-   * Reduce the default value of MBEDTLS_ECP_WINDOW_SIZE. This reduces RAM usage
-     during ECC operations at a negligible performance cost.
diff --git a/ChangeLog.d/ensure_hash_len_is_valid.txt b/ChangeLog.d/ensure_hash_len_is_valid.txt
deleted file mode 100644
index d3e2930..0000000
--- a/ChangeLog.d/ensure_hash_len_is_valid.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-Bugfix
-   * mbedtls_pk_sign() and mbedtls_pk_verify() and their extended and
-     restartable variants now always honor the specified hash length if
-     nonzero. Before, for RSA, hash_len was ignored in favor of the length of
-     the specified hash algorithm.
diff --git a/ChangeLog.d/fix-invalid-id-error-code.txt b/ChangeLog.d/fix-invalid-id-error-code.txt
deleted file mode 100644
index 069a767..0000000
--- a/ChangeLog.d/fix-invalid-id-error-code.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-Bugfix
-   * PSA functions creating a key now return PSA_ERROR_INVALID_ARGUMENT rather
-     than PSA_ERROR_INVALID_HANDLE when the identifier specified for the key
-     to create is not valid, bringing them in line with version 1.0.0 of the
-     specification. Fix #4271.
diff --git a/ChangeLog.d/fix-mingw-build.txt b/ChangeLog.d/fix-mingw-build.txt
deleted file mode 100644
index 383b1c7..0000000
--- a/ChangeLog.d/fix-mingw-build.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-Changes
-   * fix build failure on MinGW toolchain when __USE_MING_ANSI_STDIO is on.
-     When that flag is on, standard GNU C printf format specifiers
-     should be used.
-
diff --git a/ChangeLog.d/fix-pk-parse-key-error-code.txt b/ChangeLog.d/fix-pk-parse-key-error-code.txt
deleted file mode 100644
index 3aa330b..0000000
--- a/ChangeLog.d/fix-pk-parse-key-error-code.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-Bugfix
-   * Fix an incorrect error code when parsing a PKCS#8 private key.
diff --git a/ChangeLog.d/fix-printf-specifiers.txt b/ChangeLog.d/fix-printf-specifiers.txt
deleted file mode 100644
index 4867721..0000000
--- a/ChangeLog.d/fix-printf-specifiers.txt
+++ /dev/null
@@ -1,10 +0,0 @@
-Bugfix
-   * Add printf function attributes to mbedtls_debug_print_msg to ensure we
-     get printf format specifier warnings.
-Changes
-   * Add extra printf compiler warning flags to builds.
-Requirement changes
-   * The library now uses the %zu format specifier with the printf() family of
-     functions, so requires a toolchain that supports it. This change does not
-     affect the maintained LTS branches, so when contributing changes please
-     bear this in mind and do not add them to backported code.
diff --git a/ChangeLog.d/fix-ssl-cf-hmac-alt.txt b/ChangeLog.d/fix-ssl-cf-hmac-alt.txt
deleted file mode 100644
index 57ffa02..0000000
--- a/ChangeLog.d/fix-ssl-cf-hmac-alt.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-Bugfix
-   * Fix a regression introduced in 2.24.0 which broke (D)TLS CBC ciphersuites
-     (when the encrypt-then-MAC extension is not in use) with some ALT
-     implementations of the underlying hash (SHA-1, SHA-256, SHA-384), causing
-     the affected side to wrongly reject valid messages. Fixes #4118.
diff --git a/ChangeLog.d/fix_memsan_build_clang11.txt b/ChangeLog.d/fix_memsan_build_clang11.txt
deleted file mode 100644
index 3f5cc05..0000000
--- a/ChangeLog.d/fix_memsan_build_clang11.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-Changes
-   * Fix memsan build false positive in x509_crt.c with clang 11
diff --git a/ChangeLog.d/fix_return_type_for_invalid_crypto_key.txt b/ChangeLog.d/fix_return_type_for_invalid_crypto_key.txt
deleted file mode 100644
index dc6996e..0000000
--- a/ChangeLog.d/fix_return_type_for_invalid_crypto_key.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-Bugfix
-   * PSA functions other than psa_open_key now return PSA_ERROR_INVALID_HANDLE
-     rather than PSA_ERROR_DOES_NOT_EXIST for an invalid handle, bringing them
-     in line with version 1.0.0 of the specification. Fix #4162.
diff --git a/ChangeLog.d/fix_tls_alert_codes.txt b/ChangeLog.d/fix_tls_alert_codes.txt
deleted file mode 100644
index 10235d7..0000000
--- a/ChangeLog.d/fix_tls_alert_codes.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-Bugfix
-   * Fix which alert is sent in some cases to conform to the
-     applicable RFC: on an invalid Finished message value, an
-     invalid max_fragment_length extension, or an
-     unsupported extension used by the server.
diff --git a/ChangeLog.d/host_test-int32.txt b/ChangeLog.d/host_test-int32.txt
deleted file mode 100644
index 60ef8e9..0000000
--- a/ChangeLog.d/host_test-int32.txt
+++ /dev/null
@@ -1,3 +0,0 @@
-Bugfix
-   * Fix test suite code on platforms where int32_t is not int, such as
-     Arm Cortex-M. Fixes #4530.
diff --git a/ChangeLog.d/implicit_key_usage_policy.txt b/ChangeLog.d/implicit_key_usage_policy.txt
deleted file mode 100644
index ee33ecb..0000000
--- a/ChangeLog.d/implicit_key_usage_policy.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-Changes
-   * Implicitly add PSA_KEY_USAGE_SIGN_MESSAGE key usage policy flag when
-     PSA_KEY_USAGE_SIGN_HASH flag is set and PSA_KEY_USAGE_VERIFY_MESSAGE flag
-     when PSA_KEY_USAGE_VERIFY_HASH flag is set. This usage flag extension
-     is also applied when loading a key from storage.
diff --git a/ChangeLog.d/issue1792.txt b/ChangeLog.d/issue1792.txt
deleted file mode 100644
index 9949bf4..0000000
--- a/ChangeLog.d/issue1792.txt
+++ /dev/null
@@ -1,3 +0,0 @@
-Bugfix
-   * Fix a bug in ECDSA that would cause it to fail when the hash is all-bits
-     zero. Fixes #1792
diff --git a/ChangeLog.d/issue4176.txt b/ChangeLog.d/issue4176.txt
deleted file mode 100644
index ddca37f..0000000
--- a/ChangeLog.d/issue4176.txt
+++ /dev/null
@@ -1,3 +0,0 @@
-Bugfix
-   * Fix a resource leak in a test suite with an alternative AES
-     implementation. Fixes #4176.
diff --git a/ChangeLog.d/make-generate-tests-python.txt b/ChangeLog.d/make-generate-tests-python.txt
deleted file mode 100644
index 4b9009d..0000000
--- a/ChangeLog.d/make-generate-tests-python.txt
+++ /dev/null
@@ -1,3 +0,0 @@
-Changes
-   * When building the test suites with GNU make, invoke python3 or python, not
-     python2, which is no longer supported upstream.
diff --git a/ChangeLog.d/mbed-can-do-timing.txt b/ChangeLog.d/mbed-can-do-timing.txt
deleted file mode 100644
index d83da02..0000000
--- a/ChangeLog.d/mbed-can-do-timing.txt
+++ /dev/null
@@ -1,3 +0,0 @@
-Bugfix
-   * Remove outdated check-config.h check that prevented implementing the
-     timing module on Mbed OS. Fixes #4633.
diff --git a/ChangeLog.d/mbedtls_debug_print_mpi.txt b/ChangeLog.d/mbedtls_debug_print_mpi.txt
deleted file mode 100644
index d1b4f5b..0000000
--- a/ChangeLog.d/mbedtls_debug_print_mpi.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-Bugfix
-   * Fix a crash in mbedtls_mpi_debug_mpi on a bignum having 0 limbs. This
-     could notably be triggered by setting the TLS debug level to 3 or above
-     and using a Montgomery curve for the key exchange. Reported by lhuang04
-     in #4578. Fixes #4608.
diff --git a/ChangeLog.d/mpi_exp_mod-zero.txt b/ChangeLog.d/mpi_exp_mod-zero.txt
deleted file mode 100644
index 9df9031..0000000
--- a/ChangeLog.d/mpi_exp_mod-zero.txt
+++ /dev/null
@@ -1,7 +0,0 @@
-Bugfix
-   * Fix a null pointer dereference when mbedtls_mpi_exp_mod() was called with
-     A=0 represented with 0 limbs. Up to and including Mbed TLS 2.26, this bug
-     could not be triggered by code that constructed A with one of the
-     mbedtls_mpi_read_xxx functions (including in particular TLS code) since
-     those always built an mpi object with at least one limb.
-     Credit to OSS-Fuzz. Fixes #4641.
diff --git a/ChangeLog.d/mpi_gcd-0.txt b/ChangeLog.d/mpi_gcd-0.txt
deleted file mode 100644
index 41e11e1..0000000
--- a/ChangeLog.d/mpi_gcd-0.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-Bugfix
-   * Fix mbedtls_mpi_gcd(G,A,B) when the value of B is zero. This had no
-     effect on Mbed TLS's internal use of mbedtls_mpi_gcd(), but may affect
-     applications that call mbedtls_mpi_gcd() directly. Fixes #4642.
diff --git a/ChangeLog.d/mpi_random.txt b/ChangeLog.d/mpi_random.txt
deleted file mode 100644
index 9e6a416..0000000
--- a/ChangeLog.d/mpi_random.txt
+++ /dev/null
@@ -1,3 +0,0 @@
-Features
-   * The new function mbedtls_mpi_random() generates a random value in a
-     given range uniformly.
diff --git a/ChangeLog.d/mpi_read_negative_zero.txt b/ChangeLog.d/mpi_read_negative_zero.txt
deleted file mode 100644
index 3285769..0000000
--- a/ChangeLog.d/mpi_read_negative_zero.txt
+++ /dev/null
@@ -1,7 +0,0 @@
-Bugfix
-   * Fix some cases in the bignum module where the library constructed an
-     unintended representation of the value 0 which was not processed
-     correctly by some bignum operations. This could happen when
-     mbedtls_mpi_read_string() was called on "-0", or when
-     mbedtls_mpi_mul_mpi() and mbedtls_mpi_mul_int() was called with one of
-     the arguments being negative and the other being 0. Fixes #4643.
diff --git a/ChangeLog.d/mpi_read_zero.txt b/ChangeLog.d/mpi_read_zero.txt
deleted file mode 100644
index 0c25159..0000000
--- a/ChangeLog.d/mpi_read_zero.txt
+++ /dev/null
@@ -1,9 +0,0 @@
-Changes
-   * mbedtls_mpi_read_binary(), mbedtls_mpi_read_binary_le() and
-     mbedtls_mpi_read_string() now construct an mbedtls_mpi object with 0 limbs
-     when their input has length 0. Note that this is an implementation detail
-     and can change at any time, so this change should be transparent, but it
-     may result in mbedtls_mpi_write_binary() or mbedtls_mpi_write_string()
-     now writing an empty string where it previously wrote one or more
-     zero digits when operating from values constructed with an mpi_read
-     function and some mpi operations.
diff --git a/ChangeLog.d/one-shot-mac.txt b/ChangeLog.d/one-shot-mac.txt
deleted file mode 100644
index 112891d..0000000
--- a/ChangeLog.d/one-shot-mac.txt
+++ /dev/null
@@ -1,3 +0,0 @@
-Features
-   * Implement psa_mac_compute() and psa_mac_verify() as defined in the
-     PSA Cryptograpy API 1.0.0 specification.
diff --git a/ChangeLog.d/one-shot_cipher_functions.txt b/ChangeLog.d/one-shot_cipher_functions.txt
deleted file mode 100644
index 3bb85e1..0000000
--- a/ChangeLog.d/one-shot_cipher_functions.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-API changes
-   * Implement one-shot cipher functions, psa_cipher_encrypt and
-     psa_cipher_decrypt, according to the PSA Crypto API 1.0.0
-     specification.
diff --git a/ChangeLog.d/pkcs1_v21_sign_ext.txt b/ChangeLog.d/pkcs1_v21_sign_ext.txt
deleted file mode 100644
index 76dfaf9..0000000
--- a/ChangeLog.d/pkcs1_v21_sign_ext.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-Features
-   * Add mbedtls_rsa_rsassa_pss_sign_ext() function allowing to generate a
-     signature with a specific salt length. This function allows to validate
-     test cases provided in the NIST's CAVP test suite. Contributed by Cédric
-     Meuter in PR #3183.
diff --git a/ChangeLog.d/posix-define.txt b/ChangeLog.d/posix-define.txt
deleted file mode 100644
index 98cf2d0..0000000
--- a/ChangeLog.d/posix-define.txt
+++ /dev/null
@@ -1,6 +0,0 @@
-Bugfix
-   * In library/net_sockets.c, _POSIX_C_SOURCE and _XOPEN_SOURCE are
-     defined to specific values.  If the code is used in a context
-     where these are already defined, this can result in a compilation
-     error.  Instead, assume that if they are defined, the values will
-     be adequate to build Mbed TLS.
diff --git a/ChangeLog.d/psa-aead-output-size-macros-1.0.txt b/ChangeLog.d/psa-aead-output-size-macros-1.0.txt
deleted file mode 100644
index 94a66a5..0000000
--- a/ChangeLog.d/psa-aead-output-size-macros-1.0.txt
+++ /dev/null
@@ -1,12 +0,0 @@
-API changes
-   * Update AEAD output size macros to bring them in line with the PSA Crypto
-     API version 1.0 spec. This version of the spec parameterizes them on the
-     key type used, as well as the key bit-size in the case of
-     PSA_AEAD_TAG_LENGTH.
-     The old versions of these macros were renamed and deprecated as follows:
-     - PSA_AEAD_TAG_LENGTH          -> PSA_AEAD_TAG_LENGTH_1_ARG
-     - PSA_AEAD_ENCRYPT_OUTPUT_SIZE -> PSA_AEAD_ENCRYPT_OUTPUT_SIZE_2_ARG
-     - PSA_AEAD_DECRYPT_OUTPUT_SIZE -> PSA_AEAD_DECRYPT_OUTPUT_SIZE_2_ARG
-     - PSA_AEAD_UPDATE_OUTPUT_SIZE  -> PSA_AEAD_UPDATE_OUTPUT_SIZE_2_ARG
-     - PSA_AEAD_FINISH_OUTPUT_SIZE  -> PSA_AEAD_FINISH_OUTPUT_SIZE_1_ARG
-     - PSA_AEAD_VERIFY_OUTPUT_SIZE  -> PSA_AEAD_VERIFY_OUTPUT_SIZE_1_ARG
diff --git a/ChangeLog.d/psa-builtin-keys-implementation.txt b/ChangeLog.d/psa-builtin-keys-implementation.txt
deleted file mode 100644
index 66ba77d..0000000
--- a/ChangeLog.d/psa-builtin-keys-implementation.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-Features
-   * Added support for built-in driver keys through the PSA opaque crypto
-     driver interface. Refer to the documentation of
-     MBEDTLS_PSA_CRYPTO_BUILTIN_KEYS for more information.
diff --git a/ChangeLog.d/psa-read-only-keys.txt b/ChangeLog.d/psa-read-only-keys.txt
deleted file mode 100644
index a4a2823..0000000
--- a/ChangeLog.d/psa-read-only-keys.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-Bugfix
-   * The PSA API no longer allows the creation or destruction of keys with a
-     read-only lifetime. The persistence level PSA_KEY_PERSISTENCE_READ_ONLY
-     can now only be used as intended, for keys that cannot be modified through
-     normal use of the API.
diff --git a/ChangeLog.d/psa-rsa-verify-alt-fix.txt b/ChangeLog.d/psa-rsa-verify-alt-fix.txt
deleted file mode 100644
index 74804ca..0000000
--- a/ChangeLog.d/psa-rsa-verify-alt-fix.txt
+++ /dev/null
@@ -1,7 +0,0 @@
-Bugfix
-   * psa_verify_hash() was relying on implementation-specific behavior of
-     mbedtls_rsa_rsassa_pss_verify() and was causing failures in some _ALT
-     implementations. This reliance is now removed. Fixes #3990.
-   * Disallow inputs of length different from the corresponding hash when
-     signing or verifying with PSA_ALG_RSA_PSS (The PSA Crypto API mandates
-     that PSA_ALG_RSA_PSS uses the same hash throughout the algorithm.)
diff --git a/ChangeLog.d/psa-without-genprime-fix.txt b/ChangeLog.d/psa-without-genprime-fix.txt
deleted file mode 100644
index 8a7153a..0000000
--- a/ChangeLog.d/psa-without-genprime-fix.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-Bugfix
-   * Restore the ability to configure PSA via Mbed TLS options to support RSA
-     key pair operations but exclude RSA key generation. When MBEDTLS_GENPRIME
-     is not defined PSA will no longer attempt to use mbedtls_rsa_gen_key().
-     Fixes #4512.
diff --git a/ChangeLog.d/psa_key_derivation-bad_workflow.txt b/ChangeLog.d/psa_key_derivation-bad_workflow.txt
deleted file mode 100644
index 7fd03e6..0000000
--- a/ChangeLog.d/psa_key_derivation-bad_workflow.txt
+++ /dev/null
@@ -1,3 +0,0 @@
-Bugfix
-   * Fix PSA_ALG_TLS12_PRF and PSA_ALG_TLS12_PSK_TO_MS being too permissive
-     about missing inputs.
diff --git a/ChangeLog.d/psa_sign_message.txt b/ChangeLog.d/psa_sign_message.txt
deleted file mode 100644
index 2d77ec0..0000000
--- a/ChangeLog.d/psa_sign_message.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-Features
-   * Implement psa_sign_message() and psa_verify_message().
diff --git a/ChangeLog.d/random-range.txt b/ChangeLog.d/random-range.txt
deleted file mode 100644
index dc35ec6..0000000
--- a/ChangeLog.d/random-range.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-Security
-* Fix a bias in the generation of finite-field Diffie-Hellman-Merkle (DHM)
-  private keys and of blinding values for DHM and elliptic curves (ECP)
-  computations. Reported by FlorianF89 in #4245.
diff --git a/ChangeLog.d/remove-config-psa-crypto.txt b/ChangeLog.d/remove-config-psa-crypto.txt
deleted file mode 100644
index 7903b8c..0000000
--- a/ChangeLog.d/remove-config-psa-crypto.txt
+++ /dev/null
@@ -1,6 +0,0 @@
-Changes
-   * Remove configs/config-psa-crypto.h, which was identical to the default
-     configuration except for having some extra cryptographic mechanisms
-     enabled and for unintended differences. This configuration was primarily
-     intended to demonstrate the PSA API, and lost most of its usefulness when
-     MBEDTLS_PSA_CRYPTO_C became enabled by default.
diff --git a/ChangeLog.d/session-cache.txt b/ChangeLog.d/session-cache.txt
deleted file mode 100644
index a12db3c..0000000
--- a/ChangeLog.d/session-cache.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-Changes
-    * When using session cache based session resumption on the server,
-      double-check that custom session cache implementations return
-      sessions which are consistent with the negotiated ciphersuite
-      and compression method.
diff --git a/ChangeLog.d/spm_build.txt b/ChangeLog.d/spm_build.txt
deleted file mode 100644
index 6016d84..0000000
--- a/ChangeLog.d/spm_build.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-Bugfix
-   * When MBEDTLS_PSA_CRYPTO_SPM is enabled, crypto_spe.h was not included
-     in all the right places. Include it from crypto_platform.h, which is
-     the natural place. Fixes #4649.
diff --git a/ChangeLog.d/undefined_reference_without_psa.txt b/ChangeLog.d/undefined_reference_without_psa.txt
deleted file mode 100644
index 4dae534..0000000
--- a/ChangeLog.d/undefined_reference_without_psa.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-Bugfix
-   * With MBEDTLS_PSA_CRYPTO_C disabled, some functions were getting built
-     nonetheless, resulting in undefined reference errors when building a
-     shared library. Reported by Guillermo Garcia M. in #4411.
diff --git a/ChangeLog.d/winsock.txt b/ChangeLog.d/winsock.txt
deleted file mode 100644
index 0b42e69..0000000
--- a/ChangeLog.d/winsock.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-Bugfix
-   * Fix mbedtls_net_poll() and mbedtls_net_recv_timeout() often failing with
-     MBEDTLS_ERR_NET_POLL_FAILED on Windows. Fixes #4465.
-
diff --git a/configs/config-suite-b.h b/configs/config-suite-b.h
index 6eb03a9..9cad382 100644
--- a/configs/config-suite-b.h
+++ b/configs/config-suite-b.h
@@ -80,8 +80,7 @@
 #define MBEDTLS_AES_ROM_TABLES
 
 /* Save RAM by adjusting to our exact needs */
-#define MBEDTLS_ECP_MAX_BITS   384
-#define MBEDTLS_MPI_MAX_SIZE    48 // 384 bits is 48 bytes
+#define MBEDTLS_MPI_MAX_SIZE    48 // 48 bytes for a 384-bit elliptic curve
 
 /* Save RAM at the expense of speed, see ecp.h */
 #define MBEDTLS_ECP_WINDOW_SIZE        2
diff --git a/configs/config-thread.h b/configs/config-thread.h
index 47dd5e2..8464fcb 100644
--- a/configs/config-thread.h
+++ b/configs/config-thread.h
@@ -81,8 +81,7 @@
 #define MBEDTLS_AES_ROM_TABLES
 
 /* Save RAM by adjusting to our exact needs */
-#define MBEDTLS_ECP_MAX_BITS             256
-#define MBEDTLS_MPI_MAX_SIZE              32 // 256 bits is 32 bytes
+#define MBEDTLS_MPI_MAX_SIZE              32 // 32 bytes for a 256-bit elliptic curve
 
 /* Save ROM and a few bytes of RAM by specifying our own ciphersuite list */
 #define MBEDTLS_SSL_CIPHERSUITES MBEDTLS_TLS_ECJPAKE_WITH_AES_128_CCM_8
diff --git a/doxygen/input/doc_mainpage.h b/doxygen/input/doc_mainpage.h
index dcbb705..4ff63ce 100644
--- a/doxygen/input/doc_mainpage.h
+++ b/doxygen/input/doc_mainpage.h
@@ -22,7 +22,7 @@
  */
 
 /**
- * @mainpage mbed TLS v2.26.0 source code documentation
+ * @mainpage mbed TLS v2.27.0 source code documentation
  *
  * This documentation describes the internal structure of mbed TLS.  It was
  * automatically generated from specially formatted comment blocks in
diff --git a/doxygen/mbedtls.doxyfile b/doxygen/mbedtls.doxyfile
index 27cba6e..186c148 100644
--- a/doxygen/mbedtls.doxyfile
+++ b/doxygen/mbedtls.doxyfile
@@ -28,7 +28,7 @@ DOXYFILE_ENCODING      = UTF-8
 # identify the project. Note that if you do not use Doxywizard you need
 # to put quotes around the project name if it contains spaces.
 
-PROJECT_NAME           = "mbed TLS v2.26.0"
+PROJECT_NAME           = "mbed TLS v2.27.0"
 
 # The PROJECT_NUMBER tag can be used to enter a project or revision number.
 # This could be handy for archiving the generated documentation or
diff --git a/include/mbedtls/bn_mul.h b/include/mbedtls/bn_mul.h
index 17d057f..a0fa677 100644
--- a/include/mbedtls/bn_mul.h
+++ b/include/mbedtls/bn_mul.h
@@ -44,6 +44,46 @@
 
 #include "mbedtls/bignum.h"
 
+
+/*
+ * Conversion macros for embedded constants:
+ * build lists of mbedtls_mpi_uint's from lists of unsigned char's grouped by 8, 4 or 2
+ */
+#if defined(MBEDTLS_HAVE_INT32)
+
+#define MBEDTLS_BYTES_TO_T_UINT_4( a, b, c, d )               \
+    ( (mbedtls_mpi_uint) (a) <<  0 ) |                        \
+    ( (mbedtls_mpi_uint) (b) <<  8 ) |                        \
+    ( (mbedtls_mpi_uint) (c) << 16 ) |                        \
+    ( (mbedtls_mpi_uint) (d) << 24 )
+
+#define MBEDTLS_BYTES_TO_T_UINT_2( a, b )                   \
+    MBEDTLS_BYTES_TO_T_UINT_4( a, b, 0, 0 )
+
+#define MBEDTLS_BYTES_TO_T_UINT_8( a, b, c, d, e, f, g, h ) \
+    MBEDTLS_BYTES_TO_T_UINT_4( a, b, c, d ),                \
+    MBEDTLS_BYTES_TO_T_UINT_4( e, f, g, h )
+
+#else /* 64-bits */
+
+#define MBEDTLS_BYTES_TO_T_UINT_8( a, b, c, d, e, f, g, h )   \
+    ( (mbedtls_mpi_uint) (a) <<  0 ) |                        \
+    ( (mbedtls_mpi_uint) (b) <<  8 ) |                        \
+    ( (mbedtls_mpi_uint) (c) << 16 ) |                        \
+    ( (mbedtls_mpi_uint) (d) << 24 ) |                        \
+    ( (mbedtls_mpi_uint) (e) << 32 ) |                        \
+    ( (mbedtls_mpi_uint) (f) << 40 ) |                        \
+    ( (mbedtls_mpi_uint) (g) << 48 ) |                        \
+    ( (mbedtls_mpi_uint) (h) << 56 )
+
+#define MBEDTLS_BYTES_TO_T_UINT_4( a, b, c, d )             \
+    MBEDTLS_BYTES_TO_T_UINT_8( a, b, c, d, 0, 0, 0, 0 )
+
+#define MBEDTLS_BYTES_TO_T_UINT_2( a, b )                   \
+    MBEDTLS_BYTES_TO_T_UINT_8( a, b, 0, 0, 0, 0, 0, 0 )
+
+#endif /* bits in mbedtls_mpi_uint */
+
 #if defined(MBEDTLS_HAVE_ASM)
 
 #ifndef asm
diff --git a/include/mbedtls/config.h b/include/mbedtls/config.h
index 1ae5125..e2f460c 100644
--- a/include/mbedtls/config.h
+++ b/include/mbedtls/config.h
@@ -3616,7 +3616,7 @@
 //#define MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT      384 /**< Maximum size of (re)seed buffer */
 
 /* ECP options */
-//#define MBEDTLS_ECP_MAX_BITS             521 /**< Maximum bit size of groups */
+//#define MBEDTLS_ECP_MAX_BITS             521 /**< Maximum bit size of groups. Normally determined automatically from the configured curves. */
 //#define MBEDTLS_ECP_WINDOW_SIZE            4 /**< Maximum window size used */
 //#define MBEDTLS_ECP_FIXED_POINT_OPTIM      1 /**< Enable fixed-point speed-up */
 
diff --git a/include/mbedtls/ecp.h b/include/mbedtls/ecp.h
index 1e614ed..06880a0 100644
--- a/include/mbedtls/ecp.h
+++ b/include/mbedtls/ecp.h
@@ -96,6 +96,7 @@ extern "C" {
  * - Add it at the end of this enum, otherwise you'll break the ABI by
  *   changing the numerical value for existing curves.
  * - Increment MBEDTLS_ECP_DP_MAX below if needed.
+ * - Update the calculation of MBEDTLS_ECP_MAX_BITS_MIN below.
  * - Add the corresponding MBEDTLS_ECP_DP_xxx_ENABLED macro definition to
  *   config.h.
  * - List the curve as a dependency of MBEDTLS_ECP_C and
@@ -171,6 +172,40 @@ typedef struct mbedtls_ecp_point
 }
 mbedtls_ecp_point;
 
+/* Determine the minimum safe value of MBEDTLS_ECP_MAX_BITS. */
+#if !defined(MBEDTLS_ECP_C)
+#define MBEDTLS_ECP_MAX_BITS_MIN 0
+/* Note: the curves must be listed in DECREASING size! */
+#elif defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED)
+#define MBEDTLS_ECP_MAX_BITS_MIN 521
+#elif defined(MBEDTLS_ECP_DP_BP512R1_ENABLED)
+#define MBEDTLS_ECP_MAX_BITS_MIN 512
+#elif defined(MBEDTLS_ECP_DP_CURVE448_ENABLED)
+#define MBEDTLS_ECP_MAX_BITS_MIN 448
+#elif defined(MBEDTLS_ECP_DP_BP384R1_ENABLED)
+#define MBEDTLS_ECP_MAX_BITS_MIN 384
+#elif defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
+#define MBEDTLS_ECP_MAX_BITS_MIN 384
+#elif defined(MBEDTLS_ECP_DP_BP256R1_ENABLED)
+#define MBEDTLS_ECP_MAX_BITS_MIN 256
+#elif defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED)
+#define MBEDTLS_ECP_MAX_BITS_MIN 256
+#elif defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED)
+#define MBEDTLS_ECP_MAX_BITS_MIN 256
+#elif defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED)
+#define MBEDTLS_ECP_MAX_BITS_MIN 255
+#elif defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED)
+#define MBEDTLS_ECP_MAX_BITS_MIN 225 // n is slightly above 2^224
+#elif defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED)
+#define MBEDTLS_ECP_MAX_BITS_MIN 224
+#elif defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED)
+#define MBEDTLS_ECP_MAX_BITS_MIN 192
+#elif defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED)
+#define MBEDTLS_ECP_MAX_BITS_MIN 192
+#else
+#error "MBEDTLS_ECP_C enabled, but no curve?"
+#endif
+
 #if !defined(MBEDTLS_ECP_ALT)
 /*
  * default mbed TLS elliptic curve arithmetic implementation
@@ -245,11 +280,23 @@ mbedtls_ecp_group;
  * \{
  */
 
-#if !defined(MBEDTLS_ECP_MAX_BITS)
+#if defined(MBEDTLS_ECP_MAX_BITS)
+
+#if MBEDTLS_ECP_MAX_BITS < MBEDTLS_ECP_MAX_BITS_MIN
+#error "MBEDTLS_ECP_MAX_BITS is smaller than the largest supported curve"
+#endif
+
+#elif defined(MBEDTLS_ECP_C)
 /**
  * The maximum size of the groups, that is, of \c N and \c P.
  */
-#define MBEDTLS_ECP_MAX_BITS     521   /**< The maximum size of groups, in bits. */
+#define MBEDTLS_ECP_MAX_BITS     MBEDTLS_ECP_MAX_BITS_MIN
+
+#else
+/* MBEDTLS_ECP_MAX_BITS is not relevant without MBEDTLS_ECP_C, but set it
+ * to a nonzero value so that code that unconditionally allocates an array
+ * of a size based on it keeps working if built without ECC support. */
+#define MBEDTLS_ECP_MAX_BITS 1
 #endif
 
 #define MBEDTLS_ECP_MAX_BYTES    ( ( MBEDTLS_ECP_MAX_BITS + 7 ) / 8 )
diff --git a/include/mbedtls/version.h b/include/mbedtls/version.h
index 5b0c70f..2740479 100644
--- a/include/mbedtls/version.h
+++ b/include/mbedtls/version.h
@@ -37,7 +37,7 @@
  * Major, Minor, Patchlevel
  */
 #define MBEDTLS_VERSION_MAJOR  2
-#define MBEDTLS_VERSION_MINOR  26
+#define MBEDTLS_VERSION_MINOR  27
 #define MBEDTLS_VERSION_PATCH  0
 
 /**
@@ -45,9 +45,9 @@
  *    MMNNPP00
  *    Major version | Minor version | Patch version
  */
-#define MBEDTLS_VERSION_NUMBER         0x021A0000
-#define MBEDTLS_VERSION_STRING         "2.26.0"
-#define MBEDTLS_VERSION_STRING_FULL    "mbed TLS 2.26.0"
+#define MBEDTLS_VERSION_NUMBER         0x021B0000
+#define MBEDTLS_VERSION_STRING         "2.27.0"
+#define MBEDTLS_VERSION_STRING_FULL    "mbed TLS 2.27.0"
 
 #if defined(MBEDTLS_VERSION_C)
 
diff --git a/library/CMakeLists.txt b/library/CMakeLists.txt
index 22a1727..a69e733 100644
--- a/library/CMakeLists.txt
+++ b/library/CMakeLists.txt
@@ -202,15 +202,15 @@ endif(USE_STATIC_MBEDTLS_LIBRARY)
 
 if(USE_SHARED_MBEDTLS_LIBRARY)
     add_library(${mbedcrypto_target} SHARED ${src_crypto})
-    set_target_properties(${mbedcrypto_target} PROPERTIES VERSION 2.26.0 SOVERSION 6)
+    set_target_properties(${mbedcrypto_target} PROPERTIES VERSION 2.27.0 SOVERSION 7)
     target_link_libraries(${mbedcrypto_target} PUBLIC ${libs})
 
     add_library(${mbedx509_target} SHARED ${src_x509})
-    set_target_properties(${mbedx509_target} PROPERTIES VERSION 2.26.0 SOVERSION 1)
+    set_target_properties(${mbedx509_target} PROPERTIES VERSION 2.27.0 SOVERSION 1)
     target_link_libraries(${mbedx509_target} PUBLIC ${libs} ${mbedcrypto_target})
 
     add_library(${mbedtls_target} SHARED ${src_tls})
-    set_target_properties(${mbedtls_target} PROPERTIES VERSION 2.26.0 SOVERSION 13)
+    set_target_properties(${mbedtls_target} PROPERTIES VERSION 2.27.0 SOVERSION 13)
     target_link_libraries(${mbedtls_target} PUBLIC ${libs} ${mbedx509_target})
 endif(USE_SHARED_MBEDTLS_LIBRARY)
 
diff --git a/library/Makefile b/library/Makefile
index dc101d2..6fdc927 100644
--- a/library/Makefile
+++ b/library/Makefile
@@ -41,7 +41,7 @@ endif
 
 SOEXT_TLS=so.13
 SOEXT_X509=so.1
-SOEXT_CRYPTO=so.6
+SOEXT_CRYPTO=so.7
 
 # Set AR_DASH= (empty string) to use an ar implementation that does not accept
 # the - prefix for command line options (e.g. llvm-ar)
diff --git a/library/bignum.c b/library/bignum.c
index 8e4d893..20afa22 100644
--- a/library/bignum.c
+++ b/library/bignum.c
@@ -268,6 +268,36 @@ void mbedtls_mpi_swap( mbedtls_mpi *X, mbedtls_mpi *Y )
     memcpy(  Y, &T, sizeof( mbedtls_mpi ) );
 }
 
+/**
+ * Select between two sign values in constant-time.
+ *
+ * This is functionally equivalent to second ? a : b but uses only bit
+ * operations in order to avoid branches.
+ *
+ * \param[in] a         The first sign; must be either +1 or -1.
+ * \param[in] b         The second sign; must be either +1 or -1.
+ * \param[in] second    Must be either 1 (return b) or 0 (return a).
+ *
+ * \return The selected sign value.
+ */
+static int mpi_safe_cond_select_sign( int a, int b, unsigned char second )
+{
+    /* In order to avoid questions about what we can reasonnably assume about
+     * the representations of signed integers, move everything to unsigned
+     * by taking advantage of the fact that a and b are either +1 or -1. */
+    unsigned ua = a + 1;
+    unsigned ub = b + 1;
+
+    /* second was 0 or 1, mask is 0 or 2 as are ua and ub */
+    const unsigned mask = second << 1;
+
+    /* select ua or ub */
+    unsigned ur = ( ua & ~mask ) | ( ub & mask );
+
+    /* ur is now 0 or 2, convert back to -1 or +1 */
+    return( (int) ur - 1 );
+}
+
 /*
  * Conditionally assign dest = src, without leaking information
  * about whether the assignment was made or not.
@@ -280,8 +310,23 @@ static void mpi_safe_cond_assign( size_t n,
                                   unsigned char assign )
 {
     size_t i;
+
+    /* MSVC has a warning about unary minus on unsigned integer types,
+     * but this is well-defined and precisely what we want to do here. */
+#if defined(_MSC_VER)
+#pragma warning( push )
+#pragma warning( disable : 4146 )
+#endif
+
+    /* all-bits 1 if assign is 1, all-bits 0 if assign is 0 */
+    const mbedtls_mpi_uint mask = -assign;
+
+#if defined(_MSC_VER)
+#pragma warning( pop )
+#endif
+
     for( i = 0; i < n; i++ )
-        dest[i] = dest[i] * ( 1 - assign ) + src[i] * assign;
+        dest[i] = ( src[i] & mask ) | ( dest[i] & ~mask );
 }
 
 /*
@@ -293,20 +338,34 @@ int mbedtls_mpi_safe_cond_assign( mbedtls_mpi *X, const mbedtls_mpi *Y, unsigned
 {
     int ret = 0;
     size_t i;
+    mbedtls_mpi_uint limb_mask;
     MPI_VALIDATE_RET( X != NULL );
     MPI_VALIDATE_RET( Y != NULL );
 
+    /* MSVC has a warning about unary minus on unsigned integer types,
+     * but this is well-defined and precisely what we want to do here. */
+#if defined(_MSC_VER)
+#pragma warning( push )
+#pragma warning( disable : 4146 )
+#endif
+
     /* make sure assign is 0 or 1 in a time-constant manner */
-    assign = (assign | (unsigned char)-assign) >> 7;
+    assign = (assign | (unsigned char)-assign) >> (sizeof( assign ) * 8 - 1);
+    /* all-bits 1 if assign is 1, all-bits 0 if assign is 0 */
+    limb_mask = -assign;
+
+#if defined(_MSC_VER)
+#pragma warning( pop )
+#endif
 
     MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, Y->n ) );
 
-    X->s = X->s * ( 1 - assign ) + Y->s * assign;
+    X->s = mpi_safe_cond_select_sign( X->s, Y->s, assign );
 
     mpi_safe_cond_assign( Y->n, X->p, Y->p, assign );
 
     for( i = Y->n; i < X->n; i++ )
-        X->p[i] *= ( 1 - assign );
+        X->p[i] &= ~limb_mask;
 
 cleanup:
     return( ret );
@@ -322,6 +381,7 @@ int mbedtls_mpi_safe_cond_swap( mbedtls_mpi *X, mbedtls_mpi *Y, unsigned char sw
 {
     int ret, s;
     size_t i;
+    mbedtls_mpi_uint limb_mask;
     mbedtls_mpi_uint tmp;
     MPI_VALIDATE_RET( X != NULL );
     MPI_VALIDATE_RET( Y != NULL );
@@ -329,22 +389,35 @@ int mbedtls_mpi_safe_cond_swap( mbedtls_mpi *X, mbedtls_mpi *Y, unsigned char sw
     if( X == Y )
         return( 0 );
 
+    /* MSVC has a warning about unary minus on unsigned integer types,
+     * but this is well-defined and precisely what we want to do here. */
+#if defined(_MSC_VER)
+#pragma warning( push )
+#pragma warning( disable : 4146 )
+#endif
+
     /* make sure swap is 0 or 1 in a time-constant manner */
-    swap = (swap | (unsigned char)-swap) >> 7;
+    swap = (swap | (unsigned char)-swap) >> (sizeof( swap ) * 8 - 1);
+    /* all-bits 1 if swap is 1, all-bits 0 if swap is 0 */
+    limb_mask = -swap;
+
+#if defined(_MSC_VER)
+#pragma warning( pop )
+#endif
 
     MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, Y->n ) );
     MBEDTLS_MPI_CHK( mbedtls_mpi_grow( Y, X->n ) );
 
     s = X->s;
-    X->s = X->s * ( 1 - swap ) + Y->s * swap;
-    Y->s = Y->s * ( 1 - swap ) +    s * swap;
+    X->s = mpi_safe_cond_select_sign( X->s, Y->s, swap );
+    Y->s = mpi_safe_cond_select_sign( Y->s, s, swap );
 
 
     for( i = 0; i < X->n; i++ )
     {
         tmp = X->p[i];
-        X->p[i] = X->p[i] * ( 1 - swap ) + Y->p[i] * swap;
-        Y->p[i] = Y->p[i] * ( 1 - swap ) +     tmp * swap;
+        X->p[i] = ( X->p[i] & ~limb_mask ) | ( Y->p[i] & limb_mask );
+        Y->p[i] = ( Y->p[i] & ~limb_mask ) | (     tmp & limb_mask );
     }
 
 cleanup:
@@ -2155,6 +2228,71 @@ static void mpi_montred( mbedtls_mpi *A, const mbedtls_mpi *N,
 }
 
 /*
+ * Constant-flow boolean "equal" comparison:
+ * return x == y
+ *
+ * This function can be used to write constant-time code by replacing branches
+ * with bit operations - it can be used in conjunction with
+ * mbedtls_ssl_cf_mask_from_bit().
+ *
+ * This function is implemented without using comparison operators, as those
+ * might be translated to branches by some compilers on some platforms.
+ */
+static size_t mbedtls_mpi_cf_bool_eq( size_t x, size_t y )
+{
+    /* diff = 0 if x == y, non-zero otherwise */
+    const size_t diff = x ^ y;
+
+    /* MSVC has a warning about unary minus on unsigned integer types,
+     * but this is well-defined and precisely what we want to do here. */
+#if defined(_MSC_VER)
+#pragma warning( push )
+#pragma warning( disable : 4146 )
+#endif
+
+    /* diff_msb's most significant bit is equal to x != y */
+    const size_t diff_msb = ( diff | (size_t) -diff );
+
+#if defined(_MSC_VER)
+#pragma warning( pop )
+#endif
+
+    /* diff1 = (x != y) ? 1 : 0 */
+    const size_t diff1 = diff_msb >> ( sizeof( diff_msb ) * 8 - 1 );
+
+    return( 1 ^ diff1 );
+}
+
+/**
+ * Select an MPI from a table without leaking the index.
+ *
+ * This is functionally equivalent to mbedtls_mpi_copy(R, T[idx]) except it
+ * reads the entire table in order to avoid leaking the value of idx to an
+ * attacker able to observe memory access patterns.
+ *
+ * \param[out] R        Where to write the selected MPI.
+ * \param[in] T         The table to read from.
+ * \param[in] T_size    The number of elements in the table.
+ * \param[in] idx       The index of the element to select;
+ *                      this must satisfy 0 <= idx < T_size.
+ *
+ * \return \c 0 on success, or a negative error code.
+ */
+static int mpi_select( mbedtls_mpi *R, const mbedtls_mpi *T, size_t T_size, size_t idx )
+{
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+
+    for( size_t i = 0; i < T_size; i++ )
+    {
+        MBEDTLS_MPI_CHK( mbedtls_mpi_safe_cond_assign( R, &T[i],
+                        (unsigned char) mbedtls_mpi_cf_bool_eq( i, idx ) ) );
+    }
+
+cleanup:
+    return( ret );
+}
+
+/*
  * Sliding-window exponentiation: X = A^E mod N  (HAC 14.85)
  */
 int mbedtls_mpi_exp_mod( mbedtls_mpi *X, const mbedtls_mpi *A,
@@ -2166,7 +2304,7 @@ int mbedtls_mpi_exp_mod( mbedtls_mpi *X, const mbedtls_mpi *A,
     size_t i, j, nblimbs;
     size_t bufsize, nbits;
     mbedtls_mpi_uint ei, mm, state;
-    mbedtls_mpi RR, T, W[ 1 << MBEDTLS_MPI_WINDOW_SIZE ], Apos;
+    mbedtls_mpi RR, T, W[ 1 << MBEDTLS_MPI_WINDOW_SIZE ], WW, Apos;
     int neg;
 
     MPI_VALIDATE_RET( X != NULL );
@@ -2190,6 +2328,7 @@ int mbedtls_mpi_exp_mod( mbedtls_mpi *X, const mbedtls_mpi *A,
     mpi_montg_init( &mm, N );
     mbedtls_mpi_init( &RR ); mbedtls_mpi_init( &T );
     mbedtls_mpi_init( &Apos );
+    mbedtls_mpi_init( &WW );
     memset( W, 0, sizeof( W ) );
 
     i = mbedtls_mpi_bitlen( E );
@@ -2343,7 +2482,8 @@ int mbedtls_mpi_exp_mod( mbedtls_mpi *X, const mbedtls_mpi *A,
             /*
              * X = X * W[wbits] R^-1 mod N
              */
-            mpi_montmul( X, &W[wbits], N, mm, &T );
+            MBEDTLS_MPI_CHK( mpi_select( &WW, W, (size_t) 1 << wsize, wbits ) );
+            mpi_montmul( X, &WW, N, mm, &T );
 
             state--;
             nbits = 0;
@@ -2381,6 +2521,7 @@ cleanup:
         mbedtls_mpi_free( &W[i] );
 
     mbedtls_mpi_free( &W[1] ); mbedtls_mpi_free( &T ); mbedtls_mpi_free( &Apos );
+    mbedtls_mpi_free( &WW );
 
     if( _RR == NULL || _RR->p == NULL )
         mbedtls_mpi_free( &RR );
@@ -2565,9 +2706,10 @@ int mbedtls_mpi_random( mbedtls_mpi *X,
 {
     int ret = MBEDTLS_ERR_MPI_BAD_INPUT_DATA;
     int count;
-    unsigned cmp = 0;
+    unsigned lt_lower = 1, lt_upper = 0;
     size_t n_bits = mbedtls_mpi_bitlen( N );
     size_t n_bytes = ( n_bits + 7 ) / 8;
+    mbedtls_mpi lower_bound;
 
     if( min < 0 )
         return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA );
@@ -2593,10 +2735,14 @@ int mbedtls_mpi_random( mbedtls_mpi *X,
      */
     count = ( n_bytes > 4 ? 30 : 250 );
 
+    mbedtls_mpi_init( &lower_bound );
+
     /* Ensure that target MPI has exactly the same number of limbs
      * as the upper bound, even if the upper bound has leading zeros.
      * This is necessary for the mbedtls_mpi_lt_mpi_ct() check. */
     MBEDTLS_MPI_CHK( mbedtls_mpi_resize_clear( X, N->n ) );
+    MBEDTLS_MPI_CHK( mbedtls_mpi_grow( &lower_bound, N->n ) );
+    MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &lower_bound, min ) );
 
     /*
      * Match the procedure given in RFC 6979 §3.3 (deterministic ECDSA)
@@ -2617,11 +2763,13 @@ int mbedtls_mpi_random( mbedtls_mpi *X,
             goto cleanup;
         }
 
-        MBEDTLS_MPI_CHK( mbedtls_mpi_lt_mpi_ct( X, N, &cmp ) );
+        MBEDTLS_MPI_CHK( mbedtls_mpi_lt_mpi_ct( X, &lower_bound, &lt_lower ) );
+        MBEDTLS_MPI_CHK( mbedtls_mpi_lt_mpi_ct( X, N, &lt_upper ) );
     }
-    while( mbedtls_mpi_cmp_int( X, min ) < 0 || cmp != 1 );
+    while( lt_lower != 0 || lt_upper == 0 );
 
 cleanup:
+    mbedtls_mpi_free( &lower_bound );
     return( ret );
 }
 
diff --git a/library/ecp.c b/library/ecp.c
index f748704..ca49f99 100644
--- a/library/ecp.c
+++ b/library/ecp.c
@@ -76,6 +76,7 @@
 #include "mbedtls/threading.h"
 #include "mbedtls/platform_util.h"
 #include "mbedtls/error.h"
+#include "mbedtls/bn_mul.h"
 
 #include "ecp_invasive.h"
 
@@ -2935,6 +2936,97 @@ int mbedtls_ecp_muladd( mbedtls_ecp_group *grp, mbedtls_ecp_point *R,
 #endif /* MBEDTLS_ECP_SHORT_WEIERSTRASS_ENABLED */
 
 #if defined(MBEDTLS_ECP_MONTGOMERY_ENABLED)
+#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED)
+#define ECP_MPI_INIT(s, n, p) {s, (n), (mbedtls_mpi_uint *)(p)}
+#define ECP_MPI_INIT_ARRAY(x)   \
+    ECP_MPI_INIT(1, sizeof(x) / sizeof(mbedtls_mpi_uint), x)
+/*
+ * Constants for the two points other than 0, 1, -1 (mod p) in
+ * https://cr.yp.to/ecdh.html#validate
+ * See ecp_check_pubkey_x25519().
+ */
+static const mbedtls_mpi_uint x25519_bad_point_1[] = {
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xe0, 0xeb, 0x7a, 0x7c, 0x3b, 0x41, 0xb8, 0xae ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x16, 0x56, 0xe3, 0xfa, 0xf1, 0x9f, 0xc4, 0x6a ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xda, 0x09, 0x8d, 0xeb, 0x9c, 0x32, 0xb1, 0xfd ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x86, 0x62, 0x05, 0x16, 0x5f, 0x49, 0xb8, 0x00 ),
+};
+static const mbedtls_mpi_uint x25519_bad_point_2[] = {
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x5f, 0x9c, 0x95, 0xbc, 0xa3, 0x50, 0x8c, 0x24 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xb1, 0xd0, 0xb1, 0x55, 0x9c, 0x83, 0xef, 0x5b ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x04, 0x44, 0x5c, 0xc4, 0x58, 0x1c, 0x8e, 0x86 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xd8, 0x22, 0x4e, 0xdd, 0xd0, 0x9f, 0x11, 0x57 ),
+};
+static const mbedtls_mpi ecp_x25519_bad_point_1 = ECP_MPI_INIT_ARRAY(
+        x25519_bad_point_1 );
+static const mbedtls_mpi ecp_x25519_bad_point_2 = ECP_MPI_INIT_ARRAY(
+        x25519_bad_point_2 );
+#endif /* MBEDTLS_ECP_DP_CURVE25519_ENABLED */
+
+/*
+ * Check that the input point is not one of the low-order points.
+ * This is recommended by the "May the Fourth" paper:
+ * https://eprint.iacr.org/2017/806.pdf
+ * Those points are never sent by an honest peer.
+ */
+static int ecp_check_bad_points_mx( const mbedtls_mpi *X, const mbedtls_mpi *P,
+                                    const mbedtls_ecp_group_id grp_id )
+{
+    int ret;
+    mbedtls_mpi XmP;
+
+    mbedtls_mpi_init( &XmP );
+
+    /* Reduce X mod P so that we only need to check values less than P.
+     * We know X < 2^256 so we can proceed by subtraction. */
+    MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &XmP, X ) );
+    while( mbedtls_mpi_cmp_mpi( &XmP, P ) >= 0 )
+        MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &XmP, &XmP, P ) );
+
+    /* Check against the known bad values that are less than P. For Curve448
+     * these are 0, 1 and -1. For Curve25519 we check the values less than P
+     * from the following list: https://cr.yp.to/ecdh.html#validate */
+    if( mbedtls_mpi_cmp_int( &XmP, 1 ) <= 0 ) /* takes care of 0 and 1 */
+    {
+        ret = MBEDTLS_ERR_ECP_INVALID_KEY;
+        goto cleanup;
+    }
+
+#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED)
+    if( grp_id == MBEDTLS_ECP_DP_CURVE25519 )
+    {
+        if( mbedtls_mpi_cmp_mpi( &XmP, &ecp_x25519_bad_point_1 ) == 0 )
+        {
+            ret = MBEDTLS_ERR_ECP_INVALID_KEY;
+            goto cleanup;
+        }
+
+        if( mbedtls_mpi_cmp_mpi( &XmP, &ecp_x25519_bad_point_2 ) == 0 )
+        {
+            ret = MBEDTLS_ERR_ECP_INVALID_KEY;
+            goto cleanup;
+        }
+    }
+#else
+    (void) grp_id;
+#endif
+
+    /* Final check: check if XmP + 1 is P (final because it changes XmP!) */
+    MBEDTLS_MPI_CHK( mbedtls_mpi_add_int( &XmP, &XmP, 1 ) );
+    if( mbedtls_mpi_cmp_mpi( &XmP, P ) == 0 )
+    {
+        ret = MBEDTLS_ERR_ECP_INVALID_KEY;
+        goto cleanup;
+    }
+
+    ret = 0;
+
+cleanup:
+    mbedtls_mpi_free( &XmP );
+
+    return( ret );
+}
+
 /*
  * Check validity of a public key for Montgomery curves with x-only schemes
  */
@@ -2946,7 +3038,13 @@ static int ecp_check_pubkey_mx( const mbedtls_ecp_group *grp, const mbedtls_ecp_
     if( mbedtls_mpi_size( &pt->X ) > ( grp->nbits + 7 ) / 8 )
         return( MBEDTLS_ERR_ECP_INVALID_KEY );
 
-    return( 0 );
+    /* Implicit in all standards (as they don't consider negative numbers):
+     * X must be non-negative. This is normally ensured by the way it's
+     * encoded for transmission, but let's be extra sure. */
+    if( mbedtls_mpi_cmp_int( &pt->X, 0 ) < 0 )
+        return( MBEDTLS_ERR_ECP_INVALID_KEY );
+
+    return( ecp_check_bad_points_mx( &pt->X, &grp->P, grp->id ) );
 }
 #endif /* MBEDTLS_ECP_MONTGOMERY_ENABLED */
 
diff --git a/library/ecp_curves.c b/library/ecp_curves.c
index 165c315..ff26a18 100644
--- a/library/ecp_curves.c
+++ b/library/ecp_curves.c
@@ -24,6 +24,7 @@
 #include "mbedtls/ecp.h"
 #include "mbedtls/platform_util.h"
 #include "mbedtls/error.h"
+#include "mbedtls/bn_mul.h"
 
 #include "ecp_invasive.h"
 
@@ -42,44 +43,10 @@
 #define inline __inline
 #endif
 
-/*
- * Conversion macros for embedded constants:
- * build lists of mbedtls_mpi_uint's from lists of unsigned char's grouped by 8, 4 or 2
- */
-#if defined(MBEDTLS_HAVE_INT32)
-
-#define BYTES_TO_T_UINT_4( a, b, c, d )                       \
-    ( (mbedtls_mpi_uint) (a) <<  0 ) |                        \
-    ( (mbedtls_mpi_uint) (b) <<  8 ) |                        \
-    ( (mbedtls_mpi_uint) (c) << 16 ) |                        \
-    ( (mbedtls_mpi_uint) (d) << 24 )
-
-#define BYTES_TO_T_UINT_2( a, b )                   \
-    BYTES_TO_T_UINT_4( a, b, 0, 0 )
-
-#define BYTES_TO_T_UINT_8( a, b, c, d, e, f, g, h ) \
-    BYTES_TO_T_UINT_4( a, b, c, d ),                \
-    BYTES_TO_T_UINT_4( e, f, g, h )
-
-#else /* 64-bits */
-
-#define BYTES_TO_T_UINT_8( a, b, c, d, e, f, g, h ) \
-    ( (mbedtls_mpi_uint) (a) <<  0 ) |                        \
-    ( (mbedtls_mpi_uint) (b) <<  8 ) |                        \
-    ( (mbedtls_mpi_uint) (c) << 16 ) |                        \
-    ( (mbedtls_mpi_uint) (d) << 24 ) |                        \
-    ( (mbedtls_mpi_uint) (e) << 32 ) |                        \
-    ( (mbedtls_mpi_uint) (f) << 40 ) |                        \
-    ( (mbedtls_mpi_uint) (g) << 48 ) |                        \
-    ( (mbedtls_mpi_uint) (h) << 56 )
+#define ECP_MPI_INIT(s, n, p) {s, (n), (mbedtls_mpi_uint *)(p)}
 
-#define BYTES_TO_T_UINT_4( a, b, c, d )             \
-    BYTES_TO_T_UINT_8( a, b, c, d, 0, 0, 0, 0 )
-
-#define BYTES_TO_T_UINT_2( a, b )                   \
-    BYTES_TO_T_UINT_8( a, b, 0, 0, 0, 0, 0, 0 )
-
-#endif /* bits in mbedtls_mpi_uint */
+#define ECP_MPI_INIT_ARRAY(x)   \
+    ECP_MPI_INIT(1, sizeof(x) / sizeof(mbedtls_mpi_uint), x)
 
 /*
  * Note: the constants are in little-endian order
@@ -91,29 +58,29 @@
  */
 #if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED)
 static const mbedtls_mpi_uint secp192r1_p[] = {
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
 };
 static const mbedtls_mpi_uint secp192r1_b[] = {
-    BYTES_TO_T_UINT_8( 0xB1, 0xB9, 0x46, 0xC1, 0xEC, 0xDE, 0xB8, 0xFE ),
-    BYTES_TO_T_UINT_8( 0x49, 0x30, 0x24, 0x72, 0xAB, 0xE9, 0xA7, 0x0F ),
-    BYTES_TO_T_UINT_8( 0xE7, 0x80, 0x9C, 0xE5, 0x19, 0x05, 0x21, 0x64 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xB1, 0xB9, 0x46, 0xC1, 0xEC, 0xDE, 0xB8, 0xFE ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x49, 0x30, 0x24, 0x72, 0xAB, 0xE9, 0xA7, 0x0F ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xE7, 0x80, 0x9C, 0xE5, 0x19, 0x05, 0x21, 0x64 ),
 };
 static const mbedtls_mpi_uint secp192r1_gx[] = {
-    BYTES_TO_T_UINT_8( 0x12, 0x10, 0xFF, 0x82, 0xFD, 0x0A, 0xFF, 0xF4 ),
-    BYTES_TO_T_UINT_8( 0x00, 0x88, 0xA1, 0x43, 0xEB, 0x20, 0xBF, 0x7C ),
-    BYTES_TO_T_UINT_8( 0xF6, 0x90, 0x30, 0xB0, 0x0E, 0xA8, 0x8D, 0x18 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x12, 0x10, 0xFF, 0x82, 0xFD, 0x0A, 0xFF, 0xF4 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x00, 0x88, 0xA1, 0x43, 0xEB, 0x20, 0xBF, 0x7C ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xF6, 0x90, 0x30, 0xB0, 0x0E, 0xA8, 0x8D, 0x18 ),
 };
 static const mbedtls_mpi_uint secp192r1_gy[] = {
-    BYTES_TO_T_UINT_8( 0x11, 0x48, 0x79, 0x1E, 0xA1, 0x77, 0xF9, 0x73 ),
-    BYTES_TO_T_UINT_8( 0xD5, 0xCD, 0x24, 0x6B, 0xED, 0x11, 0x10, 0x63 ),
-    BYTES_TO_T_UINT_8( 0x78, 0xDA, 0xC8, 0xFF, 0x95, 0x2B, 0x19, 0x07 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x11, 0x48, 0x79, 0x1E, 0xA1, 0x77, 0xF9, 0x73 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xD5, 0xCD, 0x24, 0x6B, 0xED, 0x11, 0x10, 0x63 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x78, 0xDA, 0xC8, 0xFF, 0x95, 0x2B, 0x19, 0x07 ),
 };
 static const mbedtls_mpi_uint secp192r1_n[] = {
-    BYTES_TO_T_UINT_8( 0x31, 0x28, 0xD2, 0xB4, 0xB1, 0xC9, 0x6B, 0x14 ),
-    BYTES_TO_T_UINT_8( 0x36, 0xF8, 0xDE, 0x99, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x31, 0x28, 0xD2, 0xB4, 0xB1, 0xC9, 0x6B, 0x14 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x36, 0xF8, 0xDE, 0x99, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
 };
 #endif /* MBEDTLS_ECP_DP_SECP192R1_ENABLED */
 
@@ -122,34 +89,34 @@ static const mbedtls_mpi_uint secp192r1_n[] = {
  */
 #if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED)
 static const mbedtls_mpi_uint secp224r1_p[] = {
-    BYTES_TO_T_UINT_8( 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ),
-    BYTES_TO_T_UINT_8( 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00 ),
 };
 static const mbedtls_mpi_uint secp224r1_b[] = {
-    BYTES_TO_T_UINT_8( 0xB4, 0xFF, 0x55, 0x23, 0x43, 0x39, 0x0B, 0x27 ),
-    BYTES_TO_T_UINT_8( 0xBA, 0xD8, 0xBF, 0xD7, 0xB7, 0xB0, 0x44, 0x50 ),
-    BYTES_TO_T_UINT_8( 0x56, 0x32, 0x41, 0xF5, 0xAB, 0xB3, 0x04, 0x0C ),
-    BYTES_TO_T_UINT_4( 0x85, 0x0A, 0x05, 0xB4 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xB4, 0xFF, 0x55, 0x23, 0x43, 0x39, 0x0B, 0x27 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xBA, 0xD8, 0xBF, 0xD7, 0xB7, 0xB0, 0x44, 0x50 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x56, 0x32, 0x41, 0xF5, 0xAB, 0xB3, 0x04, 0x0C ),
+    MBEDTLS_BYTES_TO_T_UINT_4( 0x85, 0x0A, 0x05, 0xB4 ),
 };
 static const mbedtls_mpi_uint secp224r1_gx[] = {
-    BYTES_TO_T_UINT_8( 0x21, 0x1D, 0x5C, 0x11, 0xD6, 0x80, 0x32, 0x34 ),
-    BYTES_TO_T_UINT_8( 0x22, 0x11, 0xC2, 0x56, 0xD3, 0xC1, 0x03, 0x4A ),
-    BYTES_TO_T_UINT_8( 0xB9, 0x90, 0x13, 0x32, 0x7F, 0xBF, 0xB4, 0x6B ),
-    BYTES_TO_T_UINT_4( 0xBD, 0x0C, 0x0E, 0xB7 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x21, 0x1D, 0x5C, 0x11, 0xD6, 0x80, 0x32, 0x34 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x22, 0x11, 0xC2, 0x56, 0xD3, 0xC1, 0x03, 0x4A ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xB9, 0x90, 0x13, 0x32, 0x7F, 0xBF, 0xB4, 0x6B ),
+    MBEDTLS_BYTES_TO_T_UINT_4( 0xBD, 0x0C, 0x0E, 0xB7 ),
 };
 static const mbedtls_mpi_uint secp224r1_gy[] = {
-    BYTES_TO_T_UINT_8( 0x34, 0x7E, 0x00, 0x85, 0x99, 0x81, 0xD5, 0x44 ),
-    BYTES_TO_T_UINT_8( 0x64, 0x47, 0x07, 0x5A, 0xA0, 0x75, 0x43, 0xCD ),
-    BYTES_TO_T_UINT_8( 0xE6, 0xDF, 0x22, 0x4C, 0xFB, 0x23, 0xF7, 0xB5 ),
-    BYTES_TO_T_UINT_4( 0x88, 0x63, 0x37, 0xBD ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x34, 0x7E, 0x00, 0x85, 0x99, 0x81, 0xD5, 0x44 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x64, 0x47, 0x07, 0x5A, 0xA0, 0x75, 0x43, 0xCD ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xE6, 0xDF, 0x22, 0x4C, 0xFB, 0x23, 0xF7, 0xB5 ),
+    MBEDTLS_BYTES_TO_T_UINT_4( 0x88, 0x63, 0x37, 0xBD ),
 };
 static const mbedtls_mpi_uint secp224r1_n[] = {
-    BYTES_TO_T_UINT_8( 0x3D, 0x2A, 0x5C, 0x5C, 0x45, 0x29, 0xDD, 0x13 ),
-    BYTES_TO_T_UINT_8( 0x3E, 0xF0, 0xB8, 0xE0, 0xA2, 0x16, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_4( 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x3D, 0x2A, 0x5C, 0x5C, 0x45, 0x29, 0xDD, 0x13 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x3E, 0xF0, 0xB8, 0xE0, 0xA2, 0x16, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_4( 0xFF, 0xFF, 0xFF, 0xFF ),
 };
 #endif /* MBEDTLS_ECP_DP_SECP224R1_ENABLED */
 
@@ -158,34 +125,34 @@ static const mbedtls_mpi_uint secp224r1_n[] = {
  */
 #if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED)
 static const mbedtls_mpi_uint secp256r1_p[] = {
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00 ),
-    BYTES_TO_T_UINT_8( 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ),
-    BYTES_TO_T_UINT_8( 0x01, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x01, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF ),
 };
 static const mbedtls_mpi_uint secp256r1_b[] = {
-    BYTES_TO_T_UINT_8( 0x4B, 0x60, 0xD2, 0x27, 0x3E, 0x3C, 0xCE, 0x3B ),
-    BYTES_TO_T_UINT_8( 0xF6, 0xB0, 0x53, 0xCC, 0xB0, 0x06, 0x1D, 0x65 ),
-    BYTES_TO_T_UINT_8( 0xBC, 0x86, 0x98, 0x76, 0x55, 0xBD, 0xEB, 0xB3 ),
-    BYTES_TO_T_UINT_8( 0xE7, 0x93, 0x3A, 0xAA, 0xD8, 0x35, 0xC6, 0x5A ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x4B, 0x60, 0xD2, 0x27, 0x3E, 0x3C, 0xCE, 0x3B ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xF6, 0xB0, 0x53, 0xCC, 0xB0, 0x06, 0x1D, 0x65 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xBC, 0x86, 0x98, 0x76, 0x55, 0xBD, 0xEB, 0xB3 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xE7, 0x93, 0x3A, 0xAA, 0xD8, 0x35, 0xC6, 0x5A ),
 };
 static const mbedtls_mpi_uint secp256r1_gx[] = {
-    BYTES_TO_T_UINT_8( 0x96, 0xC2, 0x98, 0xD8, 0x45, 0x39, 0xA1, 0xF4 ),
-    BYTES_TO_T_UINT_8( 0xA0, 0x33, 0xEB, 0x2D, 0x81, 0x7D, 0x03, 0x77 ),
-    BYTES_TO_T_UINT_8( 0xF2, 0x40, 0xA4, 0x63, 0xE5, 0xE6, 0xBC, 0xF8 ),
-    BYTES_TO_T_UINT_8( 0x47, 0x42, 0x2C, 0xE1, 0xF2, 0xD1, 0x17, 0x6B ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x96, 0xC2, 0x98, 0xD8, 0x45, 0x39, 0xA1, 0xF4 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xA0, 0x33, 0xEB, 0x2D, 0x81, 0x7D, 0x03, 0x77 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xF2, 0x40, 0xA4, 0x63, 0xE5, 0xE6, 0xBC, 0xF8 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x47, 0x42, 0x2C, 0xE1, 0xF2, 0xD1, 0x17, 0x6B ),
 };
 static const mbedtls_mpi_uint secp256r1_gy[] = {
-    BYTES_TO_T_UINT_8( 0xF5, 0x51, 0xBF, 0x37, 0x68, 0x40, 0xB6, 0xCB ),
-    BYTES_TO_T_UINT_8( 0xCE, 0x5E, 0x31, 0x6B, 0x57, 0x33, 0xCE, 0x2B ),
-    BYTES_TO_T_UINT_8( 0x16, 0x9E, 0x0F, 0x7C, 0x4A, 0xEB, 0xE7, 0x8E ),
-    BYTES_TO_T_UINT_8( 0x9B, 0x7F, 0x1A, 0xFE, 0xE2, 0x42, 0xE3, 0x4F ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xF5, 0x51, 0xBF, 0x37, 0x68, 0x40, 0xB6, 0xCB ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xCE, 0x5E, 0x31, 0x6B, 0x57, 0x33, 0xCE, 0x2B ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x16, 0x9E, 0x0F, 0x7C, 0x4A, 0xEB, 0xE7, 0x8E ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x9B, 0x7F, 0x1A, 0xFE, 0xE2, 0x42, 0xE3, 0x4F ),
 };
 static const mbedtls_mpi_uint secp256r1_n[] = {
-    BYTES_TO_T_UINT_8( 0x51, 0x25, 0x63, 0xFC, 0xC2, 0xCA, 0xB9, 0xF3 ),
-    BYTES_TO_T_UINT_8( 0x84, 0x9E, 0x17, 0xA7, 0xAD, 0xFA, 0xE6, 0xBC ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x51, 0x25, 0x63, 0xFC, 0xC2, 0xCA, 0xB9, 0xF3 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x84, 0x9E, 0x17, 0xA7, 0xAD, 0xFA, 0xE6, 0xBC ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF ),
 };
 #endif /* MBEDTLS_ECP_DP_SECP256R1_ENABLED */
 
@@ -194,44 +161,44 @@ static const mbedtls_mpi_uint secp256r1_n[] = {
  */
 #if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
 static const mbedtls_mpi_uint secp384r1_p[] = {
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00 ),
-    BYTES_TO_T_UINT_8( 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
 };
 static const mbedtls_mpi_uint secp384r1_b[] = {
-    BYTES_TO_T_UINT_8( 0xEF, 0x2A, 0xEC, 0xD3, 0xED, 0xC8, 0x85, 0x2A ),
-    BYTES_TO_T_UINT_8( 0x9D, 0xD1, 0x2E, 0x8A, 0x8D, 0x39, 0x56, 0xC6 ),
-    BYTES_TO_T_UINT_8( 0x5A, 0x87, 0x13, 0x50, 0x8F, 0x08, 0x14, 0x03 ),
-    BYTES_TO_T_UINT_8( 0x12, 0x41, 0x81, 0xFE, 0x6E, 0x9C, 0x1D, 0x18 ),
-    BYTES_TO_T_UINT_8( 0x19, 0x2D, 0xF8, 0xE3, 0x6B, 0x05, 0x8E, 0x98 ),
-    BYTES_TO_T_UINT_8( 0xE4, 0xE7, 0x3E, 0xE2, 0xA7, 0x2F, 0x31, 0xB3 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xEF, 0x2A, 0xEC, 0xD3, 0xED, 0xC8, 0x85, 0x2A ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x9D, 0xD1, 0x2E, 0x8A, 0x8D, 0x39, 0x56, 0xC6 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x5A, 0x87, 0x13, 0x50, 0x8F, 0x08, 0x14, 0x03 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x12, 0x41, 0x81, 0xFE, 0x6E, 0x9C, 0x1D, 0x18 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x19, 0x2D, 0xF8, 0xE3, 0x6B, 0x05, 0x8E, 0x98 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xE4, 0xE7, 0x3E, 0xE2, 0xA7, 0x2F, 0x31, 0xB3 ),
 };
 static const mbedtls_mpi_uint secp384r1_gx[] = {
-    BYTES_TO_T_UINT_8( 0xB7, 0x0A, 0x76, 0x72, 0x38, 0x5E, 0x54, 0x3A ),
-    BYTES_TO_T_UINT_8( 0x6C, 0x29, 0x55, 0xBF, 0x5D, 0xF2, 0x02, 0x55 ),
-    BYTES_TO_T_UINT_8( 0x38, 0x2A, 0x54, 0x82, 0xE0, 0x41, 0xF7, 0x59 ),
-    BYTES_TO_T_UINT_8( 0x98, 0x9B, 0xA7, 0x8B, 0x62, 0x3B, 0x1D, 0x6E ),
-    BYTES_TO_T_UINT_8( 0x74, 0xAD, 0x20, 0xF3, 0x1E, 0xC7, 0xB1, 0x8E ),
-    BYTES_TO_T_UINT_8( 0x37, 0x05, 0x8B, 0xBE, 0x22, 0xCA, 0x87, 0xAA ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xB7, 0x0A, 0x76, 0x72, 0x38, 0x5E, 0x54, 0x3A ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x6C, 0x29, 0x55, 0xBF, 0x5D, 0xF2, 0x02, 0x55 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x38, 0x2A, 0x54, 0x82, 0xE0, 0x41, 0xF7, 0x59 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x98, 0x9B, 0xA7, 0x8B, 0x62, 0x3B, 0x1D, 0x6E ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x74, 0xAD, 0x20, 0xF3, 0x1E, 0xC7, 0xB1, 0x8E ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x37, 0x05, 0x8B, 0xBE, 0x22, 0xCA, 0x87, 0xAA ),
 };
 static const mbedtls_mpi_uint secp384r1_gy[] = {
-    BYTES_TO_T_UINT_8( 0x5F, 0x0E, 0xEA, 0x90, 0x7C, 0x1D, 0x43, 0x7A ),
-    BYTES_TO_T_UINT_8( 0x9D, 0x81, 0x7E, 0x1D, 0xCE, 0xB1, 0x60, 0x0A ),
-    BYTES_TO_T_UINT_8( 0xC0, 0xB8, 0xF0, 0xB5, 0x13, 0x31, 0xDA, 0xE9 ),
-    BYTES_TO_T_UINT_8( 0x7C, 0x14, 0x9A, 0x28, 0xBD, 0x1D, 0xF4, 0xF8 ),
-    BYTES_TO_T_UINT_8( 0x29, 0xDC, 0x92, 0x92, 0xBF, 0x98, 0x9E, 0x5D ),
-    BYTES_TO_T_UINT_8( 0x6F, 0x2C, 0x26, 0x96, 0x4A, 0xDE, 0x17, 0x36 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x5F, 0x0E, 0xEA, 0x90, 0x7C, 0x1D, 0x43, 0x7A ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x9D, 0x81, 0x7E, 0x1D, 0xCE, 0xB1, 0x60, 0x0A ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xC0, 0xB8, 0xF0, 0xB5, 0x13, 0x31, 0xDA, 0xE9 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x7C, 0x14, 0x9A, 0x28, 0xBD, 0x1D, 0xF4, 0xF8 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x29, 0xDC, 0x92, 0x92, 0xBF, 0x98, 0x9E, 0x5D ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x6F, 0x2C, 0x26, 0x96, 0x4A, 0xDE, 0x17, 0x36 ),
 };
 static const mbedtls_mpi_uint secp384r1_n[] = {
-    BYTES_TO_T_UINT_8( 0x73, 0x29, 0xC5, 0xCC, 0x6A, 0x19, 0xEC, 0xEC ),
-    BYTES_TO_T_UINT_8( 0x7A, 0xA7, 0xB0, 0x48, 0xB2, 0x0D, 0x1A, 0x58 ),
-    BYTES_TO_T_UINT_8( 0xDF, 0x2D, 0x37, 0xF4, 0x81, 0x4D, 0x63, 0xC7 ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x73, 0x29, 0xC5, 0xCC, 0x6A, 0x19, 0xEC, 0xEC ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x7A, 0xA7, 0xB0, 0x48, 0xB2, 0x0D, 0x1A, 0x58 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xDF, 0x2D, 0x37, 0xF4, 0x81, 0x4D, 0x63, 0xC7 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
 };
 #endif /* MBEDTLS_ECP_DP_SECP384R1_ENABLED */
 
@@ -240,154 +207,154 @@ static const mbedtls_mpi_uint secp384r1_n[] = {
  */
 #if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED)
 static const mbedtls_mpi_uint secp521r1_p[] = {
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_2( 0xFF, 0x01 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_2( 0xFF, 0x01 ),
 };
 static const mbedtls_mpi_uint secp521r1_b[] = {
-    BYTES_TO_T_UINT_8( 0x00, 0x3F, 0x50, 0x6B, 0xD4, 0x1F, 0x45, 0xEF ),
-    BYTES_TO_T_UINT_8( 0xF1, 0x34, 0x2C, 0x3D, 0x88, 0xDF, 0x73, 0x35 ),
-    BYTES_TO_T_UINT_8( 0x07, 0xBF, 0xB1, 0x3B, 0xBD, 0xC0, 0x52, 0x16 ),
-    BYTES_TO_T_UINT_8( 0x7B, 0x93, 0x7E, 0xEC, 0x51, 0x39, 0x19, 0x56 ),
-    BYTES_TO_T_UINT_8( 0xE1, 0x09, 0xF1, 0x8E, 0x91, 0x89, 0xB4, 0xB8 ),
-    BYTES_TO_T_UINT_8( 0xF3, 0x15, 0xB3, 0x99, 0x5B, 0x72, 0xDA, 0xA2 ),
-    BYTES_TO_T_UINT_8( 0xEE, 0x40, 0x85, 0xB6, 0xA0, 0x21, 0x9A, 0x92 ),
-    BYTES_TO_T_UINT_8( 0x1F, 0x9A, 0x1C, 0x8E, 0x61, 0xB9, 0x3E, 0x95 ),
-    BYTES_TO_T_UINT_2( 0x51, 0x00 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x00, 0x3F, 0x50, 0x6B, 0xD4, 0x1F, 0x45, 0xEF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xF1, 0x34, 0x2C, 0x3D, 0x88, 0xDF, 0x73, 0x35 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x07, 0xBF, 0xB1, 0x3B, 0xBD, 0xC0, 0x52, 0x16 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x7B, 0x93, 0x7E, 0xEC, 0x51, 0x39, 0x19, 0x56 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xE1, 0x09, 0xF1, 0x8E, 0x91, 0x89, 0xB4, 0xB8 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xF3, 0x15, 0xB3, 0x99, 0x5B, 0x72, 0xDA, 0xA2 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xEE, 0x40, 0x85, 0xB6, 0xA0, 0x21, 0x9A, 0x92 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x1F, 0x9A, 0x1C, 0x8E, 0x61, 0xB9, 0x3E, 0x95 ),
+    MBEDTLS_BYTES_TO_T_UINT_2( 0x51, 0x00 ),
 };
 static const mbedtls_mpi_uint secp521r1_gx[] = {
-    BYTES_TO_T_UINT_8( 0x66, 0xBD, 0xE5, 0xC2, 0x31, 0x7E, 0x7E, 0xF9 ),
-    BYTES_TO_T_UINT_8( 0x9B, 0x42, 0x6A, 0x85, 0xC1, 0xB3, 0x48, 0x33 ),
-    BYTES_TO_T_UINT_8( 0xDE, 0xA8, 0xFF, 0xA2, 0x27, 0xC1, 0x1D, 0xFE ),
-    BYTES_TO_T_UINT_8( 0x28, 0x59, 0xE7, 0xEF, 0x77, 0x5E, 0x4B, 0xA1 ),
-    BYTES_TO_T_UINT_8( 0xBA, 0x3D, 0x4D, 0x6B, 0x60, 0xAF, 0x28, 0xF8 ),
-    BYTES_TO_T_UINT_8( 0x21, 0xB5, 0x3F, 0x05, 0x39, 0x81, 0x64, 0x9C ),
-    BYTES_TO_T_UINT_8( 0x42, 0xB4, 0x95, 0x23, 0x66, 0xCB, 0x3E, 0x9E ),
-    BYTES_TO_T_UINT_8( 0xCD, 0xE9, 0x04, 0x04, 0xB7, 0x06, 0x8E, 0x85 ),
-    BYTES_TO_T_UINT_2( 0xC6, 0x00 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x66, 0xBD, 0xE5, 0xC2, 0x31, 0x7E, 0x7E, 0xF9 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x9B, 0x42, 0x6A, 0x85, 0xC1, 0xB3, 0x48, 0x33 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xDE, 0xA8, 0xFF, 0xA2, 0x27, 0xC1, 0x1D, 0xFE ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x28, 0x59, 0xE7, 0xEF, 0x77, 0x5E, 0x4B, 0xA1 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xBA, 0x3D, 0x4D, 0x6B, 0x60, 0xAF, 0x28, 0xF8 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x21, 0xB5, 0x3F, 0x05, 0x39, 0x81, 0x64, 0x9C ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x42, 0xB4, 0x95, 0x23, 0x66, 0xCB, 0x3E, 0x9E ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xCD, 0xE9, 0x04, 0x04, 0xB7, 0x06, 0x8E, 0x85 ),
+    MBEDTLS_BYTES_TO_T_UINT_2( 0xC6, 0x00 ),
 };
 static const mbedtls_mpi_uint secp521r1_gy[] = {
-    BYTES_TO_T_UINT_8( 0x50, 0x66, 0xD1, 0x9F, 0x76, 0x94, 0xBE, 0x88 ),
-    BYTES_TO_T_UINT_8( 0x40, 0xC2, 0x72, 0xA2, 0x86, 0x70, 0x3C, 0x35 ),
-    BYTES_TO_T_UINT_8( 0x61, 0x07, 0xAD, 0x3F, 0x01, 0xB9, 0x50, 0xC5 ),
-    BYTES_TO_T_UINT_8( 0x40, 0x26, 0xF4, 0x5E, 0x99, 0x72, 0xEE, 0x97 ),
-    BYTES_TO_T_UINT_8( 0x2C, 0x66, 0x3E, 0x27, 0x17, 0xBD, 0xAF, 0x17 ),
-    BYTES_TO_T_UINT_8( 0x68, 0x44, 0x9B, 0x57, 0x49, 0x44, 0xF5, 0x98 ),
-    BYTES_TO_T_UINT_8( 0xD9, 0x1B, 0x7D, 0x2C, 0xB4, 0x5F, 0x8A, 0x5C ),
-    BYTES_TO_T_UINT_8( 0x04, 0xC0, 0x3B, 0x9A, 0x78, 0x6A, 0x29, 0x39 ),
-    BYTES_TO_T_UINT_2( 0x18, 0x01 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x50, 0x66, 0xD1, 0x9F, 0x76, 0x94, 0xBE, 0x88 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x40, 0xC2, 0x72, 0xA2, 0x86, 0x70, 0x3C, 0x35 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x61, 0x07, 0xAD, 0x3F, 0x01, 0xB9, 0x50, 0xC5 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x40, 0x26, 0xF4, 0x5E, 0x99, 0x72, 0xEE, 0x97 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x2C, 0x66, 0x3E, 0x27, 0x17, 0xBD, 0xAF, 0x17 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x68, 0x44, 0x9B, 0x57, 0x49, 0x44, 0xF5, 0x98 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xD9, 0x1B, 0x7D, 0x2C, 0xB4, 0x5F, 0x8A, 0x5C ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x04, 0xC0, 0x3B, 0x9A, 0x78, 0x6A, 0x29, 0x39 ),
+    MBEDTLS_BYTES_TO_T_UINT_2( 0x18, 0x01 ),
 };
 static const mbedtls_mpi_uint secp521r1_n[] = {
-    BYTES_TO_T_UINT_8( 0x09, 0x64, 0x38, 0x91, 0x1E, 0xB7, 0x6F, 0xBB ),
-    BYTES_TO_T_UINT_8( 0xAE, 0x47, 0x9C, 0x89, 0xB8, 0xC9, 0xB5, 0x3B ),
-    BYTES_TO_T_UINT_8( 0xD0, 0xA5, 0x09, 0xF7, 0x48, 0x01, 0xCC, 0x7F ),
-    BYTES_TO_T_UINT_8( 0x6B, 0x96, 0x2F, 0xBF, 0x83, 0x87, 0x86, 0x51 ),
-    BYTES_TO_T_UINT_8( 0xFA, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_2( 0xFF, 0x01 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x09, 0x64, 0x38, 0x91, 0x1E, 0xB7, 0x6F, 0xBB ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xAE, 0x47, 0x9C, 0x89, 0xB8, 0xC9, 0xB5, 0x3B ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xD0, 0xA5, 0x09, 0xF7, 0x48, 0x01, 0xCC, 0x7F ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x6B, 0x96, 0x2F, 0xBF, 0x83, 0x87, 0x86, 0x51 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFA, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_2( 0xFF, 0x01 ),
 };
 #endif /* MBEDTLS_ECP_DP_SECP521R1_ENABLED */
 
 #if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED)
 static const mbedtls_mpi_uint secp192k1_p[] = {
-    BYTES_TO_T_UINT_8( 0x37, 0xEE, 0xFF, 0xFF, 0xFE, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x37, 0xEE, 0xFF, 0xFF, 0xFE, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
 };
 static const mbedtls_mpi_uint secp192k1_a[] = {
-    BYTES_TO_T_UINT_2( 0x00, 0x00 ),
+    MBEDTLS_BYTES_TO_T_UINT_2( 0x00, 0x00 ),
 };
 static const mbedtls_mpi_uint secp192k1_b[] = {
-    BYTES_TO_T_UINT_2( 0x03, 0x00 ),
+    MBEDTLS_BYTES_TO_T_UINT_2( 0x03, 0x00 ),
 };
 static const mbedtls_mpi_uint secp192k1_gx[] = {
-    BYTES_TO_T_UINT_8( 0x7D, 0x6C, 0xE0, 0xEA, 0xB1, 0xD1, 0xA5, 0x1D ),
-    BYTES_TO_T_UINT_8( 0x34, 0xF4, 0xB7, 0x80, 0x02, 0x7D, 0xB0, 0x26 ),
-    BYTES_TO_T_UINT_8( 0xAE, 0xE9, 0x57, 0xC0, 0x0E, 0xF1, 0x4F, 0xDB ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x7D, 0x6C, 0xE0, 0xEA, 0xB1, 0xD1, 0xA5, 0x1D ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x34, 0xF4, 0xB7, 0x80, 0x02, 0x7D, 0xB0, 0x26 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xAE, 0xE9, 0x57, 0xC0, 0x0E, 0xF1, 0x4F, 0xDB ),
 };
 static const mbedtls_mpi_uint secp192k1_gy[] = {
-    BYTES_TO_T_UINT_8( 0x9D, 0x2F, 0x5E, 0xD9, 0x88, 0xAA, 0x82, 0x40 ),
-    BYTES_TO_T_UINT_8( 0x34, 0x86, 0xBE, 0x15, 0xD0, 0x63, 0x41, 0x84 ),
-    BYTES_TO_T_UINT_8( 0xA7, 0x28, 0x56, 0x9C, 0x6D, 0x2F, 0x2F, 0x9B ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x9D, 0x2F, 0x5E, 0xD9, 0x88, 0xAA, 0x82, 0x40 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x34, 0x86, 0xBE, 0x15, 0xD0, 0x63, 0x41, 0x84 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xA7, 0x28, 0x56, 0x9C, 0x6D, 0x2F, 0x2F, 0x9B ),
 };
 static const mbedtls_mpi_uint secp192k1_n[] = {
-    BYTES_TO_T_UINT_8( 0x8D, 0xFD, 0xDE, 0x74, 0x6A, 0x46, 0x69, 0x0F ),
-    BYTES_TO_T_UINT_8( 0x17, 0xFC, 0xF2, 0x26, 0xFE, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x8D, 0xFD, 0xDE, 0x74, 0x6A, 0x46, 0x69, 0x0F ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x17, 0xFC, 0xF2, 0x26, 0xFE, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
 };
 #endif /* MBEDTLS_ECP_DP_SECP192K1_ENABLED */
 
 #if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED)
 static const mbedtls_mpi_uint secp224k1_p[] = {
-    BYTES_TO_T_UINT_8( 0x6D, 0xE5, 0xFF, 0xFF, 0xFE, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_4( 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x6D, 0xE5, 0xFF, 0xFF, 0xFE, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_4( 0xFF, 0xFF, 0xFF, 0xFF ),
 };
 static const mbedtls_mpi_uint secp224k1_a[] = {
-    BYTES_TO_T_UINT_2( 0x00, 0x00 ),
+    MBEDTLS_BYTES_TO_T_UINT_2( 0x00, 0x00 ),
 };
 static const mbedtls_mpi_uint secp224k1_b[] = {
-    BYTES_TO_T_UINT_2( 0x05, 0x00 ),
+    MBEDTLS_BYTES_TO_T_UINT_2( 0x05, 0x00 ),
 };
 static const mbedtls_mpi_uint secp224k1_gx[] = {
-    BYTES_TO_T_UINT_8( 0x5C, 0xA4, 0xB7, 0xB6, 0x0E, 0x65, 0x7E, 0x0F ),
-    BYTES_TO_T_UINT_8( 0xA9, 0x75, 0x70, 0xE4, 0xE9, 0x67, 0xA4, 0x69 ),
-    BYTES_TO_T_UINT_8( 0xA1, 0x28, 0xFC, 0x30, 0xDF, 0x99, 0xF0, 0x4D ),
-    BYTES_TO_T_UINT_4( 0x33, 0x5B, 0x45, 0xA1 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x5C, 0xA4, 0xB7, 0xB6, 0x0E, 0x65, 0x7E, 0x0F ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xA9, 0x75, 0x70, 0xE4, 0xE9, 0x67, 0xA4, 0x69 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xA1, 0x28, 0xFC, 0x30, 0xDF, 0x99, 0xF0, 0x4D ),
+    MBEDTLS_BYTES_TO_T_UINT_4( 0x33, 0x5B, 0x45, 0xA1 ),
 };
 static const mbedtls_mpi_uint secp224k1_gy[] = {
-    BYTES_TO_T_UINT_8( 0xA5, 0x61, 0x6D, 0x55, 0xDB, 0x4B, 0xCA, 0xE2 ),
-    BYTES_TO_T_UINT_8( 0x59, 0xBD, 0xB0, 0xC0, 0xF7, 0x19, 0xE3, 0xF7 ),
-    BYTES_TO_T_UINT_8( 0xD6, 0xFB, 0xCA, 0x82, 0x42, 0x34, 0xBA, 0x7F ),
-    BYTES_TO_T_UINT_4( 0xED, 0x9F, 0x08, 0x7E ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xA5, 0x61, 0x6D, 0x55, 0xDB, 0x4B, 0xCA, 0xE2 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x59, 0xBD, 0xB0, 0xC0, 0xF7, 0x19, 0xE3, 0xF7 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xD6, 0xFB, 0xCA, 0x82, 0x42, 0x34, 0xBA, 0x7F ),
+    MBEDTLS_BYTES_TO_T_UINT_4( 0xED, 0x9F, 0x08, 0x7E ),
 };
 static const mbedtls_mpi_uint secp224k1_n[] = {
-    BYTES_TO_T_UINT_8( 0xF7, 0xB1, 0x9F, 0x76, 0x71, 0xA9, 0xF0, 0xCA ),
-    BYTES_TO_T_UINT_8( 0x84, 0x61, 0xEC, 0xD2, 0xE8, 0xDC, 0x01, 0x00 ),
-    BYTES_TO_T_UINT_8( 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ),
-    BYTES_TO_T_UINT_8( 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xF7, 0xB1, 0x9F, 0x76, 0x71, 0xA9, 0xF0, 0xCA ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x84, 0x61, 0xEC, 0xD2, 0xE8, 0xDC, 0x01, 0x00 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00 ),
 };
 #endif /* MBEDTLS_ECP_DP_SECP224K1_ENABLED */
 
 #if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED)
 static const mbedtls_mpi_uint secp256k1_p[] = {
-    BYTES_TO_T_UINT_8( 0x2F, 0xFC, 0xFF, 0xFF, 0xFE, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x2F, 0xFC, 0xFF, 0xFF, 0xFE, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
 };
 static const mbedtls_mpi_uint secp256k1_a[] = {
-    BYTES_TO_T_UINT_2( 0x00, 0x00 ),
+    MBEDTLS_BYTES_TO_T_UINT_2( 0x00, 0x00 ),
 };
 static const mbedtls_mpi_uint secp256k1_b[] = {
-    BYTES_TO_T_UINT_2( 0x07, 0x00 ),
+    MBEDTLS_BYTES_TO_T_UINT_2( 0x07, 0x00 ),
 };
 static const mbedtls_mpi_uint secp256k1_gx[] = {
-    BYTES_TO_T_UINT_8( 0x98, 0x17, 0xF8, 0x16, 0x5B, 0x81, 0xF2, 0x59 ),
-    BYTES_TO_T_UINT_8( 0xD9, 0x28, 0xCE, 0x2D, 0xDB, 0xFC, 0x9B, 0x02 ),
-    BYTES_TO_T_UINT_8( 0x07, 0x0B, 0x87, 0xCE, 0x95, 0x62, 0xA0, 0x55 ),
-    BYTES_TO_T_UINT_8( 0xAC, 0xBB, 0xDC, 0xF9, 0x7E, 0x66, 0xBE, 0x79 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x98, 0x17, 0xF8, 0x16, 0x5B, 0x81, 0xF2, 0x59 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xD9, 0x28, 0xCE, 0x2D, 0xDB, 0xFC, 0x9B, 0x02 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x07, 0x0B, 0x87, 0xCE, 0x95, 0x62, 0xA0, 0x55 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xAC, 0xBB, 0xDC, 0xF9, 0x7E, 0x66, 0xBE, 0x79 ),
 };
 static const mbedtls_mpi_uint secp256k1_gy[] = {
-    BYTES_TO_T_UINT_8( 0xB8, 0xD4, 0x10, 0xFB, 0x8F, 0xD0, 0x47, 0x9C ),
-    BYTES_TO_T_UINT_8( 0x19, 0x54, 0x85, 0xA6, 0x48, 0xB4, 0x17, 0xFD ),
-    BYTES_TO_T_UINT_8( 0xA8, 0x08, 0x11, 0x0E, 0xFC, 0xFB, 0xA4, 0x5D ),
-    BYTES_TO_T_UINT_8( 0x65, 0xC4, 0xA3, 0x26, 0x77, 0xDA, 0x3A, 0x48 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xB8, 0xD4, 0x10, 0xFB, 0x8F, 0xD0, 0x47, 0x9C ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x19, 0x54, 0x85, 0xA6, 0x48, 0xB4, 0x17, 0xFD ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xA8, 0x08, 0x11, 0x0E, 0xFC, 0xFB, 0xA4, 0x5D ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x65, 0xC4, 0xA3, 0x26, 0x77, 0xDA, 0x3A, 0x48 ),
 };
 static const mbedtls_mpi_uint secp256k1_n[] = {
-    BYTES_TO_T_UINT_8( 0x41, 0x41, 0x36, 0xD0, 0x8C, 0x5E, 0xD2, 0xBF ),
-    BYTES_TO_T_UINT_8( 0x3B, 0xA0, 0x48, 0xAF, 0xE6, 0xDC, 0xAE, 0xBA ),
-    BYTES_TO_T_UINT_8( 0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
-    BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x41, 0x41, 0x36, 0xD0, 0x8C, 0x5E, 0xD2, 0xBF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x3B, 0xA0, 0x48, 0xAF, 0xE6, 0xDC, 0xAE, 0xBA ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
 };
 #endif /* MBEDTLS_ECP_DP_SECP256K1_ENABLED */
 
@@ -396,40 +363,40 @@ static const mbedtls_mpi_uint secp256k1_n[] = {
  */
 #if defined(MBEDTLS_ECP_DP_BP256R1_ENABLED)
 static const mbedtls_mpi_uint brainpoolP256r1_p[] = {
-    BYTES_TO_T_UINT_8( 0x77, 0x53, 0x6E, 0x1F, 0x1D, 0x48, 0x13, 0x20 ),
-    BYTES_TO_T_UINT_8( 0x28, 0x20, 0x26, 0xD5, 0x23, 0xF6, 0x3B, 0x6E ),
-    BYTES_TO_T_UINT_8( 0x72, 0x8D, 0x83, 0x9D, 0x90, 0x0A, 0x66, 0x3E ),
-    BYTES_TO_T_UINT_8( 0xBC, 0xA9, 0xEE, 0xA1, 0xDB, 0x57, 0xFB, 0xA9 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x77, 0x53, 0x6E, 0x1F, 0x1D, 0x48, 0x13, 0x20 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x28, 0x20, 0x26, 0xD5, 0x23, 0xF6, 0x3B, 0x6E ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x72, 0x8D, 0x83, 0x9D, 0x90, 0x0A, 0x66, 0x3E ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xBC, 0xA9, 0xEE, 0xA1, 0xDB, 0x57, 0xFB, 0xA9 ),
 };
 static const mbedtls_mpi_uint brainpoolP256r1_a[] = {
-    BYTES_TO_T_UINT_8( 0xD9, 0xB5, 0x30, 0xF3, 0x44, 0x4B, 0x4A, 0xE9 ),
-    BYTES_TO_T_UINT_8( 0x6C, 0x5C, 0xDC, 0x26, 0xC1, 0x55, 0x80, 0xFB ),
-    BYTES_TO_T_UINT_8( 0xE7, 0xFF, 0x7A, 0x41, 0x30, 0x75, 0xF6, 0xEE ),
-    BYTES_TO_T_UINT_8( 0x57, 0x30, 0x2C, 0xFC, 0x75, 0x09, 0x5A, 0x7D ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xD9, 0xB5, 0x30, 0xF3, 0x44, 0x4B, 0x4A, 0xE9 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x6C, 0x5C, 0xDC, 0x26, 0xC1, 0x55, 0x80, 0xFB ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xE7, 0xFF, 0x7A, 0x41, 0x30, 0x75, 0xF6, 0xEE ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x57, 0x30, 0x2C, 0xFC, 0x75, 0x09, 0x5A, 0x7D ),
 };
 static const mbedtls_mpi_uint brainpoolP256r1_b[] = {
-    BYTES_TO_T_UINT_8( 0xB6, 0x07, 0x8C, 0xFF, 0x18, 0xDC, 0xCC, 0x6B ),
-    BYTES_TO_T_UINT_8( 0xCE, 0xE1, 0xF7, 0x5C, 0x29, 0x16, 0x84, 0x95 ),
-    BYTES_TO_T_UINT_8( 0xBF, 0x7C, 0xD7, 0xBB, 0xD9, 0xB5, 0x30, 0xF3 ),
-    BYTES_TO_T_UINT_8( 0x44, 0x4B, 0x4A, 0xE9, 0x6C, 0x5C, 0xDC, 0x26 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xB6, 0x07, 0x8C, 0xFF, 0x18, 0xDC, 0xCC, 0x6B ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xCE, 0xE1, 0xF7, 0x5C, 0x29, 0x16, 0x84, 0x95 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xBF, 0x7C, 0xD7, 0xBB, 0xD9, 0xB5, 0x30, 0xF3 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x44, 0x4B, 0x4A, 0xE9, 0x6C, 0x5C, 0xDC, 0x26 ),
 };
 static const mbedtls_mpi_uint brainpoolP256r1_gx[] = {
-    BYTES_TO_T_UINT_8( 0x62, 0x32, 0xCE, 0x9A, 0xBD, 0x53, 0x44, 0x3A ),
-    BYTES_TO_T_UINT_8( 0xC2, 0x23, 0xBD, 0xE3, 0xE1, 0x27, 0xDE, 0xB9 ),
-    BYTES_TO_T_UINT_8( 0xAF, 0xB7, 0x81, 0xFC, 0x2F, 0x48, 0x4B, 0x2C ),
-    BYTES_TO_T_UINT_8( 0xCB, 0x57, 0x7E, 0xCB, 0xB9, 0xAE, 0xD2, 0x8B ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x62, 0x32, 0xCE, 0x9A, 0xBD, 0x53, 0x44, 0x3A ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xC2, 0x23, 0xBD, 0xE3, 0xE1, 0x27, 0xDE, 0xB9 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xAF, 0xB7, 0x81, 0xFC, 0x2F, 0x48, 0x4B, 0x2C ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xCB, 0x57, 0x7E, 0xCB, 0xB9, 0xAE, 0xD2, 0x8B ),
 };
 static const mbedtls_mpi_uint brainpoolP256r1_gy[] = {
-    BYTES_TO_T_UINT_8( 0x97, 0x69, 0x04, 0x2F, 0xC7, 0x54, 0x1D, 0x5C ),
-    BYTES_TO_T_UINT_8( 0x54, 0x8E, 0xED, 0x2D, 0x13, 0x45, 0x77, 0xC2 ),
-    BYTES_TO_T_UINT_8( 0xC9, 0x1D, 0x61, 0x14, 0x1A, 0x46, 0xF8, 0x97 ),
-    BYTES_TO_T_UINT_8( 0xFD, 0xC4, 0xDA, 0xC3, 0x35, 0xF8, 0x7E, 0x54 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x97, 0x69, 0x04, 0x2F, 0xC7, 0x54, 0x1D, 0x5C ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x54, 0x8E, 0xED, 0x2D, 0x13, 0x45, 0x77, 0xC2 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xC9, 0x1D, 0x61, 0x14, 0x1A, 0x46, 0xF8, 0x97 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFD, 0xC4, 0xDA, 0xC3, 0x35, 0xF8, 0x7E, 0x54 ),
 };
 static const mbedtls_mpi_uint brainpoolP256r1_n[] = {
-    BYTES_TO_T_UINT_8( 0xA7, 0x56, 0x48, 0x97, 0x82, 0x0E, 0x1E, 0x90 ),
-    BYTES_TO_T_UINT_8( 0xF7, 0xA6, 0x61, 0xB5, 0xA3, 0x7A, 0x39, 0x8C ),
-    BYTES_TO_T_UINT_8( 0x71, 0x8D, 0x83, 0x9D, 0x90, 0x0A, 0x66, 0x3E ),
-    BYTES_TO_T_UINT_8( 0xBC, 0xA9, 0xEE, 0xA1, 0xDB, 0x57, 0xFB, 0xA9 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xA7, 0x56, 0x48, 0x97, 0x82, 0x0E, 0x1E, 0x90 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xF7, 0xA6, 0x61, 0xB5, 0xA3, 0x7A, 0x39, 0x8C ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x71, 0x8D, 0x83, 0x9D, 0x90, 0x0A, 0x66, 0x3E ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xBC, 0xA9, 0xEE, 0xA1, 0xDB, 0x57, 0xFB, 0xA9 ),
 };
 #endif /* MBEDTLS_ECP_DP_BP256R1_ENABLED */
 
@@ -438,52 +405,52 @@ static const mbedtls_mpi_uint brainpoolP256r1_n[] = {
  */
 #if defined(MBEDTLS_ECP_DP_BP384R1_ENABLED)
 static const mbedtls_mpi_uint brainpoolP384r1_p[] = {
-    BYTES_TO_T_UINT_8( 0x53, 0xEC, 0x07, 0x31, 0x13, 0x00, 0x47, 0x87 ),
-    BYTES_TO_T_UINT_8( 0x71, 0x1A, 0x1D, 0x90, 0x29, 0xA7, 0xD3, 0xAC ),
-    BYTES_TO_T_UINT_8( 0x23, 0x11, 0xB7, 0x7F, 0x19, 0xDA, 0xB1, 0x12 ),
-    BYTES_TO_T_UINT_8( 0xB4, 0x56, 0x54, 0xED, 0x09, 0x71, 0x2F, 0x15 ),
-    BYTES_TO_T_UINT_8( 0xDF, 0x41, 0xE6, 0x50, 0x7E, 0x6F, 0x5D, 0x0F ),
-    BYTES_TO_T_UINT_8( 0x28, 0x6D, 0x38, 0xA3, 0x82, 0x1E, 0xB9, 0x8C ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x53, 0xEC, 0x07, 0x31, 0x13, 0x00, 0x47, 0x87 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x71, 0x1A, 0x1D, 0x90, 0x29, 0xA7, 0xD3, 0xAC ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x23, 0x11, 0xB7, 0x7F, 0x19, 0xDA, 0xB1, 0x12 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xB4, 0x56, 0x54, 0xED, 0x09, 0x71, 0x2F, 0x15 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xDF, 0x41, 0xE6, 0x50, 0x7E, 0x6F, 0x5D, 0x0F ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x28, 0x6D, 0x38, 0xA3, 0x82, 0x1E, 0xB9, 0x8C ),
 };
 static const mbedtls_mpi_uint brainpoolP384r1_a[] = {
-    BYTES_TO_T_UINT_8( 0x26, 0x28, 0xCE, 0x22, 0xDD, 0xC7, 0xA8, 0x04 ),
-    BYTES_TO_T_UINT_8( 0xEB, 0xD4, 0x3A, 0x50, 0x4A, 0x81, 0xA5, 0x8A ),
-    BYTES_TO_T_UINT_8( 0x0F, 0xF9, 0x91, 0xBA, 0xEF, 0x65, 0x91, 0x13 ),
-    BYTES_TO_T_UINT_8( 0x87, 0x27, 0xB2, 0x4F, 0x8E, 0xA2, 0xBE, 0xC2 ),
-    BYTES_TO_T_UINT_8( 0xA0, 0xAF, 0x05, 0xCE, 0x0A, 0x08, 0x72, 0x3C ),
-    BYTES_TO_T_UINT_8( 0x0C, 0x15, 0x8C, 0x3D, 0xC6, 0x82, 0xC3, 0x7B ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x26, 0x28, 0xCE, 0x22, 0xDD, 0xC7, 0xA8, 0x04 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xEB, 0xD4, 0x3A, 0x50, 0x4A, 0x81, 0xA5, 0x8A ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x0F, 0xF9, 0x91, 0xBA, 0xEF, 0x65, 0x91, 0x13 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x87, 0x27, 0xB2, 0x4F, 0x8E, 0xA2, 0xBE, 0xC2 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xA0, 0xAF, 0x05, 0xCE, 0x0A, 0x08, 0x72, 0x3C ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x0C, 0x15, 0x8C, 0x3D, 0xC6, 0x82, 0xC3, 0x7B ),
 };
 static const mbedtls_mpi_uint brainpoolP384r1_b[] = {
-    BYTES_TO_T_UINT_8( 0x11, 0x4C, 0x50, 0xFA, 0x96, 0x86, 0xB7, 0x3A ),
-    BYTES_TO_T_UINT_8( 0x94, 0xC9, 0xDB, 0x95, 0x02, 0x39, 0xB4, 0x7C ),
-    BYTES_TO_T_UINT_8( 0xD5, 0x62, 0xEB, 0x3E, 0xA5, 0x0E, 0x88, 0x2E ),
-    BYTES_TO_T_UINT_8( 0xA6, 0xD2, 0xDC, 0x07, 0xE1, 0x7D, 0xB7, 0x2F ),
-    BYTES_TO_T_UINT_8( 0x7C, 0x44, 0xF0, 0x16, 0x54, 0xB5, 0x39, 0x8B ),
-    BYTES_TO_T_UINT_8( 0x26, 0x28, 0xCE, 0x22, 0xDD, 0xC7, 0xA8, 0x04 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x11, 0x4C, 0x50, 0xFA, 0x96, 0x86, 0xB7, 0x3A ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x94, 0xC9, 0xDB, 0x95, 0x02, 0x39, 0xB4, 0x7C ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xD5, 0x62, 0xEB, 0x3E, 0xA5, 0x0E, 0x88, 0x2E ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xA6, 0xD2, 0xDC, 0x07, 0xE1, 0x7D, 0xB7, 0x2F ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x7C, 0x44, 0xF0, 0x16, 0x54, 0xB5, 0x39, 0x8B ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x26, 0x28, 0xCE, 0x22, 0xDD, 0xC7, 0xA8, 0x04 ),
 };
 static const mbedtls_mpi_uint brainpoolP384r1_gx[] = {
-    BYTES_TO_T_UINT_8( 0x1E, 0xAF, 0xD4, 0x47, 0xE2, 0xB2, 0x87, 0xEF ),
-    BYTES_TO_T_UINT_8( 0xAA, 0x46, 0xD6, 0x36, 0x34, 0xE0, 0x26, 0xE8 ),
-    BYTES_TO_T_UINT_8( 0xE8, 0x10, 0xBD, 0x0C, 0xFE, 0xCA, 0x7F, 0xDB ),
-    BYTES_TO_T_UINT_8( 0xE3, 0x4F, 0xF1, 0x7E, 0xE7, 0xA3, 0x47, 0x88 ),
-    BYTES_TO_T_UINT_8( 0x6B, 0x3F, 0xC1, 0xB7, 0x81, 0x3A, 0xA6, 0xA2 ),
-    BYTES_TO_T_UINT_8( 0xFF, 0x45, 0xCF, 0x68, 0xF0, 0x64, 0x1C, 0x1D ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x1E, 0xAF, 0xD4, 0x47, 0xE2, 0xB2, 0x87, 0xEF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xAA, 0x46, 0xD6, 0x36, 0x34, 0xE0, 0x26, 0xE8 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xE8, 0x10, 0xBD, 0x0C, 0xFE, 0xCA, 0x7F, 0xDB ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xE3, 0x4F, 0xF1, 0x7E, 0xE7, 0xA3, 0x47, 0x88 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x6B, 0x3F, 0xC1, 0xB7, 0x81, 0x3A, 0xA6, 0xA2 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFF, 0x45, 0xCF, 0x68, 0xF0, 0x64, 0x1C, 0x1D ),
 };
 static const mbedtls_mpi_uint brainpoolP384r1_gy[] = {
-    BYTES_TO_T_UINT_8( 0x15, 0x53, 0x3C, 0x26, 0x41, 0x03, 0x82, 0x42 ),
-    BYTES_TO_T_UINT_8( 0x11, 0x81, 0x91, 0x77, 0x21, 0x46, 0x46, 0x0E ),
-    BYTES_TO_T_UINT_8( 0x28, 0x29, 0x91, 0xF9, 0x4F, 0x05, 0x9C, 0xE1 ),
-    BYTES_TO_T_UINT_8( 0x64, 0x58, 0xEC, 0xFE, 0x29, 0x0B, 0xB7, 0x62 ),
-    BYTES_TO_T_UINT_8( 0x52, 0xD5, 0xCF, 0x95, 0x8E, 0xEB, 0xB1, 0x5C ),
-    BYTES_TO_T_UINT_8( 0xA4, 0xC2, 0xF9, 0x20, 0x75, 0x1D, 0xBE, 0x8A ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x15, 0x53, 0x3C, 0x26, 0x41, 0x03, 0x82, 0x42 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x11, 0x81, 0x91, 0x77, 0x21, 0x46, 0x46, 0x0E ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x28, 0x29, 0x91, 0xF9, 0x4F, 0x05, 0x9C, 0xE1 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x64, 0x58, 0xEC, 0xFE, 0x29, 0x0B, 0xB7, 0x62 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x52, 0xD5, 0xCF, 0x95, 0x8E, 0xEB, 0xB1, 0x5C ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xA4, 0xC2, 0xF9, 0x20, 0x75, 0x1D, 0xBE, 0x8A ),
 };
 static const mbedtls_mpi_uint brainpoolP384r1_n[] = {
-    BYTES_TO_T_UINT_8( 0x65, 0x65, 0x04, 0xE9, 0x02, 0x32, 0x88, 0x3B ),
-    BYTES_TO_T_UINT_8( 0x10, 0xC3, 0x7F, 0x6B, 0xAF, 0xB6, 0x3A, 0xCF ),
-    BYTES_TO_T_UINT_8( 0xA7, 0x25, 0x04, 0xAC, 0x6C, 0x6E, 0x16, 0x1F ),
-    BYTES_TO_T_UINT_8( 0xB3, 0x56, 0x54, 0xED, 0x09, 0x71, 0x2F, 0x15 ),
-    BYTES_TO_T_UINT_8( 0xDF, 0x41, 0xE6, 0x50, 0x7E, 0x6F, 0x5D, 0x0F ),
-    BYTES_TO_T_UINT_8( 0x28, 0x6D, 0x38, 0xA3, 0x82, 0x1E, 0xB9, 0x8C ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x65, 0x65, 0x04, 0xE9, 0x02, 0x32, 0x88, 0x3B ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x10, 0xC3, 0x7F, 0x6B, 0xAF, 0xB6, 0x3A, 0xCF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xA7, 0x25, 0x04, 0xAC, 0x6C, 0x6E, 0x16, 0x1F ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xB3, 0x56, 0x54, 0xED, 0x09, 0x71, 0x2F, 0x15 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xDF, 0x41, 0xE6, 0x50, 0x7E, 0x6F, 0x5D, 0x0F ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x28, 0x6D, 0x38, 0xA3, 0x82, 0x1E, 0xB9, 0x8C ),
 };
 #endif /* MBEDTLS_ECP_DP_BP384R1_ENABLED */
 
@@ -492,64 +459,64 @@ static const mbedtls_mpi_uint brainpoolP384r1_n[] = {
  */
 #if defined(MBEDTLS_ECP_DP_BP512R1_ENABLED)
 static const mbedtls_mpi_uint brainpoolP512r1_p[] = {
-    BYTES_TO_T_UINT_8( 0xF3, 0x48, 0x3A, 0x58, 0x56, 0x60, 0xAA, 0x28 ),
-    BYTES_TO_T_UINT_8( 0x85, 0xC6, 0x82, 0x2D, 0x2F, 0xFF, 0x81, 0x28 ),
-    BYTES_TO_T_UINT_8( 0xE6, 0x80, 0xA3, 0xE6, 0x2A, 0xA1, 0xCD, 0xAE ),
-    BYTES_TO_T_UINT_8( 0x42, 0x68, 0xC6, 0x9B, 0x00, 0x9B, 0x4D, 0x7D ),
-    BYTES_TO_T_UINT_8( 0x71, 0x08, 0x33, 0x70, 0xCA, 0x9C, 0x63, 0xD6 ),
-    BYTES_TO_T_UINT_8( 0x0E, 0xD2, 0xC9, 0xB3, 0xB3, 0x8D, 0x30, 0xCB ),
-    BYTES_TO_T_UINT_8( 0x07, 0xFC, 0xC9, 0x33, 0xAE, 0xE6, 0xD4, 0x3F ),
-    BYTES_TO_T_UINT_8( 0x8B, 0xC4, 0xE9, 0xDB, 0xB8, 0x9D, 0xDD, 0xAA ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xF3, 0x48, 0x3A, 0x58, 0x56, 0x60, 0xAA, 0x28 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x85, 0xC6, 0x82, 0x2D, 0x2F, 0xFF, 0x81, 0x28 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xE6, 0x80, 0xA3, 0xE6, 0x2A, 0xA1, 0xCD, 0xAE ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x42, 0x68, 0xC6, 0x9B, 0x00, 0x9B, 0x4D, 0x7D ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x71, 0x08, 0x33, 0x70, 0xCA, 0x9C, 0x63, 0xD6 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x0E, 0xD2, 0xC9, 0xB3, 0xB3, 0x8D, 0x30, 0xCB ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x07, 0xFC, 0xC9, 0x33, 0xAE, 0xE6, 0xD4, 0x3F ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x8B, 0xC4, 0xE9, 0xDB, 0xB8, 0x9D, 0xDD, 0xAA ),
 };
 static const mbedtls_mpi_uint brainpoolP512r1_a[] = {
-    BYTES_TO_T_UINT_8( 0xCA, 0x94, 0xFC, 0x77, 0x4D, 0xAC, 0xC1, 0xE7 ),
-    BYTES_TO_T_UINT_8( 0xB9, 0xC7, 0xF2, 0x2B, 0xA7, 0x17, 0x11, 0x7F ),
-    BYTES_TO_T_UINT_8( 0xB5, 0xC8, 0x9A, 0x8B, 0xC9, 0xF1, 0x2E, 0x0A ),
-    BYTES_TO_T_UINT_8( 0xA1, 0x3A, 0x25, 0xA8, 0x5A, 0x5D, 0xED, 0x2D ),
-    BYTES_TO_T_UINT_8( 0xBC, 0x63, 0x98, 0xEA, 0xCA, 0x41, 0x34, 0xA8 ),
-    BYTES_TO_T_UINT_8( 0x10, 0x16, 0xF9, 0x3D, 0x8D, 0xDD, 0xCB, 0x94 ),
-    BYTES_TO_T_UINT_8( 0xC5, 0x4C, 0x23, 0xAC, 0x45, 0x71, 0x32, 0xE2 ),
-    BYTES_TO_T_UINT_8( 0x89, 0x3B, 0x60, 0x8B, 0x31, 0xA3, 0x30, 0x78 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xCA, 0x94, 0xFC, 0x77, 0x4D, 0xAC, 0xC1, 0xE7 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xB9, 0xC7, 0xF2, 0x2B, 0xA7, 0x17, 0x11, 0x7F ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xB5, 0xC8, 0x9A, 0x8B, 0xC9, 0xF1, 0x2E, 0x0A ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xA1, 0x3A, 0x25, 0xA8, 0x5A, 0x5D, 0xED, 0x2D ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xBC, 0x63, 0x98, 0xEA, 0xCA, 0x41, 0x34, 0xA8 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x10, 0x16, 0xF9, 0x3D, 0x8D, 0xDD, 0xCB, 0x94 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xC5, 0x4C, 0x23, 0xAC, 0x45, 0x71, 0x32, 0xE2 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x89, 0x3B, 0x60, 0x8B, 0x31, 0xA3, 0x30, 0x78 ),
 };
 static const mbedtls_mpi_uint brainpoolP512r1_b[] = {
-    BYTES_TO_T_UINT_8( 0x23, 0xF7, 0x16, 0x80, 0x63, 0xBD, 0x09, 0x28 ),
-    BYTES_TO_T_UINT_8( 0xDD, 0xE5, 0xBA, 0x5E, 0xB7, 0x50, 0x40, 0x98 ),
-    BYTES_TO_T_UINT_8( 0x67, 0x3E, 0x08, 0xDC, 0xCA, 0x94, 0xFC, 0x77 ),
-    BYTES_TO_T_UINT_8( 0x4D, 0xAC, 0xC1, 0xE7, 0xB9, 0xC7, 0xF2, 0x2B ),
-    BYTES_TO_T_UINT_8( 0xA7, 0x17, 0x11, 0x7F, 0xB5, 0xC8, 0x9A, 0x8B ),
-    BYTES_TO_T_UINT_8( 0xC9, 0xF1, 0x2E, 0x0A, 0xA1, 0x3A, 0x25, 0xA8 ),
-    BYTES_TO_T_UINT_8( 0x5A, 0x5D, 0xED, 0x2D, 0xBC, 0x63, 0x98, 0xEA ),
-    BYTES_TO_T_UINT_8( 0xCA, 0x41, 0x34, 0xA8, 0x10, 0x16, 0xF9, 0x3D ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x23, 0xF7, 0x16, 0x80, 0x63, 0xBD, 0x09, 0x28 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xDD, 0xE5, 0xBA, 0x5E, 0xB7, 0x50, 0x40, 0x98 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x67, 0x3E, 0x08, 0xDC, 0xCA, 0x94, 0xFC, 0x77 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x4D, 0xAC, 0xC1, 0xE7, 0xB9, 0xC7, 0xF2, 0x2B ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xA7, 0x17, 0x11, 0x7F, 0xB5, 0xC8, 0x9A, 0x8B ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xC9, 0xF1, 0x2E, 0x0A, 0xA1, 0x3A, 0x25, 0xA8 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x5A, 0x5D, 0xED, 0x2D, 0xBC, 0x63, 0x98, 0xEA ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xCA, 0x41, 0x34, 0xA8, 0x10, 0x16, 0xF9, 0x3D ),
 };
 static const mbedtls_mpi_uint brainpoolP512r1_gx[] = {
-    BYTES_TO_T_UINT_8( 0x22, 0xF8, 0xB9, 0xBC, 0x09, 0x22, 0x35, 0x8B ),
-    BYTES_TO_T_UINT_8( 0x68, 0x5E, 0x6A, 0x40, 0x47, 0x50, 0x6D, 0x7C ),
-    BYTES_TO_T_UINT_8( 0x5F, 0x7D, 0xB9, 0x93, 0x7B, 0x68, 0xD1, 0x50 ),
-    BYTES_TO_T_UINT_8( 0x8D, 0xD4, 0xD0, 0xE2, 0x78, 0x1F, 0x3B, 0xFF ),
-    BYTES_TO_T_UINT_8( 0x8E, 0x09, 0xD0, 0xF4, 0xEE, 0x62, 0x3B, 0xB4 ),
-    BYTES_TO_T_UINT_8( 0xC1, 0x16, 0xD9, 0xB5, 0x70, 0x9F, 0xED, 0x85 ),
-    BYTES_TO_T_UINT_8( 0x93, 0x6A, 0x4C, 0x9C, 0x2E, 0x32, 0x21, 0x5A ),
-    BYTES_TO_T_UINT_8( 0x64, 0xD9, 0x2E, 0xD8, 0xBD, 0xE4, 0xAE, 0x81 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x22, 0xF8, 0xB9, 0xBC, 0x09, 0x22, 0x35, 0x8B ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x68, 0x5E, 0x6A, 0x40, 0x47, 0x50, 0x6D, 0x7C ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x5F, 0x7D, 0xB9, 0x93, 0x7B, 0x68, 0xD1, 0x50 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x8D, 0xD4, 0xD0, 0xE2, 0x78, 0x1F, 0x3B, 0xFF ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x8E, 0x09, 0xD0, 0xF4, 0xEE, 0x62, 0x3B, 0xB4 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xC1, 0x16, 0xD9, 0xB5, 0x70, 0x9F, 0xED, 0x85 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x93, 0x6A, 0x4C, 0x9C, 0x2E, 0x32, 0x21, 0x5A ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x64, 0xD9, 0x2E, 0xD8, 0xBD, 0xE4, 0xAE, 0x81 ),
 };
 static const mbedtls_mpi_uint brainpoolP512r1_gy[] = {
-    BYTES_TO_T_UINT_8( 0x92, 0x08, 0xD8, 0x3A, 0x0F, 0x1E, 0xCD, 0x78 ),
-    BYTES_TO_T_UINT_8( 0x06, 0x54, 0xF0, 0xA8, 0x2F, 0x2B, 0xCA, 0xD1 ),
-    BYTES_TO_T_UINT_8( 0xAE, 0x63, 0x27, 0x8A, 0xD8, 0x4B, 0xCA, 0x5B ),
-    BYTES_TO_T_UINT_8( 0x5E, 0x48, 0x5F, 0x4A, 0x49, 0xDE, 0xDC, 0xB2 ),
-    BYTES_TO_T_UINT_8( 0x11, 0x81, 0x1F, 0x88, 0x5B, 0xC5, 0x00, 0xA0 ),
-    BYTES_TO_T_UINT_8( 0x1A, 0x7B, 0xA5, 0x24, 0x00, 0xF7, 0x09, 0xF2 ),
-    BYTES_TO_T_UINT_8( 0xFD, 0x22, 0x78, 0xCF, 0xA9, 0xBF, 0xEA, 0xC0 ),
-    BYTES_TO_T_UINT_8( 0xEC, 0x32, 0x63, 0x56, 0x5D, 0x38, 0xDE, 0x7D ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x92, 0x08, 0xD8, 0x3A, 0x0F, 0x1E, 0xCD, 0x78 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x06, 0x54, 0xF0, 0xA8, 0x2F, 0x2B, 0xCA, 0xD1 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xAE, 0x63, 0x27, 0x8A, 0xD8, 0x4B, 0xCA, 0x5B ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x5E, 0x48, 0x5F, 0x4A, 0x49, 0xDE, 0xDC, 0xB2 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x11, 0x81, 0x1F, 0x88, 0x5B, 0xC5, 0x00, 0xA0 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x1A, 0x7B, 0xA5, 0x24, 0x00, 0xF7, 0x09, 0xF2 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xFD, 0x22, 0x78, 0xCF, 0xA9, 0xBF, 0xEA, 0xC0 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xEC, 0x32, 0x63, 0x56, 0x5D, 0x38, 0xDE, 0x7D ),
 };
 static const mbedtls_mpi_uint brainpoolP512r1_n[] = {
-    BYTES_TO_T_UINT_8( 0x69, 0x00, 0xA9, 0x9C, 0x82, 0x96, 0x87, 0xB5 ),
-    BYTES_TO_T_UINT_8( 0xDD, 0xDA, 0x5D, 0x08, 0x81, 0xD3, 0xB1, 0x1D ),
-    BYTES_TO_T_UINT_8( 0x47, 0x10, 0xAC, 0x7F, 0x19, 0x61, 0x86, 0x41 ),
-    BYTES_TO_T_UINT_8( 0x19, 0x26, 0xA9, 0x4C, 0x41, 0x5C, 0x3E, 0x55 ),
-    BYTES_TO_T_UINT_8( 0x70, 0x08, 0x33, 0x70, 0xCA, 0x9C, 0x63, 0xD6 ),
-    BYTES_TO_T_UINT_8( 0x0E, 0xD2, 0xC9, 0xB3, 0xB3, 0x8D, 0x30, 0xCB ),
-    BYTES_TO_T_UINT_8( 0x07, 0xFC, 0xC9, 0x33, 0xAE, 0xE6, 0xD4, 0x3F ),
-    BYTES_TO_T_UINT_8( 0x8B, 0xC4, 0xE9, 0xDB, 0xB8, 0x9D, 0xDD, 0xAA ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x69, 0x00, 0xA9, 0x9C, 0x82, 0x96, 0x87, 0xB5 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0xDD, 0xDA, 0x5D, 0x08, 0x81, 0xD3, 0xB1, 0x1D ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x47, 0x10, 0xAC, 0x7F, 0x19, 0x61, 0x86, 0x41 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x19, 0x26, 0xA9, 0x4C, 0x41, 0x5C, 0x3E, 0x55 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x70, 0x08, 0x33, 0x70, 0xCA, 0x9C, 0x63, 0xD6 ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x0E, 0xD2, 0xC9, 0xB3, 0xB3, 0x8D, 0x30, 0xCB ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x07, 0xFC, 0xC9, 0x33, 0xAE, 0xE6, 0xD4, 0x3F ),
+    MBEDTLS_BYTES_TO_T_UINT_8( 0x8B, 0xC4, 0xE9, 0xDB, 0xB8, 0x9D, 0xDD, 0xAA ),
 };
 #endif /* MBEDTLS_ECP_DP_BP512R1_ENABLED */
 
@@ -680,6 +647,13 @@ static int ecp_mod_p256k1( mbedtls_mpi * );
 #endif /* ECP_LOAD_GROUP */
 
 #if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED)
+/* Constants used by ecp_use_curve25519() */
+static const mbedtls_mpi_sint curve25519_a24 = 0x01DB42;
+static const unsigned char curve25519_part_of_n[] = {
+    0x14, 0xDE, 0xF9, 0xDE, 0xA2, 0xF7, 0x9C, 0xD6,
+    0x58, 0x12, 0x63, 0x1A, 0x5C, 0xF5, 0xD3, 0xED,
+};
+
 /*
  * Specialized function for creating the Curve25519 group
  */
@@ -688,7 +662,7 @@ static int ecp_use_curve25519( mbedtls_ecp_group *grp )
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
     /* Actually ( A + 2 ) / 4 */
-    MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &grp->A, 16, "01DB42" ) );
+    MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &grp->A, curve25519_a24 ) );
 
     /* P = 2^255 - 19 */
     MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &grp->P, 1 ) );
@@ -697,8 +671,8 @@ static int ecp_use_curve25519( mbedtls_ecp_group *grp )
     grp->pbits = mbedtls_mpi_bitlen( &grp->P );
 
     /* N = 2^252 + 27742317777372353535851937790883648493 */
-    MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &grp->N, 16,
-                                              "14DEF9DEA2F79CD65812631A5CF5D3ED" ) );
+    MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &grp->N,
+                     curve25519_part_of_n, sizeof( curve25519_part_of_n ) ) );
     MBEDTLS_MPI_CHK( mbedtls_mpi_set_bit( &grp->N, 252, 1 ) );
 
     /* Y intentionally not set, since we use x/z coordinates.
@@ -719,6 +693,15 @@ cleanup:
 #endif /* MBEDTLS_ECP_DP_CURVE25519_ENABLED */
 
 #if defined(MBEDTLS_ECP_DP_CURVE448_ENABLED)
+/* Constants used by ecp_use_curve448() */
+static const mbedtls_mpi_sint curve448_a24 = 0x98AA;
+static const unsigned char curve448_part_of_n[] = {
+    0x83, 0x35, 0xDC, 0x16, 0x3B, 0xB1, 0x24,
+    0xB6, 0x51, 0x29, 0xC9, 0x6F, 0xDE, 0x93,
+    0x3D, 0x8D, 0x72, 0x3A, 0x70, 0xAA, 0xDC,
+    0x87, 0x3D, 0x6D, 0x54, 0xA7, 0xBB, 0x0D,
+};
+
 /*
  * Specialized function for creating the Curve448 group
  */
@@ -730,7 +713,7 @@ static int ecp_use_curve448( mbedtls_ecp_group *grp )
     mbedtls_mpi_init( &Ns );
 
     /* Actually ( A + 2 ) / 4 */
-    MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &grp->A, 16, "98AA" ) );
+    MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &grp->A, curve448_a24 ) );
 
     /* P = 2^448 - 2^224 - 1 */
     MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &grp->P, 1 ) );
@@ -748,8 +731,8 @@ static int ecp_use_curve448( mbedtls_ecp_group *grp )
 
     /* N = 2^446 - 13818066809895115352007386748515426880336692474882178609894547503885 */
     MBEDTLS_MPI_CHK( mbedtls_mpi_set_bit( &grp->N, 446, 1 ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &Ns, 16,
-                                              "8335DC163BB124B65129C96FDE933D8D723A70AADC873D6D54A7BB0D" ) );
+    MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &Ns,
+                        curve448_part_of_n, sizeof( curve448_part_of_n ) ) );
     MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &grp->N, &grp->N, &Ns ) );
 
     /* Actually, the required msb for private keys */
@@ -1446,9 +1429,11 @@ cleanup:
 static int ecp_mod_p192k1( mbedtls_mpi *N )
 {
     static mbedtls_mpi_uint Rp[] = {
-        BYTES_TO_T_UINT_8( 0xC9, 0x11, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00 ) };
+        MBEDTLS_BYTES_TO_T_UINT_8( 0xC9, 0x11, 0x00, 0x00, 0x01, 0x00, 0x00,
+                                   0x00 ) };
 
-    return( ecp_mod_koblitz( N, Rp, 192 / 8 / sizeof( mbedtls_mpi_uint ), 0, 0, 0 ) );
+    return( ecp_mod_koblitz( N, Rp, 192 / 8 / sizeof( mbedtls_mpi_uint ), 0, 0,
+                             0 ) );
 }
 #endif /* MBEDTLS_ECP_DP_SECP192K1_ENABLED */
 
@@ -1460,12 +1445,14 @@ static int ecp_mod_p192k1( mbedtls_mpi *N )
 static int ecp_mod_p224k1( mbedtls_mpi *N )
 {
     static mbedtls_mpi_uint Rp[] = {
-        BYTES_TO_T_UINT_8( 0x93, 0x1A, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00 ) };
+        MBEDTLS_BYTES_TO_T_UINT_8( 0x93, 0x1A, 0x00, 0x00, 0x01, 0x00, 0x00,
+                                   0x00 ) };
 
 #if defined(MBEDTLS_HAVE_INT64)
     return( ecp_mod_koblitz( N, Rp, 4, 1, 32, 0xFFFFFFFF ) );
 #else
-    return( ecp_mod_koblitz( N, Rp, 224 / 8 / sizeof( mbedtls_mpi_uint ), 0, 0, 0 ) );
+    return( ecp_mod_koblitz( N, Rp, 224 / 8 / sizeof( mbedtls_mpi_uint ), 0, 0,
+                             0 ) );
 #endif
 }
 
@@ -1479,8 +1466,10 @@ static int ecp_mod_p224k1( mbedtls_mpi *N )
 static int ecp_mod_p256k1( mbedtls_mpi *N )
 {
     static mbedtls_mpi_uint Rp[] = {
-        BYTES_TO_T_UINT_8( 0xD1, 0x03, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00 ) };
-    return( ecp_mod_koblitz( N, Rp, 256 / 8 / sizeof( mbedtls_mpi_uint ), 0, 0, 0 ) );
+        MBEDTLS_BYTES_TO_T_UINT_8( 0xD1, 0x03, 0x00, 0x00, 0x01, 0x00, 0x00,
+                                   0x00 ) };
+    return( ecp_mod_koblitz( N, Rp, 256 / 8 / sizeof( mbedtls_mpi_uint ), 0, 0,
+                             0 ) );
 }
 #endif /* MBEDTLS_ECP_DP_SECP256K1_ENABLED */
 
diff --git a/tests/suites/test_suite_ecp.data b/tests/suites/test_suite_ecp.data
index 5f92ca4..79912eb 100644
--- a/tests/suites/test_suite_ecp.data
+++ b/tests/suites/test_suite_ecp.data
@@ -36,13 +36,133 @@ ECP curve info #8
 depends_on:MBEDTLS_ECP_DP_SECP192R1_ENABLED
 mbedtls_ecp_curve_info:MBEDTLS_ECP_DP_SECP192R1:19:192:"secp192r1"
 
-ECP check pubkey Montgomery #1 (too big)
+ECP check pubkey Curve25519 #1 (biggest)
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_check_pub:MBEDTLS_ECP_DP_CURVE25519:"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF":"0":"1":0
+
+ECP check pubkey Curve25519 #2 (too big)
 depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
 ecp_check_pub:MBEDTLS_ECP_DP_CURVE25519:"010000000000000000000000000000000000000000000000000000000000000000":"0":"1":MBEDTLS_ERR_ECP_INVALID_KEY
 
-ECP check pubkey Montgomery #2 (biggest)
+ECP check pubkey Curve25519 #3 (DoS big)
 depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
-ecp_check_pub:MBEDTLS_ECP_DP_CURVE25519:"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF":"0":"1":0
+ecp_check_pub:MBEDTLS_ECP_DP_CURVE25519:"0100000000000000000000000000000000000000000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF":"0":"1":MBEDTLS_ERR_ECP_INVALID_KEY
+
+ECP check pubkey Curve25519 y ignored
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_check_pub:MBEDTLS_ECP_DP_CURVE25519:"2":"-1":"1":0
+
+ECP check pubkey Curve25519 z is not 1
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_check_pub:MBEDTLS_ECP_DP_CURVE25519:"2":"0":"2":MBEDTLS_ERR_ECP_INVALID_KEY
+
+ECP check pubkey Curve25519 x negative
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_check_pub:MBEDTLS_ECP_DP_CURVE25519:"-2":"0":"1":MBEDTLS_ERR_ECP_INVALID_KEY
+
+# see https://cr.yp.to/ecdh.html#validate
+ECP check pubkey Curve25519 low-order point #1
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_check_pub:MBEDTLS_ECP_DP_CURVE25519:"0":"0":"1":MBEDTLS_ERR_ECP_INVALID_KEY
+
+# see https://cr.yp.to/ecdh.html#validate
+ECP check pubkey Curve25519 low-order point #2
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_check_pub:MBEDTLS_ECP_DP_CURVE25519:"1":"0":"1":MBEDTLS_ERR_ECP_INVALID_KEY
+
+# see https://cr.yp.to/ecdh.html#validate
+ECP check pubkey Curve25519 low-order point #3 (let's call this u)
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_check_pub:MBEDTLS_ECP_DP_CURVE25519:"b8495f16056286fdb1329ceb8d09da6ac49ff1fae35616aeb8413b7c7aebe0":"0":"1":MBEDTLS_ERR_ECP_INVALID_KEY
+
+# see https://cr.yp.to/ecdh.html#validate
+ECP check pubkey Curve25519 low-order point #4 (let's call this v)
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_check_pub:MBEDTLS_ECP_DP_CURVE25519:"57119fd0dd4e22d8868e1c58c45c44045bef839c55b1d0b1248c50a3bc959c5f":"0":"1":MBEDTLS_ERR_ECP_INVALID_KEY
+
+# see https://cr.yp.to/ecdh.html#validate
+ECP check pubkey Curve25519 low-order point #5 p-1
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_check_pub:MBEDTLS_ECP_DP_CURVE25519:"7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffec":"0":"1":MBEDTLS_ERR_ECP_INVALID_KEY
+
+# see https://cr.yp.to/ecdh.html#validate
+ECP check pubkey Curve25519 low-order point #6 p
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_check_pub:MBEDTLS_ECP_DP_CURVE25519:"7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffed":"0":"1":MBEDTLS_ERR_ECP_INVALID_KEY
+
+# see https://cr.yp.to/ecdh.html#validate
+ECP check pubkey Curve25519 low-order point #7 p+1
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_check_pub:MBEDTLS_ECP_DP_CURVE25519:"7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffee":"0":"1":MBEDTLS_ERR_ECP_INVALID_KEY
+
+# see https://cr.yp.to/ecdh.html#validate
+ECP check pubkey Curve25519 low-order point #8 p+u
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_check_pub:MBEDTLS_ECP_DP_CURVE25519:"80b8495f16056286fdb1329ceb8d09da6ac49ff1fae35616aeb8413b7c7aebcd":"0":"1":MBEDTLS_ERR_ECP_INVALID_KEY
+
+# see https://cr.yp.to/ecdh.html#validate
+ECP check pubkey Curve25519 low-order point #9 p+v
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_check_pub:MBEDTLS_ECP_DP_CURVE25519:"d7119fd0dd4e22d8868e1c58c45c44045bef839c55b1d0b1248c50a3bc959c4c":"0":"1":MBEDTLS_ERR_ECP_INVALID_KEY
+
+# see https://cr.yp.to/ecdh.html#validate
+ECP check pubkey Curve25519 low-order point #10 2p-1
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_check_pub:MBEDTLS_ECP_DP_CURVE25519:"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd9":"0":"1":MBEDTLS_ERR_ECP_INVALID_KEY
+
+# see https://cr.yp.to/ecdh.html#validate
+ECP check pubkey Curve25519 low-order point #11 2p
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_check_pub:MBEDTLS_ECP_DP_CURVE25519:"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffda":"0":"1":MBEDTLS_ERR_ECP_INVALID_KEY
+
+# see https://cr.yp.to/ecdh.html#validate
+ECP check pubkey Curve25519 low-order point #12 2p+1
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_check_pub:MBEDTLS_ECP_DP_CURVE25519:"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffdb":"0":"1":MBEDTLS_ERR_ECP_INVALID_KEY
+
+ECP check pubkey Curve448 #1 (biggest)
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_check_pub:MBEDTLS_ECP_DP_CURVE448:"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF":"0":"1":0
+
+ECP check pubkey Curve448 #2 (too big)
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_check_pub:MBEDTLS_ECP_DP_CURVE448:"01FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF":"0":"1":MBEDTLS_ERR_ECP_INVALID_KEY
+
+ECP check pubkey Curve448 #3 (DoS big)
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_check_pub:MBEDTLS_ECP_DP_CURVE448:"0100000000000000000000000000000000000000000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF":"0":"1":MBEDTLS_ERR_ECP_INVALID_KEY
+
+ECP check pubkey Curve448 y ignored
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_check_pub:MBEDTLS_ECP_DP_CURVE448:"2":"-1":"1":0
+
+ECP check pubkey Curve448 z is not 1
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_check_pub:MBEDTLS_ECP_DP_CURVE448:"2":"0":"2":MBEDTLS_ERR_ECP_INVALID_KEY
+
+ECP check pubkey Curve448 x negative
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_check_pub:MBEDTLS_ECP_DP_CURVE448:"-2":"0":"1":MBEDTLS_ERR_ECP_INVALID_KEY
+
+ECP check pubkey Curve448 low-order point #1
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_check_pub:MBEDTLS_ECP_DP_CURVE448:"0":"0":"1":MBEDTLS_ERR_ECP_INVALID_KEY
+
+ECP check pubkey Curve448 low-order point #2
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_check_pub:MBEDTLS_ECP_DP_CURVE448:"1":"0":"1":MBEDTLS_ERR_ECP_INVALID_KEY
+
+ECP check pubkey Curve448 low-order point #3 p-1
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_check_pub:MBEDTLS_ECP_DP_CURVE448:"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE":"0":"1":MBEDTLS_ERR_ECP_INVALID_KEY
+
+ECP check pubkey Curve448 low-order point #4 p
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_check_pub:MBEDTLS_ECP_DP_CURVE448:"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF":"0":"1":MBEDTLS_ERR_ECP_INVALID_KEY
+
+ECP check pubkey Curve448 low-order point #5 p+1
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_check_pub:MBEDTLS_ECP_DP_CURVE448:"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000000000000000000000000000000000000000000000000000":"0":"1":MBEDTLS_ERR_ECP_INVALID_KEY
 
 ECP check pubkey Koblitz #1 (point not on curve)
 depends_on:MBEDTLS_ECP_DP_SECP224K1_ENABLED
@@ -476,15 +596,15 @@ ecp_test_mul:MBEDTLS_ECP_DP_CURVE25519:"5AC99F33632E5A768DE7E81BF854C27C46E3FBF2
 
 ECP point multiplication Curve25519 (element of order 2: origin) #3
 depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
-ecp_test_mul:MBEDTLS_ECP_DP_CURVE25519:"5AC99F33632E5A768DE7E81BF854C27C46E3FBF2ABBACD29EC4AFF517369C660":"00":"00":"01":"00":"01":"00":MBEDTLS_ERR_MPI_NOT_ACCEPTABLE
+ecp_test_mul:MBEDTLS_ECP_DP_CURVE25519:"5AC99F33632E5A768DE7E81BF854C27C46E3FBF2ABBACD29EC4AFF517369C660":"00":"00":"01":"00":"01":"00":MBEDTLS_ERR_ECP_INVALID_KEY
 
 ECP point multiplication Curve25519 (element of order 4: 1) #4
 depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
-ecp_test_mul:MBEDTLS_ECP_DP_CURVE25519:"5AC99F33632E5A768DE7E81BF854C27C46E3FBF2ABBACD29EC4AFF517369C660":"01":"00":"01":"00":"01":"00":MBEDTLS_ERR_MPI_NOT_ACCEPTABLE
+ecp_test_mul:MBEDTLS_ECP_DP_CURVE25519:"5AC99F33632E5A768DE7E81BF854C27C46E3FBF2ABBACD29EC4AFF517369C660":"01":"00":"01":"00":"01":"00":MBEDTLS_ERR_ECP_INVALID_KEY
 
 ECP point multiplication Curve25519 (element of order 8) #5
 depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
-ecp_test_mul:MBEDTLS_ECP_DP_CURVE25519:"5AC99F33632E5A768DE7E81BF854C27C46E3FBF2ABBACD29EC4AFF517369C660":"B8495F16056286FDB1329CEB8D09DA6AC49FF1FAE35616AEB8413B7C7AEBE0":"00":"01":"00":"01":"00":MBEDTLS_ERR_MPI_NOT_ACCEPTABLE
+ecp_test_mul:MBEDTLS_ECP_DP_CURVE25519:"5AC99F33632E5A768DE7E81BF854C27C46E3FBF2ABBACD29EC4AFF517369C660":"B8495F16056286FDB1329CEB8D09DA6AC49FF1FAE35616AEB8413B7C7AEBE0":"00":"01":"00":"01":"00":MBEDTLS_ERR_ECP_INVALID_KEY
 
 ECP point multiplication rng fail secp256r1
 depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
diff --git a/tests/suites/test_suite_ecp.function b/tests/suites/test_suite_ecp.function
index 063be0f..538c648 100644
--- a/tests/suites/test_suite_ecp.function
+++ b/tests/suites/test_suite_ecp.function
@@ -386,6 +386,8 @@ void mbedtls_ecp_curve_info( int id, int tls_id, int size, char * name )
     TEST_ASSERT( by_id == by_name );
 
     TEST_ASSERT( by_id->bit_size == size );
+    TEST_ASSERT( size <= MBEDTLS_ECP_MAX_BITS );
+    TEST_ASSERT( size <= MBEDTLS_ECP_MAX_BYTES * 8 );
 }
 /* END_CASE */
 
@@ -794,6 +796,7 @@ void ecp_muladd( int id,
     TEST_EQUAL( 0, mbedtls_ecp_point_write_binary(
                     &grp, &R, MBEDTLS_ECP_PF_UNCOMPRESSED,
                     &len, actual_result, sizeof( actual_result ) ) );
+    TEST_ASSERT( len <= MBEDTLS_ECP_MAX_PT_LEN );
 
     ASSERT_COMPARE( expected_result->x, expected_result->len,
                     actual_result, len );
@@ -865,6 +868,7 @@ void ecp_write_binary( int id, char * x, char * y, char * z, int format,
 
     if( ret == 0 )
     {
+        TEST_ASSERT( olen <= MBEDTLS_ECP_MAX_PT_LEN );
         TEST_ASSERT( mbedtls_test_hexcmp( buf, out->x, olen, out->len ) == 0 );
     }
 
diff --git a/tests/suites/test_suite_version.data b/tests/suites/test_suite_version.data
index e4da3d4..9d4ae17 100644
--- a/tests/suites/test_suite_version.data
+++ b/tests/suites/test_suite_version.data
@@ -1,8 +1,8 @@
 Check compiletime library version
-check_compiletime_version:"2.26.0"
+check_compiletime_version:"2.27.0"
 
 Check runtime library version
-check_runtime_version:"2.26.0"
+check_runtime_version:"2.27.0"
 
 Check for MBEDTLS_VERSION_C
 check_feature:"MBEDTLS_VERSION_C":0