diff options
| -rw-r--r-- | crypto/ec/ec_lib.c | 5 | ||||
| -rw-r--r-- | doc/man3/EC_GROUP_copy.pod | 5 | ||||
| -rw-r--r-- | include/openssl/ec.h | 6 | ||||
| -rw-r--r-- | test/ectest.c | 38 | ||||
| -rw-r--r-- | util/libcrypto.num | 1 |
5 files changed, 54 insertions, 1 deletions
diff --git a/crypto/ec/ec_lib.c b/crypto/ec/ec_lib.c index c14d1a1..2623b53 100644 --- a/crypto/ec/ec_lib.c +++ b/crypto/ec/ec_lib.c @@ -364,6 +364,11 @@ int EC_GROUP_get_curve_name(const EC_GROUP *group) return group->curve_name; } +const BIGNUM *EC_GROUP_get0_field(const EC_GROUP *group) +{ + return group->field; +} + void EC_GROUP_set_asn1_flag(EC_GROUP *group, int flag) { group->asn1_flag = flag; diff --git a/doc/man3/EC_GROUP_copy.pod b/doc/man3/EC_GROUP_copy.pod index 453825a..3f7108d 100644 --- a/doc/man3/EC_GROUP_copy.pod +++ b/doc/man3/EC_GROUP_copy.pod @@ -11,7 +11,7 @@ EC_GROUP_get_point_conversion_form, EC_GROUP_get0_seed, EC_GROUP_get_seed_len, EC_GROUP_set_seed, EC_GROUP_get_degree, EC_GROUP_check, EC_GROUP_check_discriminant, EC_GROUP_cmp, EC_GROUP_get_basis_type, EC_GROUP_get_trinomial_basis, -EC_GROUP_get_pentanomial_basis +EC_GROUP_get_pentanomial_basis, EC_GROUP_get0_field - Functions for manipulating EC_GROUP objects =head1 SYNOPSIS @@ -32,6 +32,7 @@ EC_GROUP_get_pentanomial_basis int EC_GROUP_order_bits(const EC_GROUP *group); int EC_GROUP_get_cofactor(const EC_GROUP *group, BIGNUM *cofactor, BN_CTX *ctx); const BIGNUM *EC_GROUP_get0_cofactor(const EC_GROUP *group); + const BIGNUM *EC_GROUP_get0_field(const EC_GROUP *group); void EC_GROUP_set_curve_name(EC_GROUP *group, int nid); int EC_GROUP_get_curve_name(const EC_GROUP *group); @@ -177,6 +178,8 @@ specified curve respectively. If there is no curve name associated with a curve EC_GROUP_get0_order() returns an internal pointer to the group order. EC_GROUP_order_bits() returns the number of bits in the group order. EC_GROUP_get0_cofactor() returns an internal pointer to the group cofactor. +EC_GROUP_get0_field() returns an internal pointer to the group field. For curves over GF(p), this is the modulus; for curves +over GF(2^m), this is the irreducible polynomial defining the field. EC_GROUP_get0_seed returns a pointer to the seed that was used to generate the parameter b, or NULL if the seed is not specified. EC_GROUP_get_seed_len returns the length of the seed or 0 if the seed is not specified. diff --git a/include/openssl/ec.h b/include/openssl/ec.h index 4afaad4..7c15368 100644 --- a/include/openssl/ec.h +++ b/include/openssl/ec.h @@ -212,6 +212,12 @@ void EC_GROUP_set_curve_name(EC_GROUP *group, int nid); */ int EC_GROUP_get_curve_name(const EC_GROUP *group); +/** Gets the field of an EC_GROUP + * \param group EC_GROUP object + * \return the group field + */ +const BIGNUM *EC_GROUP_get0_field(const EC_GROUP *group); + void EC_GROUP_set_asn1_flag(EC_GROUP *group, int flag); int EC_GROUP_get_asn1_flag(const EC_GROUP *group); diff --git a/test/ectest.c b/test/ectest.c index cdfaeb6..0f42597 100644 --- a/test/ectest.c +++ b/test/ectest.c @@ -1159,6 +1159,43 @@ static int internal_curve_test_method(int n) return r; } +static int group_field_test(void) +{ + int r = 1; + BIGNUM *secp521r1_field = NULL; + BIGNUM *sect163r2_field = NULL; + EC_GROUP *secp521r1_group = NULL; + EC_GROUP *sect163r2_group = NULL; + + BN_hex2bn(&secp521r1_field, + "01FFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" + "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" + "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" + "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" + "FFFF"); + + + BN_hex2bn(§163r2_field, + "08000000000000000000000000000000" + "00000000C9"); + + secp521r1_group = EC_GROUP_new_by_curve_name(NID_secp521r1); + if (BN_cmp(secp521r1_field, EC_GROUP_get0_field(secp521r1_group))) + r = 0; + + # ifndef OPENSSL_NO_EC2M + sect163r2_group = EC_GROUP_new_by_curve_name(NID_sect163r2); + if (BN_cmp(sect163r2_field, EC_GROUP_get0_field(sect163r2_group))) + r = 0; + # endif + + EC_GROUP_free(secp521r1_group); + EC_GROUP_free(sect163r2_group); + BN_free(secp521r1_field); + BN_free(sect163r2_field); + return r; +} + # ifndef OPENSSL_NO_EC_NISTP_64_GCC_128 /* * nistp_test_params contains magic numbers for testing our optimized @@ -1513,6 +1550,7 @@ int setup_tests(void) # endif ADD_ALL_TESTS(internal_curve_test, crv_len); ADD_ALL_TESTS(internal_curve_test_method, crv_len); + ADD_TEST(group_field_test); #endif return 1; } diff --git a/util/libcrypto.num b/util/libcrypto.num index 2b5365e..b262bc7 100644 --- a/util/libcrypto.num +++ b/util/libcrypto.num @@ -4639,3 +4639,4 @@ EVP_KDF_vctrl 4594 3_0_0 EXIST::FUNCTION: EVP_KDF_ctrl_str 4595 3_0_0 EXIST::FUNCTION: EVP_KDF_size 4596 3_0_0 EXIST::FUNCTION: EVP_KDF_derive 4597 3_0_0 EXIST::FUNCTION: +EC_GROUP_get0_field 4598 3_0_0 EXIST::FUNCTION:EC |