diff options
| -rw-r--r-- | crypto/block-luks.c | 2 | ||||
| -rw-r--r-- | crypto/pbkdf.c | 10 | ||||
| -rw-r--r-- | include/crypto/pbkdf.h | 6 | ||||
| -rw-r--r-- | tests/test-crypto-pbkdf.c | 1 |
4 files changed, 15 insertions, 4 deletions
diff --git a/crypto/block-luks.c b/crypto/block-luks.c index 91a4172..9269aaf 100644 --- a/crypto/block-luks.c +++ b/crypto/block-luks.c @@ -1072,6 +1072,7 @@ qcrypto_block_luks_create(QCryptoBlock *block, masterkey, luks->header.key_bytes, luks->header.master_key_salt, QCRYPTO_BLOCK_LUKS_SALT_LEN, + QCRYPTO_BLOCK_LUKS_DIGEST_LEN, &local_err); if (local_err) { error_propagate(errp, local_err); @@ -1152,6 +1153,7 @@ qcrypto_block_luks_create(QCryptoBlock *block, (uint8_t *)password, strlen(password), luks->header.key_slots[0].salt, QCRYPTO_BLOCK_LUKS_SALT_LEN, + luks->header.key_bytes, &local_err); if (local_err) { error_propagate(errp, local_err); diff --git a/crypto/pbkdf.c b/crypto/pbkdf.c index e391505..f22e71d 100644 --- a/crypto/pbkdf.c +++ b/crypto/pbkdf.c @@ -65,13 +65,16 @@ static int qcrypto_pbkdf2_get_thread_cpu(unsigned long long *val_ms, uint64_t qcrypto_pbkdf2_count_iters(QCryptoHashAlgorithm hash, const uint8_t *key, size_t nkey, const uint8_t *salt, size_t nsalt, + size_t nout, Error **errp) { uint64_t ret = -1; - uint8_t out[32]; + uint8_t *out; uint64_t iterations = (1 << 15); unsigned long long delta_ms, start_ms, end_ms; + out = g_new(uint8_t, nout); + while (1) { if (qcrypto_pbkdf2_get_thread_cpu(&start_ms, errp) < 0) { goto cleanup; @@ -80,7 +83,7 @@ uint64_t qcrypto_pbkdf2_count_iters(QCryptoHashAlgorithm hash, key, nkey, salt, nsalt, iterations, - out, sizeof(out), + out, nout, errp) < 0) { goto cleanup; } @@ -104,6 +107,7 @@ uint64_t qcrypto_pbkdf2_count_iters(QCryptoHashAlgorithm hash, ret = iterations; cleanup: - memset(out, 0, sizeof(out)); + memset(out, 0, nout); + g_free(out); return ret; } diff --git a/include/crypto/pbkdf.h b/include/crypto/pbkdf.h index 6f4ac85..ef209b3 100644 --- a/include/crypto/pbkdf.h +++ b/include/crypto/pbkdf.h @@ -133,6 +133,7 @@ int qcrypto_pbkdf2(QCryptoHashAlgorithm hash, * @nkey: the length of @key in bytes * @salt: a random salt * @nsalt: length of @salt in bytes + * @nout: size of desired derived key * @errp: pointer to a NULL-initialized error object * * Time the PBKDF2 algorithm to determine how many @@ -140,13 +141,16 @@ int qcrypto_pbkdf2(QCryptoHashAlgorithm hash, * key from a user password provided in @key in 1 * second of compute time. The result of this can * be used as a the @iterations parameter of a later - * call to qcrypto_pbkdf2(). + * call to qcrypto_pbkdf2(). The value of @nout should + * match that value that will later be provided with + * a call to qcrypto_pbkdf2(). * * Returns: number of iterations in 1 second, -1 on error */ uint64_t qcrypto_pbkdf2_count_iters(QCryptoHashAlgorithm hash, const uint8_t *key, size_t nkey, const uint8_t *salt, size_t nsalt, + size_t nout, Error **errp); #endif /* QCRYPTO_PBKDF_H */ diff --git a/tests/test-crypto-pbkdf.c b/tests/test-crypto-pbkdf.c index 8ceceb1..a651dc5 100644 --- a/tests/test-crypto-pbkdf.c +++ b/tests/test-crypto-pbkdf.c @@ -358,6 +358,7 @@ static void test_pbkdf_timing(void) iters = qcrypto_pbkdf2_count_iters(QCRYPTO_HASH_ALG_SHA256, key, sizeof(key), salt, sizeof(salt), + 32, &error_abort); g_assert(iters >= (1 << 15)); |