diff options
Diffstat (limited to 'cipher/ecc-eddsa.c')
| -rw-r--r-- | cipher/ecc-eddsa.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/cipher/ecc-eddsa.c b/cipher/ecc-eddsa.c index a12ebab3..4323d8ef 100644 --- a/cipher/ecc-eddsa.c +++ b/cipher/ecc-eddsa.c @@ -465,15 +465,28 @@ _gcry_ecc_eddsa_compute_h_d (unsigned char **r_digest, } -/* Ed25519 version of the key generation. */ +/** + * _gcry_ecc_eddsa_genkey - EdDSA version of the key generation. + * + * @sk: A struct to receive the secret key. + * @E: Parameters of the curve. + * @ctx: Elliptic curve computation context. + * @flags: Flags controlling aspects of the creation. + * + * Return: An error code. + * + * The only @flags bit used by this function is %PUBKEY_FLAG_TRANSIENT + * to use a faster RNG. + */ gpg_err_code_t _gcry_ecc_eddsa_genkey (ECC_secret_key *sk, elliptic_curve_t *E, mpi_ec_t ctx, - gcry_random_level_t random_level) + int flags) { gpg_err_code_t rc; int b = 256/8; /* The only size we currently support. */ gcry_mpi_t a, x, y; mpi_point_struct Q; + gcry_random_level_t random_level; char *dbuf; size_t dlen; gcry_buffer_t hvec[1]; @@ -482,6 +495,11 @@ _gcry_ecc_eddsa_genkey (ECC_secret_key *sk, elliptic_curve_t *E, mpi_ec_t ctx, point_init (&Q); memset (hvec, 0, sizeof hvec); + if ((flags & PUBKEY_FLAG_TRANSIENT_KEY)) + random_level = GCRY_STRONG_RANDOM; + else + random_level = GCRY_VERY_STRONG_RANDOM; + a = mpi_snew (0); x = mpi_new (0); y = mpi_new (0); |