diff options
Diffstat (limited to 'include/openssl/ec.h')
| -rw-r--r-- | include/openssl/ec.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/openssl/ec.h b/include/openssl/ec.h index 55f1adf..47ecfca 100644 --- a/include/openssl/ec.h +++ b/include/openssl/ec.h @@ -133,6 +133,15 @@ OPENSSL_EXPORT int EC_GROUP_get_order(const EC_GROUP *group, BIGNUM *order, OPENSSL_EXPORT int EC_GROUP_get_cofactor(const EC_GROUP *group, BIGNUM *cofactor, BN_CTX *ctx); +/* EC_GROUP_get_curve_GFp gets various parameters about a group. It sets + * |*out_p| to the order of the coordinate field and |*out_a| and |*out_b| to + * the parameters of the curve when expressed as y² = x³ + ax + b. Any of the + * output parameters can be NULL. It returns one on success and zero on + * error. */ +OPENSSL_EXPORT int EC_GROUP_get_curve_GFp(const EC_GROUP *group, BIGNUM *out_p, + BIGNUM *out_a, BIGNUM *out_b, + BN_CTX *ctx); + /* EC_GROUP_get_curve_name returns a NID that identifies |group|. */ OPENSSL_EXPORT int EC_GROUP_get_curve_name(const EC_GROUP *group); @@ -351,6 +360,7 @@ OPENSSL_EXPORT int EC_POINTs_mul(const EC_GROUP *group, EC_POINT *r, #define EC_F_EC_KEY_generate_key 155 #define EC_F_ec_GFp_simple_set_compressed_coordinates 156 #define EC_F_EC_POINT_add 157 +#define EC_F_EC_GROUP_get_curve_GFp 158 #define EC_R_PKPARAMETERS2GROUP_FAILURE 100 #define EC_R_NON_NAMED_CURVE 101 #define EC_R_COORDINATES_OUT_OF_RANGE 102 |