Sets the parameters of an ec curve defined by y^2 = x^3 + a*x + b (for GFp) or y^2 + xy = x^3 + ax^2 + b (for GF2m)
Declared in <openssl/ec.h>
int
EC_GROUP_set_curve(
EC_GROUP* group,
BIGNUM const* p,
BIGNUM const* a,
BIGNUM const* b,
BN_CTX* ctx);1 on success and 0 if an error occurred
| Name | Description |
|---|---|
| group | EC_GROUP object |
| p | BIGNUM with the prime number (GFp) or the polynomial defining the underlying field (GF2m) |
| a | BIGNUM with parameter a of the equation |
| b | BIGNUM with parameter b of the equation |
| ctx | BN_CTX object (optional) |