diff options
Diffstat (limited to 'src/crypto/ec/ec.c')
| -rw-r--r-- | src/crypto/ec/ec.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/crypto/ec/ec.c b/src/crypto/ec/ec.c index 5e30730..f38eba6 100644 --- a/src/crypto/ec/ec.c +++ b/src/crypto/ec/ec.c @@ -289,6 +289,12 @@ EC_GROUP *EC_GROUP_new_curve_GFp(const BIGNUM *p, const BIGNUM *a, int EC_GROUP_set_generator(EC_GROUP *group, const EC_POINT *generator, const BIGNUM *order, const BIGNUM *cofactor) { + if (group->curve_name != NID_undef) { + /* |EC_GROUP_set_generator| should only be used with |EC_GROUP|s returned + * by |EC_GROUP_new_curve_GFp|. */ + return 0; + } + if (group->generator == NULL) { group->generator = EC_POINT_new(group); if (group->generator == NULL) { |