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| author | Dr. Stephen Henson <steve@openssl.org> | 2016-02-23 15:02:34 +0000 |
|---|---|---|
| committer | Dr. Stephen Henson <steve@openssl.org> | 2016-02-28 22:54:53 +0000 |
| commit | 4b0555ec9d322abec2ddf769387e1228dc9a440b (patch) | |
| tree | 1cb0b0154252da3c40fe13aa6e15b2b3ae91609a /crypto/ec/ec_key.c | |
| parent | 8dcfdbf510085fd5740abe78f1f8ca120b475f05 (diff) | |
| download | openssl-new-4b0555ec9d322abec2ddf769387e1228dc9a440b.tar.gz | |
Add no signing flag.
Add a flag to EC_METHOD for curves which do not support signing.
New function EC_KEY_can_sign() returns 1 is key can be used for signing.
Return an explicit error is an attempt is made to sign with
no signing curves.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Emilia Käsper <emilia@openssl.org>
Diffstat (limited to 'crypto/ec/ec_key.c')
| -rw-r--r-- | crypto/ec/ec_key.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/crypto/ec/ec_key.c b/crypto/ec/ec_key.c index f09edbbc05..e59d2c6d6a 100644 --- a/crypto/ec/ec_key.c +++ b/crypto/ec/ec_key.c @@ -631,3 +631,11 @@ size_t EC_KEY_priv2buf(const EC_KEY *eckey, unsigned char **pbuf) *pbuf = buf; return len; } + +int EC_KEY_can_sign(const EC_KEY *eckey) +{ + if (eckey->group == NULL || eckey->group->meth == NULL + || (eckey->group->meth->flags & EC_FLAGS_NO_SIGN)) + return 0; + return 1; +} |