diff options
Diffstat (limited to 'crypto/ec/ecdsa_ossl.c')
-rw-r--r-- | crypto/ec/ecdsa_ossl.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/crypto/ec/ecdsa_ossl.c b/crypto/ec/ecdsa_ossl.c index 0da33799e4..d7bd427e1b 100644 --- a/crypto/ec/ecdsa_ossl.c +++ b/crypto/ec/ecdsa_ossl.c @@ -77,6 +77,11 @@ int ossl_ecdsa_sign(int type, const unsigned char *dgst, int dlen, { ECDSA_SIG *s; + if (sig == NULL && (kinv == NULL || r == NULL)) { + *siglen = ECDSA_size(eckey); + return 1; + } + s = ECDSA_do_sign_ex(dgst, dlen, kinv, r, eckey); if (s == NULL) { *siglen = 0; |