diff options
| author | Rob Austein <sra@hactrn.net> | 2006-10-09 16:47:10 +0000 |
|---|---|---|
| committer | Rob Austein <sra@hactrn.net> | 2006-10-09 16:47:10 +0000 |
| commit | 4043d7db4e466d15193c3bad3b204048fc13b785 (patch) | |
| tree | 8156ce31a6e4a155fc240551f48c23b5a42a6e5e /openssl/trunk/crypto/rsa/rsa_sign.c | |
| parent | aba277548b76071e75fc9478002a6fc2145f64f1 (diff) | |
Merged in changes from OpenSSL 0.9.8d
svn path=/openssl/trunk/CHANGES; revision=377
Diffstat (limited to 'openssl/trunk/crypto/rsa/rsa_sign.c')
| -rw-r--r-- | openssl/trunk/crypto/rsa/rsa_sign.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/openssl/trunk/crypto/rsa/rsa_sign.c b/openssl/trunk/crypto/rsa/rsa_sign.c index 230ec6d7..71aabeea 100644 --- a/openssl/trunk/crypto/rsa/rsa_sign.c +++ b/openssl/trunk/crypto/rsa/rsa_sign.c @@ -185,6 +185,23 @@ int RSA_verify(int dtype, const unsigned char *m, unsigned int m_len, sig=d2i_X509_SIG(NULL,&p,(long)i); if (sig == NULL) goto err; + + /* Excess data can be used to create forgeries */ + if(p != s+i) + { + RSAerr(RSA_F_RSA_VERIFY,RSA_R_BAD_SIGNATURE); + goto err; + } + + /* Parameters to the signature algorithm can also be used to + create forgeries */ + if(sig->algor->parameter + && ASN1_TYPE_get(sig->algor->parameter) != V_ASN1_NULL) + { + RSAerr(RSA_F_RSA_VERIFY,RSA_R_BAD_SIGNATURE); + goto err; + } + sigtype=OBJ_obj2nid(sig->algor->algorithm); |