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Only call redirected rsa_sign or rsa_verify if the pointer is set.

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This allows, for example, a smart card to redirect rsa_sign and keep
the default rsa_verify.
This commit is contained in:
Dr. Stephen Henson
2003-04-10 01:13:37 +00:00
parent 75fcbb43a7
commit 88ec5a637f
1 changed files with 2 additions and 2 deletions
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4
crypto/rsa/rsa_sign.c
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@@ -76,7 +76,7 @@ int RSA_sign(int type, const unsigned char *m, unsigned int m_len,
const unsigned char *s = NULL; const unsigned char *s = NULL;
X509_ALGOR algor; X509_ALGOR algor;
ASN1_OCTET_STRING digest; ASN1_OCTET_STRING digest;
if(rsa->flags & RSA_FLAG_SIGN_VER) if((rsa->flags & RSA_FLAG_SIGN_VER) && rsa->meth->rsa_sign)
{ {
return rsa->meth->rsa_sign(type, m, m_len, return rsa->meth->rsa_sign(type, m, m_len,
sigret, siglen, rsa); sigret, siglen, rsa);
@@ -155,7 +155,7 @@ int RSA_verify(int dtype, const unsigned char *m, unsigned int m_len,
return(0); return(0);
} }
if(rsa->flags & RSA_FLAG_SIGN_VER) if((rsa->flags & RSA_FLAG_SIGN_VER) && rsa->meth->rsa_verify)
{ {
return rsa->meth->rsa_verify(dtype, m, m_len, return rsa->meth->rsa_verify(dtype, m, m_len,
sigbuf, siglen, rsa); sigbuf, siglen, rsa);