Make things static that should be. Declare stuff in headers that should be.

[openssl.git] / crypto / rsa / rsa_sign.c

diff --git a/crypto/rsa/rsa_sign.c b/crypto/rsa/rsa_sign.c
index 230ec6d7ea2a981ead6a4a8fa45d1f38128298e5..e5a015d1a66efea4c19a064b6198b9927e7e2200 100644 (file)
--- a/crypto/rsa/rsa_sign.c
+++ b/crypto/rsa/rsa_sign.c
@@ -62,6 +62,7 @@
 #include <openssl/rsa.h>
 #include <openssl/objects.h>
 #include <openssl/x509.h>
+#include "rsa_locl.h"
 
 /* Size of an SSL signature: MD5+SHA1 */
 #define SSL_SIG_LENGTH 36
@@ -142,8 +143,11 @@ int RSA_sign(int type, const unsigned char *m, unsigned int m_len,
        return(ret);
        }
 
-int RSA_verify(int dtype, const unsigned char *m, unsigned int m_len,
-            unsigned char *sigbuf, unsigned int siglen, RSA *rsa)
+int int_rsa_verify(int dtype, const unsigned char *m,
+                         unsigned int m_len,
+                         unsigned char *rm, unsigned int *prm_len,
+                         const unsigned char *sigbuf, unsigned int siglen,
+                         RSA *rsa)
        {
        int i,ret=0,sigtype;
        unsigned char *s;
@@ -151,24 +155,28 @@ int RSA_verify(int dtype, const unsigned char *m, unsigned int m_len,
 
        if (siglen != (unsigned int)RSA_size(rsa))
                {
-               RSAerr(RSA_F_RSA_VERIFY,RSA_R_WRONG_SIGNATURE_LENGTH);
+               RSAerr(RSA_F_INT_RSA_VERIFY,RSA_R_WRONG_SIGNATURE_LENGTH);
                return(0);
                }
 
-       if((rsa->flags & RSA_FLAG_SIGN_VER) && rsa->meth->rsa_verify)
+       if((dtype == NID_md5_sha1) && rm)
                {
-               return rsa->meth->rsa_verify(dtype, m, m_len,
-                       sigbuf, siglen, rsa);
+               i = RSA_public_decrypt((int)siglen,
+                                       sigbuf,rm,rsa,RSA_PKCS1_PADDING);
+               if (i <= 0)
+                       return 0;
+               *prm_len = i;
+               return 1;
                }
 
        s=(unsigned char *)OPENSSL_malloc((unsigned int)siglen);
        if (s == NULL)
                {
-               RSAerr(RSA_F_RSA_VERIFY,ERR_R_MALLOC_FAILURE);
+               RSAerr(RSA_F_INT_RSA_VERIFY,ERR_R_MALLOC_FAILURE);
                goto err;
                }
        if((dtype == NID_md5_sha1) && (m_len != SSL_SIG_LENGTH) ) {
-                       RSAerr(RSA_F_RSA_VERIFY,RSA_R_INVALID_MESSAGE_LENGTH);
+                       RSAerr(RSA_F_INT_RSA_VERIFY,RSA_R_INVALID_MESSAGE_LENGTH);
                        goto err;
        }
        i=RSA_public_decrypt((int)siglen,sigbuf,s,rsa,RSA_PKCS1_PADDING);
@@ -178,7 +186,7 @@ int RSA_verify(int dtype, const unsigned char *m, unsigned int m_len,
        /* Special case: SSL signature */
        if(dtype == NID_md5_sha1) {
                if((i != SSL_SIG_LENGTH) || memcmp(s, m, SSL_SIG_LENGTH))
-                               RSAerr(RSA_F_RSA_VERIFY,RSA_R_BAD_SIGNATURE);
+                               RSAerr(RSA_F_INT_RSA_VERIFY,RSA_R_BAD_SIGNATURE);
                else ret = 1;
        } else {
                const unsigned char *p=s;
@@ -207,15 +215,30 @@ int RSA_verify(int dtype, const unsigned char *m, unsigned int m_len,
                                }
                        else
                                {
-                               RSAerr(RSA_F_RSA_VERIFY,
+                               RSAerr(RSA_F_INT_RSA_VERIFY,
                                                RSA_R_ALGORITHM_MISMATCH);
                                goto err;
                                }
                        }
-               if (    ((unsigned int)sig->digest->length != m_len) ||
+               if (rm)
+                       {
+                       const EVP_MD *md;
+                       md = EVP_get_digestbynid(dtype);
+                       if (md && (EVP_MD_size(md) != sig->digest->length))
+                               RSAerr(RSA_F_INT_RSA_VERIFY,
+                                               RSA_R_INVALID_DIGEST_LENGTH);
+                       else
+                               {
+                               memcpy(rm, sig->digest->data,
+                                                       sig->digest->length);
+                               *prm_len = sig->digest->length;
+                               ret = 1;
+                               }
+                       }
+               else if (((unsigned int)sig->digest->length != m_len) ||
                        (memcmp(m,sig->digest->data,m_len) != 0))
                        {
-                       RSAerr(RSA_F_RSA_VERIFY,RSA_R_BAD_SIGNATURE);
+                       RSAerr(RSA_F_INT_RSA_VERIFY,RSA_R_BAD_SIGNATURE);
                        }
                else
                        ret=1;
@@ -230,3 +253,16 @@ err:
        return(ret);
        }
 
+int RSA_verify(int dtype, const unsigned char *m, unsigned int m_len,
+               const unsigned char *sigbuf, unsigned int siglen,
+               RSA *rsa)
+       {
+
+       if((rsa->flags & RSA_FLAG_SIGN_VER) && rsa->meth->rsa_verify)
+               {
+               return rsa->meth->rsa_verify(dtype, m, m_len,
+                       sigbuf, siglen, rsa);
+               }
+
+       return int_rsa_verify(dtype, m, m_len, NULL, NULL, sigbuf, siglen, rsa);
+       }