DO NOT constify RSA* in RSA_sign() and RSA_verify(), since there are function
[openssl.git] / crypto / rsa / rsa_sign.c
index 2a440901de3ee94f76b93ffe0e843a25a50fd222..02eb8136b05a1f70ebbf7552369c4589b60a89f1 100644 (file)
@@ -62,7 +62,6 @@
 #include <openssl/rsa.h>
 #include <openssl/objects.h>
 #include <openssl/x509.h>
-#include <openssl/engine.h>
 
 /* Size of an SSL signature: MD5+SHA1 */
 #define SSL_SIG_LENGTH 36
@@ -77,10 +76,11 @@ int RSA_sign(int type, const unsigned char *m, unsigned int m_len,
        const unsigned char *s = NULL;
        X509_ALGOR algor;
        ASN1_OCTET_STRING digest;
-       if((rsa->flags & RSA_FLAG_SIGN_VER)
-             && ENGINE_get_RSA(rsa->engine)->rsa_sign)
-             return ENGINE_get_RSA(rsa->engine)->rsa_sign(type,
-                       m, m_len, sigret, siglen, rsa);
+       if(rsa->flags & RSA_FLAG_SIGN_VER)
+               {
+               return rsa->meth->rsa_sign(type, m, m_len,
+                       sigret, siglen, rsa);
+               }
        /* Special case: SSL signature, just check the length */
        if(type == NID_md5_sha1) {
                if(m_len != SSL_SIG_LENGTH) {
@@ -113,7 +113,7 @@ int RSA_sign(int type, const unsigned char *m, unsigned int m_len,
                i=i2d_X509_SIG(&sig,NULL);
        }
        j=RSA_size(rsa);
-       if ((i-RSA_PKCS1_PADDING) > j)
+       if (i > (j-RSA_PKCS1_PADDING_SIZE))
                {
                RSAerr(RSA_F_RSA_SIGN,RSA_R_DIGEST_TOO_BIG_FOR_RSA_KEY);
                return(0);
@@ -136,7 +136,7 @@ int RSA_sign(int type, const unsigned char *m, unsigned int m_len,
                *siglen=i;
 
        if(type != NID_md5_sha1) {
-               memset(tmps,0,(unsigned int)j+1);
+               OPENSSL_cleanse(tmps,(unsigned int)j+1);
                OPENSSL_free(tmps);
        }
        return(ret);
@@ -155,10 +155,11 @@ int RSA_verify(int dtype, const unsigned char *m, unsigned int m_len,
                return(0);
                }
 
-       if((rsa->flags & RSA_FLAG_SIGN_VER)
-           && ENGINE_get_RSA(rsa->engine)->rsa_verify)
-           return ENGINE_get_RSA(rsa->engine)->rsa_verify(dtype,
-                       m, m_len, sigbuf, siglen, rsa);
+       if(rsa->flags & RSA_FLAG_SIGN_VER)
+               {
+               return rsa->meth->rsa_verify(dtype, m, m_len,
+                       sigbuf, siglen, rsa);
+               }
 
        s=(unsigned char *)OPENSSL_malloc((unsigned int)siglen);
        if (s == NULL)
@@ -221,7 +222,7 @@ int RSA_verify(int dtype, const unsigned char *m, unsigned int m_len,
        }
 err:
        if (sig != NULL) X509_SIG_free(sig);
-       memset(s,0,(unsigned int)siglen);
+       OPENSSL_cleanse(s,(unsigned int)siglen);
        OPENSSL_free(s);
        return(ret);
        }