1 files changed, 228 insertions, 0 deletions

diff --git a/src/lib/libcrypto/rsa/rsa_sign.c b/src/lib/libcrypto/rsa/rsa_sign.c
new file mode 100644
index 0000000000..2a440901de
--- /dev/null
+++ b/src/lib/libcrypto/rsa/rsa_sign.c
@@ -0,0 +1,228 @@
+/* crypto/rsa/rsa_sign.c */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ * 
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ * 
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from 
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ * 
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * 
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#include <stdio.h>
+#include "cryptlib.h"
+#include <openssl/bn.h>
+#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
+
+int RSA_sign(int type, const unsigned char *m, unsigned int m_len,
+             unsigned char *sigret, unsigned int *siglen, RSA *rsa)
+        {
+        X509_SIG sig;
+        ASN1_TYPE parameter;
+        int i,j,ret=1;
+        unsigned char *p, *tmps = NULL;
+        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);
+        /* Special case: SSL signature, just check the length */
+        if(type == NID_md5_sha1) {
+                if(m_len != SSL_SIG_LENGTH) {
+                        RSAerr(RSA_F_RSA_SIGN,RSA_R_INVALID_MESSAGE_LENGTH);
+                        return(0);
+                }
+                i = SSL_SIG_LENGTH;
+                s = m;
+        } else {
+                sig.algor= &algor;
+                sig.algor->algorithm=OBJ_nid2obj(type);
+                if (sig.algor->algorithm == NULL)
+                        {
+                        RSAerr(RSA_F_RSA_SIGN,RSA_R_UNKNOWN_ALGORITHM_TYPE);
+                        return(0);
+                        }
+                if (sig.algor->algorithm->length == 0)
+                        {
+                        RSAerr(RSA_F_RSA_SIGN,RSA_R_THE_ASN1_OBJECT_IDENTIFIER_IS_NOT_KNOWN_FOR_THIS_MD);
+                        return(0);
+                        }
+                parameter.type=V_ASN1_NULL;
+                parameter.value.ptr=NULL;
+                sig.algor->parameter= &parameter;
+
+                sig.digest= &digest;
+                sig.digest->data=(unsigned char *)m; /* TMP UGLY CAST */
+                sig.digest->length=m_len;
+
+                i=i2d_X509_SIG(&sig,NULL);
+        }
+        j=RSA_size(rsa);
+        if ((i-RSA_PKCS1_PADDING) > j)
+                {
+                RSAerr(RSA_F_RSA_SIGN,RSA_R_DIGEST_TOO_BIG_FOR_RSA_KEY);
+                return(0);
+                }
+        if(type != NID_md5_sha1) {
+                tmps=(unsigned char *)OPENSSL_malloc((unsigned int)j+1);
+                if (tmps == NULL)
+                        {
+                        RSAerr(RSA_F_RSA_SIGN,ERR_R_MALLOC_FAILURE);
+                        return(0);
+                        }
+                p=tmps;
+                i2d_X509_SIG(&sig,&p);
+                s=tmps;
+        }
+        i=RSA_private_encrypt(i,s,sigret,rsa,RSA_PKCS1_PADDING);
+        if (i <= 0)
+                ret=0;
+        else
+                *siglen=i;
+
+        if(type != NID_md5_sha1) {
+                memset(tmps,0,(unsigned int)j+1);
+                OPENSSL_free(tmps);
+        }
+        return(ret);
+        }
+
+int RSA_verify(int dtype, const unsigned char *m, unsigned int m_len,
+             unsigned char *sigbuf, unsigned int siglen, RSA *rsa)
+        {
+        int i,ret=0,sigtype;
+        unsigned char *p,*s;
+        X509_SIG *sig=NULL;
+
+        if (siglen != (unsigned int)RSA_size(rsa))
+                {
+                RSAerr(RSA_F_RSA_VERIFY,RSA_R_WRONG_SIGNATURE_LENGTH);
+                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);
+
+        s=(unsigned char *)OPENSSL_malloc((unsigned int)siglen);
+        if (s == NULL)
+                {
+                RSAerr(RSA_F_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);
+                        return(0);
+        }
+        i=RSA_public_decrypt((int)siglen,sigbuf,s,rsa,RSA_PKCS1_PADDING);
+
+        if (i <= 0) goto err;
+
+        /* 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);
+                else ret = 1;
+        } else {
+                p=s;
+                sig=d2i_X509_SIG(NULL,&p,(long)i);
+
+                if (sig == NULL) goto err;
+                sigtype=OBJ_obj2nid(sig->algor->algorithm);
+
+
+        #ifdef RSA_DEBUG
+                /* put a backward compatibility flag in EAY */
+                fprintf(stderr,"in(%s) expect(%s)\n",OBJ_nid2ln(sigtype),
+                        OBJ_nid2ln(dtype));
+        #endif
+                if (sigtype != dtype)
+                        {
+                        if (((dtype == NID_md5) &&
+                                (sigtype == NID_md5WithRSAEncryption)) ||
+                                ((dtype == NID_md2) &&
+                                (sigtype == NID_md2WithRSAEncryption)))
+                                {
+                                /* ok, we will let it through */
+#if !defined(OPENSSL_NO_STDIO) && !defined(OPENSSL_SYS_WIN16)
+                                fprintf(stderr,"signature has problems, re-make with post SSLeay045\n");
+#endif
+                                }
+                        else
+                                {
+                                RSAerr(RSA_F_RSA_VERIFY,
+                                                RSA_R_ALGORITHM_MISMATCH);
+                                goto err;
+                                }
+                        }
+                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);
+                        }
+                else
+                        ret=1;
+        }
+err:
+        if (sig != NULL) X509_SIG_free(sig);
+        memset(s,0,(unsigned int)siglen);
+        OPENSSL_free(s);
+        return(ret);
+        }
+