Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/rsa/rsa_sign.c

Index: openssl/crypto/rsa/rsa_sign.c
diff --git a/openssl/crypto/rsa/rsa_sign.c b/openssl/crypto/rsa/rsa_sign.c
deleted file mode 100644
index b6f6037ae002df06a4fb078e8f8af0a0b6dd2dfb..0000000000000000000000000000000000000000
--- a/openssl/crypto/rsa/rsa_sign.c
+++ /dev/null
@@ -1,318 +0,0 @@
-/* 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 "rsa_locl.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;
-#ifdef OPENSSL_FIPS
-	if (FIPS_mode() && !(rsa->meth->flags & RSA_FLAG_FIPS_METHOD)
-			&& !(rsa->flags & RSA_FLAG_NON_FIPS_ALLOW))
-		{
-		RSAerr(RSA_F_RSA_SIGN, RSA_R_NON_FIPS_RSA_METHOD);
-		return 0;
-		}
-#endif
-	if((rsa->flags & RSA_FLAG_SIGN_VER) && rsa->meth->rsa_sign)
-		{
-		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) {
-			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 > (j-RSA_PKCS1_PADDING_SIZE))
-		{
-		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) {
-		OPENSSL_cleanse(tmps,(unsigned int)j+1);
-		OPENSSL_free(tmps);
-	}
-	return(ret);
-	}
-
-int int_rsa_verify(int dtype, const unsigned char *m,
-			  unsigned int m_len,
-			  unsigned char *rm, size_t *prm_len,
-			  const unsigned char *sigbuf, size_t siglen,
-			  RSA *rsa)
-	{
-	int i,ret=0,sigtype;
-	unsigned char *s;
-	X509_SIG *sig=NULL;
-
-#ifdef OPENSSL_FIPS
-	if (FIPS_mode() && !(rsa->meth->flags & RSA_FLAG_FIPS_METHOD)
-			&& !(rsa->flags & RSA_FLAG_NON_FIPS_ALLOW))
-		{
-		RSAerr(RSA_F_INT_RSA_VERIFY, RSA_R_NON_FIPS_RSA_METHOD);
-		return 0;
-		}
-#endif
-
-	if (siglen != (unsigned int)RSA_size(rsa))
-		{
-		RSAerr(RSA_F_INT_RSA_VERIFY,RSA_R_WRONG_SIGNATURE_LENGTH);
-		return(0);
-		}
-
-	if((dtype == NID_md5_sha1) && rm)
-		{
-		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_INT_RSA_VERIFY,ERR_R_MALLOC_FAILURE);
-		goto err;
-		}
-	if((dtype == NID_md5_sha1) && (m_len != SSL_SIG_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);
-
-	if (i <= 0) goto err;
-	/* Oddball MDC2 case: signature can be OCTET STRING.
-	 * check for correct tag and length octets.
-	 */
-	if (dtype == NID_mdc2 && i == 18 && s[0] == 0x04 && s[1] == 0x10)
-		{
-		if (rm)
-			{
-			memcpy(rm, s + 2, 16);
-			*prm_len = 16;
-			ret = 1;
-			}
-		else if(memcmp(m, s + 2, 16))
-			RSAerr(RSA_F_INT_RSA_VERIFY,RSA_R_BAD_SIGNATURE);
-		else
-			ret = 1;
-		}
-
-	/* Special case: SSL signature */
-	if(dtype == NID_md5_sha1) {
-		if((i != SSL_SIG_LENGTH) || memcmp(s, m, SSL_SIG_LENGTH))
-				RSAerr(RSA_F_INT_RSA_VERIFY,RSA_R_BAD_SIGNATURE);
-		else ret = 1;
-	} else {
-		const unsigned char *p=s;
-		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_INT_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_INT_RSA_VERIFY,RSA_R_BAD_SIGNATURE);
-			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_INT_RSA_VERIFY,
-						RSA_R_ALGORITHM_MISMATCH);
-				goto err;
-				}
-			}
-		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_INT_RSA_VERIFY,RSA_R_BAD_SIGNATURE);
-			}
-		else
-			ret=1;
-	}
-err:
-	if (sig != NULL) X509_SIG_free(sig);
-	if (s != NULL)
-		{
-		OPENSSL_cleanse(s,(unsigned int)siglen);
-		OPENSSL_free(s);
-		}
-	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);
-	}