First cut for a very conservative source tree cleanup:

1. merge various obsolete readme texts into doc/ssleay.txt
   where we collect the old documents and readme texts.

2. remove the first part of files where I'm already sure that we no longer need
   them because of three reasons: either they are just temporary files which
   were left by Eric or they are preserved original files where I've verified
   that the diff is also available in the CVS via "cvs diff -rSSLeay_0_8_1b"
   or they were renamed (as it was definitely the case for the crypto/md/
   stuff).

We've still a horrible mess under crypto/bn/asm/.  There for a lot of files
I'm sure whether we need them or not. So, when someone knows it better, feel
free to cleanup there.

1 files changed, 0 insertions, 538 deletions

diff --git a/crypto/rsa/rsa_enc.c b/crypto/rsa/rsa_enc.c
deleted file mode 100644
index c4a4ad5a60..0000000000
--- a/crypto/rsa/rsa_enc.c
+++ /dev/null
@@ -1,538 +0,0 @@
-/* crypto/rsa/rsa_enc.c */
-/* Copyright (C) 1995-1997 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 "bn.h"
-#include "rsa.h"
-#include "rand.h"
-
-#ifndef NOPROTO
-static int RSA_eay_public_encrypt(int flen, unsigned char *from,
-		unsigned char *to, RSA *rsa,int padding);
-static int RSA_eay_private_encrypt(int flen, unsigned char *from,
-		unsigned char *to, RSA *rsa,int padding);
-static int RSA_eay_public_decrypt(int flen, unsigned char *from,
-		unsigned char *to, RSA *rsa,int padding);
-static int RSA_eay_private_decrypt(int flen, unsigned char *from,
-		unsigned char *to, RSA *rsa,int padding);
-static int RSA_eay_mod_exp(BIGNUM *r0, BIGNUM *i, RSA *rsa);
-#else
-static int RSA_eay_public_encrypt();
-static int RSA_eay_private_encrypt();
-static int RSA_eay_public_decrypt();
-static int RSA_eay_private_decrypt();
-static int RSA_eay_mod_exp();
-#endif
-
-static RSA_METHOD rsa_pkcs1_eay_meth={
-	"Eric Young's PKCS#1 RSA",
-	RSA_eay_public_encrypt,
-	RSA_eay_public_decrypt,
-	RSA_eay_private_encrypt,
-	RSA_eay_private_decrypt,
-	RSA_eay_mod_exp,
-	BN_mod_exp,
-	NULL,
-	NULL,
-	};
-
-RSA_METHOD *RSA_PKCS1_SSLeay()
-	{
-	return(&rsa_pkcs1_eay_meth);
-	}
-
-static int RSA_eay_public_encrypt(flen, from, to, rsa, padding)
-int flen;
-unsigned char *from;
-unsigned char *to;
-RSA *rsa;
-int padding;
-	{
-	BIGNUM *f=NULL,*ret=NULL;
-	int i,j,k,num=0,r= -1;
-	unsigned char *p;
-	unsigned char *buf=NULL;
-	BN_CTX *ctx=NULL;
-
-	if (	(padding != RSA_PKCS1_PADDING) &&
-		(padding != RSA_SSLV23_PADDING))
-		{
-		RSAerr(RSA_F_RSA_EAY_PUBLIC_ENCRYPT,RSA_R_UNKNOWN_PADDING_TYPE);
-		goto err;
-		}
-
-	ctx=BN_CTX_new();
-	if (ctx == NULL) goto err;
-
-	num=BN_num_bytes(rsa->n);
-	if (flen > (num-11))
-		{
-		RSAerr(RSA_F_RSA_EAY_PUBLIC_ENCRYPT,RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE);
-		goto err;
-		}
-	
-	buf=(unsigned char *)Malloc(num);
-	if (buf == NULL)
-		{
-		RSAerr(RSA_F_RSA_EAY_PUBLIC_ENCRYPT,ERR_R_MALLOC_FAILURE);
-		goto err;
-		}
-	p=(unsigned char *)buf;
-
-	*(p++)=0;
-	*(p++)=2; /* Public Key BT (Block Type) */
-
-	/* pad out with non-zero random data */
-	j=num-3-flen;
-
-	RAND_bytes(p,j);
-	for (i=0; i<j; i++)
-		{
-		if (*p == '\0')
-			do	{
-				RAND_bytes(p,1);
-				} while (*p == '\0');
-		p++;
-		}
-
-	if (padding == RSA_SSLV23_PADDING)
-		memset(&(p[-8]),3,8);
-
-	*(p++)='\0';
-
-	memcpy(p,from,(unsigned int)flen);
-
-	f=BN_new();
-	ret=BN_new();
-	if ((f == NULL) || (ret == NULL)) goto err;
-
-	if (BN_bin2bn(buf,num,f) == NULL) goto err;
-	if (!rsa->meth->bn_mod_exp(ret,f,rsa->e,rsa->n,ctx)) goto err;
-
-	/* put in leading 0 bytes if the number is less than the
-	 * length of the modulus */
-	j=BN_num_bytes(ret);
-	i=BN_bn2bin(ret,&(to[num-j]));
-	for (k=0; k<(num-i); k++)
-		to[k]=0;
-
-	r=num;
-err:
-	if (ctx != NULL) BN_CTX_free(ctx);
-	if (f != NULL) BN_free(f);
-	if (ret != NULL) BN_free(ret);
-	if (buf != NULL) 
-		{
-		memset(buf,0,num);
-		Free(buf);
-		}
-	return(r);
-	}
-
-static int RSA_eay_private_encrypt(flen, from, to, rsa, padding)
-int flen;
-unsigned char *from;
-unsigned char *to;
-RSA *rsa;
-int padding;
-	{
-	BIGNUM *f=NULL,*ret=NULL;
-	int i,j,k,num=0,r= -1;
-	unsigned char *p;
-	unsigned char *buf=NULL;
-	BN_CTX *ctx=NULL;
-
-	if (padding != RSA_PKCS1_PADDING)
-		{
-		RSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT,RSA_R_UNKNOWN_PADDING_TYPE);
-		goto err;
-		}
-
-	ctx=BN_CTX_new();
-	if (ctx == NULL) goto err;
-
-	num=BN_num_bytes(rsa->n);
-	if (flen > (num-11))
-		{
-		RSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT,RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE);
-		goto err;
-		}
-	buf=(unsigned char *)Malloc(num);
-	if (buf == NULL)
-		{
-		RSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT,ERR_R_MALLOC_FAILURE);
-		goto err;
-		}
-	p=buf;
-
-	*(p++)=0;
-	*(p++)=1; /* Private Key BT (Block Type) */
-
-	/* padd out with 0xff data */
-	j=num-3-flen;
-	for (i=0; i<j; i++)
-		*(p++)=0xff;
-	*(p++)='\0';
-	memcpy(p,from,(unsigned int)flen);
-	ret=BN_new();
-	f=BN_new();
-	if ((ret == NULL) || (f == NULL)) goto err;
-	if (BN_bin2bn(buf,num,f) == NULL) goto err;
-	if (	(rsa->p != NULL) &&
-		(rsa->q != NULL) &&
-		(rsa->dmp1 != NULL) &&
-		(rsa->dmq1 != NULL) &&
-		(rsa->iqmp != NULL))
-		{ if (!rsa->meth->rsa_mod_exp(ret,f,rsa)) goto err; }
-	else
-		{ if (!rsa->meth->bn_mod_exp(ret,f,rsa->d,rsa->n,ctx)) goto err; }
-
-	p=buf;
-	BN_bn2bin(ret,p);
-
-	/* put in leading 0 bytes if the number is less than the
-	 * length of the modulus */
-	j=BN_num_bytes(ret);
-	i=BN_bn2bin(ret,&(to[num-j]));
-	for (k=0; k<(num-i); k++)
-		to[k]=0;
-
-	r=num;
-err:
-	if (ctx != NULL) BN_CTX_free(ctx);
-	if (ret != NULL) BN_free(ret);
-	if (f != NULL) BN_free(f);
-	if (buf != NULL)
-		{
-		memset(buf,0,num);
-		Free(buf);
-		}
-	return(r);
-	}
-
-static int RSA_eay_private_decrypt(flen, from, to, rsa,padding)
-int flen;
-unsigned char *from;
-unsigned char *to;
-RSA *rsa;
-int padding;
-	{
-	BIGNUM *f=NULL,*ret=NULL;
-	int i,j,num=0,r= -1;
-	unsigned char *p;
-	unsigned char *buf=NULL;
-	BN_CTX *ctx=NULL;
-
-	if ((padding != RSA_PKCS1_PADDING) && (padding != RSA_SSLV23_PADDING))
-		{
-		RSAerr(RSA_F_RSA_EAY_PRIVATE_DECRYPT,RSA_R_UNKNOWN_PADDING_TYPE);
-		goto err;
-		}
-
-	ctx=BN_CTX_new();
-	if (ctx == NULL) goto err;
-
-	num=BN_num_bytes(rsa->n);
-
-	buf=(unsigned char *)Malloc(num);
-	if (buf == NULL)
-		{
-		RSAerr(RSA_F_RSA_EAY_PRIVATE_DECRYPT,ERR_R_MALLOC_FAILURE);
-		goto err;
-		}
-
-	/* This check was for equallity but PGP does evil things
-	 * and chops off the top '0' bytes */
-	if (flen > num)
-		{
-		RSAerr(RSA_F_RSA_EAY_PRIVATE_DECRYPT,RSA_R_DATA_GREATER_THAN_MOD_LEN);
-		goto err;
-		}
-
-	/* make data into a big number */
-	ret=BN_new();
-	f=BN_new();
-	if ((ret == NULL) || (f == NULL)) goto err;
-	if (BN_bin2bn(from,(int)flen,f) == NULL) goto err;
-	/* do the decrypt */
-	if (	(rsa->p != NULL) &&
-		(rsa->q != NULL) &&
-		(rsa->dmp1 != NULL) &&
-		(rsa->dmq1 != NULL) &&
-		(rsa->iqmp != NULL))
-		{ if (!rsa->meth->rsa_mod_exp(ret,f,rsa)) goto err; }
-	else
-		{ if (!rsa->meth->bn_mod_exp(ret,f,rsa->d,rsa->n,ctx)) goto err; }
-
-	p=buf;
-	BN_bn2bin(ret,p);
-
-	/* BT must be 02 */
-	if (*(p++) != 02)
-		{
-		RSAerr(RSA_F_RSA_EAY_PRIVATE_DECRYPT,RSA_R_BLOCK_TYPE_IS_NOT_02);
-		goto err;
-		}
-
-	/* scan over padding data */
-	j=num-2; /* one for type and one for the prepended 0. */
-	for (i=0; i<j; i++)
-		if (*(p++) == 0) break;
-
-	if (i == j)
-		{
-		RSAerr(RSA_F_RSA_EAY_PRIVATE_DECRYPT,RSA_R_NULL_BEFORE_BLOCK_MISSING);
-		goto err;
-		}
-
-	if (i < 8)
-		{
-		RSAerr(RSA_F_RSA_EAY_PRIVATE_DECRYPT,RSA_R_BAD_PAD_BYTE_COUNT);
-		goto err;
-		}
-
-#undef RSA_DEBUG
-#ifdef RSA_DEBUG
-	{
-	int z;
-	unsigned char *q;
-	q= &(p[-9]);
-	fprintf(stderr,"\n");
-	for (z=0; z<8; z++) fprintf(stderr,"%02X",q[z]);
-	fprintf(stderr,"\n");
-	}
-#endif
-
-	if (padding == RSA_SSLV23_PADDING)
-		{
-		int z;
-		unsigned char *q;
-
-		/* -9 because we have jumped the '\0' */
-		q= &(p[-9]);
-		for (z=0; z<8; z++)
-			{
-			if (*(q++) != 0x03)
-				break;
-			}
-		if (z == 8)
-			{
-			RSAerr(RSA_F_RSA_EAY_PRIVATE_DECRYPT,RSA_R_SSLV3_ROLLBACK_ATTACK);
-			goto err;
-			}
-		}
-
-	/* skip over the '\0' */
-	i++;	
-	j-=i;
-
-	/* output data */
-	memcpy(to,p,(unsigned int)j);
-	r=j;
-err:
-	if (ctx != NULL) BN_CTX_free(ctx);
-	if (f != NULL) BN_free(f);
-	if (ret != NULL) BN_free(ret);
-	if (buf != NULL)
-		{
-		memset(buf,0,num);
-		Free(buf);
-		}
-	return(r);
-	}
-
-static int RSA_eay_public_decrypt(flen, from, to, rsa, padding)
-int flen;
-unsigned char *from;
-unsigned char *to;
-RSA *rsa;
-int padding;
-	{
-	BIGNUM *f=NULL,*ret=NULL;
-	int i,j,num=0,r= -1;
-	unsigned char *p;
-	unsigned char *buf=NULL;
-	BN_CTX *ctx=NULL;
-
-	if (padding != RSA_PKCS1_PADDING)
-		{
-		RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT,RSA_R_UNKNOWN_PADDING_TYPE);
-		goto err;
-		}
-
-	ctx=BN_CTX_new();
-	if (ctx == NULL) goto err;
-
-	num=BN_num_bytes(rsa->n);
-	buf=(unsigned char *)Malloc(num);
-	if (buf == NULL)
-		{
-		RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT,ERR_R_MALLOC_FAILURE);
-		goto err;
-		}
-
-	/* This check was for equallity but PGP does evil things
-	 * and chops off the top '0' bytes */
-	if (flen > num)
-		{
-		RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT,RSA_R_DATA_GREATER_THAN_MOD_LEN);
-		goto err;
-		}
-
-	/* make data into a big number */
-	f=BN_new();
-	ret=BN_new();
-	if ((f == NULL) || (ret == NULL)) goto err;
-
-	if (BN_bin2bn(from,flen,f) == NULL) goto err;
-	/* do the decrypt */
-	if (!rsa->meth->bn_mod_exp(ret,f,rsa->e,rsa->n,ctx)) goto err;
-
-	p=buf;
-	i=BN_bn2bin(ret,p);
-
-	/* BT must be 01 */
-	if (*(p++) != 01)
-		{
-		RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT,RSA_R_BLOCK_TYPE_IS_NOT_01);
-		goto err;
-		}
-
-	/* scan over padding data */
-	j=num-2; /* one for type and one for the prepended 0. */
-	for (i=0; i<j; i++)
-		{
-		if (*p != 0xff) /* should decrypt to 0xff */
-			{
-			if (*p == 0)
-				{ p++; break; }
-			else	{
-				RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT,RSA_R_BAD_FIXED_HEADER_DECRYPT);
-				goto err;
-				}
-			}
-		p++;
-		}
-	if (i == j)
-		{
-		RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT,RSA_R_NULL_BEFORE_BLOCK_MISSING);
-		goto err;
-		}
-	if (i < 8)
-		{
-		RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT,RSA_R_BAD_PAD_BYTE_COUNT);
-		goto err;
-		}
-
-	/* skip over the '\0' */
-	i++;	
-	j-=i;
-
-	/* output data */
-	memcpy(to,p,(unsigned int)j);
-	r=j;
-err:
-	if (ctx != NULL) BN_CTX_free(ctx);
-	if (f != NULL) BN_free(f);
-	if (ret != NULL) BN_free(ret);
-	if (buf != NULL)
-		{
-		memset(buf,0,num);
-		Free(buf);
-		}
-	return(r);
-	}
-
-static int RSA_eay_mod_exp(r0, I, rsa)
-BIGNUM *r0;
-BIGNUM *I;
-RSA *rsa;
-	{
-	BIGNUM *r1=NULL,*m1=NULL;
-	int ret=0;
-	BN_CTX *ctx;
-
-	if ((ctx=BN_CTX_new()) == NULL) goto err;
-	m1=BN_new();
-	r1=BN_new();
-	if ((m1 == NULL) || (r1 == NULL)) goto err;
-
-	if (!BN_mod(r1,I,rsa->q,ctx)) goto err;
-	if (!rsa->meth->bn_mod_exp(m1,r1,rsa->dmq1,rsa->q,ctx)) goto err;
-
-	if (!BN_mod(r1,I,rsa->p,ctx)) goto err;
-	if (!rsa->meth->bn_mod_exp(r0,r1,rsa->dmp1,rsa->p,ctx)) goto err;
-
-	if (!BN_add(r1,r0,rsa->p)) goto err;
-	if (!BN_sub(r0,r1,m1)) goto err;
-
-	if (!BN_mul(r1,r0,rsa->iqmp)) goto err;
-	if (!BN_mod(r0,r1,rsa->p,ctx)) goto err;
-	if (!BN_mul(r1,r0,rsa->q)) goto err;
-	if (!BN_add(r0,r1,m1)) goto err;
-	
-	ret=1;
-err:
-	if (m1 != NULL) BN_free(m1);
-	if (r1 != NULL) BN_free(r1);
-	BN_CTX_free(ctx);
-	return(ret);
-	}
-
-