156083Skris/* crypto/rsa/rsa_none.c */ 256083Skris/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 356083Skris * All rights reserved. 456083Skris * 556083Skris * This package is an SSL implementation written 656083Skris * by Eric Young (eay@cryptsoft.com). 756083Skris * The implementation was written so as to conform with Netscapes SSL. 8280304Sjkim * 956083Skris * This library is free for commercial and non-commercial use as long as 1056083Skris * the following conditions are aheared to. The following conditions 1156083Skris * apply to all code found in this distribution, be it the RC4, RSA, 1256083Skris * lhash, DES, etc., code; not just the SSL code. The SSL documentation 1356083Skris * included with this distribution is covered by the same copyright terms 1456083Skris * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15280304Sjkim * 1656083Skris * Copyright remains Eric Young's, and as such any Copyright notices in 1756083Skris * the code are not to be removed. 1856083Skris * If this package is used in a product, Eric Young should be given attribution 1956083Skris * as the author of the parts of the library used. 2056083Skris * This can be in the form of a textual message at program startup or 2156083Skris * in documentation (online or textual) provided with the package. 22280304Sjkim * 2356083Skris * Redistribution and use in source and binary forms, with or without 2456083Skris * modification, are permitted provided that the following conditions 2556083Skris * are met: 2656083Skris * 1. Redistributions of source code must retain the copyright 2756083Skris * notice, this list of conditions and the following disclaimer. 2856083Skris * 2. Redistributions in binary form must reproduce the above copyright 2956083Skris * notice, this list of conditions and the following disclaimer in the 3056083Skris * documentation and/or other materials provided with the distribution. 3156083Skris * 3. All advertising materials mentioning features or use of this software 3256083Skris * must display the following acknowledgement: 3356083Skris * "This product includes cryptographic software written by 3456083Skris * Eric Young (eay@cryptsoft.com)" 3556083Skris * The word 'cryptographic' can be left out if the rouines from the library 3656083Skris * being used are not cryptographic related :-). 37280304Sjkim * 4. If you include any Windows specific code (or a derivative thereof) from 3856083Skris * the apps directory (application code) you must include an acknowledgement: 3956083Skris * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40280304Sjkim * 4156083Skris * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 4256083Skris * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 4356083Skris * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 4456083Skris * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 4556083Skris * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 4656083Skris * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 4756083Skris * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 4856083Skris * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 4956083Skris * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 5056083Skris * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 5156083Skris * SUCH DAMAGE. 52280304Sjkim * 5356083Skris * The licence and distribution terms for any publically available version or 5456083Skris * derivative of this code cannot be changed. i.e. this code cannot simply be 5556083Skris * copied and put under another distribution licence 5656083Skris * [including the GNU Public Licence.] 5756083Skris */ 5856083Skris 5956083Skris#include <stdio.h> 6056083Skris#include "cryptlib.h" 6156083Skris#include <openssl/bn.h> 6256083Skris#include <openssl/rsa.h> 6356083Skris#include <openssl/rand.h> 6456083Skris 65109998Smarkmint RSA_padding_add_none(unsigned char *to, int tlen, 66280304Sjkim const unsigned char *from, int flen) 67280304Sjkim{ 68280304Sjkim if (flen > tlen) { 69280304Sjkim RSAerr(RSA_F_RSA_PADDING_ADD_NONE, RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE); 70280304Sjkim return (0); 71280304Sjkim } 7256083Skris 73280304Sjkim if (flen < tlen) { 74280304Sjkim RSAerr(RSA_F_RSA_PADDING_ADD_NONE, RSA_R_DATA_TOO_SMALL_FOR_KEY_SIZE); 75280304Sjkim return (0); 76280304Sjkim } 7756083Skris 78280304Sjkim memcpy(to, from, (unsigned int)flen); 79280304Sjkim return (1); 80280304Sjkim} 81280304Sjkim 82109998Smarkmint RSA_padding_check_none(unsigned char *to, int tlen, 83280304Sjkim const unsigned char *from, int flen, int num) 84280304Sjkim{ 8556083Skris 86280304Sjkim if (flen > tlen) { 87280304Sjkim RSAerr(RSA_F_RSA_PADDING_CHECK_NONE, RSA_R_DATA_TOO_LARGE); 88280304Sjkim return (-1); 89280304Sjkim } 9056083Skris 91280304Sjkim memset(to, 0, tlen - flen); 92280304Sjkim memcpy(to + tlen - flen, from, flen); 93280304Sjkim return (tlen); 94280304Sjkim} 95