1/* crypto/camellia/camellia_misc.c -*- mode:C; c-file-style: "eay" -*- */ 2/* ==================================================================== 3 * Copyright (c) 2006 The OpenSSL Project. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in 14 * the documentation and/or other materials provided with the 15 * distribution. 16 * 17 * 3. All advertising materials mentioning features or use of this 18 * software must display the following acknowledgment: 19 * "This product includes software developed by the OpenSSL Project 20 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 21 * 22 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 23 * endorse or promote products derived from this software without 24 * prior written permission. For written permission, please contact 25 * openssl-core@openssl.org. 26 * 27 * 5. Products derived from this software may not be called "OpenSSL" 28 * nor may "OpenSSL" appear in their names without prior written 29 * permission of the OpenSSL Project. 30 * 31 * 6. Redistributions of any form whatsoever must retain the following 32 * acknowledgment: 33 * "This product includes software developed by the OpenSSL Project 34 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 35 * 36 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 37 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 39 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 47 * OF THE POSSIBILITY OF SUCH DAMAGE. 48 * ==================================================================== 49 * 50 */ 51 52#include <openssl/opensslv.h> 53#include <openssl/camellia.h> 54#include "cmll_locl.h" 55#include <openssl/crypto.h> 56#ifdef OPENSSL_FIPS 57#include <openssl/fips.h> 58#endif 59 60const char CAMELLIA_version[]="CAMELLIA" OPENSSL_VERSION_PTEXT; 61 62int Camellia_set_key(const unsigned char *userKey, const int bits, 63 CAMELLIA_KEY *key) 64#ifdef OPENSSL_FIPS 65 { 66 if (FIPS_mode()) 67 FIPS_BAD_ABORT(CAMELLIA) 68 return private_Camellia_set_key(userKey, bits, key); 69 } 70int private_Camellia_set_key(const unsigned char *userKey, const int bits, 71 CAMELLIA_KEY *key) 72#endif 73 { 74 if (!userKey || !key) 75 { 76 return -1; 77 } 78 79 switch(bits) 80 { 81 case 128: 82 camellia_setup128(userKey, (unsigned int *)key->rd_key); 83 key->enc = camellia_encrypt128; 84 key->dec = camellia_decrypt128; 85 break; 86 case 192: 87 camellia_setup192(userKey, (unsigned int *)key->rd_key); 88 key->enc = camellia_encrypt256; 89 key->dec = camellia_decrypt256; 90 break; 91 case 256: 92 camellia_setup256(userKey, (unsigned int *)key->rd_key); 93 key->enc = camellia_encrypt256; 94 key->dec = camellia_decrypt256; 95 break; 96 default: 97 return -2; 98 } 99 100 key->bitLength = bits; 101 return 0; 102 } 103 104void Camellia_encrypt(const unsigned char *in, unsigned char *out, 105 const CAMELLIA_KEY *key) 106 { 107 u32 tmp[CAMELLIA_BLOCK_SIZE/sizeof(u32)]; 108 const union { long one; char little; } camellia_endian = {1}; 109 110 memcpy(tmp, in, CAMELLIA_BLOCK_SIZE); 111 if (camellia_endian.little) SWAP4WORD(tmp); 112 key->enc(key->rd_key, tmp); 113 if (camellia_endian.little) SWAP4WORD(tmp); 114 memcpy(out, tmp, CAMELLIA_BLOCK_SIZE); 115 } 116 117void Camellia_decrypt(const unsigned char *in, unsigned char *out, 118 const CAMELLIA_KEY *key) 119 { 120 u32 tmp[CAMELLIA_BLOCK_SIZE/sizeof(u32)]; 121 const union { long one; char little; } camellia_endian = {1}; 122 123 memcpy(tmp, in, CAMELLIA_BLOCK_SIZE); 124 if (camellia_endian.little) SWAP4WORD(tmp); 125 key->dec(key->rd_key, tmp); 126 if (camellia_endian.little) SWAP4WORD(tmp); 127 memcpy(out, tmp, CAMELLIA_BLOCK_SIZE); 128 } 129 130