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| 1 /* crypto/rc2/rc2_skey.c */ | |
| 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | |
| 3 * All rights reserved. | |
| 4 * | |
| 5 * This package is an SSL implementation written | |
| 6 * by Eric Young (eay@cryptsoft.com). | |
| 7 * The implementation was written so as to conform with Netscapes SSL. | |
| 8 * | |
| 9 * This library is free for commercial and non-commercial use as long as | |
| 10 * the following conditions are aheared to. The following conditions | |
| 11 * apply to all code found in this distribution, be it the RC4, RSA, | |
| 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
| 13 * included with this distribution is covered by the same copyright terms | |
| 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
| 15 * | |
| 16 * Copyright remains Eric Young's, and as such any Copyright notices in | |
| 17 * the code are not to be removed. | |
| 18 * If this package is used in a product, Eric Young should be given attribution | |
| 19 * as the author of the parts of the library used. | |
| 20 * This can be in the form of a textual message at program startup or | |
| 21 * in documentation (online or textual) provided with the package. | |
| 22 * | |
| 23 * Redistribution and use in source and binary forms, with or without | |
| 24 * modification, are permitted provided that the following conditions | |
| 25 * are met: | |
| 26 * 1. Redistributions of source code must retain the copyright | |
| 27 * notice, this list of conditions and the following disclaimer. | |
| 28 * 2. Redistributions in binary form must reproduce the above copyright | |
| 29 * notice, this list of conditions and the following disclaimer in the | |
| 30 * documentation and/or other materials provided with the distribution. | |
| 31 * 3. All advertising materials mentioning features or use of this software | |
| 32 * must display the following acknowledgement: | |
| 33 * "This product includes cryptographic software written by | |
| 34 * Eric Young (eay@cryptsoft.com)" | |
| 35 * The word 'cryptographic' can be left out if the rouines from the library | |
| 36 * being used are not cryptographic related :-). | |
| 37 * 4. If you include any Windows specific code (or a derivative thereof) from | |
| 38 * the apps directory (application code) you must include an acknowledgement: | |
| 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
| 40 * | |
| 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | |
| 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
| 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 51 * SUCH DAMAGE. | |
| 52 * | |
| 53 * The licence and distribution terms for any publically available version or | |
| 54 * derivative of this code cannot be changed. i.e. this code cannot simply be | |
| 55 * copied and put under another distribution licence | |
| 56 * [including the GNU Public Licence.] | |
| 57 */ | |
| 58 | |
| 59 #include <openssl/crypto.h> | |
| 60 #include <openssl/rc2.h> | |
| 61 #include "rc2_locl.h" | |
| 62 | |
| 63 static const unsigned char key_table[256]={ | |
| 64 0xd9,0x78,0xf9,0xc4,0x19,0xdd,0xb5,0xed,0x28,0xe9,0xfd,0x79, | |
| 65 0x4a,0xa0,0xd8,0x9d,0xc6,0x7e,0x37,0x83,0x2b,0x76,0x53,0x8e, | |
| 66 0x62,0x4c,0x64,0x88,0x44,0x8b,0xfb,0xa2,0x17,0x9a,0x59,0xf5, | |
| 67 0x87,0xb3,0x4f,0x13,0x61,0x45,0x6d,0x8d,0x09,0x81,0x7d,0x32, | |
| 68 0xbd,0x8f,0x40,0xeb,0x86,0xb7,0x7b,0x0b,0xf0,0x95,0x21,0x22, | |
| 69 0x5c,0x6b,0x4e,0x82,0x54,0xd6,0x65,0x93,0xce,0x60,0xb2,0x1c, | |
| 70 0x73,0x56,0xc0,0x14,0xa7,0x8c,0xf1,0xdc,0x12,0x75,0xca,0x1f, | |
| 71 0x3b,0xbe,0xe4,0xd1,0x42,0x3d,0xd4,0x30,0xa3,0x3c,0xb6,0x26, | |
| 72 0x6f,0xbf,0x0e,0xda,0x46,0x69,0x07,0x57,0x27,0xf2,0x1d,0x9b, | |
| 73 0xbc,0x94,0x43,0x03,0xf8,0x11,0xc7,0xf6,0x90,0xef,0x3e,0xe7, | |
| 74 0x06,0xc3,0xd5,0x2f,0xc8,0x66,0x1e,0xd7,0x08,0xe8,0xea,0xde, | |
| 75 0x80,0x52,0xee,0xf7,0x84,0xaa,0x72,0xac,0x35,0x4d,0x6a,0x2a, | |
| 76 0x96,0x1a,0xd2,0x71,0x5a,0x15,0x49,0x74,0x4b,0x9f,0xd0,0x5e, | |
| 77 0x04,0x18,0xa4,0xec,0xc2,0xe0,0x41,0x6e,0x0f,0x51,0xcb,0xcc, | |
| 78 0x24,0x91,0xaf,0x50,0xa1,0xf4,0x70,0x39,0x99,0x7c,0x3a,0x85, | |
| 79 0x23,0xb8,0xb4,0x7a,0xfc,0x02,0x36,0x5b,0x25,0x55,0x97,0x31, | |
| 80 0x2d,0x5d,0xfa,0x98,0xe3,0x8a,0x92,0xae,0x05,0xdf,0x29,0x10, | |
| 81 0x67,0x6c,0xba,0xc9,0xd3,0x00,0xe6,0xcf,0xe1,0x9e,0xa8,0x2c, | |
| 82 0x63,0x16,0x01,0x3f,0x58,0xe2,0x89,0xa9,0x0d,0x38,0x34,0x1b, | |
| 83 0xab,0x33,0xff,0xb0,0xbb,0x48,0x0c,0x5f,0xb9,0xb1,0xcd,0x2e, | |
| 84 0xc5,0xf3,0xdb,0x47,0xe5,0xa5,0x9c,0x77,0x0a,0xa6,0x20,0x68, | |
| 85 0xfe,0x7f,0xc1,0xad, | |
| 86 }; | |
| 87 | |
| 88 #if defined(_MSC_VER) && defined(_ARM_) | |
| 89 #pragma optimize("g",off) | |
| 90 #endif | |
| 91 | |
| 92 /* It has come to my attention that there are 2 versions of the RC2 | |
| 93 * key schedule. One which is normal, and anther which has a hook to | |
| 94 * use a reduced key length. | |
| 95 * BSAFE uses the 'retarded' version. What I previously shipped is | |
| 96 * the same as specifying 1024 for the 'bits' parameter. Bsafe uses | |
| 97 * a version where the bits parameter is the same as len*8 */ | |
| 98 void RC2_set_key(RC2_KEY *key, int len, const unsigned char *data, int bits) | |
| 99 #ifdef OPENSSL_FIPS | |
| 100 { | |
| 101 fips_cipher_abort(RC2); | |
| 102 private_RC2_set_key(key, len, data, bits); | |
| 103 } | |
| 104 void private_RC2_set_key(RC2_KEY *key, int len, const unsigned char *data, int b
its) | |
| 105 #endif | |
| 106 { | |
| 107 int i,j; | |
| 108 unsigned char *k; | |
| 109 RC2_INT *ki; | |
| 110 unsigned int c,d; | |
| 111 | |
| 112 k= (unsigned char *)&(key->data[0]); | |
| 113 *k=0; /* for if there is a zero length key */ | |
| 114 | |
| 115 if (len > 128) len=128; | |
| 116 if (bits <= 0) bits=1024; | |
| 117 if (bits > 1024) bits=1024; | |
| 118 | |
| 119 for (i=0; i<len; i++) | |
| 120 k[i]=data[i]; | |
| 121 | |
| 122 /* expand table */ | |
| 123 d=k[len-1]; | |
| 124 j=0; | |
| 125 for (i=len; i < 128; i++,j++) | |
| 126 { | |
| 127 d=key_table[(k[j]+d)&0xff]; | |
| 128 k[i]=d; | |
| 129 } | |
| 130 | |
| 131 /* hmm.... key reduction to 'bits' bits */ | |
| 132 | |
| 133 j=(bits+7)>>3; | |
| 134 i=128-j; | |
| 135 c= (0xff>>(-bits & 0x07)); | |
| 136 | |
| 137 d=key_table[k[i]&c]; | |
| 138 k[i]=d; | |
| 139 while (i--) | |
| 140 { | |
| 141 d=key_table[k[i+j]^d]; | |
| 142 k[i]=d; | |
| 143 } | |
| 144 | |
| 145 /* copy from bytes into RC2_INT's */ | |
| 146 ki= &(key->data[63]); | |
| 147 for (i=127; i>=0; i-=2) | |
| 148 *(ki--)=((k[i]<<8)|k[i-1])&0xffff; | |
| 149 } | |
| 150 | |
| 151 #if defined(_MSC_VER) | |
| 152 #pragma optimize("",on) | |
| 153 #endif | |
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Chromium Code Reviews
Issue 2072073002:
Delete bundled copy of OpenSSL and replace with README. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master