Absolute File Name: | /home/opencoverage/opencoverage/guest-scripts/libressl/src/crypto/rc2/rc2_skey.c |
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1 | /* $OpenBSD: rc2_skey.c,v 1.12 2014/06/12 15:49:30 deraadt Exp $ */ | - | ||||||
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 | /* It has come to my attention that there are 2 versions of the RC2 | - | ||||||
89 | * key schedule. One which is normal, and anther which has a hook to | - | ||||||
90 | * use a reduced key length. | - | ||||||
91 | * BSAFE uses the 'retarded' version. What I previously shipped is | - | ||||||
92 | * the same as specifying 1024 for the 'bits' parameter. Bsafe uses | - | ||||||
93 | * a version where the bits parameter is the same as len*8 */ | - | ||||||
94 | void RC2_set_key(RC2_KEY *key, int len, const unsigned char *data, int bits) | - | ||||||
95 | { | - | ||||||
96 | int i,j; | - | ||||||
97 | unsigned char *k; | - | ||||||
98 | RC2_INT *ki; | - | ||||||
99 | unsigned int c,d; | - | ||||||
100 | - | |||||||
101 | k= (unsigned char *)&(key->data[0]); | - | ||||||
102 | *k=0; /* for if there is a zero length key */ | - | ||||||
103 | - | |||||||
104 | if (len > 128) len=128; never executed: len=128;
| 0-28 | ||||||
105 | if (bits <= 0) bits=1024; executed 4 times by 1 test: bits=1024; Executed by:
| 4-24 | ||||||
106 | if (bits > 1024) bits=1024; never executed: bits=1024;
| 0-28 | ||||||
107 | - | |||||||
108 | for (i=0; i<len; i++)
| 28-372 | ||||||
109 | k[i]=data[i]; executed 372 times by 2 tests: k[i]=data[i]; Executed by:
| 372 | ||||||
110 | - | |||||||
111 | /* expand table */ | - | ||||||
112 | d=k[len-1]; | - | ||||||
113 | j=0; | - | ||||||
114 | for (i=len; i < 128; i++,j++)
| 28-3212 | ||||||
115 | { | - | ||||||
116 | d=key_table[(k[j]+d)&0xff]; | - | ||||||
117 | k[i]=d; | - | ||||||
118 | } executed 3212 times by 2 tests: end of block Executed by:
| 3212 | ||||||
119 | - | |||||||
120 | /* hmm.... key reduction to 'bits' bits */ | - | ||||||
121 | - | |||||||
122 | j=(bits+7)>>3; | - | ||||||
123 | i=128-j; | - | ||||||
124 | c= (0xff>>(-bits & 0x07)); | - | ||||||
125 | - | |||||||
126 | d=key_table[k[i]&c]; | - | ||||||
127 | k[i]=d; | - | ||||||
128 | while (i--)
| 28-2764 | ||||||
129 | { | - | ||||||
130 | d=key_table[k[i+j]^d]; | - | ||||||
131 | k[i]=d; | - | ||||||
132 | } executed 2764 times by 1 test: end of block Executed by:
| 2764 | ||||||
133 | - | |||||||
134 | /* copy from bytes into RC2_INT's */ | - | ||||||
135 | ki= &(key->data[63]); | - | ||||||
136 | for (i=127; i>=0; i-=2)
| 28-1792 | ||||||
137 | *(ki--)=((k[i]<<8)|k[i-1])&0xffff; executed 1792 times by 2 tests: *(ki--)=((k[i]<<8)|k[i-1])&0xffff; Executed by:
| 1792 | ||||||
138 | } executed 28 times by 2 tests: end of block Executed by:
| 28 | ||||||
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