Absolute File Name: | /home/opencoverage/opencoverage/guest-scripts/libressl/src/crypto/evp/e_rc4.c |
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1 | /* $OpenBSD: e_rc4.c,v 1.14 2014/07/11 08:44:48 jsing 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 <stdio.h> | - |
60 | - | |
61 | #include <openssl/opensslconf.h> | - |
62 | - | |
63 | #ifndef OPENSSL_NO_RC4 | - |
64 | - | |
65 | #include <openssl/evp.h> | - |
66 | #include <openssl/objects.h> | - |
67 | #include <openssl/rc4.h> | - |
68 | - | |
69 | #include "evp_locl.h" | - |
70 | - | |
71 | /* FIXME: surely this is available elsewhere? */ | - |
72 | #define EVP_RC4_KEY_SIZE 16 | - |
73 | - | |
74 | typedef struct { | - |
75 | RC4_KEY ks; /* working key */ | - |
76 | } EVP_RC4_KEY; | - |
77 | - | |
78 | #define data(ctx) ((EVP_RC4_KEY *)(ctx)->cipher_data) | - |
79 | - | |
80 | static int rc4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, | - |
81 | const unsigned char *iv, int enc); | - |
82 | static int rc4_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | - |
83 | const unsigned char *in, size_t inl); | - |
84 | - | |
85 | static const EVP_CIPHER r4_cipher = { | - |
86 | NID_rc4, | - |
87 | 1, EVP_RC4_KEY_SIZE, 0, | - |
88 | EVP_CIPH_VARIABLE_LENGTH, | - |
89 | rc4_init_key, | - |
90 | rc4_cipher, | - |
91 | NULL, | - |
92 | sizeof(EVP_RC4_KEY), | - |
93 | NULL, | - |
94 | NULL, | - |
95 | NULL, | - |
96 | NULL | - |
97 | }; | - |
98 | - | |
99 | static const EVP_CIPHER r4_40_cipher = { | - |
100 | NID_rc4_40, | - |
101 | 1, 5 /* 40 bit */, 0, | - |
102 | EVP_CIPH_VARIABLE_LENGTH, | - |
103 | rc4_init_key, | - |
104 | rc4_cipher, | - |
105 | NULL, | - |
106 | sizeof(EVP_RC4_KEY), | - |
107 | NULL, | - |
108 | NULL, | - |
109 | NULL, | - |
110 | NULL | - |
111 | }; | - |
112 | - | |
113 | const EVP_CIPHER * | - |
114 | EVP_rc4(void) | - |
115 | { | - |
116 | return (&r4_cipher); executed 625 times by 33 tests: return (&r4_cipher); Executed by:
| 625 |
117 | } | - |
118 | - | |
119 | const EVP_CIPHER * | - |
120 | EVP_rc4_40(void) | - |
121 | { | - |
122 | return (&r4_40_cipher); executed 292 times by 33 tests: return (&r4_40_cipher); Executed by:
| 292 |
123 | } | - |
124 | - | |
125 | static int | - |
126 | rc4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, | - |
127 | const unsigned char *iv, int enc) | - |
128 | { | - |
129 | RC4_set_key(&data(ctx)->ks, EVP_CIPHER_CTX_key_length(ctx), key); | - |
130 | return 1; executed 20 times by 2 tests: return 1; Executed by:
| 20 |
131 | } | - |
132 | - | |
133 | static int | - |
134 | rc4_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | - |
135 | const unsigned char *in, size_t inl) | - |
136 | { | - |
137 | RC4(&data(ctx)->ks, inl, in, out); | - |
138 | return 1; executed 20 times by 2 tests: return 1; Executed by:
| 20 |
139 | } | - |
140 | #endif | - |
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