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1 | /* crypto/evp/e_ecb_r5.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 | #ifndef NO_RC5 | |
60 | ||
61 | #include <stdio.h> | |
62 | #include "cryptlib.h" | |
63 | #include "evp.h" | |
64 | #include "objects.h" | |
65 | ||
66 | #ifndef NOPROTO | |
67 | static void rc5_32_12_16_ecb_init_key(EVP_CIPHER_CTX *ctx, unsigned char *key, | |
68 | unsigned char *iv,int enc); | |
69 | static void rc5_32_12_16_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | |
70 | unsigned char *in, unsigned int inl); | |
71 | #else | |
72 | static void rc5_32_12_16_ecb_init_key(); | |
73 | static void rc5_32_12_16_ecb_cipher(); | |
74 | #endif | |
75 | ||
76 | static EVP_CIPHER rc5_ecb_cipher= | |
77 | { | |
78 | NID_rc5_ecb, | |
79 | 8,EVP_RC5_32_12_16_KEY_SIZE,0, | |
80 | rc5_32_12_16_ecb_init_key, | |
81 | rc5_32_12_16_ecb_cipher, | |
82 | NULL, | |
83 | sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+ | |
84 | sizeof((((EVP_CIPHER_CTX *)NULL)->c.rc5_ks)), | |
85 | NULL, | |
86 | NULL, | |
87 | }; | |
88 | ||
89 | EVP_CIPHER *EVP_rc5_32_12_16_ecb() | |
90 | { | |
91 | return(&rc5_ecb_cipher); | |
92 | } | |
93 | ||
94 | static void rc5_32_12_16_ecb_init_key(ctx,key,iv,enc) | |
95 | EVP_CIPHER_CTX *ctx; | |
96 | unsigned char *key; | |
97 | unsigned char *iv; | |
98 | int enc; | |
99 | { | |
100 | if (key != NULL) | |
101 | RC5_32_set_key(&(ctx->c.rc5_ks),EVP_RC5_32_12_16_KEY_SIZE,key, | |
102 | RC5_12_ROUNDS); | |
103 | } | |
104 | ||
105 | static void rc5_32_12_16_ecb_cipher(ctx,out,in,inl) | |
106 | EVP_CIPHER_CTX *ctx; | |
107 | unsigned char *out; | |
108 | unsigned char *in; | |
109 | unsigned int inl; | |
110 | { | |
111 | unsigned int i; | |
112 | ||
113 | if (inl < 8) return; | |
114 | inl-=8; | |
115 | for (i=0; i<=inl; i+=8) | |
116 | { | |
117 | RC5_32_ecb_encrypt( | |
118 | &(in[i]),&(out[i]), | |
119 | &(ctx->c.rc5_ks),ctx->encrypt); | |
120 | } | |
121 | } | |
122 | ||
123 | #endif |