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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 | ||
560b79cb | 56 | const char CAMELLIA_version[]="CAMELLIA" OPENSSL_VERSION_PTEXT; |
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57 | |
58 | int Camellia_set_key(const unsigned char *userKey, const int bits, | |
59 | CAMELLIA_KEY *key) | |
60 | { | |
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61 | if (!userKey || !key) |
62 | { | |
67912e00 | 63 | return -1; |
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64 | } |
65 | ||
66 | switch(bits) | |
67 | { | |
68 | case 128: | |
69 | camellia_setup128(userKey, (unsigned int *)key->rd_key); | |
70 | key->enc = camellia_encrypt128; | |
71 | key->dec = camellia_decrypt128; | |
72 | break; | |
73 | case 192: | |
74 | camellia_setup192(userKey, (unsigned int *)key->rd_key); | |
75 | key->enc = camellia_encrypt256; | |
76 | key->dec = camellia_decrypt256; | |
77 | break; | |
78 | case 256: | |
79 | camellia_setup256(userKey, (unsigned int *)key->rd_key); | |
80 | key->enc = camellia_encrypt256; | |
81 | key->dec = camellia_decrypt256; | |
82 | break; | |
83 | default: | |
67912e00 | 84 | return -2; |
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85 | } |
86 | ||
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87 | key->bitLength = bits; |
88 | return 0; | |
89 | } | |
90 | ||
91 | void Camellia_encrypt(const unsigned char *in, unsigned char *out, | |
92 | const CAMELLIA_KEY *key) | |
93 | { | |
9f8cfb1c | 94 | u32 tmp[CAMELLIA_BLOCK_SIZE/sizeof(u32)]; |
20da8b8f | 95 | const union { long one; char little; } camellia_endian = {1}; |
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96 | |
97 | memcpy(tmp, in, CAMELLIA_BLOCK_SIZE); | |
20da8b8f | 98 | if (camellia_endian.little) SWAP4WORD(tmp); |
413e0853 | 99 | key->enc(key->rd_key, tmp); |
20da8b8f | 100 | if (camellia_endian.little) SWAP4WORD(tmp); |
413e0853 | 101 | memcpy(out, tmp, CAMELLIA_BLOCK_SIZE); |
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102 | } |
103 | ||
104 | void Camellia_decrypt(const unsigned char *in, unsigned char *out, | |
105 | const CAMELLIA_KEY *key) | |
106 | { | |
9f8cfb1c | 107 | u32 tmp[CAMELLIA_BLOCK_SIZE/sizeof(u32)]; |
20da8b8f | 108 | const union { long one; char little; } camellia_endian = {1}; |
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109 | |
110 | memcpy(tmp, in, CAMELLIA_BLOCK_SIZE); | |
20da8b8f | 111 | if (camellia_endian.little) SWAP4WORD(tmp); |
413e0853 | 112 | key->dec(key->rd_key, tmp); |
20da8b8f | 113 | if (camellia_endian.little) SWAP4WORD(tmp); |
413e0853 | 114 | memcpy(out, tmp, CAMELLIA_BLOCK_SIZE); |
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115 | } |
116 |