2 * Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 #include <openssl/opensslconf.h>
11 #ifdef OPENSSL_NO_CAMELLIA
12 NON_EMPTY_TRANSLATION_UNIT
15 # include <openssl/evp.h>
16 # include <openssl/err.h>
19 # include <openssl/camellia.h>
20 # include "crypto/evp.h"
21 # include "crypto/modes.h"
22 # include "crypto/ciphermode_platform.h"
24 static int camellia_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
25 const unsigned char *iv, int enc);
27 /* Camellia subkey Structure */
37 # define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
39 /* Attribute operation for Camellia */
40 # define data(ctx) EVP_C_DATA(EVP_CAMELLIA_KEY,ctx)
42 # if defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
43 /* ---------^^^ this is not a typo, just a way to detect that
44 * assembler support was in general requested... */
45 # include "sparc_arch.h"
48 static int cmll_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
49 const unsigned char *iv, int enc)
52 EVP_CAMELLIA_KEY *dat =
53 (EVP_CAMELLIA_KEY *)EVP_CIPHER_CTX_get_cipher_data(ctx);
55 mode = EVP_CIPHER_CTX_mode(ctx);
56 bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
58 cmll_t4_set_key(key, bits, &dat->ks);
60 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
63 dat->block = (block128_f) cmll_t4_decrypt;
66 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
67 (cbc128_f) cmll128_t4_cbc_decrypt : NULL;
71 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
72 (cbc128_f) cmll256_t4_cbc_decrypt : NULL;
79 dat->block = (block128_f) cmll_t4_encrypt;
82 if (mode == EVP_CIPH_CBC_MODE)
83 dat->stream.cbc = (cbc128_f) cmll128_t4_cbc_encrypt;
84 else if (mode == EVP_CIPH_CTR_MODE)
85 dat->stream.ctr = (ctr128_f) cmll128_t4_ctr32_encrypt;
87 dat->stream.cbc = NULL;
91 if (mode == EVP_CIPH_CBC_MODE)
92 dat->stream.cbc = (cbc128_f) cmll256_t4_cbc_encrypt;
93 else if (mode == EVP_CIPH_CTR_MODE)
94 dat->stream.ctr = (ctr128_f) cmll256_t4_ctr32_encrypt;
96 dat->stream.cbc = NULL;
104 EVPerr(EVP_F_CMLL_T4_INIT_KEY, EVP_R_CAMELLIA_KEY_SETUP_FAILED);
111 # define cmll_t4_cbc_cipher camellia_cbc_cipher
112 static int cmll_t4_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
113 const unsigned char *in, size_t len);
115 # define cmll_t4_ecb_cipher camellia_ecb_cipher
116 static int cmll_t4_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
117 const unsigned char *in, size_t len);
119 # define cmll_t4_ofb_cipher camellia_ofb_cipher
120 static int cmll_t4_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
121 const unsigned char *in, size_t len);
123 # define cmll_t4_cfb_cipher camellia_cfb_cipher
124 static int cmll_t4_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
125 const unsigned char *in, size_t len);
127 # define cmll_t4_cfb8_cipher camellia_cfb8_cipher
128 static int cmll_t4_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
129 const unsigned char *in, size_t len);
131 # define cmll_t4_cfb1_cipher camellia_cfb1_cipher
132 static int cmll_t4_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
133 const unsigned char *in, size_t len);
135 # define cmll_t4_ctr_cipher camellia_ctr_cipher
136 static int cmll_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
137 const unsigned char *in, size_t len);
139 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
140 static const EVP_CIPHER cmll_t4_##keylen##_##mode = { \
141 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
142 flags|EVP_CIPH_##MODE##_MODE, \
144 cmll_t4_##mode##_cipher, \
146 sizeof(EVP_CAMELLIA_KEY), \
147 NULL,NULL,NULL,NULL }; \
148 static const EVP_CIPHER camellia_##keylen##_##mode = { \
149 nid##_##keylen##_##nmode,blocksize, \
151 flags|EVP_CIPH_##MODE##_MODE, \
153 camellia_##mode##_cipher, \
155 sizeof(EVP_CAMELLIA_KEY), \
156 NULL,NULL,NULL,NULL }; \
157 const EVP_CIPHER *EVP_camellia_##keylen##_##mode(void) \
158 { return SPARC_CMLL_CAPABLE?&cmll_t4_##keylen##_##mode:&camellia_##keylen##_##mode; }
162 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
163 static const EVP_CIPHER camellia_##keylen##_##mode = { \
164 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
165 flags|EVP_CIPH_##MODE##_MODE, \
167 camellia_##mode##_cipher, \
169 sizeof(EVP_CAMELLIA_KEY), \
170 NULL,NULL,NULL,NULL }; \
171 const EVP_CIPHER *EVP_camellia_##keylen##_##mode(void) \
172 { return &camellia_##keylen##_##mode; }
176 # define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
177 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
178 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
179 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
180 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
181 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
182 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
183 BLOCK_CIPHER_generic(nid, keylen, 1, 16, ctr, ctr, CTR, flags)
185 /* The subkey for Camellia is generated. */
186 static int camellia_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
187 const unsigned char *iv, int enc)
190 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
192 ret = Camellia_set_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, &dat->ks);
194 EVPerr(EVP_F_CAMELLIA_INIT_KEY, EVP_R_CAMELLIA_KEY_SETUP_FAILED);
198 mode = EVP_CIPHER_CTX_mode(ctx);
199 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
201 dat->block = (block128_f) Camellia_decrypt;
202 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
203 (cbc128_f) Camellia_cbc_encrypt : NULL;
205 dat->block = (block128_f) Camellia_encrypt;
206 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
207 (cbc128_f) Camellia_cbc_encrypt : NULL;
213 static int camellia_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
214 const unsigned char *in, size_t len)
216 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
219 (*dat->stream.cbc) (in, out, len, &dat->ks,
220 EVP_CIPHER_CTX_iv_noconst(ctx),
221 EVP_CIPHER_CTX_encrypting(ctx));
222 else if (EVP_CIPHER_CTX_encrypting(ctx))
223 CRYPTO_cbc128_encrypt(in, out, len, &dat->ks,
224 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
226 CRYPTO_cbc128_decrypt(in, out, len, &dat->ks,
227 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
232 static int camellia_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
233 const unsigned char *in, size_t len)
235 size_t bl = EVP_CIPHER_CTX_block_size(ctx);
237 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
242 for (i = 0, len -= bl; i <= len; i += bl)
243 (*dat->block) (in + i, out + i, &dat->ks);
248 static int camellia_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
249 const unsigned char *in, size_t len)
251 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
253 int num = EVP_CIPHER_CTX_num(ctx);
254 CRYPTO_ofb128_encrypt(in, out, len, &dat->ks,
255 EVP_CIPHER_CTX_iv_noconst(ctx), &num, dat->block);
256 EVP_CIPHER_CTX_set_num(ctx, num);
260 static int camellia_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
261 const unsigned char *in, size_t len)
263 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
265 int num = EVP_CIPHER_CTX_num(ctx);
266 CRYPTO_cfb128_encrypt(in, out, len, &dat->ks,
267 EVP_CIPHER_CTX_iv_noconst(ctx), &num, EVP_CIPHER_CTX_encrypting(ctx), dat->block);
268 EVP_CIPHER_CTX_set_num(ctx, num);
272 static int camellia_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
273 const unsigned char *in, size_t len)
275 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
277 int num = EVP_CIPHER_CTX_num(ctx);
278 CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks,
279 EVP_CIPHER_CTX_iv_noconst(ctx), &num, EVP_CIPHER_CTX_encrypting(ctx), dat->block);
280 EVP_CIPHER_CTX_set_num(ctx, num);
284 static int camellia_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
285 const unsigned char *in, size_t len)
287 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
289 if (EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS)) {
290 int num = EVP_CIPHER_CTX_num(ctx);
291 CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks,
292 EVP_CIPHER_CTX_iv_noconst(ctx), &num, EVP_CIPHER_CTX_encrypting(ctx), dat->block);
293 EVP_CIPHER_CTX_set_num(ctx, num);
297 while (len >= MAXBITCHUNK) {
298 int num = EVP_CIPHER_CTX_num(ctx);
299 CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks,
300 EVP_CIPHER_CTX_iv_noconst(ctx), &num, EVP_CIPHER_CTX_encrypting(ctx), dat->block);
301 EVP_CIPHER_CTX_set_num(ctx, num);
307 int num = EVP_CIPHER_CTX_num(ctx);
308 CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks,
309 EVP_CIPHER_CTX_iv_noconst(ctx), &num, EVP_CIPHER_CTX_encrypting(ctx), dat->block);
310 EVP_CIPHER_CTX_set_num(ctx, num);
316 static int camellia_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
317 const unsigned char *in, size_t len)
319 unsigned int num = EVP_CIPHER_CTX_num(ctx);
320 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
323 CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks,
324 EVP_CIPHER_CTX_iv_noconst(ctx),
325 EVP_CIPHER_CTX_buf_noconst(ctx), &num,
328 CRYPTO_ctr128_encrypt(in, out, len, &dat->ks,
329 EVP_CIPHER_CTX_iv_noconst(ctx),
330 EVP_CIPHER_CTX_buf_noconst(ctx), &num,
332 EVP_CIPHER_CTX_set_num(ctx, num);
336 BLOCK_CIPHER_generic_pack(NID_camellia, 128, 0)
337 BLOCK_CIPHER_generic_pack(NID_camellia, 192, 0)
338 BLOCK_CIPHER_generic_pack(NID_camellia, 256, 0)