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
11 * Camellia low level APIs are deprecated for public use, but still ok for
14 #include "internal/deprecated.h"
16 #include <openssl/opensslconf.h>
17 #ifdef OPENSSL_NO_CAMELLIA
18 NON_EMPTY_TRANSLATION_UNIT
21 # include <openssl/evp.h>
22 # include <openssl/err.h>
25 # include <openssl/camellia.h>
26 # include "crypto/evp.h"
27 # include "crypto/modes.h"
28 # include "crypto/cmll_platform.h"
30 static int camellia_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
31 const unsigned char *iv, int enc);
33 /* Camellia subkey Structure */
43 # define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
45 /* Attribute operation for Camellia */
46 # define data(ctx) EVP_C_DATA(EVP_CAMELLIA_KEY,ctx)
48 # if defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
49 /* ---------^^^ this is not a typo, just a way to detect that
50 * assembler support was in general requested... */
51 # include "sparc_arch.h"
54 static int cmll_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
55 const unsigned char *iv, int enc)
58 EVP_CAMELLIA_KEY *dat =
59 (EVP_CAMELLIA_KEY *)EVP_CIPHER_CTX_get_cipher_data(ctx);
61 mode = EVP_CIPHER_CTX_mode(ctx);
62 bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
64 cmll_t4_set_key(key, bits, &dat->ks);
66 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
69 dat->block = (block128_f) cmll_t4_decrypt;
72 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
73 (cbc128_f) cmll128_t4_cbc_decrypt : NULL;
77 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
78 (cbc128_f) cmll256_t4_cbc_decrypt : NULL;
85 dat->block = (block128_f) cmll_t4_encrypt;
88 if (mode == EVP_CIPH_CBC_MODE)
89 dat->stream.cbc = (cbc128_f) cmll128_t4_cbc_encrypt;
90 else if (mode == EVP_CIPH_CTR_MODE)
91 dat->stream.ctr = (ctr128_f) cmll128_t4_ctr32_encrypt;
93 dat->stream.cbc = NULL;
97 if (mode == EVP_CIPH_CBC_MODE)
98 dat->stream.cbc = (cbc128_f) cmll256_t4_cbc_encrypt;
99 else if (mode == EVP_CIPH_CTR_MODE)
100 dat->stream.ctr = (ctr128_f) cmll256_t4_ctr32_encrypt;
102 dat->stream.cbc = NULL;
110 EVPerr(EVP_F_CMLL_T4_INIT_KEY, EVP_R_CAMELLIA_KEY_SETUP_FAILED);
117 # define cmll_t4_cbc_cipher camellia_cbc_cipher
118 static int cmll_t4_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
119 const unsigned char *in, size_t len);
121 # define cmll_t4_ecb_cipher camellia_ecb_cipher
122 static int cmll_t4_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
123 const unsigned char *in, size_t len);
125 # define cmll_t4_ofb_cipher camellia_ofb_cipher
126 static int cmll_t4_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
127 const unsigned char *in, size_t len);
129 # define cmll_t4_cfb_cipher camellia_cfb_cipher
130 static int cmll_t4_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
131 const unsigned char *in, size_t len);
133 # define cmll_t4_cfb8_cipher camellia_cfb8_cipher
134 static int cmll_t4_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
135 const unsigned char *in, size_t len);
137 # define cmll_t4_cfb1_cipher camellia_cfb1_cipher
138 static int cmll_t4_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
139 const unsigned char *in, size_t len);
141 # define cmll_t4_ctr_cipher camellia_ctr_cipher
142 static int cmll_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
143 const unsigned char *in, size_t len);
145 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
146 static const EVP_CIPHER cmll_t4_##keylen##_##mode = { \
147 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
148 flags|EVP_CIPH_##MODE##_MODE, \
150 cmll_t4_##mode##_cipher, \
152 sizeof(EVP_CAMELLIA_KEY), \
153 NULL,NULL,NULL,NULL }; \
154 static const EVP_CIPHER camellia_##keylen##_##mode = { \
155 nid##_##keylen##_##nmode,blocksize, \
157 flags|EVP_CIPH_##MODE##_MODE, \
159 camellia_##mode##_cipher, \
161 sizeof(EVP_CAMELLIA_KEY), \
162 NULL,NULL,NULL,NULL }; \
163 const EVP_CIPHER *EVP_camellia_##keylen##_##mode(void) \
164 { return SPARC_CMLL_CAPABLE?&cmll_t4_##keylen##_##mode:&camellia_##keylen##_##mode; }
168 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
169 static const EVP_CIPHER camellia_##keylen##_##mode = { \
170 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
171 flags|EVP_CIPH_##MODE##_MODE, \
173 camellia_##mode##_cipher, \
175 sizeof(EVP_CAMELLIA_KEY), \
176 NULL,NULL,NULL,NULL }; \
177 const EVP_CIPHER *EVP_camellia_##keylen##_##mode(void) \
178 { return &camellia_##keylen##_##mode; }
182 # define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
183 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
184 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
185 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
186 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
187 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
188 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
189 BLOCK_CIPHER_generic(nid, keylen, 1, 16, ctr, ctr, CTR, flags)
191 /* The subkey for Camellia is generated. */
192 static int camellia_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
193 const unsigned char *iv, int enc)
196 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
198 ret = Camellia_set_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, &dat->ks);
200 EVPerr(EVP_F_CAMELLIA_INIT_KEY, EVP_R_CAMELLIA_KEY_SETUP_FAILED);
204 mode = EVP_CIPHER_CTX_mode(ctx);
205 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
207 dat->block = (block128_f) Camellia_decrypt;
208 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
209 (cbc128_f) Camellia_cbc_encrypt : NULL;
211 dat->block = (block128_f) Camellia_encrypt;
212 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
213 (cbc128_f) Camellia_cbc_encrypt : NULL;
219 static int camellia_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
220 const unsigned char *in, size_t len)
222 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
225 (*dat->stream.cbc) (in, out, len, &dat->ks,
226 EVP_CIPHER_CTX_iv_noconst(ctx),
227 EVP_CIPHER_CTX_encrypting(ctx));
228 else if (EVP_CIPHER_CTX_encrypting(ctx))
229 CRYPTO_cbc128_encrypt(in, out, len, &dat->ks,
230 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
232 CRYPTO_cbc128_decrypt(in, out, len, &dat->ks,
233 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
238 static int camellia_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
239 const unsigned char *in, size_t len)
241 size_t bl = EVP_CIPHER_CTX_block_size(ctx);
243 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
248 for (i = 0, len -= bl; i <= len; i += bl)
249 (*dat->block) (in + i, out + i, &dat->ks);
254 static int camellia_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
255 const unsigned char *in, size_t len)
257 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
259 int num = EVP_CIPHER_CTX_num(ctx);
260 CRYPTO_ofb128_encrypt(in, out, len, &dat->ks,
261 EVP_CIPHER_CTX_iv_noconst(ctx), &num, dat->block);
262 EVP_CIPHER_CTX_set_num(ctx, num);
266 static int camellia_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
267 const unsigned char *in, size_t len)
269 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
271 int num = EVP_CIPHER_CTX_num(ctx);
272 CRYPTO_cfb128_encrypt(in, out, len, &dat->ks,
273 EVP_CIPHER_CTX_iv_noconst(ctx), &num, EVP_CIPHER_CTX_encrypting(ctx), dat->block);
274 EVP_CIPHER_CTX_set_num(ctx, num);
278 static int camellia_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
279 const unsigned char *in, size_t len)
281 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
283 int num = EVP_CIPHER_CTX_num(ctx);
284 CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks,
285 EVP_CIPHER_CTX_iv_noconst(ctx), &num, EVP_CIPHER_CTX_encrypting(ctx), dat->block);
286 EVP_CIPHER_CTX_set_num(ctx, num);
290 static int camellia_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
291 const unsigned char *in, size_t len)
293 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
295 if (EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS)) {
296 int num = EVP_CIPHER_CTX_num(ctx);
297 CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks,
298 EVP_CIPHER_CTX_iv_noconst(ctx), &num, EVP_CIPHER_CTX_encrypting(ctx), dat->block);
299 EVP_CIPHER_CTX_set_num(ctx, num);
303 while (len >= MAXBITCHUNK) {
304 int num = EVP_CIPHER_CTX_num(ctx);
305 CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks,
306 EVP_CIPHER_CTX_iv_noconst(ctx), &num, EVP_CIPHER_CTX_encrypting(ctx), dat->block);
307 EVP_CIPHER_CTX_set_num(ctx, num);
313 int num = EVP_CIPHER_CTX_num(ctx);
314 CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks,
315 EVP_CIPHER_CTX_iv_noconst(ctx), &num, EVP_CIPHER_CTX_encrypting(ctx), dat->block);
316 EVP_CIPHER_CTX_set_num(ctx, num);
322 static int camellia_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
323 const unsigned char *in, size_t len)
325 unsigned int num = EVP_CIPHER_CTX_num(ctx);
326 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
329 CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks,
330 EVP_CIPHER_CTX_iv_noconst(ctx),
331 EVP_CIPHER_CTX_buf_noconst(ctx), &num,
334 CRYPTO_ctr128_encrypt(in, out, len, &dat->ks,
335 EVP_CIPHER_CTX_iv_noconst(ctx),
336 EVP_CIPHER_CTX_buf_noconst(ctx), &num,
338 EVP_CIPHER_CTX_set_num(ctx, num);
342 BLOCK_CIPHER_generic_pack(NID_camellia, 128, 0)
343 BLOCK_CIPHER_generic_pack(NID_camellia, 192, 0)
344 BLOCK_CIPHER_generic_pack(NID_camellia, 256, 0)