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)