1 /* ====================================================================
2 * Copyright (c) 2006 The OpenSSL Project. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in
13 * the documentation and/or other materials provided with the
16 * 3. All advertising materials mentioning features or use of this
17 * software must display the following acknowledgment:
18 * "This product includes software developed by the OpenSSL Project
19 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
21 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
22 * endorse or promote products derived from this software without
23 * prior written permission. For written permission, please contact
24 * openssl-core@openssl.org.
26 * 5. Products derived from this software may not be called "OpenSSL"
27 * nor may "OpenSSL" appear in their names without prior written
28 * permission of the OpenSSL Project.
30 * 6. Redistributions of any form whatsoever must retain the following
32 * "This product includes software developed by the OpenSSL Project
33 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
35 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
36 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
37 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
38 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
41 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
42 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
43 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
44 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
45 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
46 * OF THE POSSIBILITY OF SUCH DAMAGE.
47 * ====================================================================
49 * This product includes cryptographic software written by Eric Young
50 * (eay@cryptsoft.com). This product includes software written by Tim
51 * Hudson (tjh@cryptsoft.com).
55 #include <openssl/opensslconf.h>
56 #ifndef OPENSSL_NO_CAMELLIA
57 # include <openssl/evp.h>
58 # include <openssl/err.h>
61 # include <openssl/camellia.h>
62 # include "internal/evp_int.h"
63 # include "modes_lcl.h"
65 static int camellia_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
66 const unsigned char *iv
, int enc
);
68 /* Camellia subkey Structure */
78 # define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
80 /* Attribute operation for Camellia */
81 # define data(ctx) EVP_C_DATA(EVP_CAMELLIA_KEY,ctx)
83 # if defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
84 /* ---------^^^ this is not a typo, just a way to detect that
85 * assembler support was in general requested... */
86 # include "sparc_arch.h"
88 extern unsigned int OPENSSL_sparcv9cap_P
[];
90 # define SPARC_CMLL_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_CAMELLIA)
92 void cmll_t4_set_key(const unsigned char *key
, int bits
, CAMELLIA_KEY
*ks
);
93 void cmll_t4_encrypt(const unsigned char *in
, unsigned char *out
,
94 const CAMELLIA_KEY
*key
);
95 void cmll_t4_decrypt(const unsigned char *in
, unsigned char *out
,
96 const CAMELLIA_KEY
*key
);
98 void cmll128_t4_cbc_encrypt(const unsigned char *in
, unsigned char *out
,
99 size_t len
, const CAMELLIA_KEY
*key
,
100 unsigned char *ivec
);
101 void cmll128_t4_cbc_decrypt(const unsigned char *in
, unsigned char *out
,
102 size_t len
, const CAMELLIA_KEY
*key
,
103 unsigned char *ivec
);
104 void cmll256_t4_cbc_encrypt(const unsigned char *in
, unsigned char *out
,
105 size_t len
, const CAMELLIA_KEY
*key
,
106 unsigned char *ivec
);
107 void cmll256_t4_cbc_decrypt(const unsigned char *in
, unsigned char *out
,
108 size_t len
, const CAMELLIA_KEY
*key
,
109 unsigned char *ivec
);
110 void cmll128_t4_ctr32_encrypt(const unsigned char *in
, unsigned char *out
,
111 size_t blocks
, const CAMELLIA_KEY
*key
,
112 unsigned char *ivec
);
113 void cmll256_t4_ctr32_encrypt(const unsigned char *in
, unsigned char *out
,
114 size_t blocks
, const CAMELLIA_KEY
*key
,
115 unsigned char *ivec
);
117 static int cmll_t4_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
118 const unsigned char *iv
, int enc
)
121 EVP_CAMELLIA_KEY
*dat
= (EVP_CAMELLIA_KEY
*) EVP_CIPHER_CTX_cipher_data(ctx
);
123 mode
= EVP_CIPHER_CTX_mode(ctx
);
124 bits
= EVP_CIPHER_CTX_key_length(ctx
) * 8;
126 cmll_t4_set_key(key
, bits
, &dat
->ks
);
128 if ((mode
== EVP_CIPH_ECB_MODE
|| mode
== EVP_CIPH_CBC_MODE
)
131 dat
->block
= (block128_f
) cmll_t4_decrypt
;
134 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
135 (cbc128_f
) cmll128_t4_cbc_decrypt
: NULL
;
139 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
140 (cbc128_f
) cmll256_t4_cbc_decrypt
: NULL
;
147 dat
->block
= (block128_f
) cmll_t4_encrypt
;
150 if (mode
== EVP_CIPH_CBC_MODE
)
151 dat
->stream
.cbc
= (cbc128_f
) cmll128_t4_cbc_encrypt
;
152 else if (mode
== EVP_CIPH_CTR_MODE
)
153 dat
->stream
.ctr
= (ctr128_f
) cmll128_t4_ctr32_encrypt
;
155 dat
->stream
.cbc
= NULL
;
159 if (mode
== EVP_CIPH_CBC_MODE
)
160 dat
->stream
.cbc
= (cbc128_f
) cmll256_t4_cbc_encrypt
;
161 else if (mode
== EVP_CIPH_CTR_MODE
)
162 dat
->stream
.ctr
= (ctr128_f
) cmll256_t4_ctr32_encrypt
;
164 dat
->stream
.cbc
= NULL
;
172 EVPerr(EVP_F_CMLL_T4_INIT_KEY
, EVP_R_CAMELLIA_KEY_SETUP_FAILED
);
179 # define cmll_t4_cbc_cipher camellia_cbc_cipher
180 static int cmll_t4_cbc_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
181 const unsigned char *in
, size_t len
);
183 # define cmll_t4_ecb_cipher camellia_ecb_cipher
184 static int cmll_t4_ecb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
185 const unsigned char *in
, size_t len
);
187 # define cmll_t4_ofb_cipher camellia_ofb_cipher
188 static int cmll_t4_ofb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
189 const unsigned char *in
, size_t len
);
191 # define cmll_t4_cfb_cipher camellia_cfb_cipher
192 static int cmll_t4_cfb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
193 const unsigned char *in
, size_t len
);
195 # define cmll_t4_cfb8_cipher camellia_cfb8_cipher
196 static int cmll_t4_cfb8_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
197 const unsigned char *in
, size_t len
);
199 # define cmll_t4_cfb1_cipher camellia_cfb1_cipher
200 static int cmll_t4_cfb1_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
201 const unsigned char *in
, size_t len
);
203 # define cmll_t4_ctr_cipher camellia_ctr_cipher
204 static int cmll_t4_ctr_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
205 const unsigned char *in
, size_t len
);
207 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
208 static const EVP_CIPHER cmll_t4_##keylen##_##mode = { \
209 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
210 flags|EVP_CIPH_##MODE##_MODE, \
212 cmll_t4_##mode##_cipher, \
214 sizeof(EVP_CAMELLIA_KEY), \
215 NULL,NULL,NULL,NULL }; \
216 static const EVP_CIPHER camellia_##keylen##_##mode = { \
217 nid##_##keylen##_##nmode,blocksize, \
219 flags|EVP_CIPH_##MODE##_MODE, \
221 camellia_##mode##_cipher, \
223 sizeof(EVP_CAMELLIA_KEY), \
224 NULL,NULL,NULL,NULL }; \
225 const EVP_CIPHER *EVP_camellia_##keylen##_##mode(void) \
226 { return SPARC_CMLL_CAPABLE?&cmll_t4_##keylen##_##mode:&camellia_##keylen##_##mode; }
230 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
231 static const EVP_CIPHER camellia_##keylen##_##mode = { \
232 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
233 flags|EVP_CIPH_##MODE##_MODE, \
235 camellia_##mode##_cipher, \
237 sizeof(EVP_CAMELLIA_KEY), \
238 NULL,NULL,NULL,NULL }; \
239 const EVP_CIPHER *EVP_camellia_##keylen##_##mode(void) \
240 { return &camellia_##keylen##_##mode; }
244 # define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
245 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
246 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
247 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
248 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
249 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
250 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
251 BLOCK_CIPHER_generic(nid, keylen, 1, 16, ctr, ctr, CTR, flags)
253 /* The subkey for Camellia is generated. */
254 static int camellia_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
255 const unsigned char *iv
, int enc
)
258 EVP_CAMELLIA_KEY
*dat
= EVP_C_DATA(EVP_CAMELLIA_KEY
,ctx
);
260 ret
= Camellia_set_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8, &dat
->ks
);
262 EVPerr(EVP_F_CAMELLIA_INIT_KEY
, EVP_R_CAMELLIA_KEY_SETUP_FAILED
);
266 mode
= EVP_CIPHER_CTX_mode(ctx
);
267 if ((mode
== EVP_CIPH_ECB_MODE
|| mode
== EVP_CIPH_CBC_MODE
)
269 dat
->block
= (block128_f
) Camellia_decrypt
;
270 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
271 (cbc128_f
) Camellia_cbc_encrypt
: NULL
;
273 dat
->block
= (block128_f
) Camellia_encrypt
;
274 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
275 (cbc128_f
) Camellia_cbc_encrypt
: NULL
;
281 static int camellia_cbc_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
282 const unsigned char *in
, size_t len
)
284 EVP_CAMELLIA_KEY
*dat
= EVP_C_DATA(EVP_CAMELLIA_KEY
,ctx
);
287 (*dat
->stream
.cbc
) (in
, out
, len
, &dat
->ks
,
288 EVP_CIPHER_CTX_iv_noconst(ctx
),
289 EVP_CIPHER_CTX_encrypting(ctx
));
290 else if (EVP_CIPHER_CTX_encrypting(ctx
))
291 CRYPTO_cbc128_encrypt(in
, out
, len
, &dat
->ks
,
292 EVP_CIPHER_CTX_iv_noconst(ctx
), dat
->block
);
294 CRYPTO_cbc128_decrypt(in
, out
, len
, &dat
->ks
,
295 EVP_CIPHER_CTX_iv_noconst(ctx
), dat
->block
);
300 static int camellia_ecb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
301 const unsigned char *in
, size_t len
)
303 size_t bl
= EVP_CIPHER_CTX_block_size(ctx
);
305 EVP_CAMELLIA_KEY
*dat
= EVP_C_DATA(EVP_CAMELLIA_KEY
,ctx
);
310 for (i
= 0, len
-= bl
; i
<= len
; i
+= bl
)
311 (*dat
->block
) (in
+ i
, out
+ i
, &dat
->ks
);
316 static int camellia_ofb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
317 const unsigned char *in
, size_t len
)
319 EVP_CAMELLIA_KEY
*dat
= EVP_C_DATA(EVP_CAMELLIA_KEY
,ctx
);
321 int num
= EVP_CIPHER_CTX_num(ctx
);
322 CRYPTO_ofb128_encrypt(in
, out
, len
, &dat
->ks
,
323 EVP_CIPHER_CTX_iv_noconst(ctx
), &num
, dat
->block
);
324 EVP_CIPHER_CTX_set_num(ctx
, num
);
328 static int camellia_cfb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
329 const unsigned char *in
, size_t len
)
331 EVP_CAMELLIA_KEY
*dat
= EVP_C_DATA(EVP_CAMELLIA_KEY
,ctx
);
333 int num
= EVP_CIPHER_CTX_num(ctx
);
334 CRYPTO_cfb128_encrypt(in
, out
, len
, &dat
->ks
,
335 EVP_CIPHER_CTX_iv_noconst(ctx
), &num
, EVP_CIPHER_CTX_encrypting(ctx
), dat
->block
);
336 EVP_CIPHER_CTX_set_num(ctx
, num
);
340 static int camellia_cfb8_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
341 const unsigned char *in
, size_t len
)
343 EVP_CAMELLIA_KEY
*dat
= EVP_C_DATA(EVP_CAMELLIA_KEY
,ctx
);
345 int num
= EVP_CIPHER_CTX_num(ctx
);
346 CRYPTO_cfb128_8_encrypt(in
, out
, len
, &dat
->ks
,
347 EVP_CIPHER_CTX_iv_noconst(ctx
), &num
, EVP_CIPHER_CTX_encrypting(ctx
), dat
->block
);
348 EVP_CIPHER_CTX_set_num(ctx
, num
);
352 static int camellia_cfb1_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
353 const unsigned char *in
, size_t len
)
355 EVP_CAMELLIA_KEY
*dat
= EVP_C_DATA(EVP_CAMELLIA_KEY
,ctx
);
357 if (EVP_CIPHER_CTX_test_flags(ctx
, EVP_CIPH_FLAG_LENGTH_BITS
)) {
358 int num
= EVP_CIPHER_CTX_num(ctx
);
359 CRYPTO_cfb128_1_encrypt(in
, out
, len
, &dat
->ks
,
360 EVP_CIPHER_CTX_iv_noconst(ctx
), &num
, EVP_CIPHER_CTX_encrypting(ctx
), dat
->block
);
361 EVP_CIPHER_CTX_set_num(ctx
, num
);
365 while (len
>= MAXBITCHUNK
) {
366 int num
= EVP_CIPHER_CTX_num(ctx
);
367 CRYPTO_cfb128_1_encrypt(in
, out
, MAXBITCHUNK
* 8, &dat
->ks
,
368 EVP_CIPHER_CTX_iv_noconst(ctx
), &num
, EVP_CIPHER_CTX_encrypting(ctx
), dat
->block
);
370 EVP_CIPHER_CTX_set_num(ctx
, num
);
373 int num
= EVP_CIPHER_CTX_num(ctx
);
374 CRYPTO_cfb128_1_encrypt(in
, out
, len
* 8, &dat
->ks
,
375 EVP_CIPHER_CTX_iv_noconst(ctx
), &num
, EVP_CIPHER_CTX_encrypting(ctx
), dat
->block
);
376 EVP_CIPHER_CTX_set_num(ctx
, num
);
382 static int camellia_ctr_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
383 const unsigned char *in
, size_t len
)
385 unsigned int num
= EVP_CIPHER_CTX_num(ctx
);
386 EVP_CAMELLIA_KEY
*dat
= EVP_C_DATA(EVP_CAMELLIA_KEY
,ctx
);
389 CRYPTO_ctr128_encrypt_ctr32(in
, out
, len
, &dat
->ks
,
390 EVP_CIPHER_CTX_iv_noconst(ctx
),
391 EVP_CIPHER_CTX_buf_noconst(ctx
), &num
,
394 CRYPTO_ctr128_encrypt(in
, out
, len
, &dat
->ks
,
395 EVP_CIPHER_CTX_iv_noconst(ctx
),
396 EVP_CIPHER_CTX_buf_noconst(ctx
), &num
,
398 EVP_CIPHER_CTX_set_num(ctx
, num
);
402 BLOCK_CIPHER_generic_pack(NID_camellia
, 128, 0)
403 BLOCK_CIPHER_generic_pack(NID_camellia
, 192, 0)
404 BLOCK_CIPHER_generic_pack(NID_camellia
, 256, 0)
408 static void *dummy
= &dummy
;