2 * Copyright 2006-2021 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>
18 #include <openssl/evp.h>
19 #include <openssl/err.h>
22 #include <openssl/camellia.h>
23 #include "crypto/evp.h"
24 #include "crypto/modes.h"
25 #include "crypto/cmll_platform.h"
26 #include "evp_local.h"
28 static int camellia_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
29 const unsigned char *iv
, int enc
);
31 /* Camellia subkey Structure */
41 #define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
43 /* Attribute operation for Camellia */
44 #define data(ctx) EVP_C_DATA(EVP_CAMELLIA_KEY,ctx)
46 #if defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
47 /* ---------^^^ this is not a typo, just a way to detect that
48 * assembler support was in general requested... */
49 # include "sparc_arch.h"
52 static int cmll_t4_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
53 const unsigned char *iv
, int enc
)
56 EVP_CAMELLIA_KEY
*dat
=
57 (EVP_CAMELLIA_KEY
*)EVP_CIPHER_CTX_get_cipher_data(ctx
);
59 mode
= EVP_CIPHER_CTX_mode(ctx
);
60 bits
= EVP_CIPHER_CTX_key_length(ctx
) * 8;
62 cmll_t4_set_key(key
, bits
, &dat
->ks
);
64 if ((mode
== EVP_CIPH_ECB_MODE
|| mode
== EVP_CIPH_CBC_MODE
)
67 dat
->block
= (block128_f
) cmll_t4_decrypt
;
70 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
71 (cbc128_f
) cmll128_t4_cbc_decrypt
: NULL
;
75 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
76 (cbc128_f
) cmll256_t4_cbc_decrypt
: NULL
;
83 dat
->block
= (block128_f
) cmll_t4_encrypt
;
86 if (mode
== EVP_CIPH_CBC_MODE
)
87 dat
->stream
.cbc
= (cbc128_f
) cmll128_t4_cbc_encrypt
;
88 else if (mode
== EVP_CIPH_CTR_MODE
)
89 dat
->stream
.ctr
= (ctr128_f
) cmll128_t4_ctr32_encrypt
;
91 dat
->stream
.cbc
= NULL
;
95 if (mode
== EVP_CIPH_CBC_MODE
)
96 dat
->stream
.cbc
= (cbc128_f
) cmll256_t4_cbc_encrypt
;
97 else if (mode
== EVP_CIPH_CTR_MODE
)
98 dat
->stream
.ctr
= (ctr128_f
) cmll256_t4_ctr32_encrypt
;
100 dat
->stream
.cbc
= NULL
;
108 ERR_raise(ERR_LIB_EVP
, EVP_R_CAMELLIA_KEY_SETUP_FAILED
);
115 # define cmll_t4_cbc_cipher camellia_cbc_cipher
116 static int cmll_t4_cbc_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
117 const unsigned char *in
, size_t len
);
119 # define cmll_t4_ecb_cipher camellia_ecb_cipher
120 static int cmll_t4_ecb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
121 const unsigned char *in
, size_t len
);
123 # define cmll_t4_ofb_cipher camellia_ofb_cipher
124 static int cmll_t4_ofb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
125 const unsigned char *in
, size_t len
);
127 # define cmll_t4_cfb_cipher camellia_cfb_cipher
128 static int cmll_t4_cfb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
129 const unsigned char *in
, size_t len
);
131 # define cmll_t4_cfb8_cipher camellia_cfb8_cipher
132 static int cmll_t4_cfb8_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
133 const unsigned char *in
, size_t len
);
135 # define cmll_t4_cfb1_cipher camellia_cfb1_cipher
136 static int cmll_t4_cfb1_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
137 const unsigned char *in
, size_t len
);
139 # define cmll_t4_ctr_cipher camellia_ctr_cipher
140 static int cmll_t4_ctr_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
141 const unsigned char *in
, size_t len
);
143 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
144 static const EVP_CIPHER cmll_t4_##keylen##_##mode = { \
145 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
146 flags|EVP_CIPH_##MODE##_MODE, \
149 cmll_t4_##mode##_cipher, \
151 sizeof(EVP_CAMELLIA_KEY), \
152 NULL,NULL,NULL,NULL }; \
153 static const EVP_CIPHER camellia_##keylen##_##mode = { \
154 nid##_##keylen##_##nmode,blocksize, \
156 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, \
174 camellia_##mode##_cipher, \
176 sizeof(EVP_CAMELLIA_KEY), \
177 NULL,NULL,NULL,NULL }; \
178 const EVP_CIPHER *EVP_camellia_##keylen##_##mode(void) \
179 { return &camellia_##keylen##_##mode; }
183 #define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
184 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
185 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
186 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
187 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
188 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
189 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
190 BLOCK_CIPHER_generic(nid, keylen, 1, 16, ctr, ctr, CTR, flags)
192 /* The subkey for Camellia is generated. */
193 static int camellia_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
194 const unsigned char *iv
, int enc
)
197 EVP_CAMELLIA_KEY
*dat
= EVP_C_DATA(EVP_CAMELLIA_KEY
,ctx
);
199 ret
= Camellia_set_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8, &dat
->ks
);
201 ERR_raise(ERR_LIB_EVP
, EVP_R_CAMELLIA_KEY_SETUP_FAILED
);
205 mode
= EVP_CIPHER_CTX_mode(ctx
);
206 if ((mode
== EVP_CIPH_ECB_MODE
|| mode
== EVP_CIPH_CBC_MODE
)
208 dat
->block
= (block128_f
) Camellia_decrypt
;
209 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
210 (cbc128_f
) Camellia_cbc_encrypt
: NULL
;
212 dat
->block
= (block128_f
) Camellia_encrypt
;
213 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
214 (cbc128_f
) Camellia_cbc_encrypt
: NULL
;
220 static int camellia_cbc_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
221 const unsigned char *in
, size_t len
)
223 EVP_CAMELLIA_KEY
*dat
= EVP_C_DATA(EVP_CAMELLIA_KEY
,ctx
);
226 (*dat
->stream
.cbc
) (in
, out
, len
, &dat
->ks
, ctx
->iv
,
227 EVP_CIPHER_CTX_encrypting(ctx
));
228 else if (EVP_CIPHER_CTX_encrypting(ctx
))
229 CRYPTO_cbc128_encrypt(in
, out
, len
, &dat
->ks
, ctx
->iv
, dat
->block
);
231 CRYPTO_cbc128_decrypt(in
, out
, len
, &dat
->ks
, ctx
->iv
, dat
->block
);
236 static int camellia_ecb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
237 const unsigned char *in
, size_t len
)
239 size_t bl
= EVP_CIPHER_CTX_block_size(ctx
);
241 EVP_CAMELLIA_KEY
*dat
= EVP_C_DATA(EVP_CAMELLIA_KEY
,ctx
);
246 for (i
= 0, len
-= bl
; i
<= len
; i
+= bl
)
247 (*dat
->block
) (in
+ i
, out
+ i
, &dat
->ks
);
252 static int camellia_ofb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
253 const unsigned char *in
, size_t len
)
255 EVP_CAMELLIA_KEY
*dat
= EVP_C_DATA(EVP_CAMELLIA_KEY
,ctx
);
257 int num
= EVP_CIPHER_CTX_num(ctx
);
258 CRYPTO_ofb128_encrypt(in
, out
, len
, &dat
->ks
, ctx
->iv
, &num
, dat
->block
);
259 EVP_CIPHER_CTX_set_num(ctx
, num
);
263 static int camellia_cfb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
264 const unsigned char *in
, size_t len
)
266 EVP_CAMELLIA_KEY
*dat
= EVP_C_DATA(EVP_CAMELLIA_KEY
,ctx
);
268 int num
= EVP_CIPHER_CTX_num(ctx
);
269 CRYPTO_cfb128_encrypt(in
, out
, len
, &dat
->ks
, ctx
->iv
, &num
,
270 EVP_CIPHER_CTX_encrypting(ctx
), dat
->block
);
271 EVP_CIPHER_CTX_set_num(ctx
, num
);
275 static int camellia_cfb8_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
276 const unsigned char *in
, size_t len
)
278 EVP_CAMELLIA_KEY
*dat
= EVP_C_DATA(EVP_CAMELLIA_KEY
,ctx
);
280 int num
= EVP_CIPHER_CTX_num(ctx
);
281 CRYPTO_cfb128_8_encrypt(in
, out
, len
, &dat
->ks
, ctx
->iv
, &num
,
282 EVP_CIPHER_CTX_encrypting(ctx
), dat
->block
);
283 EVP_CIPHER_CTX_set_num(ctx
, num
);
287 static int camellia_cfb1_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
288 const unsigned char *in
, size_t len
)
290 EVP_CAMELLIA_KEY
*dat
= EVP_C_DATA(EVP_CAMELLIA_KEY
,ctx
);
292 if (EVP_CIPHER_CTX_test_flags(ctx
, EVP_CIPH_FLAG_LENGTH_BITS
)) {
293 int num
= EVP_CIPHER_CTX_num(ctx
);
294 CRYPTO_cfb128_1_encrypt(in
, out
, len
, &dat
->ks
, ctx
->iv
, &num
,
295 EVP_CIPHER_CTX_encrypting(ctx
), dat
->block
);
296 EVP_CIPHER_CTX_set_num(ctx
, num
);
300 while (len
>= MAXBITCHUNK
) {
301 int num
= EVP_CIPHER_CTX_num(ctx
);
302 CRYPTO_cfb128_1_encrypt(in
, out
, MAXBITCHUNK
* 8, &dat
->ks
,
303 ctx
->iv
, &num
, EVP_CIPHER_CTX_encrypting(ctx
), dat
->block
);
304 EVP_CIPHER_CTX_set_num(ctx
, num
);
310 int num
= EVP_CIPHER_CTX_num(ctx
);
311 CRYPTO_cfb128_1_encrypt(in
, out
, len
* 8, &dat
->ks
,
312 ctx
->iv
, &num
, EVP_CIPHER_CTX_encrypting(ctx
), dat
->block
);
313 EVP_CIPHER_CTX_set_num(ctx
, num
);
319 static int camellia_ctr_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
320 const unsigned char *in
, size_t len
)
322 int snum
= EVP_CIPHER_CTX_num(ctx
);
324 EVP_CAMELLIA_KEY
*dat
= EVP_C_DATA(EVP_CAMELLIA_KEY
,ctx
);
330 CRYPTO_ctr128_encrypt_ctr32(in
, out
, len
, &dat
->ks
, ctx
->iv
,
331 EVP_CIPHER_CTX_buf_noconst(ctx
), &num
,
334 CRYPTO_ctr128_encrypt(in
, out
, len
, &dat
->ks
, ctx
->iv
,
335 EVP_CIPHER_CTX_buf_noconst(ctx
), &num
,
337 EVP_CIPHER_CTX_set_num(ctx
, num
);
341 BLOCK_CIPHER_generic_pack(NID_camellia
, 128, 0)
342 BLOCK_CIPHER_generic_pack(NID_camellia
, 192, 0)
343 BLOCK_CIPHER_generic_pack(NID_camellia
, 256, 0)