2 * Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (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 "internal/evp_int.h"
21 # include "modes_lcl.h"
23 static int camellia_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
24 const unsigned char *iv, int enc);
26 /* Camellia subkey Structure */
36 # define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
38 /* Attribute operation for Camellia */
39 # define data(ctx) EVP_C_DATA(EVP_CAMELLIA_KEY,ctx)
41 # if defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
42 /* ---------^^^ this is not a typo, just a way to detect that
43 * assembler support was in general requested... */
44 # include "sparc_arch.h"
46 extern unsigned int OPENSSL_sparcv9cap_P[];
48 # define SPARC_CMLL_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_CAMELLIA)
50 void cmll_t4_set_key(const unsigned char *key, int bits, CAMELLIA_KEY *ks);
51 void cmll_t4_encrypt(const unsigned char *in, unsigned char *out,
52 const CAMELLIA_KEY *key);
53 void cmll_t4_decrypt(const unsigned char *in, unsigned char *out,
54 const CAMELLIA_KEY *key);
56 void cmll128_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
57 size_t len, const CAMELLIA_KEY *key,
59 void cmll128_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
60 size_t len, const CAMELLIA_KEY *key,
62 void cmll256_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
63 size_t len, const CAMELLIA_KEY *key,
65 void cmll256_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
66 size_t len, const CAMELLIA_KEY *key,
68 void cmll128_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
69 size_t blocks, const CAMELLIA_KEY *key,
71 void cmll256_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
72 size_t blocks, const CAMELLIA_KEY *key,
75 static int cmll_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
76 const unsigned char *iv, int enc)
79 EVP_CAMELLIA_KEY *dat =
80 (EVP_CAMELLIA_KEY *)EVP_CIPHER_CTX_get_cipher_data(ctx);
82 mode = EVP_CIPHER_CTX_mode(ctx);
83 bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
85 cmll_t4_set_key(key, bits, &dat->ks);
87 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
90 dat->block = (block128_f) cmll_t4_decrypt;
93 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
94 (cbc128_f) cmll128_t4_cbc_decrypt : NULL;
98 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
99 (cbc128_f) cmll256_t4_cbc_decrypt : NULL;
106 dat->block = (block128_f) cmll_t4_encrypt;
109 if (mode == EVP_CIPH_CBC_MODE)
110 dat->stream.cbc = (cbc128_f) cmll128_t4_cbc_encrypt;
111 else if (mode == EVP_CIPH_CTR_MODE)
112 dat->stream.ctr = (ctr128_f) cmll128_t4_ctr32_encrypt;
114 dat->stream.cbc = NULL;
118 if (mode == EVP_CIPH_CBC_MODE)
119 dat->stream.cbc = (cbc128_f) cmll256_t4_cbc_encrypt;
120 else if (mode == EVP_CIPH_CTR_MODE)
121 dat->stream.ctr = (ctr128_f) cmll256_t4_ctr32_encrypt;
123 dat->stream.cbc = NULL;
131 EVPerr(EVP_F_CMLL_T4_INIT_KEY, EVP_R_CAMELLIA_KEY_SETUP_FAILED);
138 # define cmll_t4_cbc_cipher camellia_cbc_cipher
139 static int cmll_t4_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
140 const unsigned char *in, size_t len);
142 # define cmll_t4_ecb_cipher camellia_ecb_cipher
143 static int cmll_t4_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
144 const unsigned char *in, size_t len);
146 # define cmll_t4_ofb_cipher camellia_ofb_cipher
147 static int cmll_t4_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
148 const unsigned char *in, size_t len);
150 # define cmll_t4_cfb_cipher camellia_cfb_cipher
151 static int cmll_t4_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
152 const unsigned char *in, size_t len);
154 # define cmll_t4_cfb8_cipher camellia_cfb8_cipher
155 static int cmll_t4_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
156 const unsigned char *in, size_t len);
158 # define cmll_t4_cfb1_cipher camellia_cfb1_cipher
159 static int cmll_t4_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
160 const unsigned char *in, size_t len);
162 # define cmll_t4_ctr_cipher camellia_ctr_cipher
163 static int cmll_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
164 const unsigned char *in, size_t len);
166 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
167 static const EVP_CIPHER cmll_t4_##keylen##_##mode = { \
168 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
169 flags|EVP_CIPH_##MODE##_MODE, \
171 cmll_t4_##mode##_cipher, \
173 sizeof(EVP_CAMELLIA_KEY), \
174 NULL,NULL,NULL,NULL }; \
175 static const EVP_CIPHER camellia_##keylen##_##mode = { \
176 nid##_##keylen##_##nmode,blocksize, \
178 flags|EVP_CIPH_##MODE##_MODE, \
180 camellia_##mode##_cipher, \
182 sizeof(EVP_CAMELLIA_KEY), \
183 NULL,NULL,NULL,NULL }; \
184 const EVP_CIPHER *EVP_camellia_##keylen##_##mode(void) \
185 { return SPARC_CMLL_CAPABLE?&cmll_t4_##keylen##_##mode:&camellia_##keylen##_##mode; }
189 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
190 static const EVP_CIPHER camellia_##keylen##_##mode = { \
191 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
192 flags|EVP_CIPH_##MODE##_MODE, \
194 camellia_##mode##_cipher, \
196 sizeof(EVP_CAMELLIA_KEY), \
197 NULL,NULL,NULL,NULL }; \
198 const EVP_CIPHER *EVP_camellia_##keylen##_##mode(void) \
199 { return &camellia_##keylen##_##mode; }
203 # define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
204 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
205 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
206 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
207 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
208 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
209 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
210 BLOCK_CIPHER_generic(nid, keylen, 1, 16, ctr, ctr, CTR, flags)
212 /* The subkey for Camellia is generated. */
213 static int camellia_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
214 const unsigned char *iv, int enc)
217 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
219 ret = Camellia_set_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, &dat->ks);
221 EVPerr(EVP_F_CAMELLIA_INIT_KEY, EVP_R_CAMELLIA_KEY_SETUP_FAILED);
225 mode = EVP_CIPHER_CTX_mode(ctx);
226 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
228 dat->block = (block128_f) Camellia_decrypt;
229 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
230 (cbc128_f) Camellia_cbc_encrypt : NULL;
232 dat->block = (block128_f) Camellia_encrypt;
233 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
234 (cbc128_f) Camellia_cbc_encrypt : NULL;
240 static int camellia_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
241 const unsigned char *in, size_t len)
243 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
246 (*dat->stream.cbc) (in, out, len, &dat->ks,
247 EVP_CIPHER_CTX_iv_noconst(ctx),
248 EVP_CIPHER_CTX_encrypting(ctx));
249 else if (EVP_CIPHER_CTX_encrypting(ctx))
250 CRYPTO_cbc128_encrypt(in, out, len, &dat->ks,
251 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
253 CRYPTO_cbc128_decrypt(in, out, len, &dat->ks,
254 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
259 static int camellia_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
260 const unsigned char *in, size_t len)
262 size_t bl = EVP_CIPHER_CTX_block_size(ctx);
264 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
269 for (i = 0, len -= bl; i <= len; i += bl)
270 (*dat->block) (in + i, out + i, &dat->ks);
275 static int camellia_ofb_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_ofb128_encrypt(in, out, len, &dat->ks,
282 EVP_CIPHER_CTX_iv_noconst(ctx), &num, dat->block);
283 EVP_CIPHER_CTX_set_num(ctx, num);
287 static int camellia_cfb_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 int num = EVP_CIPHER_CTX_num(ctx);
293 CRYPTO_cfb128_encrypt(in, out, len, &dat->ks,
294 EVP_CIPHER_CTX_iv_noconst(ctx), &num, EVP_CIPHER_CTX_encrypting(ctx), dat->block);
295 EVP_CIPHER_CTX_set_num(ctx, num);
299 static int camellia_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
300 const unsigned char *in, size_t len)
302 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
304 int num = EVP_CIPHER_CTX_num(ctx);
305 CRYPTO_cfb128_8_encrypt(in, out, len, &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);
311 static int camellia_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
312 const unsigned char *in, size_t len)
314 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
316 if (EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS)) {
317 int num = EVP_CIPHER_CTX_num(ctx);
318 CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks,
319 EVP_CIPHER_CTX_iv_noconst(ctx), &num, EVP_CIPHER_CTX_encrypting(ctx), dat->block);
320 EVP_CIPHER_CTX_set_num(ctx, num);
324 while (len >= MAXBITCHUNK) {
325 int num = EVP_CIPHER_CTX_num(ctx);
326 CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks,
327 EVP_CIPHER_CTX_iv_noconst(ctx), &num, EVP_CIPHER_CTX_encrypting(ctx), dat->block);
329 EVP_CIPHER_CTX_set_num(ctx, num);
332 int num = EVP_CIPHER_CTX_num(ctx);
333 CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks,
334 EVP_CIPHER_CTX_iv_noconst(ctx), &num, EVP_CIPHER_CTX_encrypting(ctx), dat->block);
335 EVP_CIPHER_CTX_set_num(ctx, num);
341 static int camellia_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
342 const unsigned char *in, size_t len)
344 unsigned int num = EVP_CIPHER_CTX_num(ctx);
345 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
348 CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks,
349 EVP_CIPHER_CTX_iv_noconst(ctx),
350 EVP_CIPHER_CTX_buf_noconst(ctx), &num,
353 CRYPTO_ctr128_encrypt(in, out, len, &dat->ks,
354 EVP_CIPHER_CTX_iv_noconst(ctx),
355 EVP_CIPHER_CTX_buf_noconst(ctx), &num,
357 EVP_CIPHER_CTX_set_num(ctx, num);
361 BLOCK_CIPHER_generic_pack(NID_camellia, 128, 0)
362 BLOCK_CIPHER_generic_pack(NID_camellia, 192, 0)
363 BLOCK_CIPHER_generic_pack(NID_camellia, 256, 0)