2 * Copyright 2006-2020 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"
27 static int camellia_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
28 const unsigned char *iv, int enc);
30 /* Camellia subkey Structure */
40 #define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
42 /* Attribute operation for Camellia */
43 #define data(ctx) EVP_C_DATA(EVP_CAMELLIA_KEY,ctx)
45 #if defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
46 /* ---------^^^ this is not a typo, just a way to detect that
47 * assembler support was in general requested... */
48 # include "sparc_arch.h"
51 static int cmll_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
52 const unsigned char *iv, int enc)
55 EVP_CAMELLIA_KEY *dat =
56 (EVP_CAMELLIA_KEY *)EVP_CIPHER_CTX_get_cipher_data(ctx);
58 mode = EVP_CIPHER_CTX_mode(ctx);
59 bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
61 cmll_t4_set_key(key, bits, &dat->ks);
63 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
66 dat->block = (block128_f) cmll_t4_decrypt;
69 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
70 (cbc128_f) cmll128_t4_cbc_decrypt : NULL;
74 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
75 (cbc128_f) cmll256_t4_cbc_decrypt : NULL;
82 dat->block = (block128_f) cmll_t4_encrypt;
85 if (mode == EVP_CIPH_CBC_MODE)
86 dat->stream.cbc = (cbc128_f) cmll128_t4_cbc_encrypt;
87 else if (mode == EVP_CIPH_CTR_MODE)
88 dat->stream.ctr = (ctr128_f) cmll128_t4_ctr32_encrypt;
90 dat->stream.cbc = NULL;
94 if (mode == EVP_CIPH_CBC_MODE)
95 dat->stream.cbc = (cbc128_f) cmll256_t4_cbc_encrypt;
96 else if (mode == EVP_CIPH_CTR_MODE)
97 dat->stream.ctr = (ctr128_f) cmll256_t4_ctr32_encrypt;
99 dat->stream.cbc = NULL;
107 EVPerr(EVP_F_CMLL_T4_INIT_KEY, EVP_R_CAMELLIA_KEY_SETUP_FAILED);
114 # define cmll_t4_cbc_cipher camellia_cbc_cipher
115 static int cmll_t4_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
116 const unsigned char *in, size_t len);
118 # define cmll_t4_ecb_cipher camellia_ecb_cipher
119 static int cmll_t4_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
120 const unsigned char *in, size_t len);
122 # define cmll_t4_ofb_cipher camellia_ofb_cipher
123 static int cmll_t4_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
124 const unsigned char *in, size_t len);
126 # define cmll_t4_cfb_cipher camellia_cfb_cipher
127 static int cmll_t4_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
128 const unsigned char *in, size_t len);
130 # define cmll_t4_cfb8_cipher camellia_cfb8_cipher
131 static int cmll_t4_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
132 const unsigned char *in, size_t len);
134 # define cmll_t4_cfb1_cipher camellia_cfb1_cipher
135 static int cmll_t4_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
136 const unsigned char *in, size_t len);
138 # define cmll_t4_ctr_cipher camellia_ctr_cipher
139 static int cmll_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
140 const unsigned char *in, size_t len);
142 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
143 static const EVP_CIPHER cmll_t4_##keylen##_##mode = { \
144 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
145 flags|EVP_CIPH_##MODE##_MODE, \
147 cmll_t4_##mode##_cipher, \
149 sizeof(EVP_CAMELLIA_KEY), \
150 NULL,NULL,NULL,NULL }; \
151 static const EVP_CIPHER camellia_##keylen##_##mode = { \
152 nid##_##keylen##_##nmode,blocksize, \
154 flags|EVP_CIPH_##MODE##_MODE, \
156 camellia_##mode##_cipher, \
158 sizeof(EVP_CAMELLIA_KEY), \
159 NULL,NULL,NULL,NULL }; \
160 const EVP_CIPHER *EVP_camellia_##keylen##_##mode(void) \
161 { return SPARC_CMLL_CAPABLE?&cmll_t4_##keylen##_##mode:&camellia_##keylen##_##mode; }
165 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
166 static const EVP_CIPHER camellia_##keylen##_##mode = { \
167 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
168 flags|EVP_CIPH_##MODE##_MODE, \
170 camellia_##mode##_cipher, \
172 sizeof(EVP_CAMELLIA_KEY), \
173 NULL,NULL,NULL,NULL }; \
174 const EVP_CIPHER *EVP_camellia_##keylen##_##mode(void) \
175 { return &camellia_##keylen##_##mode; }
179 #define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
180 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
181 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
182 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
183 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
184 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
185 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
186 BLOCK_CIPHER_generic(nid, keylen, 1, 16, ctr, ctr, CTR, flags)
188 /* The subkey for Camellia is generated. */
189 static int camellia_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
190 const unsigned char *iv, int enc)
193 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
195 ret = Camellia_set_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, &dat->ks);
197 EVPerr(EVP_F_CAMELLIA_INIT_KEY, EVP_R_CAMELLIA_KEY_SETUP_FAILED);
201 mode = EVP_CIPHER_CTX_mode(ctx);
202 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
204 dat->block = (block128_f) Camellia_decrypt;
205 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
206 (cbc128_f) Camellia_cbc_encrypt : NULL;
208 dat->block = (block128_f) Camellia_encrypt;
209 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
210 (cbc128_f) Camellia_cbc_encrypt : NULL;
216 static int camellia_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
217 const unsigned char *in, size_t len)
219 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
222 (*dat->stream.cbc) (in, out, len, &dat->ks,
223 EVP_CIPHER_CTX_iv_noconst(ctx),
224 EVP_CIPHER_CTX_encrypting(ctx));
225 else if (EVP_CIPHER_CTX_encrypting(ctx))
226 CRYPTO_cbc128_encrypt(in, out, len, &dat->ks,
227 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
229 CRYPTO_cbc128_decrypt(in, out, len, &dat->ks,
230 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
235 static int camellia_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
236 const unsigned char *in, size_t len)
238 size_t bl = EVP_CIPHER_CTX_block_size(ctx);
240 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
245 for (i = 0, len -= bl; i <= len; i += bl)
246 (*dat->block) (in + i, out + i, &dat->ks);
251 static int camellia_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
252 const unsigned char *in, size_t len)
254 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
256 int num = EVP_CIPHER_CTX_num(ctx);
257 CRYPTO_ofb128_encrypt(in, out, len, &dat->ks,
258 EVP_CIPHER_CTX_iv_noconst(ctx), &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,
270 EVP_CIPHER_CTX_iv_noconst(ctx), &num, 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,
282 EVP_CIPHER_CTX_iv_noconst(ctx), &num, 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,
295 EVP_CIPHER_CTX_iv_noconst(ctx), &num, 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 EVP_CIPHER_CTX_iv_noconst(ctx), &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 EVP_CIPHER_CTX_iv_noconst(ctx), &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 unsigned int num = EVP_CIPHER_CTX_num(ctx);
323 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
326 CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks,
327 EVP_CIPHER_CTX_iv_noconst(ctx),
328 EVP_CIPHER_CTX_buf_noconst(ctx), &num,
331 CRYPTO_ctr128_encrypt(in, out, len, &dat->ks,
332 EVP_CIPHER_CTX_iv_noconst(ctx),
333 EVP_CIPHER_CTX_buf_noconst(ctx), &num,
335 EVP_CIPHER_CTX_set_num(ctx, num);
339 BLOCK_CIPHER_generic_pack(NID_camellia, 128, 0)
340 BLOCK_CIPHER_generic_pack(NID_camellia, 192, 0)
341 BLOCK_CIPHER_generic_pack(NID_camellia, 256, 0)