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 "crypto/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_get_mode(ctx);
59 bits = EVP_CIPHER_CTX_get_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 ERR_raise(ERR_LIB_EVP, 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, \
148 cmll_t4_##mode##_cipher, \
150 sizeof(EVP_CAMELLIA_KEY), \
151 NULL,NULL,NULL,NULL }; \
152 static const EVP_CIPHER camellia_##keylen##_##mode = { \
153 nid##_##keylen##_##nmode,blocksize, \
155 flags|EVP_CIPH_##MODE##_MODE, \
158 camellia_##mode##_cipher, \
160 sizeof(EVP_CAMELLIA_KEY), \
161 NULL,NULL,NULL,NULL }; \
162 const EVP_CIPHER *EVP_camellia_##keylen##_##mode(void) \
163 { return SPARC_CMLL_CAPABLE?&cmll_t4_##keylen##_##mode:&camellia_##keylen##_##mode; }
167 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
168 static const EVP_CIPHER camellia_##keylen##_##mode = { \
169 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
170 flags|EVP_CIPH_##MODE##_MODE, \
173 camellia_##mode##_cipher, \
175 sizeof(EVP_CAMELLIA_KEY), \
176 NULL,NULL,NULL,NULL }; \
177 const EVP_CIPHER *EVP_camellia_##keylen##_##mode(void) \
178 { return &camellia_##keylen##_##mode; }
182 #define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
183 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
184 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
185 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
186 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
187 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
188 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
189 BLOCK_CIPHER_generic(nid, keylen, 1, 16, ctr, ctr, CTR, flags)
191 /* The subkey for Camellia is generated. */
192 static int camellia_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
193 const unsigned char *iv, int enc)
196 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY, ctx);
198 ret = Camellia_set_key(key, EVP_CIPHER_CTX_get_key_length(ctx) * 8,
201 ERR_raise(ERR_LIB_EVP, EVP_R_CAMELLIA_KEY_SETUP_FAILED);
205 mode = EVP_CIPHER_CTX_get_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_is_encrypting(ctx));
228 else if (EVP_CIPHER_CTX_is_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_get_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_get_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_get_num(ctx);
269 CRYPTO_cfb128_encrypt(in, out, len, &dat->ks, ctx->iv, &num,
270 EVP_CIPHER_CTX_is_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_get_num(ctx);
281 CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks, ctx->iv, &num,
282 EVP_CIPHER_CTX_is_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_get_num(ctx);
294 CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks, ctx->iv, &num,
295 EVP_CIPHER_CTX_is_encrypting(ctx),
297 EVP_CIPHER_CTX_set_num(ctx, num);
301 while (len >= MAXBITCHUNK) {
302 int num = EVP_CIPHER_CTX_get_num(ctx);
303 CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks,
305 EVP_CIPHER_CTX_is_encrypting(ctx),
307 EVP_CIPHER_CTX_set_num(ctx, num);
313 int num = EVP_CIPHER_CTX_get_num(ctx);
314 CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks,
316 EVP_CIPHER_CTX_is_encrypting(ctx),
318 EVP_CIPHER_CTX_set_num(ctx, num);
324 static int camellia_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
325 const unsigned char *in, size_t len)
327 int snum = EVP_CIPHER_CTX_get_num(ctx);
329 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY, ctx);
335 CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks, ctx->iv,
336 EVP_CIPHER_CTX_buf_noconst(ctx),
340 CRYPTO_ctr128_encrypt(in, out, len, &dat->ks, ctx->iv,
341 EVP_CIPHER_CTX_buf_noconst(ctx), &num,
343 EVP_CIPHER_CTX_set_num(ctx, num);
347 BLOCK_CIPHER_generic_pack(NID_camellia, 128, 0)
348 BLOCK_CIPHER_generic_pack(NID_camellia, 192, 0)
349 BLOCK_CIPHER_generic_pack(NID_camellia, 256, 0)