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_get_mode(ctx);
60 bits = EVP_CIPHER_CTX_get_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_get_key_length(ctx) * 8,
202 ERR_raise(ERR_LIB_EVP, EVP_R_CAMELLIA_KEY_SETUP_FAILED);
206 mode = EVP_CIPHER_CTX_get_mode(ctx);
207 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
209 dat->block = (block128_f) Camellia_decrypt;
210 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
211 (cbc128_f) Camellia_cbc_encrypt : NULL;
213 dat->block = (block128_f) Camellia_encrypt;
214 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
215 (cbc128_f) Camellia_cbc_encrypt : NULL;
221 static int camellia_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
222 const unsigned char *in, size_t len)
224 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
227 (*dat->stream.cbc) (in, out, len, &dat->ks, ctx->iv,
228 EVP_CIPHER_CTX_is_encrypting(ctx));
229 else if (EVP_CIPHER_CTX_is_encrypting(ctx))
230 CRYPTO_cbc128_encrypt(in, out, len, &dat->ks, ctx->iv, dat->block);
232 CRYPTO_cbc128_decrypt(in, out, len, &dat->ks, ctx->iv, dat->block);
237 static int camellia_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
238 const unsigned char *in, size_t len)
240 size_t bl = EVP_CIPHER_CTX_get_block_size(ctx);
242 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
247 for (i = 0, len -= bl; i <= len; i += bl)
248 (*dat->block) (in + i, out + i, &dat->ks);
253 static int camellia_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
254 const unsigned char *in, size_t len)
256 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
258 int num = EVP_CIPHER_CTX_get_num(ctx);
259 CRYPTO_ofb128_encrypt(in, out, len, &dat->ks, ctx->iv, &num, dat->block);
260 EVP_CIPHER_CTX_set_num(ctx, num);
264 static int camellia_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
265 const unsigned char *in, size_t len)
267 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
269 int num = EVP_CIPHER_CTX_get_num(ctx);
270 CRYPTO_cfb128_encrypt(in, out, len, &dat->ks, ctx->iv, &num,
271 EVP_CIPHER_CTX_is_encrypting(ctx), dat->block);
272 EVP_CIPHER_CTX_set_num(ctx, num);
276 static int camellia_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
277 const unsigned char *in, size_t len)
279 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
281 int num = EVP_CIPHER_CTX_get_num(ctx);
282 CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks, ctx->iv, &num,
283 EVP_CIPHER_CTX_is_encrypting(ctx), dat->block);
284 EVP_CIPHER_CTX_set_num(ctx, num);
288 static int camellia_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
289 const unsigned char *in, size_t len)
291 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
293 if (EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS)) {
294 int num = EVP_CIPHER_CTX_get_num(ctx);
295 CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks, ctx->iv, &num,
296 EVP_CIPHER_CTX_is_encrypting(ctx),
298 EVP_CIPHER_CTX_set_num(ctx, num);
302 while (len >= MAXBITCHUNK) {
303 int num = EVP_CIPHER_CTX_get_num(ctx);
304 CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks,
306 EVP_CIPHER_CTX_is_encrypting(ctx),
308 EVP_CIPHER_CTX_set_num(ctx, num);
314 int num = EVP_CIPHER_CTX_get_num(ctx);
315 CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks,
317 EVP_CIPHER_CTX_is_encrypting(ctx),
319 EVP_CIPHER_CTX_set_num(ctx, num);
325 static int camellia_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
326 const unsigned char *in, size_t len)
328 int snum = EVP_CIPHER_CTX_get_num(ctx);
330 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
336 CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks, ctx->iv,
337 EVP_CIPHER_CTX_buf_noconst(ctx),
341 CRYPTO_ctr128_encrypt(in, out, len, &dat->ks, ctx->iv,
342 EVP_CIPHER_CTX_buf_noconst(ctx), &num,
344 EVP_CIPHER_CTX_set_num(ctx, num);
348 BLOCK_CIPHER_generic_pack(NID_camellia, 128, 0)
349 BLOCK_CIPHER_generic_pack(NID_camellia, 192, 0)
350 BLOCK_CIPHER_generic_pack(NID_camellia, 256, 0)