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source: vbox/trunk/src/libs/openssl-1.1.1g/crypto/evp/e_camellia.c@ 85622

Last change on this file since 85622 was 83916, checked in by vboxsync, 5 years ago

openssl-1.1.1g: Applied and adjusted our OpenSSL changes to 1.1.1g. bugref:9719
File size: 13.6 KB
Line 
1/*
2 * Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved.
3 *
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
8 */
9
10#include <openssl/opensslconf.h>
11#ifdef OPENSSL_NO_CAMELLIA
12NON_EMPTY_TRANSLATION_UNIT
13#else
14
15# include <openssl/evp.h>
16# include <openssl/err.h>
17# include <string.h>
18# include <assert.h>
19# include <openssl/camellia.h>
20# include "crypto/evp.h"
21# include "modes_local.h"
22
23static int camellia_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
24 const unsigned char *iv, int enc);
25
26/* Camellia subkey Structure */
27typedef struct {
28 CAMELLIA_KEY ks;
29 block128_f block;
30 union {
31 cbc128_f cbc;
32 ctr128_f ctr;
33 } stream;
34} EVP_CAMELLIA_KEY;
35
36# define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
37
38/* Attribute operation for Camellia */
39# define data(ctx) EVP_C_DATA(EVP_CAMELLIA_KEY,ctx)
40
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"
45
46extern unsigned int OPENSSL_sparcv9cap_P[];
47
48# define SPARC_CMLL_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_CAMELLIA)
49
50void cmll_t4_set_key(const unsigned char *key, int bits, CAMELLIA_KEY *ks);
51void cmll_t4_encrypt(const unsigned char *in, unsigned char *out,
52 const CAMELLIA_KEY *key);
53void cmll_t4_decrypt(const unsigned char *in, unsigned char *out,
54 const CAMELLIA_KEY *key);
55
56void cmll128_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
57 size_t len, const CAMELLIA_KEY *key,
58 unsigned char *ivec);
59void cmll128_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
60 size_t len, const CAMELLIA_KEY *key,
61 unsigned char *ivec);
62void cmll256_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
63 size_t len, const CAMELLIA_KEY *key,
64 unsigned char *ivec);
65void cmll256_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
66 size_t len, const CAMELLIA_KEY *key,
67 unsigned char *ivec);
68void cmll128_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
69 size_t blocks, const CAMELLIA_KEY *key,
70 unsigned char *ivec);
71void cmll256_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
72 size_t blocks, const CAMELLIA_KEY *key,
73 unsigned char *ivec);
74
75static int cmll_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
76 const unsigned char *iv, int enc)
77{
78 int ret, mode, bits;
79 EVP_CAMELLIA_KEY *dat =
80 (EVP_CAMELLIA_KEY *)EVP_CIPHER_CTX_get_cipher_data(ctx);
81
82 mode = EVP_CIPHER_CTX_mode(ctx);
83 bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
84
85 cmll_t4_set_key(key, bits, &dat->ks);
86
87 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
88 && !enc) {
89 ret = 0;
90 dat->block = (block128_f) cmll_t4_decrypt;
91 switch (bits) {
92 case 128:
93 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
94 (cbc128_f) cmll128_t4_cbc_decrypt : NULL;
95 break;
96 case 192:
97 case 256:
98 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
99 (cbc128_f) cmll256_t4_cbc_decrypt : NULL;
100 break;
101 default:
102 ret = -1;
103 }
104 } else {
105 ret = 0;
106 dat->block = (block128_f) cmll_t4_encrypt;
107 switch (bits) {
108 case 128:
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;
113 else
114 dat->stream.cbc = NULL;
115 break;
116 case 192:
117 case 256:
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;
122 else
123 dat->stream.cbc = NULL;
124 break;
125 default:
126 ret = -1;
127 }
128 }
129
130 if (ret < 0) {
131 EVPerr(EVP_F_CMLL_T4_INIT_KEY, EVP_R_CAMELLIA_KEY_SETUP_FAILED);
132 return 0;
133 }
134
135 return 1;
136}
137
138# define cmll_t4_cbc_cipher camellia_cbc_cipher
139static int cmll_t4_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
140 const unsigned char *in, size_t len);
141
142# define cmll_t4_ecb_cipher camellia_ecb_cipher
143static int cmll_t4_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
144 const unsigned char *in, size_t len);
145
146# define cmll_t4_ofb_cipher camellia_ofb_cipher
147static int cmll_t4_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
148 const unsigned char *in, size_t len);
149
150# define cmll_t4_cfb_cipher camellia_cfb_cipher
151static int cmll_t4_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
152 const unsigned char *in, size_t len);
153
154# define cmll_t4_cfb8_cipher camellia_cfb8_cipher
155static int cmll_t4_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
156 const unsigned char *in, size_t len);
157
158# define cmll_t4_cfb1_cipher camellia_cfb1_cipher
159static int cmll_t4_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
160 const unsigned char *in, size_t len);
161
162# define cmll_t4_ctr_cipher camellia_ctr_cipher
163static int cmll_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
164 const unsigned char *in, size_t len);
165
166# define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
167static const EVP_CIPHER cmll_t4_##keylen##_##mode = { \
168 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
169 flags|EVP_CIPH_##MODE##_MODE, \
170 cmll_t4_init_key, \
171 cmll_t4_##mode##_cipher, \
172 NULL, \
173 sizeof(EVP_CAMELLIA_KEY), \
174 NULL,NULL,NULL,NULL }; \
175static const EVP_CIPHER camellia_##keylen##_##mode = { \
176 nid##_##keylen##_##nmode,blocksize, \
177 keylen/8,ivlen, \
178 flags|EVP_CIPH_##MODE##_MODE, \
179 camellia_init_key, \
180 camellia_##mode##_cipher, \
181 NULL, \
182 sizeof(EVP_CAMELLIA_KEY), \
183 NULL,NULL,NULL,NULL }; \
184const EVP_CIPHER *EVP_camellia_##keylen##_##mode(void) \
185{ return SPARC_CMLL_CAPABLE?&cmll_t4_##keylen##_##mode:&camellia_##keylen##_##mode; }
186
187# else
188
189# define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
190static const EVP_CIPHER camellia_##keylen##_##mode = { \
191 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
192 flags|EVP_CIPH_##MODE##_MODE, \
193 camellia_init_key, \
194 camellia_##mode##_cipher, \
195 NULL, \
196 sizeof(EVP_CAMELLIA_KEY), \
197 NULL,NULL,NULL,NULL }; \
198const EVP_CIPHER *EVP_camellia_##keylen##_##mode(void) \
199{ return &camellia_##keylen##_##mode; }
200
201# endif
202
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)
211
212/* The subkey for Camellia is generated. */
213static int camellia_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
214 const unsigned char *iv, int enc)
215{
216 int ret, mode;
217 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
218
219 ret = Camellia_set_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, &dat->ks);
220 if (ret < 0) {
221 EVPerr(EVP_F_CAMELLIA_INIT_KEY, EVP_R_CAMELLIA_KEY_SETUP_FAILED);
222 return 0;
223 }
224
225 mode = EVP_CIPHER_CTX_mode(ctx);
226 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
227 && !enc) {
228 dat->block = (block128_f) Camellia_decrypt;
229 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
230 (cbc128_f) Camellia_cbc_encrypt : NULL;
231 } else {
232 dat->block = (block128_f) Camellia_encrypt;
233 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
234 (cbc128_f) Camellia_cbc_encrypt : NULL;
235 }
236
237 return 1;
238}
239
240static int camellia_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
241 const unsigned char *in, size_t len)
242{
243 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
244
245 if (dat->stream.cbc)
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);
252 else
253 CRYPTO_cbc128_decrypt(in, out, len, &dat->ks,
254 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
255
256 return 1;
257}
258
259static int camellia_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
260 const unsigned char *in, size_t len)
261{
262 size_t bl = EVP_CIPHER_CTX_block_size(ctx);
263 size_t i;
264 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
265
266 if (len < bl)
267 return 1;
268
269 for (i = 0, len -= bl; i <= len; i += bl)
270 (*dat->block) (in + i, out + i, &dat->ks);
271
272 return 1;
273}
274
275static int camellia_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
276 const unsigned char *in, size_t len)
277{
278 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
279
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);
284 return 1;
285}
286
287static int camellia_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
288 const unsigned char *in, size_t len)
289{
290 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
291
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);
296 return 1;
297}
298
299static int camellia_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
300 const unsigned char *in, size_t len)
301{
302 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
303
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);
308 return 1;
309}
310
311static int camellia_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
312 const unsigned char *in, size_t len)
313{
314 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
315
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);
321 return 1;
322 }
323
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);
328 EVP_CIPHER_CTX_set_num(ctx, num);
329 len -= MAXBITCHUNK;
330 out += MAXBITCHUNK;
331 in += MAXBITCHUNK;
332 }
333 if (len) {
334 int num = EVP_CIPHER_CTX_num(ctx);
335 CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks,
336 EVP_CIPHER_CTX_iv_noconst(ctx), &num, EVP_CIPHER_CTX_encrypting(ctx), dat->block);
337 EVP_CIPHER_CTX_set_num(ctx, num);
338 }
339
340 return 1;
341}
342
343static int camellia_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
344 const unsigned char *in, size_t len)
345{
346 unsigned int num = EVP_CIPHER_CTX_num(ctx);
347 EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
348
349 if (dat->stream.ctr)
350 CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks,
351 EVP_CIPHER_CTX_iv_noconst(ctx),
352 EVP_CIPHER_CTX_buf_noconst(ctx), &num,
353 dat->stream.ctr);
354 else
355 CRYPTO_ctr128_encrypt(in, out, len, &dat->ks,
356 EVP_CIPHER_CTX_iv_noconst(ctx),
357 EVP_CIPHER_CTX_buf_noconst(ctx), &num,
358 dat->block);
359 EVP_CIPHER_CTX_set_num(ctx, num);
360 return 1;
361}
362
363BLOCK_CIPHER_generic_pack(NID_camellia, 128, 0)
364 BLOCK_CIPHER_generic_pack(NID_camellia, 192, 0)
365 BLOCK_CIPHER_generic_pack(NID_camellia, 256, 0)
366#endif
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