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Commit | Line | Data |
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62867571 | 1 | /* |
c4d3c19b | 2 | * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved. |
d02b48c6 | 3 | * |
4a8b0c55 | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
62867571 RS |
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 | |
d02b48c6 RE |
8 | */ |
9 | ||
10 | #include <stdio.h> | |
b39fc560 | 11 | #include "internal/cryptlib.h" |
9e9e8cb6 | 12 | #ifndef OPENSSL_NO_DES |
0f113f3e MC |
13 | # include <openssl/evp.h> |
14 | # include <openssl/objects.h> | |
6435f0f6 | 15 | # include "internal/evp_int.h" |
0f113f3e MC |
16 | # include <openssl/des.h> |
17 | # include <openssl/rand.h> | |
7141ba31 | 18 | # include "evp_locl.h" |
0f113f3e MC |
19 | |
20 | typedef struct { | |
21 | union { | |
22 | double align; | |
23 | DES_key_schedule ks[3]; | |
24 | } ks; | |
25 | union { | |
7687f525 AP |
26 | void (*cbc) (const void *, void *, size_t, |
27 | const DES_key_schedule *, unsigned char *); | |
0f113f3e MC |
28 | } stream; |
29 | } DES_EDE_KEY; | |
30 | # define ks1 ks.ks[0] | |
31 | # define ks2 ks.ks[1] | |
32 | # define ks3 ks.ks[2] | |
33 | ||
34 | # if defined(AES_ASM) && (defined(__sparc) || defined(__sparc__)) | |
c5d975a7 AP |
35 | /* ---------^^^ this is not a typo, just a way to detect that |
36 | * assembler support was in general requested... */ | |
0f113f3e | 37 | # include "sparc_arch.h" |
c5d975a7 AP |
38 | |
39 | extern unsigned int OPENSSL_sparcv9cap_P[]; | |
40 | ||
0f113f3e | 41 | # define SPARC_DES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_DES) |
c5d975a7 | 42 | |
0f113f3e MC |
43 | void des_t4_key_expand(const void *key, DES_key_schedule *ks); |
44 | void des_t4_ede3_cbc_encrypt(const void *inp, void *out, size_t len, | |
7687f525 | 45 | const DES_key_schedule ks[3], unsigned char iv[8]); |
0f113f3e | 46 | void des_t4_ede3_cbc_decrypt(const void *inp, void *out, size_t len, |
7687f525 | 47 | const DES_key_schedule ks[3], unsigned char iv[8]); |
0f113f3e | 48 | # endif |
c5d975a7 | 49 | |
1921eaad | 50 | static int des_ede_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, |
0f113f3e | 51 | const unsigned char *iv, int enc); |
57ae2e24 | 52 | |
1921eaad | 53 | static int des_ede3_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, |
0f113f3e | 54 | const unsigned char *iv, int enc); |
d02b48c6 | 55 | |
216659eb DSH |
56 | static int des3_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr); |
57 | ||
6435f0f6 | 58 | # define data(ctx) EVP_C_DATA(DES_EDE_KEY,ctx) |
dbad1690 | 59 | |
0f113f3e MC |
60 | /* |
61 | * Because of various casts and different args can't use | |
62 | * IMPLEMENT_BLOCK_CIPHER | |
63 | */ | |
d02b48c6 | 64 | |
1921eaad | 65 | static int des_ede_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, |
0f113f3e | 66 | const unsigned char *in, size_t inl) |
57ae2e24 | 67 | { |
0f113f3e MC |
68 | BLOCK_CIPHER_ecb_loop() |
69 | DES_ecb3_encrypt((const_DES_cblock *)(in + i), | |
70 | (DES_cblock *)(out + i), | |
71 | &data(ctx)->ks1, &data(ctx)->ks2, | |
6435f0f6 | 72 | &data(ctx)->ks3, EVP_CIPHER_CTX_encrypting(ctx)); |
0f113f3e | 73 | return 1; |
57ae2e24 DSH |
74 | } |
75 | ||
1921eaad | 76 | static int des_ede_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, |
0f113f3e | 77 | const unsigned char *in, size_t inl) |
57ae2e24 | 78 | { |
0f113f3e | 79 | while (inl >= EVP_MAXCHUNK) { |
6435f0f6 | 80 | int num = EVP_CIPHER_CTX_num(ctx); |
0f113f3e MC |
81 | DES_ede3_ofb64_encrypt(in, out, (long)EVP_MAXCHUNK, |
82 | &data(ctx)->ks1, &data(ctx)->ks2, | |
6435f0f6 RL |
83 | &data(ctx)->ks3, |
84 | (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx), | |
85 | &num); | |
86 | EVP_CIPHER_CTX_set_num(ctx, num); | |
0f113f3e MC |
87 | inl -= EVP_MAXCHUNK; |
88 | in += EVP_MAXCHUNK; | |
89 | out += EVP_MAXCHUNK; | |
90 | } | |
6435f0f6 RL |
91 | if (inl) { |
92 | int num = EVP_CIPHER_CTX_num(ctx); | |
0f113f3e MC |
93 | DES_ede3_ofb64_encrypt(in, out, (long)inl, |
94 | &data(ctx)->ks1, &data(ctx)->ks2, | |
6435f0f6 RL |
95 | &data(ctx)->ks3, |
96 | (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx), | |
97 | &num); | |
98 | EVP_CIPHER_CTX_set_num(ctx, num); | |
99 | } | |
0f113f3e | 100 | return 1; |
57ae2e24 DSH |
101 | } |
102 | ||
1921eaad | 103 | static int des_ede_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, |
0f113f3e | 104 | const unsigned char *in, size_t inl) |
57ae2e24 | 105 | { |
0f113f3e | 106 | DES_EDE_KEY *dat = data(ctx); |
c5d975a7 | 107 | |
7687f525 AP |
108 | if (dat->stream.cbc != NULL) { |
109 | (*dat->stream.cbc) (in, out, inl, dat->ks.ks, | |
110 | EVP_CIPHER_CTX_iv_noconst(ctx)); | |
0f113f3e MC |
111 | return 1; |
112 | } | |
113 | ||
114 | while (inl >= EVP_MAXCHUNK) { | |
115 | DES_ede3_cbc_encrypt(in, out, (long)EVP_MAXCHUNK, | |
116 | &dat->ks1, &dat->ks2, &dat->ks3, | |
7687f525 AP |
117 | (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx), |
118 | EVP_CIPHER_CTX_encrypting(ctx)); | |
0f113f3e MC |
119 | inl -= EVP_MAXCHUNK; |
120 | in += EVP_MAXCHUNK; | |
121 | out += EVP_MAXCHUNK; | |
122 | } | |
123 | if (inl) | |
124 | DES_ede3_cbc_encrypt(in, out, (long)inl, | |
125 | &dat->ks1, &dat->ks2, &dat->ks3, | |
7687f525 AP |
126 | (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx), |
127 | EVP_CIPHER_CTX_encrypting(ctx)); | |
0f113f3e | 128 | return 1; |
57ae2e24 DSH |
129 | } |
130 | ||
8c6336b0 | 131 | static int des_ede_cfb64_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, |
0f113f3e | 132 | const unsigned char *in, size_t inl) |
57ae2e24 | 133 | { |
0f113f3e | 134 | while (inl >= EVP_MAXCHUNK) { |
6435f0f6 | 135 | int num = EVP_CIPHER_CTX_num(ctx); |
0f113f3e MC |
136 | DES_ede3_cfb64_encrypt(in, out, (long)EVP_MAXCHUNK, |
137 | &data(ctx)->ks1, &data(ctx)->ks2, | |
6435f0f6 RL |
138 | &data(ctx)->ks3, |
139 | (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx), | |
140 | &num, EVP_CIPHER_CTX_encrypting(ctx)); | |
141 | EVP_CIPHER_CTX_set_num(ctx, num); | |
0f113f3e MC |
142 | inl -= EVP_MAXCHUNK; |
143 | in += EVP_MAXCHUNK; | |
144 | out += EVP_MAXCHUNK; | |
145 | } | |
6435f0f6 RL |
146 | if (inl) { |
147 | int num = EVP_CIPHER_CTX_num(ctx); | |
0f113f3e MC |
148 | DES_ede3_cfb64_encrypt(in, out, (long)inl, |
149 | &data(ctx)->ks1, &data(ctx)->ks2, | |
6435f0f6 RL |
150 | &data(ctx)->ks3, |
151 | (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx), | |
152 | &num, EVP_CIPHER_CTX_encrypting(ctx)); | |
153 | EVP_CIPHER_CTX_set_num(ctx, num); | |
154 | } | |
0f113f3e | 155 | return 1; |
57ae2e24 DSH |
156 | } |
157 | ||
0f113f3e MC |
158 | /* |
159 | * Although we have a CFB-r implementation for 3-DES, it doesn't pack the | |
160 | * right way, so wrap it here | |
161 | */ | |
8c6336b0 | 162 | static int des_ede3_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, |
0f113f3e MC |
163 | const unsigned char *in, size_t inl) |
164 | { | |
b444ac3e | 165 | size_t n; |
0f113f3e MC |
166 | unsigned char c[1], d[1]; |
167 | ||
fe2d1491 RS |
168 | if (!EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS)) |
169 | inl *= 8; | |
0f113f3e MC |
170 | for (n = 0; n < inl; ++n) { |
171 | c[0] = (in[n / 8] & (1 << (7 - n % 8))) ? 0x80 : 0; | |
172 | DES_ede3_cfb_encrypt(c, d, 1, 1, | |
173 | &data(ctx)->ks1, &data(ctx)->ks2, | |
7687f525 AP |
174 | &data(ctx)->ks3, |
175 | (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx), | |
6435f0f6 | 176 | EVP_CIPHER_CTX_encrypting(ctx)); |
0f113f3e MC |
177 | out[n / 8] = (out[n / 8] & ~(0x80 >> (unsigned int)(n % 8))) |
178 | | ((d[0] & 0x80) >> (unsigned int)(n % 8)); | |
179 | } | |
8c6336b0 AP |
180 | |
181 | return 1; | |
0f113f3e | 182 | } |
8c6336b0 AP |
183 | |
184 | static int des_ede3_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | |
0f113f3e MC |
185 | const unsigned char *in, size_t inl) |
186 | { | |
187 | while (inl >= EVP_MAXCHUNK) { | |
188 | DES_ede3_cfb_encrypt(in, out, 8, (long)EVP_MAXCHUNK, | |
189 | &data(ctx)->ks1, &data(ctx)->ks2, | |
7687f525 AP |
190 | &data(ctx)->ks3, |
191 | (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx), | |
6435f0f6 | 192 | EVP_CIPHER_CTX_encrypting(ctx)); |
0f113f3e MC |
193 | inl -= EVP_MAXCHUNK; |
194 | in += EVP_MAXCHUNK; | |
195 | out += EVP_MAXCHUNK; | |
196 | } | |
b444ac3e | 197 | if (inl) |
0f113f3e MC |
198 | DES_ede3_cfb_encrypt(in, out, 8, (long)inl, |
199 | &data(ctx)->ks1, &data(ctx)->ks2, | |
7687f525 AP |
200 | &data(ctx)->ks3, |
201 | (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx), | |
6435f0f6 | 202 | EVP_CIPHER_CTX_encrypting(ctx)); |
8c6336b0 | 203 | return 1; |
0f113f3e | 204 | } |
8c6336b0 | 205 | |
a6cd8707 | 206 | BLOCK_CIPHER_defs(des_ede, DES_EDE_KEY, NID_des_ede, 8, 16, 8, 64, |
0f113f3e MC |
207 | EVP_CIPH_RAND_KEY | EVP_CIPH_FLAG_DEFAULT_ASN1, |
208 | des_ede_init_key, NULL, NULL, NULL, des3_ctrl) | |
209 | # define des_ede3_cfb64_cipher des_ede_cfb64_cipher | |
210 | # define des_ede3_ofb_cipher des_ede_ofb_cipher | |
211 | # define des_ede3_cbc_cipher des_ede_cbc_cipher | |
212 | # define des_ede3_ecb_cipher des_ede_ecb_cipher | |
213 | BLOCK_CIPHER_defs(des_ede3, DES_EDE_KEY, NID_des_ede3, 8, 24, 8, 64, | |
214 | EVP_CIPH_RAND_KEY | EVP_CIPH_FLAG_DEFAULT_ASN1, | |
215 | des_ede3_init_key, NULL, NULL, NULL, des3_ctrl) | |
216 | ||
217 | BLOCK_CIPHER_def_cfb(des_ede3, DES_EDE_KEY, NID_des_ede3, 24, 8, 1, | |
218 | EVP_CIPH_RAND_KEY | EVP_CIPH_FLAG_DEFAULT_ASN1, | |
219 | des_ede3_init_key, NULL, NULL, NULL, des3_ctrl) | |
220 | ||
221 | BLOCK_CIPHER_def_cfb(des_ede3, DES_EDE_KEY, NID_des_ede3, 24, 8, 8, | |
222 | EVP_CIPH_RAND_KEY | EVP_CIPH_FLAG_DEFAULT_ASN1, | |
223 | des_ede3_init_key, NULL, NULL, NULL, des3_ctrl) | |
8c6336b0 | 224 | |
1921eaad | 225 | static int des_ede_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, |
0f113f3e MC |
226 | const unsigned char *iv, int enc) |
227 | { | |
228 | DES_cblock *deskey = (DES_cblock *)key; | |
229 | DES_EDE_KEY *dat = data(ctx); | |
230 | ||
231 | dat->stream.cbc = NULL; | |
232 | # if defined(SPARC_DES_CAPABLE) | |
233 | if (SPARC_DES_CAPABLE) { | |
ecdd0ff7 | 234 | int mode = EVP_CIPHER_CTX_mode(ctx); |
0f113f3e MC |
235 | |
236 | if (mode == EVP_CIPH_CBC_MODE) { | |
237 | des_t4_key_expand(&deskey[0], &dat->ks1); | |
238 | des_t4_key_expand(&deskey[1], &dat->ks2); | |
239 | memcpy(&dat->ks3, &dat->ks1, sizeof(dat->ks1)); | |
240 | dat->stream.cbc = enc ? des_t4_ede3_cbc_encrypt : | |
241 | des_t4_ede3_cbc_decrypt; | |
242 | return 1; | |
243 | } | |
244 | } | |
245 | # endif | |
0f113f3e MC |
246 | DES_set_key_unchecked(&deskey[0], &dat->ks1); |
247 | DES_set_key_unchecked(&deskey[1], &dat->ks2); | |
0f113f3e MC |
248 | memcpy(&dat->ks3, &dat->ks1, sizeof(dat->ks1)); |
249 | return 1; | |
250 | } | |
d02b48c6 | 251 | |
1921eaad | 252 | static int des_ede3_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, |
0f113f3e MC |
253 | const unsigned char *iv, int enc) |
254 | { | |
255 | DES_cblock *deskey = (DES_cblock *)key; | |
256 | DES_EDE_KEY *dat = data(ctx); | |
c5d975a7 | 257 | |
0f113f3e MC |
258 | dat->stream.cbc = NULL; |
259 | # if defined(SPARC_DES_CAPABLE) | |
260 | if (SPARC_DES_CAPABLE) { | |
ecdd0ff7 | 261 | int mode = EVP_CIPHER_CTX_mode(ctx); |
0f113f3e MC |
262 | |
263 | if (mode == EVP_CIPH_CBC_MODE) { | |
264 | des_t4_key_expand(&deskey[0], &dat->ks1); | |
265 | des_t4_key_expand(&deskey[1], &dat->ks2); | |
266 | des_t4_key_expand(&deskey[2], &dat->ks3); | |
267 | dat->stream.cbc = enc ? des_t4_ede3_cbc_encrypt : | |
268 | des_t4_ede3_cbc_decrypt; | |
269 | return 1; | |
270 | } | |
271 | } | |
272 | # endif | |
0f113f3e MC |
273 | DES_set_key_unchecked(&deskey[0], &dat->ks1); |
274 | DES_set_key_unchecked(&deskey[1], &dat->ks2); | |
275 | DES_set_key_unchecked(&deskey[2], &dat->ks3); | |
0f113f3e MC |
276 | return 1; |
277 | } | |
57ae2e24 | 278 | |
6435f0f6 | 279 | static int des3_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr) |
0f113f3e MC |
280 | { |
281 | ||
282 | DES_cblock *deskey = ptr; | |
283 | ||
284 | switch (type) { | |
285 | case EVP_CTRL_RAND_KEY: | |
4cffafe9 | 286 | if (RAND_priv_bytes(ptr, EVP_CIPHER_CTX_key_length(ctx)) <= 0) |
0f113f3e MC |
287 | return 0; |
288 | DES_set_odd_parity(deskey); | |
6435f0f6 | 289 | if (EVP_CIPHER_CTX_key_length(ctx) >= 16) |
0f113f3e | 290 | DES_set_odd_parity(deskey + 1); |
6435f0f6 | 291 | if (EVP_CIPHER_CTX_key_length(ctx) >= 24) |
0f113f3e MC |
292 | DES_set_odd_parity(deskey + 2); |
293 | return 1; | |
294 | ||
295 | default: | |
296 | return -1; | |
297 | } | |
298 | } | |
216659eb | 299 | |
13588350 | 300 | const EVP_CIPHER *EVP_des_ede(void) |
57ae2e24 | 301 | { |
0f113f3e | 302 | return &des_ede_ecb; |
57ae2e24 DSH |
303 | } |
304 | ||
13588350 | 305 | const EVP_CIPHER *EVP_des_ede3(void) |
57ae2e24 | 306 | { |
0f113f3e | 307 | return &des_ede3_ecb; |
57ae2e24 | 308 | } |
97cf1f6c | 309 | |
97cf1f6c | 310 | |
474e469b | 311 | # include <openssl/sha.h> |
97cf1f6c | 312 | |
0f113f3e MC |
313 | static const unsigned char wrap_iv[8] = |
314 | { 0x4a, 0xdd, 0xa2, 0x2c, 0x79, 0xe8, 0x21, 0x05 }; | |
97cf1f6c DSH |
315 | |
316 | static int des_ede3_unwrap(EVP_CIPHER_CTX *ctx, unsigned char *out, | |
0f113f3e MC |
317 | const unsigned char *in, size_t inl) |
318 | { | |
319 | unsigned char icv[8], iv[8], sha1tmp[SHA_DIGEST_LENGTH]; | |
320 | int rv = -1; | |
321 | if (inl < 24) | |
322 | return -1; | |
7687f525 | 323 | if (out == NULL) |
0f113f3e | 324 | return inl - 16; |
6435f0f6 | 325 | memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), wrap_iv, 8); |
0f113f3e MC |
326 | /* Decrypt first block which will end up as icv */ |
327 | des_ede_cbc_cipher(ctx, icv, in, 8); | |
328 | /* Decrypt central blocks */ | |
329 | /* | |
330 | * If decrypting in place move whole output along a block so the next | |
331 | * des_ede_cbc_cipher is in place. | |
332 | */ | |
333 | if (out == in) { | |
334 | memmove(out, out + 8, inl - 8); | |
335 | in -= 8; | |
336 | } | |
337 | des_ede_cbc_cipher(ctx, out, in + 8, inl - 16); | |
338 | /* Decrypt final block which will be IV */ | |
339 | des_ede_cbc_cipher(ctx, iv, in + inl - 8, 8); | |
340 | /* Reverse order of everything */ | |
341 | BUF_reverse(icv, NULL, 8); | |
342 | BUF_reverse(out, NULL, inl - 16); | |
6435f0f6 | 343 | BUF_reverse(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 8); |
0f113f3e MC |
344 | /* Decrypt again using new IV */ |
345 | des_ede_cbc_cipher(ctx, out, out, inl - 16); | |
346 | des_ede_cbc_cipher(ctx, icv, icv, 8); | |
347 | /* Work out SHA1 hash of first portion */ | |
348 | SHA1(out, inl - 16, sha1tmp); | |
349 | ||
350 | if (!CRYPTO_memcmp(sha1tmp, icv, 8)) | |
351 | rv = inl - 16; | |
352 | OPENSSL_cleanse(icv, 8); | |
353 | OPENSSL_cleanse(sha1tmp, SHA_DIGEST_LENGTH); | |
354 | OPENSSL_cleanse(iv, 8); | |
6435f0f6 | 355 | OPENSSL_cleanse(EVP_CIPHER_CTX_iv_noconst(ctx), 8); |
0f113f3e MC |
356 | if (rv == -1) |
357 | OPENSSL_cleanse(out, inl - 16); | |
358 | ||
359 | return rv; | |
360 | } | |
97cf1f6c DSH |
361 | |
362 | static int des_ede3_wrap(EVP_CIPHER_CTX *ctx, unsigned char *out, | |
0f113f3e MC |
363 | const unsigned char *in, size_t inl) |
364 | { | |
365 | unsigned char sha1tmp[SHA_DIGEST_LENGTH]; | |
7687f525 | 366 | if (out == NULL) |
0f113f3e MC |
367 | return inl + 16; |
368 | /* Copy input to output buffer + 8 so we have space for IV */ | |
369 | memmove(out + 8, in, inl); | |
370 | /* Work out ICV */ | |
371 | SHA1(in, inl, sha1tmp); | |
372 | memcpy(out + inl + 8, sha1tmp, 8); | |
373 | OPENSSL_cleanse(sha1tmp, SHA_DIGEST_LENGTH); | |
374 | /* Generate random IV */ | |
16cfc2c9 | 375 | if (RAND_bytes(EVP_CIPHER_CTX_iv_noconst(ctx), 8) <= 0) |
266483d2 | 376 | return -1; |
6435f0f6 | 377 | memcpy(out, EVP_CIPHER_CTX_iv_noconst(ctx), 8); |
0f113f3e MC |
378 | /* Encrypt everything after IV in place */ |
379 | des_ede_cbc_cipher(ctx, out + 8, out + 8, inl + 8); | |
380 | BUF_reverse(out, NULL, inl + 16); | |
6435f0f6 | 381 | memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), wrap_iv, 8); |
0f113f3e MC |
382 | des_ede_cbc_cipher(ctx, out, out, inl + 16); |
383 | return inl + 16; | |
384 | } | |
97cf1f6c DSH |
385 | |
386 | static int des_ede3_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | |
0f113f3e MC |
387 | const unsigned char *in, size_t inl) |
388 | { | |
389 | /* | |
390 | * Sanity check input length: we typically only wrap keys so EVP_MAXCHUNK | |
391 | * is more than will ever be needed. Also input length must be a multiple | |
392 | * of 8 bits. | |
393 | */ | |
394 | if (inl >= EVP_MAXCHUNK || inl % 8) | |
395 | return -1; | |
7141ba31 MC |
396 | |
397 | if (is_partially_overlapping(out, in, inl)) { | |
398 | EVPerr(EVP_F_DES_EDE3_WRAP_CIPHER, EVP_R_PARTIALLY_OVERLAPPING); | |
399 | return 0; | |
400 | } | |
401 | ||
6435f0f6 | 402 | if (EVP_CIPHER_CTX_encrypting(ctx)) |
0f113f3e MC |
403 | return des_ede3_wrap(ctx, out, in, inl); |
404 | else | |
405 | return des_ede3_unwrap(ctx, out, in, inl); | |
406 | } | |
97cf1f6c DSH |
407 | |
408 | static const EVP_CIPHER des3_wrap = { | |
0f113f3e MC |
409 | NID_id_smime_alg_CMS3DESwrap, |
410 | 8, 24, 0, | |
411 | EVP_CIPH_WRAP_MODE | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER | |
412 | | EVP_CIPH_FLAG_DEFAULT_ASN1, | |
413 | des_ede3_init_key, des_ede3_wrap_cipher, | |
414 | NULL, | |
415 | sizeof(DES_EDE_KEY), | |
416 | NULL, NULL, NULL, NULL | |
417 | }; | |
97cf1f6c DSH |
418 | |
419 | const EVP_CIPHER *EVP_des_ede3_wrap(void) | |
0f113f3e MC |
420 | { |
421 | return &des3_wrap; | |
422 | } | |
97cf1f6c | 423 | |
d02f751c | 424 | #endif |