1 /* crypto/evp/e_des3.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
59 #define OPENSSL_FIPSAPI
63 #ifndef OPENSSL_NO_DES
64 #include <openssl/evp.h>
65 #include <openssl/objects.h>
67 #include <openssl/des.h>
68 #include <openssl/rand.h>
72 union { double align; DES_key_schedule ks[3]; } ks;
74 void (*cbc)(const void *,void *,size_t,const void *,void *);
81 #if defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
82 /* ---------^^^ this is not a typo, just a way to detect that
83 * assembler support was in general requested... */
84 #include "sparc_arch.h"
86 extern unsigned int OPENSSL_sparcv9cap_P[];
88 #define SPARC_DES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_DES)
90 void des_t4_key_expand(const void *key, DES_key_schedule *ks);
91 void des_t4_ede3_cbc_encrypt(const void *inp,void *out,size_t len,
92 DES_key_schedule *ks,unsigned char iv[8]);
93 void des_t4_ede3_cbc_decrypt(const void *inp,void *out,size_t len,
94 DES_key_schedule *ks,unsigned char iv[8]);
97 static int des_ede_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
98 const unsigned char *iv,int enc);
100 static int des_ede3_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
101 const unsigned char *iv,int enc);
103 static int des3_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr);
105 #define data(ctx) ((DES_EDE_KEY *)(ctx)->cipher_data)
107 /* Because of various casts and different args can't use IMPLEMENT_BLOCK_CIPHER */
109 static int des_ede_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
110 const unsigned char *in, size_t inl)
112 BLOCK_CIPHER_ecb_loop()
113 DES_ecb3_encrypt((const_DES_cblock *)(in + i),
114 (DES_cblock *)(out + i),
115 &data(ctx)->ks1, &data(ctx)->ks2,
121 static int des_ede_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
122 const unsigned char *in, size_t inl)
124 if (inl>=EVP_MAXCHUNK)
126 DES_ede3_ofb64_encrypt(in, out, (long)EVP_MAXCHUNK,
127 &data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3,
128 (DES_cblock *)ctx->iv, &ctx->num);
134 DES_ede3_ofb64_encrypt(in, out, (long)inl,
135 &data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3,
136 (DES_cblock *)ctx->iv, &ctx->num);
141 static int des_ede_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
142 const unsigned char *in, size_t inl)
144 DES_EDE_KEY *dat = data(ctx);
150 printf("des_ede_cbc_cipher(ctx=%lx, buflen=%d)\n", ctx, ctx->buf_len);
153 printf("%02X",ctx->iv[i]);
156 #endif /* KSSL_DEBUG */
159 (*dat->stream.cbc)(in,out,inl,&dat->ks,ctx->iv);
163 if (inl>=EVP_MAXCHUNK)
165 DES_ede3_cbc_encrypt(in, out, (long)EVP_MAXCHUNK,
166 &dat->ks1, &dat->ks2, &dat->ks3,
167 (DES_cblock *)ctx->iv, ctx->encrypt);
173 DES_ede3_cbc_encrypt(in, out, (long)inl,
174 &dat->ks1, &dat->ks2, &dat->ks3,
175 (DES_cblock *)ctx->iv, ctx->encrypt);
179 static int des_ede_cfb64_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
180 const unsigned char *in, size_t inl)
182 if (inl>=EVP_MAXCHUNK)
184 DES_ede3_cfb64_encrypt(in, out, (long)EVP_MAXCHUNK,
185 &data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3,
186 (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt);
192 DES_ede3_cfb64_encrypt(in, out, (long)inl,
193 &data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3,
194 (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt);
198 /* Although we have a CFB-r implementation for 3-DES, it doesn't pack the right
199 way, so wrap it here */
200 static int des_ede3_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
201 const unsigned char *in, size_t inl)
204 unsigned char c[1],d[1];
206 for(n=0 ; n < inl ; ++n)
208 c[0]=(in[n/8]&(1 << (7-n%8))) ? 0x80 : 0;
209 DES_ede3_cfb_encrypt(c,d,1,1,
210 &data(ctx)->ks1,&data(ctx)->ks2,&data(ctx)->ks3,
211 (DES_cblock *)ctx->iv,ctx->encrypt);
212 out[n/8]=(out[n/8]&~(0x80 >> (unsigned int)(n%8))) |
213 ((d[0]&0x80) >> (unsigned int)(n%8));
219 static int des_ede3_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
220 const unsigned char *in, size_t inl)
222 while (inl>=EVP_MAXCHUNK)
224 DES_ede3_cfb_encrypt(in,out,8,(long)EVP_MAXCHUNK,
225 &data(ctx)->ks1,&data(ctx)->ks2,&data(ctx)->ks3,
226 (DES_cblock *)ctx->iv,ctx->encrypt);
232 DES_ede3_cfb_encrypt(in,out,8,(long)inl,
233 &data(ctx)->ks1,&data(ctx)->ks2,&data(ctx)->ks3,
234 (DES_cblock *)ctx->iv,ctx->encrypt);
238 BLOCK_CIPHER_defs(des_ede, DES_EDE_KEY, NID_des_ede, 8, 16, 8, 64,
239 EVP_CIPH_RAND_KEY|EVP_CIPH_FLAG_DEFAULT_ASN1,
240 des_ede_init_key, NULL, NULL, NULL,
243 #define des_ede3_cfb64_cipher des_ede_cfb64_cipher
244 #define des_ede3_ofb_cipher des_ede_ofb_cipher
245 #define des_ede3_cbc_cipher des_ede_cbc_cipher
246 #define des_ede3_ecb_cipher des_ede_ecb_cipher
248 BLOCK_CIPHER_defs(des_ede3, DES_EDE_KEY, NID_des_ede3, 8, 24, 8, 64,
249 EVP_CIPH_RAND_KEY|EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_DEFAULT_ASN1,
250 des_ede3_init_key, NULL, NULL, NULL,
253 BLOCK_CIPHER_def_cfb(des_ede3,DES_EDE_KEY,NID_des_ede3,24,8,1,
254 EVP_CIPH_RAND_KEY|EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_DEFAULT_ASN1,
255 des_ede3_init_key, NULL, NULL, NULL,
258 BLOCK_CIPHER_def_cfb(des_ede3,DES_EDE_KEY,NID_des_ede3,24,8,8,
259 EVP_CIPH_RAND_KEY|EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_DEFAULT_ASN1,
260 des_ede3_init_key, NULL, NULL, NULL,
263 static int des_ede_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
264 const unsigned char *iv, int enc)
266 DES_cblock *deskey = (DES_cblock *)key;
267 DES_EDE_KEY *dat = data(ctx);
269 dat->stream.cbc = NULL;
270 #if defined(SPARC_DES_CAPABLE)
271 if (SPARC_DES_CAPABLE)
273 int mode = ctx->cipher->flags & EVP_CIPH_MODE;
275 if (mode == EVP_CIPH_CBC_MODE)
277 des_t4_key_expand(&deskey[0],&dat->ks1);
278 des_t4_key_expand(&deskey[1],&dat->ks2);
279 memcpy(&dat->ks3,&dat->ks1,sizeof(dat->ks1));
280 dat->stream.cbc = enc ? des_t4_ede3_cbc_encrypt :
281 des_t4_ede3_cbc_decrypt;
286 #ifdef EVP_CHECK_DES_KEY
287 if (DES_set_key_checked(&deskey[0],&dat->ks1)
288 !! DES_set_key_checked(&deskey[1],&dat->ks2))
291 DES_set_key_unchecked(&deskey[0],&dat->ks1);
292 DES_set_key_unchecked(&deskey[1],&dat->ks2);
294 memcpy(&dat->ks3,&dat->ks1,
299 static int des_ede3_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
300 const unsigned char *iv, int enc)
302 DES_cblock *deskey = (DES_cblock *)key;
303 DES_EDE_KEY *dat = data(ctx);
308 printf("des_ede3_init_key(ctx=%lx)\n", ctx);
310 for(i=0;i<24;i++) printf("%02X",key[i]); printf("\n");
312 for(i=0;i<8;i++) printf("%02X",iv[i]); printf("\n");
314 #endif /* KSSL_DEBUG */
316 dat->stream.cbc = NULL;
317 #if defined(SPARC_DES_CAPABLE)
318 if (SPARC_DES_CAPABLE)
320 int mode = ctx->cipher->flags & EVP_CIPH_MODE;
322 if (mode == EVP_CIPH_CBC_MODE)
324 des_t4_key_expand(&deskey[0],&dat->ks1);
325 des_t4_key_expand(&deskey[1],&dat->ks2);
326 des_t4_key_expand(&deskey[2],&dat->ks3);
327 dat->stream.cbc = enc ? des_t4_ede3_cbc_encrypt :
328 des_t4_ede3_cbc_decrypt;
333 #ifdef EVP_CHECK_DES_KEY
334 if (DES_set_key_checked(&deskey[0],&dat->ks1)
335 || DES_set_key_checked(&deskey[1],&dat->ks2)
336 || DES_set_key_checked(&deskey[2],&dat->ks3))
339 DES_set_key_unchecked(&deskey[0],&dat->ks1);
340 DES_set_key_unchecked(&deskey[1],&dat->ks2);
341 DES_set_key_unchecked(&deskey[2],&dat->ks3);
346 static int des3_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
349 DES_cblock *deskey = ptr;
353 case EVP_CTRL_RAND_KEY:
354 if (RAND_bytes(ptr, c->key_len) <= 0)
356 DES_set_odd_parity(deskey);
357 if (c->key_len >= 16)
358 DES_set_odd_parity(deskey + 1);
359 if (c->key_len >= 24)
360 DES_set_odd_parity(deskey + 2);
368 const EVP_CIPHER *EVP_des_ede(void)
373 const EVP_CIPHER *EVP_des_ede3(void)
375 return &des_ede3_ecb;
378 #ifndef OPENSSL_NO_SHA
380 #include <openssl/sha.h>
382 static const unsigned char wrap_iv[8] = {0x4a,0xdd,0xa2,0x2c,0x79,0xe8,0x21,0x05};
384 static int des_ede3_unwrap(EVP_CIPHER_CTX *ctx, unsigned char *out,
385 const unsigned char *in, size_t inl)
387 unsigned char icv[8], iv[8], sha1tmp[SHA_DIGEST_LENGTH];
393 memcpy(ctx->iv, wrap_iv, 8);
394 /* Decrypt first block which will end up as icv */
395 des_ede_cbc_cipher(ctx, icv, in, 8);
396 /* Decrypt central blocks */
397 /* If decrypting in place move whole output along a block
398 * so the next des_ede_cbc_cipher is in place.
402 memmove(out, out + 8, inl - 8);
405 des_ede_cbc_cipher(ctx, out, in + 8, inl - 16);
406 /* Decrypt final block which will be IV */
407 des_ede_cbc_cipher(ctx, iv, in + inl - 8, 8);
408 /* Reverse order of everything */
409 BUF_reverse(icv, NULL, 8);
410 BUF_reverse(out, NULL, inl - 16);
411 BUF_reverse(ctx->iv, iv, 8);
412 /* Decrypt again using new IV */
413 des_ede_cbc_cipher(ctx, out, out, inl - 16);
414 des_ede_cbc_cipher(ctx, icv, icv, 8);
415 /* Work out SHA1 hash of first portion */
416 SHA1(out, inl - 16, sha1tmp);
418 if (!CRYPTO_memcmp(sha1tmp, icv, 8))
420 OPENSSL_cleanse(icv, 8);
421 OPENSSL_cleanse(sha1tmp, SHA_DIGEST_LENGTH);
422 OPENSSL_cleanse(iv, 8);
423 OPENSSL_cleanse(ctx->iv, 8);
425 OPENSSL_cleanse(out, inl - 16);
430 static int des_ede3_wrap(EVP_CIPHER_CTX *ctx, unsigned char *out,
431 const unsigned char *in, size_t inl)
433 unsigned char sha1tmp[SHA_DIGEST_LENGTH];
436 /* Copy input to output buffer + 8 so we have space for IV */
437 memmove(out + 8, in, inl);
439 SHA1(in, inl, sha1tmp);
440 memcpy(out + inl + 8, sha1tmp, 8);
441 OPENSSL_cleanse(sha1tmp, SHA_DIGEST_LENGTH);
442 /* Generate random IV */
443 RAND_bytes(ctx->iv, 8);
444 memcpy(out, ctx->iv, 8);
445 /* Encrypt everything after IV in place */
446 des_ede_cbc_cipher(ctx, out + 8, out + 8, inl + 8);
447 BUF_reverse(out, NULL, inl + 16);
448 memcpy(ctx->iv, wrap_iv, 8);
449 des_ede_cbc_cipher(ctx, out, out, inl + 16);
453 static int des_ede3_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
454 const unsigned char *in, size_t inl)
456 /* Sanity check input length: we typically only wrap keys
457 * so EVP_MAXCHUNK is more than will ever be needed. Also
458 * input length must be a multiple of 8 bits.
460 if (inl >= EVP_MAXCHUNK || inl % 8)
463 return des_ede3_wrap(ctx, out, in, inl);
465 return des_ede3_unwrap(ctx, out, in, inl);
468 static const EVP_CIPHER des3_wrap = {
469 NID_id_smime_alg_CMS3DESwrap,
471 EVP_CIPH_WRAP_MODE|EVP_CIPH_CUSTOM_IV|EVP_CIPH_FLAG_CUSTOM_CIPHER,
472 des_ede3_init_key, des_ede3_wrap_cipher,
475 NULL,NULL,NULL,NULL };
478 const EVP_CIPHER *EVP_des_ede3_wrap(void)