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Diffstat (limited to 'src/lib/libcrypto/evp/e_des3.c')
-rw-r--r-- | src/lib/libcrypto/evp/e_des3.c | 271 |
1 files changed, 271 insertions, 0 deletions
diff --git a/src/lib/libcrypto/evp/e_des3.c b/src/lib/libcrypto/evp/e_des3.c new file mode 100644 index 0000000000..ac148efab2 --- /dev/null +++ b/src/lib/libcrypto/evp/e_des3.c | |||
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1 | /* crypto/evp/e_des3.c */ | ||
2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | ||
3 | * All rights reserved. | ||
4 | * | ||
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. | ||
8 | * | ||
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). | ||
15 | * | ||
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. | ||
22 | * | ||
23 | * Redistribution and use in source and binary forms, with or without | ||
24 | * modification, are permitted provided that the following conditions | ||
25 | * are met: | ||
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)" | ||
40 | * | ||
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 | ||
51 | * SUCH DAMAGE. | ||
52 | * | ||
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.] | ||
57 | */ | ||
58 | |||
59 | #include <stdio.h> | ||
60 | #include "cryptlib.h" | ||
61 | #ifndef OPENSSL_NO_DES | ||
62 | #include <openssl/evp.h> | ||
63 | #include <openssl/objects.h> | ||
64 | #include "evp_locl.h" | ||
65 | #include <openssl/des.h> | ||
66 | #include <openssl/rand.h> | ||
67 | |||
68 | static int des_ede_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, | ||
69 | const unsigned char *iv,int enc); | ||
70 | |||
71 | static int des_ede3_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, | ||
72 | const unsigned char *iv,int enc); | ||
73 | |||
74 | static int des3_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr); | ||
75 | |||
76 | typedef struct | ||
77 | { | ||
78 | DES_key_schedule ks1;/* key schedule */ | ||
79 | DES_key_schedule ks2;/* key schedule (for ede) */ | ||
80 | DES_key_schedule ks3;/* key schedule (for ede3) */ | ||
81 | } DES_EDE_KEY; | ||
82 | |||
83 | #define data(ctx) ((DES_EDE_KEY *)(ctx)->cipher_data) | ||
84 | |||
85 | /* Because of various casts and different args can't use IMPLEMENT_BLOCK_CIPHER */ | ||
86 | |||
87 | static int des_ede_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | ||
88 | const unsigned char *in, unsigned int inl) | ||
89 | { | ||
90 | BLOCK_CIPHER_ecb_loop() | ||
91 | DES_ecb3_encrypt((const_DES_cblock *)(in + i), | ||
92 | (DES_cblock *)(out + i), | ||
93 | &data(ctx)->ks1, &data(ctx)->ks2, | ||
94 | &data(ctx)->ks3, | ||
95 | ctx->encrypt); | ||
96 | return 1; | ||
97 | } | ||
98 | |||
99 | static int des_ede_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | ||
100 | const unsigned char *in, unsigned int inl) | ||
101 | { | ||
102 | DES_ede3_ofb64_encrypt(in, out, (long)inl, | ||
103 | &data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3, | ||
104 | (DES_cblock *)ctx->iv, &ctx->num); | ||
105 | return 1; | ||
106 | } | ||
107 | |||
108 | static int des_ede_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | ||
109 | const unsigned char *in, unsigned int inl) | ||
110 | { | ||
111 | #ifdef KSSL_DEBUG | ||
112 | { | ||
113 | int i; | ||
114 | char *cp; | ||
115 | printf("des_ede_cbc_cipher(ctx=%lx, buflen=%d)\n", ctx, ctx->buf_len); | ||
116 | printf("\t iv= "); | ||
117 | for(i=0;i<8;i++) | ||
118 | printf("%02X",ctx->iv[i]); | ||
119 | printf("\n"); | ||
120 | } | ||
121 | #endif /* KSSL_DEBUG */ | ||
122 | DES_ede3_cbc_encrypt(in, out, (long)inl, | ||
123 | &data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3, | ||
124 | (DES_cblock *)ctx->iv, ctx->encrypt); | ||
125 | return 1; | ||
126 | } | ||
127 | |||
128 | static int des_ede_cfb64_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | ||
129 | const unsigned char *in, unsigned int inl) | ||
130 | { | ||
131 | DES_ede3_cfb64_encrypt(in, out, (long)inl, | ||
132 | &data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3, | ||
133 | (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt); | ||
134 | return 1; | ||
135 | } | ||
136 | |||
137 | /* Although we have a CFB-r implementation for 3-DES, it doesn't pack the right | ||
138 | way, so wrap it here */ | ||
139 | static int des_ede3_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | ||
140 | const unsigned char *in, unsigned int inl) | ||
141 | { | ||
142 | unsigned int n; | ||
143 | unsigned char c[1],d[1]; | ||
144 | |||
145 | for(n=0 ; n < inl ; ++n) | ||
146 | { | ||
147 | c[0]=(in[n/8]&(1 << (7-n%8))) ? 0x80 : 0; | ||
148 | DES_ede3_cfb_encrypt(c,d,1,1, | ||
149 | &data(ctx)->ks1,&data(ctx)->ks2,&data(ctx)->ks3, | ||
150 | (DES_cblock *)ctx->iv,ctx->encrypt); | ||
151 | out[n/8]=(out[n/8]&~(0x80 >> (n%8)))|((d[0]&0x80) >> (n%8)); | ||
152 | } | ||
153 | |||
154 | return 1; | ||
155 | } | ||
156 | |||
157 | static int des_ede3_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | ||
158 | const unsigned char *in, unsigned int inl) | ||
159 | { | ||
160 | DES_ede3_cfb_encrypt(in,out,8,inl, | ||
161 | &data(ctx)->ks1,&data(ctx)->ks2,&data(ctx)->ks3, | ||
162 | (DES_cblock *)ctx->iv,ctx->encrypt); | ||
163 | return 1; | ||
164 | } | ||
165 | |||
166 | BLOCK_CIPHER_defs(des_ede, DES_EDE_KEY, NID_des_ede, 8, 16, 8, 64, | ||
167 | EVP_CIPH_RAND_KEY, des_ede_init_key, NULL, | ||
168 | EVP_CIPHER_set_asn1_iv, | ||
169 | EVP_CIPHER_get_asn1_iv, | ||
170 | des3_ctrl) | ||
171 | |||
172 | #define des_ede3_cfb64_cipher des_ede_cfb64_cipher | ||
173 | #define des_ede3_ofb_cipher des_ede_ofb_cipher | ||
174 | #define des_ede3_cbc_cipher des_ede_cbc_cipher | ||
175 | #define des_ede3_ecb_cipher des_ede_ecb_cipher | ||
176 | |||
177 | BLOCK_CIPHER_defs(des_ede3, DES_EDE_KEY, NID_des_ede3, 8, 24, 8, 64, | ||
178 | EVP_CIPH_RAND_KEY, des_ede3_init_key, NULL, | ||
179 | EVP_CIPHER_set_asn1_iv, | ||
180 | EVP_CIPHER_get_asn1_iv, | ||
181 | des3_ctrl) | ||
182 | |||
183 | BLOCK_CIPHER_def_cfb(des_ede3,DES_EDE_KEY,NID_des_ede3,24,8,1, | ||
184 | EVP_CIPH_RAND_KEY, des_ede3_init_key,NULL, | ||
185 | EVP_CIPHER_set_asn1_iv, | ||
186 | EVP_CIPHER_get_asn1_iv, | ||
187 | des3_ctrl) | ||
188 | |||
189 | BLOCK_CIPHER_def_cfb(des_ede3,DES_EDE_KEY,NID_des_ede3,24,8,8, | ||
190 | EVP_CIPH_RAND_KEY, des_ede3_init_key,NULL, | ||
191 | EVP_CIPHER_set_asn1_iv, | ||
192 | EVP_CIPHER_get_asn1_iv, | ||
193 | des3_ctrl) | ||
194 | |||
195 | static int des_ede_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, | ||
196 | const unsigned char *iv, int enc) | ||
197 | { | ||
198 | DES_cblock *deskey = (DES_cblock *)key; | ||
199 | #ifdef EVP_CHECK_DES_KEY | ||
200 | if (DES_set_key_checked(&deskey[0],&data(ctx)->ks1) | ||
201 | !! DES_set_key_checked(&deskey[1],&data(ctx)->ks2)) | ||
202 | return 0; | ||
203 | #else | ||
204 | DES_set_key_unchecked(&deskey[0],&data(ctx)->ks1); | ||
205 | DES_set_key_unchecked(&deskey[1],&data(ctx)->ks2); | ||
206 | #endif | ||
207 | memcpy(&data(ctx)->ks3,&data(ctx)->ks1, | ||
208 | sizeof(data(ctx)->ks1)); | ||
209 | return 1; | ||
210 | } | ||
211 | |||
212 | static int des_ede3_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, | ||
213 | const unsigned char *iv, int enc) | ||
214 | { | ||
215 | DES_cblock *deskey = (DES_cblock *)key; | ||
216 | #ifdef KSSL_DEBUG | ||
217 | { | ||
218 | int i; | ||
219 | printf("des_ede3_init_key(ctx=%lx)\n", ctx); | ||
220 | printf("\tKEY= "); | ||
221 | for(i=0;i<24;i++) printf("%02X",key[i]); printf("\n"); | ||
222 | printf("\t IV= "); | ||
223 | for(i=0;i<8;i++) printf("%02X",iv[i]); printf("\n"); | ||
224 | } | ||
225 | #endif /* KSSL_DEBUG */ | ||
226 | |||
227 | #ifdef EVP_CHECK_DES_KEY | ||
228 | if (DES_set_key_checked(&deskey[0],&data(ctx)->ks1) | ||
229 | || DES_set_key_checked(&deskey[1],&data(ctx)->ks2) | ||
230 | || DES_set_key_checked(&deskey[2],&data(ctx)->ks3)) | ||
231 | return 0; | ||
232 | #else | ||
233 | DES_set_key_unchecked(&deskey[0],&data(ctx)->ks1); | ||
234 | DES_set_key_unchecked(&deskey[1],&data(ctx)->ks2); | ||
235 | DES_set_key_unchecked(&deskey[2],&data(ctx)->ks3); | ||
236 | #endif | ||
237 | return 1; | ||
238 | } | ||
239 | |||
240 | static int des3_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) | ||
241 | { | ||
242 | |||
243 | DES_cblock *deskey = ptr; | ||
244 | |||
245 | switch(type) | ||
246 | { | ||
247 | case EVP_CTRL_RAND_KEY: | ||
248 | if (RAND_bytes(ptr, c->key_len) <= 0) | ||
249 | return 0; | ||
250 | DES_set_odd_parity(deskey); | ||
251 | if (c->key_len >= 16) | ||
252 | DES_set_odd_parity(deskey + 1); | ||
253 | if (c->key_len >= 24) | ||
254 | DES_set_odd_parity(deskey + 2); | ||
255 | return 1; | ||
256 | |||
257 | default: | ||
258 | return -1; | ||
259 | } | ||
260 | } | ||
261 | |||
262 | const EVP_CIPHER *EVP_des_ede(void) | ||
263 | { | ||
264 | return &des_ede_ecb; | ||
265 | } | ||
266 | |||
267 | const EVP_CIPHER *EVP_des_ede3(void) | ||
268 | { | ||
269 | return &des_ede3_ecb; | ||
270 | } | ||
271 | #endif | ||