summaryrefslogtreecommitdiff
path: root/src/lib/libcrypto/evp/e_des.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/lib/libcrypto/evp/e_des.c')
-rw-r--r--src/lib/libcrypto/evp/e_des.c221
1 files changed, 113 insertions, 108 deletions
diff --git a/src/lib/libcrypto/evp/e_des.c b/src/lib/libcrypto/evp/e_des.c
index ca009f2c52..ac46ba6a96 100644
--- a/src/lib/libcrypto/evp/e_des.c
+++ b/src/lib/libcrypto/evp/e_des.c
@@ -5,21 +5,21 @@
5 * This package is an SSL implementation written 5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com). 6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL. 7 * The implementation was written so as to conform with Netscapes SSL.
8 * 8 *
9 * This library is free for commercial and non-commercial use as long as 9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions 10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA, 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 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 13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 * 15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in 16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed. 17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution 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. 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 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. 21 * in documentation (online or textual) provided with the package.
22 * 22 *
23 * Redistribution and use in source and binary forms, with or without 23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions 24 * modification, are permitted provided that the following conditions
25 * are met: 25 * are met:
@@ -34,10 +34,10 @@
34 * Eric Young (eay@cryptsoft.com)" 34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library 35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-). 36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from 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: 38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 * 40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
@@ -49,7 +49,7 @@
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 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 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE. 51 * SUCH DAMAGE.
52 * 52 *
53 * The licence and distribution terms for any publically available version or 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 54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence 55 * copied and put under another distribution licence
@@ -66,150 +66,155 @@
66#include <openssl/rand.h> 66#include <openssl/rand.h>
67 67
68static int des_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, 68static int des_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
69 const unsigned char *iv, int enc); 69 const unsigned char *iv, int enc);
70static int des_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr); 70static int des_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr);
71 71
72/* Because of various casts and different names can't use IMPLEMENT_BLOCK_CIPHER */ 72/* Because of various casts and different names can't use IMPLEMENT_BLOCK_CIPHER */
73 73
74static int des_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, 74static int
75 const unsigned char *in, size_t inl) 75des_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
76 const unsigned char *in, size_t inl)
76{ 77{
77 BLOCK_CIPHER_ecb_loop() 78 BLOCK_CIPHER_ecb_loop()
78 DES_ecb_encrypt((DES_cblock *)(in + i), (DES_cblock *)(out + i), ctx->cipher_data, ctx->encrypt); 79 DES_ecb_encrypt((DES_cblock *)(in + i), (DES_cblock *)(out + i),
80 ctx->cipher_data, ctx->encrypt);
79 return 1; 81 return 1;
80} 82}
81 83
82static int des_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, 84static int
83 const unsigned char *in, size_t inl) 85des_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
86 const unsigned char *in, size_t inl)
84{ 87{
85 while(inl>=EVP_MAXCHUNK) 88 while (inl >= EVP_MAXCHUNK) {
86 {
87 DES_ofb64_encrypt(in, out, (long)EVP_MAXCHUNK, ctx->cipher_data, 89 DES_ofb64_encrypt(in, out, (long)EVP_MAXCHUNK, ctx->cipher_data,
88 (DES_cblock *)ctx->iv, &ctx->num); 90 (DES_cblock *)ctx->iv, &ctx->num);
89 inl-=EVP_MAXCHUNK; 91 inl -= EVP_MAXCHUNK;
90 in +=EVP_MAXCHUNK; 92 in += EVP_MAXCHUNK;
91 out+=EVP_MAXCHUNK; 93 out += EVP_MAXCHUNK;
92 } 94 }
93 if (inl) 95 if (inl)
94 DES_ofb64_encrypt(in, out, (long)inl, ctx->cipher_data, 96 DES_ofb64_encrypt(in, out, (long)inl, ctx->cipher_data,
95 (DES_cblock *)ctx->iv, &ctx->num); 97 (DES_cblock *)ctx->iv, &ctx->num);
96 return 1; 98 return 1;
97} 99}
98 100
99static int des_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, 101static int
100 const unsigned char *in, size_t inl) 102des_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
103 const unsigned char *in, size_t inl)
101{ 104{
102 while(inl>=EVP_MAXCHUNK) 105 while (inl >= EVP_MAXCHUNK) {
103 {
104 DES_ncbc_encrypt(in, out, (long)EVP_MAXCHUNK, ctx->cipher_data, 106 DES_ncbc_encrypt(in, out, (long)EVP_MAXCHUNK, ctx->cipher_data,
105 (DES_cblock *)ctx->iv, ctx->encrypt); 107 (DES_cblock *)ctx->iv, ctx->encrypt);
106 inl-=EVP_MAXCHUNK; 108 inl -= EVP_MAXCHUNK;
107 in +=EVP_MAXCHUNK; 109 in += EVP_MAXCHUNK;
108 out+=EVP_MAXCHUNK; 110 out += EVP_MAXCHUNK;
109 } 111 }
110 if (inl) 112 if (inl)
111 DES_ncbc_encrypt(in, out, (long)inl, ctx->cipher_data, 113 DES_ncbc_encrypt(in, out, (long)inl, ctx->cipher_data,
112 (DES_cblock *)ctx->iv, ctx->encrypt); 114 (DES_cblock *)ctx->iv, ctx->encrypt);
113 return 1; 115 return 1;
114} 116}
115 117
116static int des_cfb64_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, 118static int
117 const unsigned char *in, size_t inl) 119des_cfb64_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
120 const unsigned char *in, size_t inl)
118{ 121{
119 while(inl>=EVP_MAXCHUNK) 122 while (inl >= EVP_MAXCHUNK) {
120 { 123 DES_cfb64_encrypt(in, out, (long)EVP_MAXCHUNK, ctx->cipher_data,
121 DES_cfb64_encrypt(in,out, (long)EVP_MAXCHUNK, ctx->cipher_data, 124 (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt);
122 (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt); 125 inl -= EVP_MAXCHUNK;
123 inl-=EVP_MAXCHUNK; 126 in += EVP_MAXCHUNK;
124 in +=EVP_MAXCHUNK; 127 out += EVP_MAXCHUNK;
125 out+=EVP_MAXCHUNK; 128 }
126 }
127 if (inl) 129 if (inl)
128 DES_cfb64_encrypt(in, out, (long)inl, ctx->cipher_data, 130 DES_cfb64_encrypt(in, out, (long)inl, ctx->cipher_data,
129 (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt); 131 (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt);
130 return 1; 132 return 1;
131} 133}
132 134
133/* Although we have a CFB-r implementation for DES, it doesn't pack the right 135/* Although we have a CFB-r implementation for DES, it doesn't pack the right
134 way, so wrap it here */ 136 way, so wrap it here */
135static int des_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, 137static int
136 const unsigned char *in, size_t inl) 138des_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
137 { 139 const unsigned char *in, size_t inl)
138 size_t n,chunk=EVP_MAXCHUNK/8; 140{
139 unsigned char c[1],d[1]; 141 size_t n, chunk = EVP_MAXCHUNK/8;
140 142 unsigned char c[1], d[1];
141 if (inl<chunk) chunk=inl; 143
142 144 if (inl < chunk)
143 while (inl && inl>=chunk) 145 chunk = inl;
144 { 146
145 for(n=0 ; n < chunk*8; ++n) 147 while (inl && inl >= chunk) {
146 { 148 for (n = 0; n < chunk*8; ++n) {
147 c[0]=(in[n/8]&(1 << (7-n%8))) ? 0x80 : 0; 149 c[0] = (in[n / 8] & (1 << (7 - n % 8))) ? 0x80 : 0;
148 DES_cfb_encrypt(c,d,1,1,ctx->cipher_data,(DES_cblock *)ctx->iv, 150 DES_cfb_encrypt(c, d, 1, 1, ctx->cipher_data,
149 ctx->encrypt); 151 (DES_cblock *)ctx->iv, ctx->encrypt);
150 out[n/8]=(out[n/8]&~(0x80 >> (unsigned int)(n%8))) | 152 out[n / 8] = (out[n / 8] &
151 ((d[0]&0x80) >> (unsigned int)(n%8)); 153 ~(0x80 >> (unsigned int)(n % 8))) |
152 } 154 ((d[0] & 0x80) >> (unsigned int)(n % 8));
153 inl-=chunk; 155 }
154 in +=chunk; 156 inl -= chunk;
155 out+=chunk; 157 in += chunk;
156 if (inl<chunk) chunk=inl; 158 out += chunk;
159 if (inl < chunk)
160 chunk = inl;
157 } 161 }
158 162
159 return 1; 163 return 1;
160 } 164}
161 165
162static int des_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, 166static int
163 const unsigned char *in, size_t inl) 167des_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
164 { 168 const unsigned char *in, size_t inl)
165 while (inl>=EVP_MAXCHUNK) 169{
166 { 170 while (inl >= EVP_MAXCHUNK) {
167 DES_cfb_encrypt(in,out,8,(long)EVP_MAXCHUNK,ctx->cipher_data, 171 DES_cfb_encrypt(in, out, 8, (long)EVP_MAXCHUNK,
168 (DES_cblock *)ctx->iv,ctx->encrypt); 172 ctx->cipher_data, (DES_cblock *)ctx->iv, ctx->encrypt);
169 inl-=EVP_MAXCHUNK; 173 inl -= EVP_MAXCHUNK;
170 in +=EVP_MAXCHUNK; 174 in += EVP_MAXCHUNK;
171 out+=EVP_MAXCHUNK; 175 out += EVP_MAXCHUNK;
172 } 176 }
173 if (inl) 177 if (inl)
174 DES_cfb_encrypt(in,out,8,(long)inl,ctx->cipher_data, 178 DES_cfb_encrypt(in, out, 8,(long)inl, ctx->cipher_data,
175 (DES_cblock *)ctx->iv,ctx->encrypt); 179 (DES_cblock *)ctx->iv, ctx->encrypt);
176 return 1; 180 return 1;
177 } 181}
178 182
179BLOCK_CIPHER_defs(des, DES_key_schedule, NID_des, 8, 8, 8, 64, 183BLOCK_CIPHER_defs(des, DES_key_schedule, NID_des, 8, 8, 8, 64,
180 EVP_CIPH_RAND_KEY, des_init_key, NULL, 184 EVP_CIPH_RAND_KEY, des_init_key, NULL,
181 EVP_CIPHER_set_asn1_iv, 185 EVP_CIPHER_set_asn1_iv,
182 EVP_CIPHER_get_asn1_iv, 186 EVP_CIPHER_get_asn1_iv,
183 des_ctrl) 187 des_ctrl)
184 188
185BLOCK_CIPHER_def_cfb(des,DES_key_schedule,NID_des,8,8,1, 189BLOCK_CIPHER_def_cfb(des, DES_key_schedule, NID_des, 8,8, 1,
186 EVP_CIPH_RAND_KEY, des_init_key,NULL, 190 EVP_CIPH_RAND_KEY, des_init_key, NULL,
187 EVP_CIPHER_set_asn1_iv, 191 EVP_CIPHER_set_asn1_iv,
188 EVP_CIPHER_get_asn1_iv,des_ctrl) 192 EVP_CIPHER_get_asn1_iv, des_ctrl)
189 193
190BLOCK_CIPHER_def_cfb(des,DES_key_schedule,NID_des,8,8,8, 194BLOCK_CIPHER_def_cfb(des, DES_key_schedule, NID_des, 8,8, 8,
191 EVP_CIPH_RAND_KEY,des_init_key,NULL, 195 EVP_CIPH_RAND_KEY, des_init_key, NULL,
192 EVP_CIPHER_set_asn1_iv, 196 EVP_CIPHER_set_asn1_iv,
193 EVP_CIPHER_get_asn1_iv,des_ctrl) 197 EVP_CIPHER_get_asn1_iv, des_ctrl)
194 198
195static int des_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, 199static int
196 const unsigned char *iv, int enc) 200des_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
197 { 201 const unsigned char *iv, int enc)
202{
198 DES_cblock *deskey = (DES_cblock *)key; 203 DES_cblock *deskey = (DES_cblock *)key;
204
199#ifdef EVP_CHECK_DES_KEY 205#ifdef EVP_CHECK_DES_KEY
200 if(DES_set_key_checked(deskey,ctx->cipher_data) != 0) 206 if (DES_set_key_checked(deskey, ctx->cipher_data) != 0)
201 return 0; 207 return 0;
202#else 208#else
203 DES_set_key_unchecked(deskey,ctx->cipher_data); 209 DES_set_key_unchecked(deskey, ctx->cipher_data);
204#endif 210#endif
205 return 1; 211 return 1;
206 } 212}
207 213
208static int des_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) 214static int
209 { 215des_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
210 216{
211 switch(type) 217 switch (type) {
212 {
213 case EVP_CTRL_RAND_KEY: 218 case EVP_CTRL_RAND_KEY:
214 if (RAND_bytes(ptr, 8) <= 0) 219 if (RAND_bytes(ptr, 8) <= 0)
215 return 0; 220 return 0;
@@ -218,7 +223,7 @@ static int des_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
218 223
219 default: 224 default:
220 return -1; 225 return -1;
221 }
222 } 226 }
227}
223 228
224#endif 229#endif