]>
Commit | Line | Data |
---|---|---|
aa6bb135 | 1 | /* |
c4d3c19b | 2 | * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved. |
d02b48c6 | 3 | * |
aa6bb135 RS |
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 | |
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> | |
d02b48c6 | 18 | |
0f113f3e MC |
19 | typedef struct { |
20 | union { | |
21 | double align; | |
22 | DES_key_schedule ks; | |
23 | } ks; | |
24 | union { | |
7687f525 AP |
25 | void (*cbc) (const void *, void *, size_t, |
26 | const DES_key_schedule *, unsigned char *); | |
0f113f3e MC |
27 | } stream; |
28 | } EVP_DES_KEY; | |
c5d975a7 | 29 | |
0f113f3e | 30 | # if defined(AES_ASM) && (defined(__sparc) || defined(__sparc__)) |
7687f525 | 31 | /* ----------^^^ this is not a typo, just a way to detect that |
c5d975a7 | 32 | * assembler support was in general requested... */ |
0f113f3e | 33 | # include "sparc_arch.h" |
c5d975a7 AP |
34 | |
35 | extern unsigned int OPENSSL_sparcv9cap_P[]; | |
36 | ||
0f113f3e | 37 | # define SPARC_DES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_DES) |
c5d975a7 | 38 | |
0f113f3e MC |
39 | void des_t4_key_expand(const void *key, DES_key_schedule *ks); |
40 | void des_t4_cbc_encrypt(const void *inp, void *out, size_t len, | |
7687f525 | 41 | const DES_key_schedule *ks, unsigned char iv[8]); |
0f113f3e | 42 | void des_t4_cbc_decrypt(const void *inp, void *out, size_t len, |
7687f525 | 43 | const DES_key_schedule *ks, unsigned char iv[8]); |
0f113f3e | 44 | # endif |
c5d975a7 | 45 | |
1921eaad | 46 | static int des_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, |
0f113f3e | 47 | const unsigned char *iv, int enc); |
216659eb | 48 | static int des_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr); |
d02b48c6 | 49 | |
0f113f3e MC |
50 | /* |
51 | * Because of various casts and different names can't use | |
52 | * IMPLEMENT_BLOCK_CIPHER | |
53 | */ | |
edf0bfb5 | 54 | |
1921eaad | 55 | static int des_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, |
0f113f3e | 56 | const unsigned char *in, size_t inl) |
57ae2e24 | 57 | { |
0f113f3e MC |
58 | BLOCK_CIPHER_ecb_loop() |
59 | DES_ecb_encrypt((DES_cblock *)(in + i), (DES_cblock *)(out + i), | |
44ab2dfd | 60 | EVP_CIPHER_CTX_get_cipher_data(ctx), |
6435f0f6 | 61 | EVP_CIPHER_CTX_encrypting(ctx)); |
0f113f3e | 62 | return 1; |
57ae2e24 | 63 | } |
d02b48c6 | 64 | |
1921eaad | 65 | static int des_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, |
0f113f3e | 66 | const unsigned char *in, size_t inl) |
57ae2e24 | 67 | { |
0f113f3e | 68 | while (inl >= EVP_MAXCHUNK) { |
6435f0f6 RL |
69 | int num = EVP_CIPHER_CTX_num(ctx); |
70 | DES_ofb64_encrypt(in, out, (long)EVP_MAXCHUNK, | |
44ab2dfd | 71 | EVP_CIPHER_CTX_get_cipher_data(ctx), |
6435f0f6 RL |
72 | (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx), &num); |
73 | EVP_CIPHER_CTX_set_num(ctx, num); | |
0f113f3e MC |
74 | inl -= EVP_MAXCHUNK; |
75 | in += EVP_MAXCHUNK; | |
76 | out += EVP_MAXCHUNK; | |
77 | } | |
6435f0f6 RL |
78 | if (inl) { |
79 | int num = EVP_CIPHER_CTX_num(ctx); | |
44ab2dfd MC |
80 | DES_ofb64_encrypt(in, out, (long)inl, |
81 | EVP_CIPHER_CTX_get_cipher_data(ctx), | |
6435f0f6 RL |
82 | (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx), &num); |
83 | EVP_CIPHER_CTX_set_num(ctx, num); | |
84 | } | |
0f113f3e | 85 | return 1; |
57ae2e24 DSH |
86 | } |
87 | ||
1921eaad | 88 | static int des_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, |
0f113f3e | 89 | const unsigned char *in, size_t inl) |
57ae2e24 | 90 | { |
44ab2dfd | 91 | EVP_DES_KEY *dat = (EVP_DES_KEY *) EVP_CIPHER_CTX_get_cipher_data(ctx); |
c5d975a7 | 92 | |
7687f525 AP |
93 | if (dat->stream.cbc != NULL) { |
94 | (*dat->stream.cbc) (in, out, inl, &dat->ks.ks, | |
95 | EVP_CIPHER_CTX_iv_noconst(ctx)); | |
0f113f3e MC |
96 | return 1; |
97 | } | |
98 | while (inl >= EVP_MAXCHUNK) { | |
7687f525 | 99 | DES_ncbc_encrypt(in, out, (long)EVP_MAXCHUNK, |
44ab2dfd | 100 | EVP_CIPHER_CTX_get_cipher_data(ctx), |
7687f525 AP |
101 | (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx), |
102 | EVP_CIPHER_CTX_encrypting(ctx)); | |
0f113f3e MC |
103 | inl -= EVP_MAXCHUNK; |
104 | in += EVP_MAXCHUNK; | |
105 | out += EVP_MAXCHUNK; | |
106 | } | |
107 | if (inl) | |
44ab2dfd MC |
108 | DES_ncbc_encrypt(in, out, (long)inl, |
109 | EVP_CIPHER_CTX_get_cipher_data(ctx), | |
7687f525 AP |
110 | (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx), |
111 | EVP_CIPHER_CTX_encrypting(ctx)); | |
0f113f3e | 112 | return 1; |
57ae2e24 DSH |
113 | } |
114 | ||
8c6336b0 | 115 | static int des_cfb64_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, |
0f113f3e | 116 | const unsigned char *in, size_t inl) |
57ae2e24 | 117 | { |
0f113f3e | 118 | while (inl >= EVP_MAXCHUNK) { |
6435f0f6 RL |
119 | int num = EVP_CIPHER_CTX_num(ctx); |
120 | DES_cfb64_encrypt(in, out, (long)EVP_MAXCHUNK, | |
44ab2dfd | 121 | EVP_CIPHER_CTX_get_cipher_data(ctx), |
6435f0f6 RL |
122 | (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx), &num, |
123 | EVP_CIPHER_CTX_encrypting(ctx)); | |
124 | EVP_CIPHER_CTX_set_num(ctx, num); | |
0f113f3e MC |
125 | inl -= EVP_MAXCHUNK; |
126 | in += EVP_MAXCHUNK; | |
127 | out += EVP_MAXCHUNK; | |
128 | } | |
6435f0f6 RL |
129 | if (inl) { |
130 | int num = EVP_CIPHER_CTX_num(ctx); | |
44ab2dfd MC |
131 | DES_cfb64_encrypt(in, out, (long)inl, |
132 | EVP_CIPHER_CTX_get_cipher_data(ctx), | |
6435f0f6 RL |
133 | (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx), &num, |
134 | EVP_CIPHER_CTX_encrypting(ctx)); | |
135 | EVP_CIPHER_CTX_set_num(ctx, num); | |
136 | } | |
0f113f3e | 137 | return 1; |
57ae2e24 DSH |
138 | } |
139 | ||
0f113f3e MC |
140 | /* |
141 | * Although we have a CFB-r implementation for DES, it doesn't pack the right | |
142 | * way, so wrap it here | |
143 | */ | |
8c6336b0 | 144 | static int des_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, |
0f113f3e MC |
145 | const unsigned char *in, size_t inl) |
146 | { | |
147 | size_t n, chunk = EVP_MAXCHUNK / 8; | |
148 | unsigned char c[1], d[1]; | |
8c6336b0 | 149 | |
0f113f3e MC |
150 | if (inl < chunk) |
151 | chunk = inl; | |
b444ac3e | 152 | |
0f113f3e MC |
153 | while (inl && inl >= chunk) { |
154 | for (n = 0; n < chunk * 8; ++n) { | |
155 | c[0] = (in[n / 8] & (1 << (7 - n % 8))) ? 0x80 : 0; | |
44ab2dfd | 156 | DES_cfb_encrypt(c, d, 1, 1, EVP_CIPHER_CTX_get_cipher_data(ctx), |
7687f525 AP |
157 | (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx), |
158 | EVP_CIPHER_CTX_encrypting(ctx)); | |
0f113f3e MC |
159 | out[n / 8] = |
160 | (out[n / 8] & ~(0x80 >> (unsigned int)(n % 8))) | | |
161 | ((d[0] & 0x80) >> (unsigned int)(n % 8)); | |
162 | } | |
163 | inl -= chunk; | |
164 | in += chunk; | |
165 | out += chunk; | |
166 | if (inl < chunk) | |
167 | chunk = inl; | |
168 | } | |
b444ac3e | 169 | |
8c6336b0 | 170 | return 1; |
0f113f3e | 171 | } |
8c6336b0 AP |
172 | |
173 | static int des_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | |
0f113f3e MC |
174 | const unsigned char *in, size_t inl) |
175 | { | |
176 | while (inl >= EVP_MAXCHUNK) { | |
7687f525 | 177 | DES_cfb_encrypt(in, out, 8, (long)EVP_MAXCHUNK, |
44ab2dfd | 178 | EVP_CIPHER_CTX_get_cipher_data(ctx), |
7687f525 AP |
179 | (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx), |
180 | EVP_CIPHER_CTX_encrypting(ctx)); | |
0f113f3e MC |
181 | inl -= EVP_MAXCHUNK; |
182 | in += EVP_MAXCHUNK; | |
183 | out += EVP_MAXCHUNK; | |
184 | } | |
b444ac3e | 185 | if (inl) |
44ab2dfd MC |
186 | DES_cfb_encrypt(in, out, 8, (long)inl, |
187 | EVP_CIPHER_CTX_get_cipher_data(ctx), | |
7687f525 AP |
188 | (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx), |
189 | EVP_CIPHER_CTX_encrypting(ctx)); | |
8c6336b0 | 190 | return 1; |
0f113f3e | 191 | } |
8c6336b0 | 192 | |
c5d975a7 | 193 | BLOCK_CIPHER_defs(des, EVP_DES_KEY, NID_des, 8, 8, 8, 64, |
0f113f3e MC |
194 | EVP_CIPH_RAND_KEY, des_init_key, NULL, |
195 | EVP_CIPHER_set_asn1_iv, EVP_CIPHER_get_asn1_iv, des_ctrl) | |
d02b48c6 | 196 | |
0f113f3e MC |
197 | BLOCK_CIPHER_def_cfb(des, EVP_DES_KEY, NID_des, 8, 8, 1, |
198 | EVP_CIPH_RAND_KEY, des_init_key, NULL, | |
199 | EVP_CIPHER_set_asn1_iv, EVP_CIPHER_get_asn1_iv, des_ctrl) | |
8c6336b0 | 200 | |
0f113f3e MC |
201 | BLOCK_CIPHER_def_cfb(des, EVP_DES_KEY, NID_des, 8, 8, 8, |
202 | EVP_CIPH_RAND_KEY, des_init_key, NULL, | |
203 | EVP_CIPHER_set_asn1_iv, EVP_CIPHER_get_asn1_iv, des_ctrl) | |
edf0bfb5 | 204 | |
1921eaad | 205 | static int des_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, |
0f113f3e MC |
206 | const unsigned char *iv, int enc) |
207 | { | |
208 | DES_cblock *deskey = (DES_cblock *)key; | |
44ab2dfd | 209 | EVP_DES_KEY *dat = (EVP_DES_KEY *) EVP_CIPHER_CTX_get_cipher_data(ctx); |
c5d975a7 | 210 | |
0f113f3e MC |
211 | dat->stream.cbc = NULL; |
212 | # if defined(SPARC_DES_CAPABLE) | |
213 | if (SPARC_DES_CAPABLE) { | |
ecdd0ff7 | 214 | int mode = EVP_CIPHER_CTX_mode(ctx); |
c5d975a7 | 215 | |
0f113f3e MC |
216 | if (mode == EVP_CIPH_CBC_MODE) { |
217 | des_t4_key_expand(key, &dat->ks.ks); | |
218 | dat->stream.cbc = enc ? des_t4_cbc_encrypt : des_t4_cbc_decrypt; | |
219 | return 1; | |
220 | } | |
221 | } | |
222 | # endif | |
44ab2dfd | 223 | DES_set_key_unchecked(deskey, EVP_CIPHER_CTX_get_cipher_data(ctx)); |
0f113f3e MC |
224 | return 1; |
225 | } | |
57ae2e24 | 226 | |
216659eb | 227 | static int des_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) |
0f113f3e MC |
228 | { |
229 | ||
230 | switch (type) { | |
231 | case EVP_CTRL_RAND_KEY: | |
4cffafe9 | 232 | if (RAND_priv_bytes(ptr, 8) <= 0) |
0f113f3e MC |
233 | return 0; |
234 | DES_set_odd_parity((DES_cblock *)ptr); | |
235 | return 1; | |
216659eb | 236 | |
0f113f3e MC |
237 | default: |
238 | return -1; | |
239 | } | |
240 | } | |
216659eb | 241 | |
d02f751c | 242 | #endif |