1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
|
/*
* Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/*
* DES low level APIs are deprecated for public use, but still ok for internal
* use.
*/
#include "internal/deprecated.h"
#include "cipher_tdes_default.h"
#define ks1 tks.ks[0]
#define ks2 tks.ks[1]
#define ks3 tks.ks[2]
static int ossl_cipher_hw_tdes_ede2_initkey(PROV_CIPHER_CTX *ctx,
const unsigned char *key,
size_t keylen)
{
PROV_TDES_CTX *tctx = (PROV_TDES_CTX *)ctx;
DES_cblock *deskey = (DES_cblock *)key;
tctx->tstream.cbc = NULL;
# if defined(SPARC_DES_CAPABLE)
if (SPARC_DES_CAPABLE) {
if (ctx->mode == EVP_CIPH_CBC_MODE) {
des_t4_key_expand(&deskey[0], &tctx->ks1);
des_t4_key_expand(&deskey[1], &tctx->ks2);
memcpy(&tctx->ks3, &tctx->ks1, sizeof(tctx->ks1));
tctx->tstream.cbc = ctx->enc ? des_t4_ede3_cbc_encrypt :
des_t4_ede3_cbc_decrypt;
return 1;
}
}
# endif
DES_set_key_unchecked(&deskey[0], &tctx->ks1);
DES_set_key_unchecked(&deskey[1], &tctx->ks2);
memcpy(&tctx->ks3, &tctx->ks1, sizeof(tctx->ks1));
return 1;
}
static int ossl_cipher_hw_tdes_ofb(PROV_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t inl)
{
PROV_TDES_CTX *tctx = (PROV_TDES_CTX *)ctx;
int num = ctx->num;
while (inl >= MAXCHUNK) {
DES_ede3_ofb64_encrypt(in, out, (long)MAXCHUNK, &tctx->ks1, &tctx->ks2,
&tctx->ks3, (DES_cblock *)ctx->iv, &num);
inl -= MAXCHUNK;
in += MAXCHUNK;
out += MAXCHUNK;
}
if (inl > 0) {
DES_ede3_ofb64_encrypt(in, out, (long)inl, &tctx->ks1, &tctx->ks2,
&tctx->ks3, (DES_cblock *)ctx->iv, &num);
}
ctx->num = num;
return 1;
}
static int ossl_cipher_hw_tdes_cfb(PROV_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t inl)
{
PROV_TDES_CTX *tctx = (PROV_TDES_CTX *)ctx;
int num = ctx->num;
while (inl >= MAXCHUNK) {
DES_ede3_cfb64_encrypt(in, out, (long)MAXCHUNK,
&tctx->ks1, &tctx->ks2, &tctx->ks3,
(DES_cblock *)ctx->iv, &num, ctx->enc);
inl -= MAXCHUNK;
in += MAXCHUNK;
out += MAXCHUNK;
}
if (inl > 0) {
DES_ede3_cfb64_encrypt(in, out, (long)inl,
&tctx->ks1, &tctx->ks2, &tctx->ks3,
(DES_cblock *)ctx->iv, &num, ctx->enc);
}
ctx->num = num;
return 1;
}
/*
* Although we have a CFB-r implementation for 3-DES, it doesn't pack the
* right way, so wrap it here
*/
static int ossl_cipher_hw_tdes_cfb1(PROV_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t inl)
{
PROV_TDES_CTX *tctx = (PROV_TDES_CTX *)ctx;
size_t n;
unsigned char c[1], d[1];
if ((ctx->flags & EVP_CIPH_FLAG_LENGTH_BITS) == 0)
inl *= 8;
for (n = 0; n < inl; ++n) {
c[0] = (in[n / 8] & (1 << (7 - n % 8))) ? 0x80 : 0;
DES_ede3_cfb_encrypt(c, d, 1, 1,
&tctx->ks1, &tctx->ks2, &tctx->ks3,
(DES_cblock *)ctx->iv, ctx->enc);
out[n / 8] = (out[n / 8] & ~(0x80 >> (unsigned int)(n % 8)))
| ((d[0] & 0x80) >> (unsigned int)(n % 8));
}
return 1;
}
static int ossl_cipher_hw_tdes_cfb8(PROV_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t inl)
{
PROV_TDES_CTX *tctx = (PROV_TDES_CTX *)ctx;
while (inl >= MAXCHUNK) {
DES_ede3_cfb_encrypt(in, out, 8, (long)MAXCHUNK,
&tctx->ks1, &tctx->ks2, &tctx->ks3,
(DES_cblock *)ctx->iv, ctx->enc);
inl -= MAXCHUNK;
in += MAXCHUNK;
out += MAXCHUNK;
}
if (inl > 0)
DES_ede3_cfb_encrypt(in, out, 8, (long)inl,
&tctx->ks1, &tctx->ks2, &tctx->ks3,
(DES_cblock *)ctx->iv, ctx->enc);
return 1;
}
PROV_CIPHER_HW_tdes_mode(ede3, ofb)
PROV_CIPHER_HW_tdes_mode(ede3, cfb)
PROV_CIPHER_HW_tdes_mode(ede3, cfb1)
PROV_CIPHER_HW_tdes_mode(ede3, cfb8)
PROV_CIPHER_HW_tdes_mode(ede2, ecb)
PROV_CIPHER_HW_tdes_mode(ede2, cbc)
PROV_CIPHER_HW_tdes_mode(ede2, ofb)
PROV_CIPHER_HW_tdes_mode(ede2, cfb)
|