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
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
|
/*
* Copyright 2001-2024 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
*/
/*
* IBM S390X support for AES modes ecb, cbc, ofb, cfb, ctr.
* This file is included by cipher_aes_hw.c
*/
#include "s390x_arch.h"
#include <stdio.h>
#define s390x_aes_cbc_initkey cipher_hw_aes_initkey
#define s390x_aes_cfb1_initkey cipher_hw_aes_initkey
#define s390x_aes_ctr_initkey cipher_hw_aes_initkey
#define s390x_aes_cbc_cipher_hw ossl_cipher_hw_generic_cbc
#define s390x_aes_cfb1_cipher_hw ossl_cipher_hw_generic_cfb1
#define s390x_aes_ctr_cipher_hw ossl_cipher_hw_generic_ctr
#define S390X_aes_128_ofb128_CAPABLE S390X_aes_128_ofb_CAPABLE
#define S390X_aes_192_ofb128_CAPABLE S390X_aes_192_ofb_CAPABLE
#define S390X_aes_256_ofb128_CAPABLE S390X_aes_256_ofb_CAPABLE
#define S390X_aes_128_cfb128_CAPABLE S390X_aes_128_cfb_CAPABLE
#define S390X_aes_192_cfb128_CAPABLE S390X_aes_192_cfb_CAPABLE
#define S390X_aes_256_cfb128_CAPABLE S390X_aes_256_cfb_CAPABLE
static int s390x_aes_ecb_initkey(PROV_CIPHER_CTX *dat,
const unsigned char *key, size_t keylen)
{
PROV_AES_CTX *adat = (PROV_AES_CTX *)dat;
adat->plat.s390x.fc = S390X_AES_FC(keylen);
memcpy(adat->plat.s390x.param.km.k, key, keylen);
return 1;
}
static int s390x_aes_ecb_cipher_hw(PROV_CIPHER_CTX *dat, unsigned char *out,
const unsigned char *in, size_t len)
{
PROV_AES_CTX *adat = (PROV_AES_CTX *)dat;
unsigned int modifier = adat->base.enc ? 0 : S390X_DECRYPT;
s390x_km(in, len, out, adat->plat.s390x.fc | modifier,
&adat->plat.s390x.param.km);
return 1;
}
static int s390x_aes_ofb128_initkey(PROV_CIPHER_CTX *dat,
const unsigned char *key, size_t keylen)
{
PROV_AES_CTX *adat = (PROV_AES_CTX *)dat;
memcpy(adat->plat.s390x.param.kmo_kmf.k, key, keylen);
adat->plat.s390x.fc = S390X_AES_FC(keylen);
return 1;
}
static int s390x_aes_ofb128_cipher_hw(PROV_CIPHER_CTX *dat, unsigned char *out,
const unsigned char *in, size_t len)
{
PROV_AES_CTX *adat = (PROV_AES_CTX *)dat;
int n = dat->num;
int rem;
memcpy(adat->plat.s390x.param.kmo_kmf.cv, dat->iv, dat->ivlen);
while (n && len) {
*out = *in ^ adat->plat.s390x.param.kmo_kmf.cv[n];
n = (n + 1) & 0xf;
--len;
++in;
++out;
}
rem = len & 0xf;
len &= ~(size_t)0xf;
if (len) {
s390x_kmo(in, len, out, adat->plat.s390x.fc,
&adat->plat.s390x.param.kmo_kmf);
out += len;
in += len;
}
if (rem) {
s390x_km(adat->plat.s390x.param.kmo_kmf.cv, 16,
adat->plat.s390x.param.kmo_kmf.cv,
adat->plat.s390x.fc,
adat->plat.s390x.param.kmo_kmf.k);
while (rem--) {
out[n] = in[n] ^ adat->plat.s390x.param.kmo_kmf.cv[n];
++n;
}
}
memcpy(dat->iv, adat->plat.s390x.param.kmo_kmf.cv, dat->ivlen);
dat->num = n;
return 1;
}
static int s390x_aes_cfb128_initkey(PROV_CIPHER_CTX *dat,
const unsigned char *key, size_t keylen)
{
PROV_AES_CTX *adat = (PROV_AES_CTX *)dat;
adat->plat.s390x.fc = S390X_AES_FC(keylen);
adat->plat.s390x.fc |= 16 << 24; /* 16 bytes cipher feedback */
memcpy(adat->plat.s390x.param.kmo_kmf.k, key, keylen);
return 1;
}
static int s390x_aes_cfb128_cipher_hw(PROV_CIPHER_CTX *dat, unsigned char *out,
const unsigned char *in, size_t len)
{
PROV_AES_CTX *adat = (PROV_AES_CTX *)dat;
unsigned int modifier = adat->base.enc ? 0 : S390X_DECRYPT;
int n = dat->num;
int rem;
unsigned char tmp;
memcpy(adat->plat.s390x.param.kmo_kmf.cv, dat->iv, dat->ivlen);
while (n && len) {
tmp = *in;
*out = adat->plat.s390x.param.kmo_kmf.cv[n] ^ tmp;
adat->plat.s390x.param.kmo_kmf.cv[n] = dat->enc ? *out : tmp;
n = (n + 1) & 0xf;
--len;
++in;
++out;
}
rem = len & 0xf;
len &= ~(size_t)0xf;
if (len) {
s390x_kmf(in, len, out, adat->plat.s390x.fc | modifier,
&adat->plat.s390x.param.kmo_kmf);
out += len;
in += len;
}
if (rem) {
s390x_km(adat->plat.s390x.param.kmo_kmf.cv, 16,
adat->plat.s390x.param.kmo_kmf.cv,
S390X_AES_FC(dat->keylen),
adat->plat.s390x.param.kmo_kmf.k);
while (rem--) {
tmp = in[n];
out[n] = adat->plat.s390x.param.kmo_kmf.cv[n] ^ tmp;
adat->plat.s390x.param.kmo_kmf.cv[n] = dat->enc ? out[n] : tmp;
++n;
}
}
memcpy(dat->iv, adat->plat.s390x.param.kmo_kmf.cv, dat->ivlen);
dat->num = n;
return 1;
}
static int s390x_aes_cfb8_initkey(PROV_CIPHER_CTX *dat,
const unsigned char *key, size_t keylen)
{
PROV_AES_CTX *adat = (PROV_AES_CTX *)dat;
adat->plat.s390x.fc = S390X_AES_FC(keylen);
adat->plat.s390x.fc |= 1 << 24; /* 1 byte cipher feedback */
memcpy(adat->plat.s390x.param.kmo_kmf.k, key, keylen);
return 1;
}
static int s390x_aes_cfb8_cipher_hw(PROV_CIPHER_CTX *dat, unsigned char *out,
const unsigned char *in, size_t len)
{
PROV_AES_CTX *adat = (PROV_AES_CTX *)dat;
unsigned int modifier = adat->base.enc ? 0 : S390X_DECRYPT;
memcpy(adat->plat.s390x.param.kmo_kmf.cv, dat->iv, dat->ivlen);
s390x_kmf(in, len, out, adat->plat.s390x.fc | modifier,
&adat->plat.s390x.param.kmo_kmf);
memcpy(dat->iv, adat->plat.s390x.param.kmo_kmf.cv, dat->ivlen);
return 1;
}
#define PROV_CIPHER_HW_declare(mode) \
static const PROV_CIPHER_HW s390x_aes_##mode = { \
s390x_aes_##mode##_initkey, \
s390x_aes_##mode##_cipher_hw, \
cipher_hw_aes_copyctx \
};
#define PROV_CIPHER_HW_select(mode) \
if ((keybits == 128 && S390X_aes_128_##mode##_CAPABLE) \
|| (keybits == 192 && S390X_aes_192_##mode##_CAPABLE) \
|| (keybits == 256 && S390X_aes_256_##mode##_CAPABLE)) \
return &s390x_aes_##mode;
|
