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
|
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is SHA 180-1 Reference Implementation (Optimized).
*
* The Initial Developer of the Original Code is
* Paul Kocher of Cryptography Research.
* Portions created by the Initial Developer are Copyright (C) 1995-9
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef _SHA_FAST_H_
#define _SHA_FAST_H_
#include "prlong.h"
#define SHA1_INPUT_LEN 64
#if defined(IS_64) && !defined(__sparc)
typedef PRUint64 SHA_HW_t;
#define SHA1_USING_64_BIT 1
#else
typedef PRUint32 SHA_HW_t;
#endif
struct SHA1ContextStr {
union {
PRUint32 w[16]; /* input buffer */
PRUint8 b[64];
} u;
PRUint64 size; /* count of hashed bytes. */
SHA_HW_t H[22]; /* 5 state variables, 16 tmp values, 1 extra */
};
#if defined(_MSC_VER) && defined(_X86_)
#if defined(IS_LITTLE_ENDIAN)
#ifndef FORCEINLINE
#if (_MSC_VER >= 1200)
#define FORCEINLINE __forceinline
#else
#define FORCEINLINE __inline
#endif /* _MSC_VER */
#endif /* !defined FORCEINLINE */
#define FASTCALL __fastcall
static FORCEINLINE PRUint32 FASTCALL
swap4b(PRUint32 dwd)
{
__asm {
mov eax,dwd
bswap eax
}
}
#define SHA_HTONL(x) swap4b(x)
#endif /* IS_LITTLE_ENDIAN */
#pragma intrinsic (_lrotr, _lrotl)
#define SHA_ROTL(x,n) _lrotl(x,n)
#define SHA_ROTL_IS_DEFINED 1
#endif /* _MSC_VER && _X86_ */
#if defined(__GNUC__)
/* __x86_64__ and __x86_64 are defined by GCC on x86_64 CPUs */
#if defined( SHA1_USING_64_BIT )
static __inline__ PRUint64 SHA_ROTL(PRUint64 x, PRUint32 n)
{
PRUint32 t = (PRUint32)x;
return ((t << n) | (t >> (32 - n)));
}
#else
static __inline__ PRUint32 SHA_ROTL(PRUint32 t, PRUint32 n)
{
return ((t << n) | (t >> (32 - n)));
}
#endif
#define SHA_ROTL_IS_DEFINED 1
#if defined(_X86_) || defined(__x86_64__) || defined(__x86_64)
static __inline__ PRUint32 swap4b(PRUint32 value)
{
__asm__("bswap %0" : "+r" (value));
return (value);
}
#define SHA_HTONL(x) swap4b(x)
#endif /* x86 family */
#endif /* __GNUC__ */
#if !defined(SHA_ROTL_IS_DEFINED)
#define SHA_NEED_TMP_VARIABLE 1
#define SHA_ROTL(X,n) (tmp = (X), ((tmp) << (n)) | ((tmp) >> (32-(n))))
#endif
#if defined(_X86_) || defined(__x86_64__) || defined(__x86_64)
#define SHA_ALLOW_UNALIGNED_ACCESS 1
#endif
#if !defined(SHA_HTONL)
#define SHA_MASK 0x00FF00FF
#if defined(IS_LITTLE_ENDIAN)
#undef SHA_NEED_TMP_VARIABLE
#define SHA_NEED_TMP_VARIABLE 1
#define SHA_HTONL(x) (tmp = (x), tmp = (tmp << 16) | (tmp >> 16), \
((tmp & SHA_MASK) << 8) | ((tmp >> 8) & SHA_MASK))
#else
#define SHA_HTONL(x) (x)
#endif
#endif
#define SHA_BYTESWAP(x) x = SHA_HTONL(x)
#define SHA_STORE(n) ((PRUint32*)hashout)[n] = SHA_HTONL(ctx->H[n])
#if defined(SHA_ALLOW_UNALIGNED_ACCESS)
#define SHA_STORE_RESULT \
SHA_STORE(0); \
SHA_STORE(1); \
SHA_STORE(2); \
SHA_STORE(3); \
SHA_STORE(4);
#elif defined(IS_LITTLE_ENDIAN) || defined( SHA1_USING_64_BIT )
#define SHA_STORE_RESULT \
if (!((ptrdiff_t)hashout % sizeof(PRUint32))) { \
SHA_STORE(0); \
SHA_STORE(1); \
SHA_STORE(2); \
SHA_STORE(3); \
SHA_STORE(4); \
} else { \
ctx->u.w[0] = SHA_HTONL(ctx->H[0]); \
ctx->u.w[1] = SHA_HTONL(ctx->H[1]); \
ctx->u.w[2] = SHA_HTONL(ctx->H[2]); \
ctx->u.w[3] = SHA_HTONL(ctx->H[3]); \
ctx->u.w[4] = SHA_HTONL(ctx->H[4]); \
memcpy(hashout, ctx->u.w, SHA1_LENGTH); \
}
#else
#define SHA_STORE_RESULT \
if (!((ptrdiff_t)hashout % sizeof(PRUint32))) { \
SHA_STORE(0); \
SHA_STORE(1); \
SHA_STORE(2); \
SHA_STORE(3); \
SHA_STORE(4); \
} else { \
memcpy(hashout, ctx->H, SHA1_LENGTH); \
}
#endif
#endif /* _SHA_FAST_H_ */
|
