File: blake2b-round.h

package info (click to toggle)
libb2 0.98.1-1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye, buster, sid
  • size: 1,304 kB
  • sloc: ansic: 19,855; makefile: 128; sh: 13
file content (160 lines) | stat: -rw-r--r-- 5,025 bytes parent folder | download | duplicates (4)
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
/*
   BLAKE2 reference source code package - optimized C implementations

   Written in 2012 by Samuel Neves <sneves@dei.uc.pt>

   To the extent possible under law, the author(s) have dedicated all copyright
   and related and neighboring rights to this software to the public domain
   worldwide. This software is distributed without any warranty.

   You should have received a copy of the CC0 Public Domain Dedication along with
   this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
*/
#pragma once
#ifndef __BLAKE2B_ROUND_H__
#define __BLAKE2B_ROUND_H__

#define LOAD(p)  _mm_load_si128( (__m128i *)(p) )
#define STORE(p,r) _mm_store_si128((__m128i *)(p), r)

#define LOADU(p)  _mm_loadu_si128( (__m128i *)(p) )
#define STOREU(p,r) _mm_storeu_si128((__m128i *)(p), r)

#define TOF(reg) _mm_castsi128_ps((reg))
#define TOI(reg) _mm_castps_si128((reg))

#define LIKELY(x) __builtin_expect((x),1)


/* Microarchitecture-specific macros */
#ifndef HAVE_XOP
#ifdef HAVE_SSSE3
#define _mm_roti_epi64(x, c) \
    (-(c) == 32) ? _mm_shuffle_epi32((x), _MM_SHUFFLE(2,3,0,1))  \
    : (-(c) == 24) ? _mm_shuffle_epi8((x), r24) \
    : (-(c) == 16) ? _mm_shuffle_epi8((x), r16) \
    : (-(c) == 63) ? _mm_xor_si128(_mm_srli_epi64((x), -(c)), _mm_add_epi64((x), (x)))  \
    : _mm_xor_si128(_mm_srli_epi64((x), -(c)), _mm_slli_epi64((x), 64-(-(c))))
#else
#define _mm_roti_epi64(r, c) _mm_xor_si128(_mm_srli_epi64( (r), -(c) ),_mm_slli_epi64( (r), 64-(-(c)) ))
#endif
#else
/* ... */
#endif



#define G1(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h,b0,b1) \
  row1l = _mm_add_epi64(_mm_add_epi64(row1l, b0), row2l); \
  row1h = _mm_add_epi64(_mm_add_epi64(row1h, b1), row2h); \
  \
  row4l = _mm_xor_si128(row4l, row1l); \
  row4h = _mm_xor_si128(row4h, row1h); \
  \
  row4l = _mm_roti_epi64(row4l, -32); \
  row4h = _mm_roti_epi64(row4h, -32); \
  \
  row3l = _mm_add_epi64(row3l, row4l); \
  row3h = _mm_add_epi64(row3h, row4h); \
  \
  row2l = _mm_xor_si128(row2l, row3l); \
  row2h = _mm_xor_si128(row2h, row3h); \
  \
  row2l = _mm_roti_epi64(row2l, -24); \
  row2h = _mm_roti_epi64(row2h, -24); \
 
#define G2(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h,b0,b1) \
  row1l = _mm_add_epi64(_mm_add_epi64(row1l, b0), row2l); \
  row1h = _mm_add_epi64(_mm_add_epi64(row1h, b1), row2h); \
  \
  row4l = _mm_xor_si128(row4l, row1l); \
  row4h = _mm_xor_si128(row4h, row1h); \
  \
  row4l = _mm_roti_epi64(row4l, -16); \
  row4h = _mm_roti_epi64(row4h, -16); \
  \
  row3l = _mm_add_epi64(row3l, row4l); \
  row3h = _mm_add_epi64(row3h, row4h); \
  \
  row2l = _mm_xor_si128(row2l, row3l); \
  row2h = _mm_xor_si128(row2h, row3h); \
  \
  row2l = _mm_roti_epi64(row2l, -63); \
  row2h = _mm_roti_epi64(row2h, -63); \
 
#if defined(HAVE_SSSE3)
#define DIAGONALIZE(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h) \
  t0 = _mm_alignr_epi8(row2h, row2l, 8); \
  t1 = _mm_alignr_epi8(row2l, row2h, 8); \
  row2l = t0; \
  row2h = t1; \
  \
  t0 = row3l; \
  row3l = row3h; \
  row3h = t0;    \
  \
  t0 = _mm_alignr_epi8(row4h, row4l, 8); \
  t1 = _mm_alignr_epi8(row4l, row4h, 8); \
  row4l = t1; \
  row4h = t0;

#define UNDIAGONALIZE(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h) \
  t0 = _mm_alignr_epi8(row2l, row2h, 8); \
  t1 = _mm_alignr_epi8(row2h, row2l, 8); \
  row2l = t0; \
  row2h = t1; \
  \
  t0 = row3l; \
  row3l = row3h; \
  row3h = t0; \
  \
  t0 = _mm_alignr_epi8(row4l, row4h, 8); \
  t1 = _mm_alignr_epi8(row4h, row4l, 8); \
  row4l = t1; \
  row4h = t0;
#else

#define DIAGONALIZE(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h) \
  t0 = row4l;\
  t1 = row2l;\
  row4l = row3l;\
  row3l = row3h;\
  row3h = row4l;\
  row4l = _mm_unpackhi_epi64(row4h, _mm_unpacklo_epi64(t0, t0)); \
  row4h = _mm_unpackhi_epi64(t0, _mm_unpacklo_epi64(row4h, row4h)); \
  row2l = _mm_unpackhi_epi64(row2l, _mm_unpacklo_epi64(row2h, row2h)); \
  row2h = _mm_unpackhi_epi64(row2h, _mm_unpacklo_epi64(t1, t1))

#define UNDIAGONALIZE(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h) \
  t0 = row3l;\
  row3l = row3h;\
  row3h = t0;\
  t0 = row2l;\
  t1 = row4l;\
  row2l = _mm_unpackhi_epi64(row2h, _mm_unpacklo_epi64(row2l, row2l)); \
  row2h = _mm_unpackhi_epi64(t0, _mm_unpacklo_epi64(row2h, row2h)); \
  row4l = _mm_unpackhi_epi64(row4l, _mm_unpacklo_epi64(row4h, row4h)); \
  row4h = _mm_unpackhi_epi64(row4h, _mm_unpacklo_epi64(t1, t1))

#endif

#if defined(HAVE_SSE4_1)
#include "blake2b-load-sse41.h"
#else
#include "blake2b-load-sse2.h"
#endif

#define ROUND(r) \
  LOAD_MSG_ ##r ##_1(b0, b1); \
  G1(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h,b0,b1); \
  LOAD_MSG_ ##r ##_2(b0, b1); \
  G2(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h,b0,b1); \
  DIAGONALIZE(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h); \
  LOAD_MSG_ ##r ##_3(b0, b1); \
  G1(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h,b0,b1); \
  LOAD_MSG_ ##r ##_4(b0, b1); \
  G2(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h,b0,b1); \
  UNDIAGONALIZE(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h);

#endif