File: tiger.cpp

package info (click to toggle)
libcrypto++ 5.6.4-7
  • links: PTS
  • area: main
  • in suites: stretch
  • size: 11,892 kB
  • ctags: 13,256
  • sloc: cpp: 69,231; sh: 4,117; asm: 4,090; makefile: 363
file content (276 lines) | stat: -rw-r--r-- 6,453 bytes parent folder | download | duplicates (3)
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
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
// tiger.cpp - written and placed in the public domain by Wei Dai

#include "pch.h"
#include "config.h"

#include "tiger.h"
#include "misc.h"
#include "cpu.h"

NAMESPACE_BEGIN(CryptoPP)

void Tiger::InitState(HashWordType *state)
{
	state[0] = W64LIT(0x0123456789ABCDEF);
	state[1] = W64LIT(0xFEDCBA9876543210);
	state[2] = W64LIT(0xF096A5B4C3B2E187);
}

void Tiger::TruncatedFinal(byte *hash, size_t size)
{
	ThrowIfInvalidTruncatedSize(size);

	PadLastBlock(56, 0x01);
	CorrectEndianess(m_data, m_data, 56);

	m_data[7] = GetBitCountLo();

	Transform(m_state, m_data);
	CorrectEndianess(m_state, m_state, DigestSize());
	memcpy(hash, m_state, size);

	Restart();		// reinit for next use
}

void Tiger::Transform (word64 *digest, const word64 *X)
{
#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE && (CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32)
	if (HasSSE2())
	{
#ifdef __GNUC__
		__asm__ __volatile__
		(
		INTEL_NOPREFIX
		AS_PUSH_IF86(bx)
#else
	#if _MSC_VER < 1300
		const word64 *t = table;
		AS2(	mov		edx, t)
	#else
		AS2(	lea		edx, [table])
	#endif
		AS2(	mov		eax, digest)
		AS2(	mov		esi, X)
#endif
		AS2(	movq	mm0, [eax])
		AS2(	movq	mm1, [eax+1*8])
		AS2(	movq	mm5, mm1)
		AS2(	movq	mm2, [eax+2*8])
		AS2(	movq	mm7, [edx+4*2048+0*8])
		AS2(	movq	mm6, [edx+4*2048+1*8])
		AS2(	mov		ecx, esp)
		AS2(	and		esp, 0xfffffff0)
		AS2(	sub		esp, 8*8)
		AS_PUSH_IF86(cx)

#define SSE2_round(a,b,c,x,mul) \
		AS2(	pxor	c, [x])\
		AS2(	movd	ecx, c)\
		AS2(	movzx	edi, cl)\
		AS2(	movq	mm3, [edx+0*2048+edi*8])\
		AS2(	movzx	edi, ch)\
		AS2(	movq	mm4, [edx+3*2048+edi*8])\
		AS2(	shr		ecx, 16)\
		AS2(	movzx	edi, cl)\
		AS2(	pxor	mm3, [edx+1*2048+edi*8])\
		AS2(	movzx	edi, ch)\
		AS2(	pxor	mm4, [edx+2*2048+edi*8])\
		AS3(	pextrw	ecx, c, 2)\
		AS2(	movzx	edi, cl)\
		AS2(	pxor	mm3, [edx+2*2048+edi*8])\
		AS2(	movzx	edi, ch)\
		AS2(	pxor	mm4, [edx+1*2048+edi*8])\
		AS3(	pextrw	ecx, c, 3)\
		AS2(	movzx	edi, cl)\
		AS2(	pxor	mm3, [edx+3*2048+edi*8])\
		AS2(	psubq	a, mm3)\
		AS2(	movzx	edi, ch)\
		AS2(	pxor	mm4, [edx+0*2048+edi*8])\
		AS2(	paddq	b, mm4)\
		SSE2_mul_##mul(b)

#define SSE2_mul_5(b)	\
		AS2(	movq	mm3, b)\
		AS2(	psllq	b, 2)\
		AS2(	paddq	b, mm3)

#define SSE2_mul_7(b)	\
		AS2(	movq	mm3, b)\
		AS2(	psllq	b, 3)\
		AS2(	psubq	b, mm3)

#define SSE2_mul_9(b)	\
		AS2(	movq	mm3, b)\
		AS2(	psllq	b, 3)\
		AS2(	paddq	b, mm3)

#define label2_5 1
#define label2_7 2
#define label2_9 3

#define SSE2_pass(A,B,C,mul,X)	\
		AS2(	xor		ebx, ebx)\
		ASL(mul)\
		SSE2_round(A,B,C,X+0*8+ebx,mul)\
		SSE2_round(B,C,A,X+1*8+ebx,mul)\
		AS2(	cmp		ebx, 6*8)\
		ASJ(	je,		label2_##mul, f)\
		SSE2_round(C,A,B,X+2*8+ebx,mul)\
		AS2(	add		ebx, 3*8)\
		ASJ(	jmp,	mul, b)\
		ASL(label2_##mul)

#define SSE2_key_schedule(Y,X) \
		AS2(	movq	mm3, [X+7*8])\
		AS2(	pxor	mm3, mm6)\
		AS2(	movq	mm4, [X+0*8])\
		AS2(	psubq	mm4, mm3)\
		AS2(	movq	[Y+0*8], mm4)\
		AS2(	pxor	mm4, [X+1*8])\
		AS2(	movq	mm3, mm4)\
		AS2(	movq	[Y+1*8], mm4)\
		AS2(	paddq	mm4, [X+2*8])\
		AS2(	pxor	mm3, mm7)\
		AS2(	psllq	mm3, 19)\
		AS2(	movq	[Y+2*8], mm4)\
		AS2(	pxor	mm3, mm4)\
		AS2(	movq	mm4, [X+3*8])\
		AS2(	psubq	mm4, mm3)\
		AS2(	movq	[Y+3*8], mm4)\
		AS2(	pxor	mm4, [X+4*8])\
		AS2(	movq	mm3, mm4)\
		AS2(	movq	[Y+4*8], mm4)\
		AS2(	paddq	mm4, [X+5*8])\
		AS2(	pxor	mm3, mm7)\
		AS2(	psrlq	mm3, 23)\
		AS2(	movq	[Y+5*8], mm4)\
		AS2(	pxor	mm3, mm4)\
		AS2(	movq	mm4, [X+6*8])\
		AS2(	psubq	mm4, mm3)\
		AS2(	movq	[Y+6*8], mm4)\
		AS2(	pxor	mm4, [X+7*8])\
		AS2(	movq	mm3, mm4)\
		AS2(	movq	[Y+7*8], mm4)\
		AS2(	paddq	mm4, [Y+0*8])\
		AS2(	pxor	mm3, mm7)\
		AS2(	psllq	mm3, 19)\
		AS2(	movq	[Y+0*8], mm4)\
		AS2(	pxor	mm3, mm4)\
		AS2(	movq	mm4, [Y+1*8])\
		AS2(	psubq	mm4, mm3)\
		AS2(	movq	[Y+1*8], mm4)\
		AS2(	pxor	mm4, [Y+2*8])\
		AS2(	movq	mm3, mm4)\
		AS2(	movq	[Y+2*8], mm4)\
		AS2(	paddq	mm4, [Y+3*8])\
		AS2(	pxor	mm3, mm7)\
		AS2(	psrlq	mm3, 23)\
		AS2(	movq	[Y+3*8], mm4)\
		AS2(	pxor	mm3, mm4)\
		AS2(	movq	mm4, [Y+4*8])\
		AS2(	psubq	mm4, mm3)\
		AS2(	movq	[Y+4*8], mm4)\
		AS2(	pxor	mm4, [Y+5*8])\
		AS2(	movq	[Y+5*8], mm4)\
		AS2(	paddq	mm4, [Y+6*8])\
		AS2(	movq	[Y+6*8], mm4)\
		AS2(	pxor	mm4, [edx+4*2048+2*8])\
		AS2(	movq	mm3, [Y+7*8])\
		AS2(	psubq	mm3, mm4)\
		AS2(	movq	[Y+7*8], mm3)

#if CRYPTOPP_BOOL_X32
		SSE2_pass(mm0, mm1, mm2, 5, esi)
		SSE2_key_schedule(esp+8, esi)
		SSE2_pass(mm2, mm0, mm1, 7, esp+8)
		SSE2_key_schedule(esp+8, esp+8)
		SSE2_pass(mm1, mm2, mm0, 9, esp+8)
#else
		SSE2_pass(mm0, mm1, mm2, 5, esi)
		SSE2_key_schedule(esp+4, esi)
		SSE2_pass(mm2, mm0, mm1, 7, esp+4)
		SSE2_key_schedule(esp+4, esp+4)
		SSE2_pass(mm1, mm2, mm0, 9, esp+4)
#endif

		AS2(	pxor	mm0, [eax+0*8])
		AS2(	movq	[eax+0*8], mm0)
		AS2(	psubq	mm1, mm5)
		AS2(	movq	[eax+1*8], mm1)
		AS2(	paddq	mm2, [eax+2*8])
		AS2(	movq	[eax+2*8], mm2)

		AS_POP_IF86(sp)
		AS1(	emms)

#ifdef __GNUC__
		AS_POP_IF86(bx)
		ATT_PREFIX
			:
			: "a" (digest), "S" (X), "d" (table)
			: "%ecx", "%edi", "memory", "cc"
		);
#endif
	}
	else
#endif
	{
		word64 a = digest[0];
		word64 b = digest[1];
		word64 c = digest[2];
		word64 Y[8];

#define t1 (table)
#define t2 (table+256)
#define t3 (table+256*2)
#define t4 (table+256*3)

#define round(a,b,c,x,mul) \
	c ^= x; \
	a -= t1[GETBYTE(c,0)] ^ t2[GETBYTE(c,2)] ^ t3[GETBYTE(c,4)] ^ t4[GETBYTE(c,6)]; \
	b += t4[GETBYTE(c,1)] ^ t3[GETBYTE(c,3)] ^ t2[GETBYTE(c,5)] ^ t1[GETBYTE(c,7)]; \
	b *= mul

#define pass(a,b,c,mul,X) {\
	int i=0;\
	while (true)\
	{\
		round(a,b,c,X[i+0],mul); \
		round(b,c,a,X[i+1],mul); \
		if (i==6)\
			break;\
		round(c,a,b,X[i+2],mul); \
		i+=3;\
	}}

#define key_schedule(Y,X) \
	Y[0] = X[0] - (X[7]^W64LIT(0xA5A5A5A5A5A5A5A5)); \
	Y[1] = X[1] ^ Y[0]; \
	Y[2] = X[2] + Y[1]; \
	Y[3] = X[3] - (Y[2] ^ ((~Y[1])<<19)); \
	Y[4] = X[4] ^ Y[3]; \
	Y[5] = X[5] + Y[4]; \
	Y[6] = X[6] - (Y[5] ^ ((~Y[4])>>23)); \
	Y[7] = X[7] ^ Y[6]; \
	Y[0] += Y[7]; \
	Y[1] -= Y[0] ^ ((~Y[7])<<19); \
	Y[2] ^= Y[1]; \
	Y[3] += Y[2]; \
	Y[4] -= Y[3] ^ ((~Y[2])>>23); \
	Y[5] ^= Y[4]; \
	Y[6] += Y[5]; \
	Y[7] -= Y[6] ^ W64LIT(0x0123456789ABCDEF)

		pass(a,b,c,5,X);
		key_schedule(Y,X);
		pass(c,a,b,7,Y);
		key_schedule(Y,Y);
		pass(b,c,a,9,Y);

		digest[0] = a ^ digest[0];
		digest[1] = b - digest[1];
		digest[2] = c + digest[2];
	}
}

NAMESPACE_END