aes-x86_64.pl revision 193645
1183234Ssimon#!/usr/bin/env perl
2183234Ssimon#
3183234Ssimon# ====================================================================
4183234Ssimon# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
5183234Ssimon# project. Rights for redistribution and usage in source and binary
6183234Ssimon# forms are granted according to the OpenSSL license.
7183234Ssimon# ====================================================================
8183234Ssimon#
9183234Ssimon# Version 1.2.
10183234Ssimon#
11183234Ssimon# aes-*-cbc benchmarks are improved by >70% [compared to gcc 3.3.2 on
12183234Ssimon# Opteron 240 CPU] plus all the bells-n-whistles from 32-bit version
13183234Ssimon# [you'll notice a lot of resemblance], such as compressed S-boxes
14183234Ssimon# in little-endian byte order, prefetch of these tables in CBC mode,
15183234Ssimon# as well as avoiding L1 cache aliasing between stack frame and key
16183234Ssimon# schedule and already mentioned tables, compressed Td4...
17183234Ssimon#
18183234Ssimon# Performance in number of cycles per processed byte for 128-bit key:
19183234Ssimon#
20183234Ssimon#		ECB		CBC encrypt
21183234Ssimon# AMD64		13.7		13.0(*)
22183234Ssimon# EM64T		20.2		18.6(*)
23183234Ssimon#
24183234Ssimon# (*)	CBC benchmarks are better than ECB thanks to custom ABI used
25183234Ssimon#	by the private block encryption function.
26183234Ssimon
27183234Ssimon$verticalspin=1;	# unlike 32-bit version $verticalspin performs
28183234Ssimon			# ~15% better on both AMD and Intel cores
29183234Ssimon$output=shift;
30183234Ssimonopen STDOUT,"| $^X ../perlasm/x86_64-xlate.pl $output";
31183234Ssimon
32183234Ssimon$code=".text\n";
33183234Ssimon
34183234Ssimon$s0="%eax";
35183234Ssimon$s1="%ebx";
36183234Ssimon$s2="%ecx";
37183234Ssimon$s3="%edx";
38183234Ssimon$acc0="%esi";
39183234Ssimon$acc1="%edi";
40183234Ssimon$acc2="%ebp";
41183234Ssimon$inp="%r8";
42183234Ssimon$out="%r9";
43183234Ssimon$t0="%r10d";
44183234Ssimon$t1="%r11d";
45183234Ssimon$t2="%r12d";
46183234Ssimon$rnds="%r13d";
47183234Ssimon$sbox="%r14";
48183234Ssimon$key="%r15";
49183234Ssimon
50183234Ssimonsub hi() { my $r=shift;	$r =~ s/%[er]([a-d])x/%\1h/;	$r; }
51183234Ssimonsub lo() { my $r=shift;	$r =~ s/%[er]([a-d])x/%\1l/;
52183234Ssimon			$r =~ s/%[er]([sd]i)/%\1l/;
53183234Ssimon			$r =~ s/%(r[0-9]+)[d]?/%\1b/;	$r; }
54183234Ssimonsub _data_word()
55183234Ssimon{ my $i;
56183234Ssimon    while(defined($i=shift)) { $code.=sprintf".long\t0x%08x,0x%08x\n",$i,$i; }
57183234Ssimon}
58183234Ssimonsub data_word()
59183234Ssimon{ my $i;
60183234Ssimon  my $last=pop(@_);
61183234Ssimon    $code.=".long\t";
62183234Ssimon    while(defined($i=shift)) { $code.=sprintf"0x%08x,",$i; }
63183234Ssimon    $code.=sprintf"0x%08x\n",$last;
64183234Ssimon}
65183234Ssimon
66183234Ssimonsub data_byte()
67183234Ssimon{ my $i;
68183234Ssimon  my $last=pop(@_);
69183234Ssimon    $code.=".byte\t";
70183234Ssimon    while(defined($i=shift)) { $code.=sprintf"0x%02x,",$i&0xff; }
71183234Ssimon    $code.=sprintf"0x%02x\n",$last&0xff;
72183234Ssimon}
73183234Ssimon
74183234Ssimonsub encvert()
75183234Ssimon{ my $t3="%r8d";	# zaps $inp!
76183234Ssimon
77183234Ssimon$code.=<<___;
78183234Ssimon	# favor 3-way issue Opteron pipeline...
79183234Ssimon	movzb	`&lo("$s0")`,$acc0
80183234Ssimon	movzb	`&lo("$s1")`,$acc1
81183234Ssimon	movzb	`&lo("$s2")`,$acc2
82183234Ssimon	mov	0($sbox,$acc0,8),$t0
83183234Ssimon	mov	0($sbox,$acc1,8),$t1
84183234Ssimon	mov	0($sbox,$acc2,8),$t2
85183234Ssimon
86183234Ssimon	movzb	`&hi("$s1")`,$acc0
87183234Ssimon	movzb	`&hi("$s2")`,$acc1
88183234Ssimon	movzb	`&lo("$s3")`,$acc2
89183234Ssimon	xor	3($sbox,$acc0,8),$t0
90183234Ssimon	xor	3($sbox,$acc1,8),$t1
91183234Ssimon	mov	0($sbox,$acc2,8),$t3
92183234Ssimon
93183234Ssimon	movzb	`&hi("$s3")`,$acc0
94183234Ssimon	shr	\$16,$s2
95183234Ssimon	movzb	`&hi("$s0")`,$acc2
96183234Ssimon	xor	3($sbox,$acc0,8),$t2
97183234Ssimon	shr	\$16,$s3
98183234Ssimon	xor	3($sbox,$acc2,8),$t3
99183234Ssimon
100183234Ssimon	shr	\$16,$s1
101183234Ssimon	lea	16($key),$key
102183234Ssimon	shr	\$16,$s0
103183234Ssimon
104183234Ssimon	movzb	`&lo("$s2")`,$acc0
105183234Ssimon	movzb	`&lo("$s3")`,$acc1
106183234Ssimon	movzb	`&lo("$s0")`,$acc2
107183234Ssimon	xor	2($sbox,$acc0,8),$t0
108183234Ssimon	xor	2($sbox,$acc1,8),$t1
109183234Ssimon	xor	2($sbox,$acc2,8),$t2
110183234Ssimon
111183234Ssimon	movzb	`&hi("$s3")`,$acc0
112183234Ssimon	movzb	`&hi("$s0")`,$acc1
113183234Ssimon	movzb	`&lo("$s1")`,$acc2
114183234Ssimon	xor	1($sbox,$acc0,8),$t0
115183234Ssimon	xor	1($sbox,$acc1,8),$t1
116183234Ssimon	xor	2($sbox,$acc2,8),$t3
117183234Ssimon
118183234Ssimon	mov	12($key),$s3
119183234Ssimon	movzb	`&hi("$s1")`,$acc1
120183234Ssimon	movzb	`&hi("$s2")`,$acc2
121183234Ssimon	mov	0($key),$s0
122183234Ssimon	xor	1($sbox,$acc1,8),$t2
123183234Ssimon	xor	1($sbox,$acc2,8),$t3
124183234Ssimon
125183234Ssimon	mov	4($key),$s1
126183234Ssimon	mov	8($key),$s2
127183234Ssimon	xor	$t0,$s0
128183234Ssimon	xor	$t1,$s1
129183234Ssimon	xor	$t2,$s2
130183234Ssimon	xor	$t3,$s3
131183234Ssimon___
132183234Ssimon}
133183234Ssimon
134183234Ssimonsub enclastvert()
135183234Ssimon{ my $t3="%r8d";	# zaps $inp!
136183234Ssimon
137183234Ssimon$code.=<<___;
138183234Ssimon	movzb	`&lo("$s0")`,$acc0
139183234Ssimon	movzb	`&lo("$s1")`,$acc1
140183234Ssimon	movzb	`&lo("$s2")`,$acc2
141183234Ssimon	mov	2($sbox,$acc0,8),$t0
142183234Ssimon	mov	2($sbox,$acc1,8),$t1
143183234Ssimon	mov	2($sbox,$acc2,8),$t2
144183234Ssimon
145183234Ssimon	and	\$0x000000ff,$t0
146183234Ssimon	and	\$0x000000ff,$t1
147183234Ssimon	and	\$0x000000ff,$t2
148183234Ssimon
149183234Ssimon	movzb	`&lo("$s3")`,$acc0
150183234Ssimon	movzb	`&hi("$s1")`,$acc1
151183234Ssimon	movzb	`&hi("$s2")`,$acc2
152183234Ssimon	mov	2($sbox,$acc0,8),$t3
153183234Ssimon	mov	0($sbox,$acc1,8),$acc1	#$t0
154183234Ssimon	mov	0($sbox,$acc2,8),$acc2	#$t1
155183234Ssimon
156183234Ssimon	and	\$0x000000ff,$t3
157183234Ssimon	and	\$0x0000ff00,$acc1
158183234Ssimon	and	\$0x0000ff00,$acc2
159183234Ssimon
160183234Ssimon	xor	$acc1,$t0
161183234Ssimon	xor	$acc2,$t1
162183234Ssimon	shr	\$16,$s2
163183234Ssimon
164183234Ssimon	movzb	`&hi("$s3")`,$acc0
165183234Ssimon	movzb	`&hi("$s0")`,$acc1
166183234Ssimon	shr	\$16,$s3
167183234Ssimon	mov	0($sbox,$acc0,8),$acc0	#$t2
168183234Ssimon	mov	0($sbox,$acc1,8),$acc1	#$t3
169183234Ssimon
170183234Ssimon	and	\$0x0000ff00,$acc0
171183234Ssimon	and	\$0x0000ff00,$acc1
172183234Ssimon	shr	\$16,$s1
173183234Ssimon	xor	$acc0,$t2
174183234Ssimon	xor	$acc1,$t3
175183234Ssimon	shr	\$16,$s0
176183234Ssimon
177183234Ssimon	movzb	`&lo("$s2")`,$acc0
178183234Ssimon	movzb	`&lo("$s3")`,$acc1
179183234Ssimon	movzb	`&lo("$s0")`,$acc2
180183234Ssimon	mov	0($sbox,$acc0,8),$acc0	#$t0
181183234Ssimon	mov	0($sbox,$acc1,8),$acc1	#$t1
182183234Ssimon	mov	0($sbox,$acc2,8),$acc2	#$t2
183183234Ssimon
184183234Ssimon	and	\$0x00ff0000,$acc0
185183234Ssimon	and	\$0x00ff0000,$acc1
186183234Ssimon	and	\$0x00ff0000,$acc2
187183234Ssimon
188183234Ssimon	xor	$acc0,$t0
189183234Ssimon	xor	$acc1,$t1
190183234Ssimon	xor	$acc2,$t2
191183234Ssimon
192183234Ssimon	movzb	`&lo("$s1")`,$acc0
193183234Ssimon	movzb	`&hi("$s3")`,$acc1
194183234Ssimon	movzb	`&hi("$s0")`,$acc2
195183234Ssimon	mov	0($sbox,$acc0,8),$acc0	#$t3
196183234Ssimon	mov	2($sbox,$acc1,8),$acc1	#$t0
197183234Ssimon	mov	2($sbox,$acc2,8),$acc2	#$t1
198183234Ssimon
199183234Ssimon	and	\$0x00ff0000,$acc0
200183234Ssimon	and	\$0xff000000,$acc1
201183234Ssimon	and	\$0xff000000,$acc2
202183234Ssimon
203183234Ssimon	xor	$acc0,$t3
204183234Ssimon	xor	$acc1,$t0
205183234Ssimon	xor	$acc2,$t1
206183234Ssimon
207183234Ssimon	movzb	`&hi("$s1")`,$acc0
208183234Ssimon	movzb	`&hi("$s2")`,$acc1
209183234Ssimon	mov	16+12($key),$s3
210183234Ssimon	mov	2($sbox,$acc0,8),$acc0	#$t2
211183234Ssimon	mov	2($sbox,$acc1,8),$acc1	#$t3
212183234Ssimon	mov	16+0($key),$s0
213183234Ssimon
214183234Ssimon	and	\$0xff000000,$acc0
215183234Ssimon	and	\$0xff000000,$acc1
216183234Ssimon
217183234Ssimon	xor	$acc0,$t2
218183234Ssimon	xor	$acc1,$t3
219183234Ssimon
220183234Ssimon	mov	16+4($key),$s1
221183234Ssimon	mov	16+8($key),$s2
222183234Ssimon	xor	$t0,$s0
223183234Ssimon	xor	$t1,$s1
224183234Ssimon	xor	$t2,$s2
225183234Ssimon	xor	$t3,$s3
226183234Ssimon___
227183234Ssimon}
228183234Ssimon
229183234Ssimonsub encstep()
230183234Ssimon{ my ($i,@s) = @_;
231183234Ssimon  my $tmp0=$acc0;
232183234Ssimon  my $tmp1=$acc1;
233183234Ssimon  my $tmp2=$acc2;
234183234Ssimon  my $out=($t0,$t1,$t2,$s[0])[$i];
235183234Ssimon
236183234Ssimon	if ($i==3) {
237183234Ssimon		$tmp0=$s[1];
238183234Ssimon		$tmp1=$s[2];
239183234Ssimon		$tmp2=$s[3];
240183234Ssimon	}
241183234Ssimon	$code.="	movzb	".&lo($s[0]).",$out\n";
242183234Ssimon	$code.="	mov	$s[2],$tmp1\n"		if ($i!=3);
243183234Ssimon	$code.="	lea	16($key),$key\n"	if ($i==0);
244183234Ssimon
245183234Ssimon	$code.="	movzb	".&hi($s[1]).",$tmp0\n";
246183234Ssimon	$code.="	mov	0($sbox,$out,8),$out\n";
247183234Ssimon
248183234Ssimon	$code.="	shr	\$16,$tmp1\n";
249183234Ssimon	$code.="	mov	$s[3],$tmp2\n"		if ($i!=3);
250183234Ssimon	$code.="	xor	3($sbox,$tmp0,8),$out\n";
251183234Ssimon
252183234Ssimon	$code.="	movzb	".&lo($tmp1).",$tmp1\n";
253183234Ssimon	$code.="	shr	\$24,$tmp2\n";
254183234Ssimon	$code.="	xor	4*$i($key),$out\n";
255183234Ssimon
256183234Ssimon	$code.="	xor	2($sbox,$tmp1,8),$out\n";
257183234Ssimon	$code.="	xor	1($sbox,$tmp2,8),$out\n";
258183234Ssimon
259183234Ssimon	$code.="	mov	$t0,$s[1]\n"		if ($i==3);
260183234Ssimon	$code.="	mov	$t1,$s[2]\n"		if ($i==3);
261183234Ssimon	$code.="	mov	$t2,$s[3]\n"		if ($i==3);
262183234Ssimon	$code.="\n";
263183234Ssimon}
264183234Ssimon
265183234Ssimonsub enclast()
266183234Ssimon{ my ($i,@s)=@_;
267183234Ssimon  my $tmp0=$acc0;
268183234Ssimon  my $tmp1=$acc1;
269183234Ssimon  my $tmp2=$acc2;
270183234Ssimon  my $out=($t0,$t1,$t2,$s[0])[$i];
271183234Ssimon
272183234Ssimon	if ($i==3) {
273183234Ssimon		$tmp0=$s[1];
274183234Ssimon		$tmp1=$s[2];
275183234Ssimon		$tmp2=$s[3];
276183234Ssimon	}
277183234Ssimon	$code.="	movzb	".&lo($s[0]).",$out\n";
278183234Ssimon	$code.="	mov	$s[2],$tmp1\n"		if ($i!=3);
279183234Ssimon
280183234Ssimon	$code.="	mov	2($sbox,$out,8),$out\n";
281183234Ssimon	$code.="	shr	\$16,$tmp1\n";
282183234Ssimon	$code.="	mov	$s[3],$tmp2\n"		if ($i!=3);
283183234Ssimon
284183234Ssimon	$code.="	and	\$0x000000ff,$out\n";
285183234Ssimon	$code.="	movzb	".&hi($s[1]).",$tmp0\n";
286183234Ssimon	$code.="	movzb	".&lo($tmp1).",$tmp1\n";
287183234Ssimon	$code.="	shr	\$24,$tmp2\n";
288183234Ssimon
289183234Ssimon	$code.="	mov	0($sbox,$tmp0,8),$tmp0\n";
290183234Ssimon	$code.="	mov	0($sbox,$tmp1,8),$tmp1\n";
291183234Ssimon	$code.="	mov	2($sbox,$tmp2,8),$tmp2\n";
292183234Ssimon
293183234Ssimon	$code.="	and	\$0x0000ff00,$tmp0\n";
294183234Ssimon	$code.="	and	\$0x00ff0000,$tmp1\n";
295183234Ssimon	$code.="	and	\$0xff000000,$tmp2\n";
296183234Ssimon
297183234Ssimon	$code.="	xor	$tmp0,$out\n";
298183234Ssimon	$code.="	mov	$t0,$s[1]\n"		if ($i==3);
299183234Ssimon	$code.="	xor	$tmp1,$out\n";
300183234Ssimon	$code.="	mov	$t1,$s[2]\n"		if ($i==3);
301183234Ssimon	$code.="	xor	$tmp2,$out\n";
302183234Ssimon	$code.="	mov	$t2,$s[3]\n"		if ($i==3);
303183234Ssimon	$code.="\n";
304183234Ssimon}
305183234Ssimon
306183234Ssimon$code.=<<___;
307183234Ssimon.type	_x86_64_AES_encrypt,\@abi-omnipotent
308183234Ssimon.align	16
309183234Ssimon_x86_64_AES_encrypt:
310183234Ssimon	xor	0($key),$s0			# xor with key
311183234Ssimon	xor	4($key),$s1
312183234Ssimon	xor	8($key),$s2
313183234Ssimon	xor	12($key),$s3
314183234Ssimon
315183234Ssimon	mov	240($key),$rnds			# load key->rounds
316183234Ssimon	sub	\$1,$rnds
317183234Ssimon	jmp	.Lenc_loop
318183234Ssimon.align	16
319183234Ssimon.Lenc_loop:
320183234Ssimon___
321183234Ssimon	if ($verticalspin) { &encvert(); }
322183234Ssimon	else {	&encstep(0,$s0,$s1,$s2,$s3);
323183234Ssimon		&encstep(1,$s1,$s2,$s3,$s0);
324183234Ssimon		&encstep(2,$s2,$s3,$s0,$s1);
325183234Ssimon		&encstep(3,$s3,$s0,$s1,$s2);
326183234Ssimon	}
327183234Ssimon$code.=<<___;
328183234Ssimon	sub	\$1,$rnds
329183234Ssimon	jnz	.Lenc_loop
330183234Ssimon___
331183234Ssimon	if ($verticalspin) { &enclastvert(); }
332183234Ssimon	else {	&enclast(0,$s0,$s1,$s2,$s3);
333183234Ssimon		&enclast(1,$s1,$s2,$s3,$s0);
334183234Ssimon		&enclast(2,$s2,$s3,$s0,$s1);
335183234Ssimon		&enclast(3,$s3,$s0,$s1,$s2);
336183234Ssimon		$code.=<<___;
337183234Ssimon		xor	16+0($key),$s0		# xor with key
338183234Ssimon		xor	16+4($key),$s1
339183234Ssimon		xor	16+8($key),$s2
340183234Ssimon		xor	16+12($key),$s3
341183234Ssimon___
342183234Ssimon	}
343183234Ssimon$code.=<<___;
344183234Ssimon	.byte	0xf3,0xc3			# rep ret
345183234Ssimon.size	_x86_64_AES_encrypt,.-_x86_64_AES_encrypt
346183234Ssimon___
347183234Ssimon
348183234Ssimon# void AES_encrypt (const void *inp,void *out,const AES_KEY *key);
349183234Ssimon$code.=<<___;
350183234Ssimon.globl	AES_encrypt
351183234Ssimon.type	AES_encrypt,\@function,3
352183234Ssimon.align	16
353183234SsimonAES_encrypt:
354183234Ssimon	push	%rbx
355183234Ssimon	push	%rbp
356183234Ssimon	push	%r12
357183234Ssimon	push	%r13
358183234Ssimon	push	%r14
359183234Ssimon	push	%r15
360183234Ssimon
361183234Ssimon	mov	%rdx,$key
362183234Ssimon	mov	%rdi,$inp
363183234Ssimon	mov	%rsi,$out
364183234Ssimon
365183234Ssimon	.picmeup	$sbox
366183234Ssimon	lea	AES_Te-.($sbox),$sbox
367183234Ssimon
368183234Ssimon	mov	0($inp),$s0
369183234Ssimon	mov	4($inp),$s1
370183234Ssimon	mov	8($inp),$s2
371183234Ssimon	mov	12($inp),$s3
372183234Ssimon
373183234Ssimon	call	_x86_64_AES_encrypt
374183234Ssimon
375183234Ssimon	mov	$s0,0($out)
376183234Ssimon	mov	$s1,4($out)
377183234Ssimon	mov	$s2,8($out)
378183234Ssimon	mov	$s3,12($out)
379183234Ssimon
380183234Ssimon	pop	%r15
381183234Ssimon	pop	%r14
382183234Ssimon	pop	%r13
383183234Ssimon	pop	%r12
384183234Ssimon	pop	%rbp
385183234Ssimon	pop	%rbx
386183234Ssimon	ret
387183234Ssimon.size	AES_encrypt,.-AES_encrypt
388183234Ssimon___
389183234Ssimon
390183234Ssimon#------------------------------------------------------------------#
391183234Ssimon
392183234Ssimonsub decvert()
393183234Ssimon{ my $t3="%r8d";	# zaps $inp!
394183234Ssimon
395183234Ssimon$code.=<<___;
396183234Ssimon	# favor 3-way issue Opteron pipeline...
397183234Ssimon	movzb	`&lo("$s0")`,$acc0
398183234Ssimon	movzb	`&lo("$s1")`,$acc1
399183234Ssimon	movzb	`&lo("$s2")`,$acc2
400183234Ssimon	mov	0($sbox,$acc0,8),$t0
401183234Ssimon	mov	0($sbox,$acc1,8),$t1
402183234Ssimon	mov	0($sbox,$acc2,8),$t2
403183234Ssimon
404183234Ssimon	movzb	`&hi("$s3")`,$acc0
405183234Ssimon	movzb	`&hi("$s0")`,$acc1
406183234Ssimon	movzb	`&lo("$s3")`,$acc2
407183234Ssimon	xor	3($sbox,$acc0,8),$t0
408183234Ssimon	xor	3($sbox,$acc1,8),$t1
409183234Ssimon	mov	0($sbox,$acc2,8),$t3
410183234Ssimon
411183234Ssimon	movzb	`&hi("$s1")`,$acc0
412183234Ssimon	shr	\$16,$s0
413183234Ssimon	movzb	`&hi("$s2")`,$acc2
414183234Ssimon	xor	3($sbox,$acc0,8),$t2
415183234Ssimon	shr	\$16,$s3
416183234Ssimon	xor	3($sbox,$acc2,8),$t3
417183234Ssimon
418183234Ssimon	shr	\$16,$s1
419183234Ssimon	lea	16($key),$key
420183234Ssimon	shr	\$16,$s2
421183234Ssimon
422183234Ssimon	movzb	`&lo("$s2")`,$acc0
423183234Ssimon	movzb	`&lo("$s3")`,$acc1
424183234Ssimon	movzb	`&lo("$s0")`,$acc2
425183234Ssimon	xor	2($sbox,$acc0,8),$t0
426183234Ssimon	xor	2($sbox,$acc1,8),$t1
427183234Ssimon	xor	2($sbox,$acc2,8),$t2
428183234Ssimon
429183234Ssimon	movzb	`&hi("$s1")`,$acc0
430183234Ssimon	movzb	`&hi("$s2")`,$acc1
431183234Ssimon	movzb	`&lo("$s1")`,$acc2
432183234Ssimon	xor	1($sbox,$acc0,8),$t0
433183234Ssimon	xor	1($sbox,$acc1,8),$t1
434183234Ssimon	xor	2($sbox,$acc2,8),$t3
435183234Ssimon
436183234Ssimon	movzb	`&hi("$s3")`,$acc0
437183234Ssimon	mov	12($key),$s3
438183234Ssimon	movzb	`&hi("$s0")`,$acc2
439183234Ssimon	xor	1($sbox,$acc0,8),$t2
440183234Ssimon	mov	0($key),$s0
441183234Ssimon	xor	1($sbox,$acc2,8),$t3
442183234Ssimon
443183234Ssimon	xor	$t0,$s0
444183234Ssimon	mov	4($key),$s1
445183234Ssimon	mov	8($key),$s2
446183234Ssimon	xor	$t2,$s2
447183234Ssimon	xor	$t1,$s1
448183234Ssimon	xor	$t3,$s3
449183234Ssimon___
450183234Ssimon}
451183234Ssimon
452183234Ssimonsub declastvert()
453183234Ssimon{ my $t3="%r8d";	# zaps $inp!
454183234Ssimon
455183234Ssimon$code.=<<___;
456183234Ssimon	movzb	`&lo("$s0")`,$acc0
457183234Ssimon	movzb	`&lo("$s1")`,$acc1
458183234Ssimon	movzb	`&lo("$s2")`,$acc2
459183234Ssimon	movzb	2048($sbox,$acc0,1),$t0
460183234Ssimon	movzb	2048($sbox,$acc1,1),$t1
461183234Ssimon	movzb	2048($sbox,$acc2,1),$t2
462183234Ssimon
463183234Ssimon	movzb	`&lo("$s3")`,$acc0
464183234Ssimon	movzb	`&hi("$s3")`,$acc1
465183234Ssimon	movzb	`&hi("$s0")`,$acc2
466183234Ssimon	movzb	2048($sbox,$acc0,1),$t3
467183234Ssimon	movzb	2048($sbox,$acc1,1),$acc1	#$t0
468183234Ssimon	movzb	2048($sbox,$acc2,1),$acc2	#$t1
469183234Ssimon
470183234Ssimon	shl	\$8,$acc1
471183234Ssimon	shl	\$8,$acc2
472183234Ssimon
473183234Ssimon	xor	$acc1,$t0
474183234Ssimon	xor	$acc2,$t1
475183234Ssimon	shr	\$16,$s3
476183234Ssimon
477183234Ssimon	movzb	`&hi("$s1")`,$acc0
478183234Ssimon	movzb	`&hi("$s2")`,$acc1
479183234Ssimon	shr	\$16,$s0
480183234Ssimon	movzb	2048($sbox,$acc0,1),$acc0	#$t2
481183234Ssimon	movzb	2048($sbox,$acc1,1),$acc1	#$t3
482183234Ssimon
483183234Ssimon	shl	\$8,$acc0
484183234Ssimon	shl	\$8,$acc1
485183234Ssimon	shr	\$16,$s1
486183234Ssimon	xor	$acc0,$t2
487183234Ssimon	xor	$acc1,$t3
488183234Ssimon	shr	\$16,$s2
489183234Ssimon
490183234Ssimon	movzb	`&lo("$s2")`,$acc0
491183234Ssimon	movzb	`&lo("$s3")`,$acc1
492183234Ssimon	movzb	`&lo("$s0")`,$acc2
493183234Ssimon	movzb	2048($sbox,$acc0,1),$acc0	#$t0
494183234Ssimon	movzb	2048($sbox,$acc1,1),$acc1	#$t1
495183234Ssimon	movzb	2048($sbox,$acc2,1),$acc2	#$t2
496183234Ssimon
497183234Ssimon	shl	\$16,$acc0
498183234Ssimon	shl	\$16,$acc1
499183234Ssimon	shl	\$16,$acc2
500183234Ssimon
501183234Ssimon	xor	$acc0,$t0
502183234Ssimon	xor	$acc1,$t1
503183234Ssimon	xor	$acc2,$t2
504183234Ssimon
505183234Ssimon	movzb	`&lo("$s1")`,$acc0
506183234Ssimon	movzb	`&hi("$s1")`,$acc1
507183234Ssimon	movzb	`&hi("$s2")`,$acc2
508183234Ssimon	movzb	2048($sbox,$acc0,1),$acc0	#$t3
509183234Ssimon	movzb	2048($sbox,$acc1,1),$acc1	#$t0
510183234Ssimon	movzb	2048($sbox,$acc2,1),$acc2	#$t1
511183234Ssimon
512183234Ssimon	shl	\$16,$acc0
513183234Ssimon	shl	\$24,$acc1
514183234Ssimon	shl	\$24,$acc2
515183234Ssimon
516183234Ssimon	xor	$acc0,$t3
517183234Ssimon	xor	$acc1,$t0
518183234Ssimon	xor	$acc2,$t1
519183234Ssimon
520183234Ssimon	movzb	`&hi("$s3")`,$acc0
521183234Ssimon	movzb	`&hi("$s0")`,$acc1
522183234Ssimon	mov	16+12($key),$s3
523183234Ssimon	movzb	2048($sbox,$acc0,1),$acc0	#$t2
524183234Ssimon	movzb	2048($sbox,$acc1,1),$acc1	#$t3
525183234Ssimon	mov	16+0($key),$s0
526183234Ssimon
527183234Ssimon	shl	\$24,$acc0
528183234Ssimon	shl	\$24,$acc1
529183234Ssimon
530183234Ssimon	xor	$acc0,$t2
531183234Ssimon	xor	$acc1,$t3
532183234Ssimon
533183234Ssimon	mov	16+4($key),$s1
534183234Ssimon	mov	16+8($key),$s2
535183234Ssimon	xor	$t0,$s0
536183234Ssimon	xor	$t1,$s1
537183234Ssimon	xor	$t2,$s2
538183234Ssimon	xor	$t3,$s3
539183234Ssimon___
540183234Ssimon}
541183234Ssimon
542183234Ssimonsub decstep()
543183234Ssimon{ my ($i,@s) = @_;
544183234Ssimon  my $tmp0=$acc0;
545183234Ssimon  my $tmp1=$acc1;
546183234Ssimon  my $tmp2=$acc2;
547183234Ssimon  my $out=($t0,$t1,$t2,$s[0])[$i];
548183234Ssimon
549183234Ssimon	$code.="	mov	$s[0],$out\n"		if ($i!=3);
550183234Ssimon			$tmp1=$s[2]			if ($i==3);
551183234Ssimon	$code.="	mov	$s[2],$tmp1\n"		if ($i!=3);
552183234Ssimon	$code.="	and	\$0xFF,$out\n";
553183234Ssimon
554183234Ssimon	$code.="	mov	0($sbox,$out,8),$out\n";
555183234Ssimon	$code.="	shr	\$16,$tmp1\n";
556183234Ssimon			$tmp2=$s[3]			if ($i==3);
557183234Ssimon	$code.="	mov	$s[3],$tmp2\n"		if ($i!=3);
558183234Ssimon
559183234Ssimon			$tmp0=$s[1]			if ($i==3);
560183234Ssimon	$code.="	movzb	".&hi($s[1]).",$tmp0\n";
561183234Ssimon	$code.="	and	\$0xFF,$tmp1\n";
562183234Ssimon	$code.="	shr	\$24,$tmp2\n";
563183234Ssimon
564183234Ssimon	$code.="	xor	3($sbox,$tmp0,8),$out\n";
565183234Ssimon	$code.="	xor	2($sbox,$tmp1,8),$out\n";
566183234Ssimon	$code.="	xor	1($sbox,$tmp2,8),$out\n";
567183234Ssimon
568183234Ssimon	$code.="	mov	$t2,$s[1]\n"		if ($i==3);
569183234Ssimon	$code.="	mov	$t1,$s[2]\n"		if ($i==3);
570183234Ssimon	$code.="	mov	$t0,$s[3]\n"		if ($i==3);
571183234Ssimon	$code.="\n";
572183234Ssimon}
573183234Ssimon
574183234Ssimonsub declast()
575183234Ssimon{ my ($i,@s)=@_;
576183234Ssimon  my $tmp0=$acc0;
577183234Ssimon  my $tmp1=$acc1;
578183234Ssimon  my $tmp2=$acc2;
579183234Ssimon  my $out=($t0,$t1,$t2,$s[0])[$i];
580183234Ssimon
581183234Ssimon	$code.="	mov	$s[0],$out\n"		if ($i!=3);
582183234Ssimon			$tmp1=$s[2]			if ($i==3);
583183234Ssimon	$code.="	mov	$s[2],$tmp1\n"		if ($i!=3);
584183234Ssimon	$code.="	and	\$0xFF,$out\n";
585183234Ssimon
586183234Ssimon	$code.="	movzb	2048($sbox,$out,1),$out\n";
587183234Ssimon	$code.="	shr	\$16,$tmp1\n";
588183234Ssimon			$tmp2=$s[3]			if ($i==3);
589183234Ssimon	$code.="	mov	$s[3],$tmp2\n"		if ($i!=3);
590183234Ssimon
591183234Ssimon			$tmp0=$s[1]			if ($i==3);
592183234Ssimon	$code.="	movzb	".&hi($s[1]).",$tmp0\n";
593183234Ssimon	$code.="	and	\$0xFF,$tmp1\n";
594183234Ssimon	$code.="	shr	\$24,$tmp2\n";
595183234Ssimon
596183234Ssimon	$code.="	movzb	2048($sbox,$tmp0,1),$tmp0\n";
597183234Ssimon	$code.="	movzb	2048($sbox,$tmp1,1),$tmp1\n";
598183234Ssimon	$code.="	movzb	2048($sbox,$tmp2,1),$tmp2\n";
599183234Ssimon
600183234Ssimon	$code.="	shl	\$8,$tmp0\n";
601183234Ssimon	$code.="	shl	\$16,$tmp1\n";
602183234Ssimon	$code.="	shl	\$24,$tmp2\n";
603183234Ssimon
604183234Ssimon	$code.="	xor	$tmp0,$out\n";
605183234Ssimon	$code.="	mov	$t2,$s[1]\n"		if ($i==3);
606183234Ssimon	$code.="	xor	$tmp1,$out\n";
607183234Ssimon	$code.="	mov	$t1,$s[2]\n"		if ($i==3);
608183234Ssimon	$code.="	xor	$tmp2,$out\n";
609183234Ssimon	$code.="	mov	$t0,$s[3]\n"		if ($i==3);
610183234Ssimon	$code.="\n";
611183234Ssimon}
612183234Ssimon
613183234Ssimon$code.=<<___;
614183234Ssimon.type	_x86_64_AES_decrypt,\@abi-omnipotent
615183234Ssimon.align	16
616183234Ssimon_x86_64_AES_decrypt:
617183234Ssimon	xor	0($key),$s0			# xor with key
618183234Ssimon	xor	4($key),$s1
619183234Ssimon	xor	8($key),$s2
620183234Ssimon	xor	12($key),$s3
621183234Ssimon
622183234Ssimon	mov	240($key),$rnds			# load key->rounds
623183234Ssimon	sub	\$1,$rnds
624183234Ssimon	jmp	.Ldec_loop
625183234Ssimon.align	16
626183234Ssimon.Ldec_loop:
627183234Ssimon___
628183234Ssimon	if ($verticalspin) { &decvert(); }
629183234Ssimon	else {	&decstep(0,$s0,$s3,$s2,$s1);
630183234Ssimon		&decstep(1,$s1,$s0,$s3,$s2);
631183234Ssimon		&decstep(2,$s2,$s1,$s0,$s3);
632183234Ssimon		&decstep(3,$s3,$s2,$s1,$s0);
633183234Ssimon		$code.=<<___;
634183234Ssimon		lea	16($key),$key
635183234Ssimon		xor	0($key),$s0			# xor with key
636183234Ssimon		xor	4($key),$s1
637183234Ssimon		xor	8($key),$s2
638183234Ssimon		xor	12($key),$s3
639183234Ssimon___
640183234Ssimon	}
641183234Ssimon$code.=<<___;
642183234Ssimon	sub	\$1,$rnds
643183234Ssimon	jnz	.Ldec_loop
644183234Ssimon___
645183234Ssimon	if ($verticalspin) { &declastvert(); }
646183234Ssimon	else {	&declast(0,$s0,$s3,$s2,$s1);
647183234Ssimon		&declast(1,$s1,$s0,$s3,$s2);
648183234Ssimon		&declast(2,$s2,$s1,$s0,$s3);
649183234Ssimon		&declast(3,$s3,$s2,$s1,$s0);
650183234Ssimon		$code.=<<___;
651183234Ssimon		xor	16+0($key),$s0			# xor with key
652183234Ssimon		xor	16+4($key),$s1
653183234Ssimon		xor	16+8($key),$s2
654183234Ssimon		xor	16+12($key),$s3
655183234Ssimon___
656183234Ssimon	}
657183234Ssimon$code.=<<___;
658183234Ssimon	.byte	0xf3,0xc3			# rep ret
659183234Ssimon.size	_x86_64_AES_decrypt,.-_x86_64_AES_decrypt
660183234Ssimon___
661183234Ssimon
662183234Ssimon# void AES_decrypt (const void *inp,void *out,const AES_KEY *key);
663183234Ssimon$code.=<<___;
664183234Ssimon.globl	AES_decrypt
665183234Ssimon.type	AES_decrypt,\@function,3
666183234Ssimon.align	16
667183234SsimonAES_decrypt:
668183234Ssimon	push	%rbx
669183234Ssimon	push	%rbp
670183234Ssimon	push	%r12
671183234Ssimon	push	%r13
672183234Ssimon	push	%r14
673183234Ssimon	push	%r15
674183234Ssimon
675183234Ssimon	mov	%rdx,$key
676183234Ssimon	mov	%rdi,$inp
677183234Ssimon	mov	%rsi,$out
678183234Ssimon
679183234Ssimon	.picmeup	$sbox
680183234Ssimon	lea	AES_Td-.($sbox),$sbox
681183234Ssimon
682183234Ssimon	# prefetch Td4
683183234Ssimon	lea	2048+128($sbox),$sbox;
684183234Ssimon	mov	0-128($sbox),$s0
685183234Ssimon	mov	32-128($sbox),$s1
686183234Ssimon	mov	64-128($sbox),$s2
687183234Ssimon	mov	96-128($sbox),$s3
688183234Ssimon	mov	128-128($sbox),$s0
689183234Ssimon	mov	160-128($sbox),$s1
690183234Ssimon	mov	192-128($sbox),$s2
691183234Ssimon	mov	224-128($sbox),$s3
692183234Ssimon	lea	-2048-128($sbox),$sbox;
693183234Ssimon
694183234Ssimon	mov	0($inp),$s0
695183234Ssimon	mov	4($inp),$s1
696183234Ssimon	mov	8($inp),$s2
697183234Ssimon	mov	12($inp),$s3
698183234Ssimon
699183234Ssimon	call	_x86_64_AES_decrypt
700183234Ssimon
701183234Ssimon	mov	$s0,0($out)
702183234Ssimon	mov	$s1,4($out)
703183234Ssimon	mov	$s2,8($out)
704183234Ssimon	mov	$s3,12($out)
705183234Ssimon
706183234Ssimon	pop	%r15
707183234Ssimon	pop	%r14
708183234Ssimon	pop	%r13
709183234Ssimon	pop	%r12
710183234Ssimon	pop	%rbp
711183234Ssimon	pop	%rbx
712183234Ssimon	ret
713183234Ssimon.size	AES_decrypt,.-AES_decrypt
714183234Ssimon___
715183234Ssimon#------------------------------------------------------------------#
716183234Ssimon
717183234Ssimonsub enckey()
718183234Ssimon{
719183234Ssimon$code.=<<___;
720183234Ssimon	movz	%dl,%esi		# rk[i]>>0
721183234Ssimon	mov	2(%rbp,%rsi,8),%ebx
722183234Ssimon	movz	%dh,%esi		# rk[i]>>8
723183234Ssimon	and	\$0xFF000000,%ebx
724183234Ssimon	xor	%ebx,%eax
725183234Ssimon
726183234Ssimon	mov	2(%rbp,%rsi,8),%ebx
727183234Ssimon	shr	\$16,%edx
728183234Ssimon	and	\$0x000000FF,%ebx
729183234Ssimon	movz	%dl,%esi		# rk[i]>>16
730183234Ssimon	xor	%ebx,%eax
731183234Ssimon
732183234Ssimon	mov	0(%rbp,%rsi,8),%ebx
733183234Ssimon	movz	%dh,%esi		# rk[i]>>24
734183234Ssimon	and	\$0x0000FF00,%ebx
735183234Ssimon	xor	%ebx,%eax
736183234Ssimon
737183234Ssimon	mov	0(%rbp,%rsi,8),%ebx
738183234Ssimon	and	\$0x00FF0000,%ebx
739183234Ssimon	xor	%ebx,%eax
740183234Ssimon
741183234Ssimon	xor	2048(%rbp,%rcx,4),%eax		# rcon
742183234Ssimon___
743183234Ssimon}
744183234Ssimon
745183234Ssimon# int AES_set_encrypt_key(const unsigned char *userKey, const int bits,
746183234Ssimon#                        AES_KEY *key)
747183234Ssimon$code.=<<___;
748183234Ssimon.globl	AES_set_encrypt_key
749183234Ssimon.type	AES_set_encrypt_key,\@function,3
750183234Ssimon.align	16
751183234SsimonAES_set_encrypt_key:
752183234Ssimon	push	%rbx
753183234Ssimon	push	%rbp
754183234Ssimon
755183234Ssimon	mov	%esi,%ecx			# %ecx=bits
756183234Ssimon	mov	%rdi,%rsi			# %rsi=userKey
757183234Ssimon	mov	%rdx,%rdi			# %rdi=key
758183234Ssimon
759183234Ssimon	test	\$-1,%rsi
760183234Ssimon	jz	.Lbadpointer
761183234Ssimon	test	\$-1,%rdi
762183234Ssimon	jz	.Lbadpointer
763183234Ssimon
764183234Ssimon	.picmeup %rbp
765183234Ssimon	lea	AES_Te-.(%rbp),%rbp
766183234Ssimon
767183234Ssimon	cmp	\$128,%ecx
768183234Ssimon	je	.L10rounds
769183234Ssimon	cmp	\$192,%ecx
770183234Ssimon	je	.L12rounds
771183234Ssimon	cmp	\$256,%ecx
772183234Ssimon	je	.L14rounds
773183234Ssimon	mov	\$-2,%rax			# invalid number of bits
774183234Ssimon	jmp	.Lexit
775183234Ssimon
776183234Ssimon.L10rounds:
777183234Ssimon	mov	0(%rsi),%eax			# copy first 4 dwords
778183234Ssimon	mov	4(%rsi),%ebx
779183234Ssimon	mov	8(%rsi),%ecx
780183234Ssimon	mov	12(%rsi),%edx
781183234Ssimon	mov	%eax,0(%rdi)
782183234Ssimon	mov	%ebx,4(%rdi)
783183234Ssimon	mov	%ecx,8(%rdi)
784183234Ssimon	mov	%edx,12(%rdi)
785183234Ssimon
786183234Ssimon	xor	%ecx,%ecx
787183234Ssimon	jmp	.L10shortcut
788183234Ssimon.align	4
789183234Ssimon.L10loop:
790183234Ssimon		mov	0(%rdi),%eax			# rk[0]
791183234Ssimon		mov	12(%rdi),%edx			# rk[3]
792183234Ssimon.L10shortcut:
793183234Ssimon___
794183234Ssimon		&enckey	();
795183234Ssimon$code.=<<___;
796183234Ssimon		mov	%eax,16(%rdi)			# rk[4]
797183234Ssimon		xor	4(%rdi),%eax
798183234Ssimon		mov	%eax,20(%rdi)			# rk[5]
799183234Ssimon		xor	8(%rdi),%eax
800183234Ssimon		mov	%eax,24(%rdi)			# rk[6]
801183234Ssimon		xor	12(%rdi),%eax
802183234Ssimon		mov	%eax,28(%rdi)			# rk[7]
803183234Ssimon		add	\$1,%ecx
804183234Ssimon		lea	16(%rdi),%rdi
805183234Ssimon		cmp	\$10,%ecx
806183234Ssimon	jl	.L10loop
807183234Ssimon
808183234Ssimon	movl	\$10,80(%rdi)			# setup number of rounds
809183234Ssimon	xor	%rax,%rax
810183234Ssimon	jmp	.Lexit
811183234Ssimon
812183234Ssimon.L12rounds:
813183234Ssimon	mov	0(%rsi),%eax			# copy first 6 dwords
814183234Ssimon	mov	4(%rsi),%ebx
815183234Ssimon	mov	8(%rsi),%ecx
816183234Ssimon	mov	12(%rsi),%edx
817183234Ssimon	mov	%eax,0(%rdi)
818183234Ssimon	mov	%ebx,4(%rdi)
819183234Ssimon	mov	%ecx,8(%rdi)
820183234Ssimon	mov	%edx,12(%rdi)
821183234Ssimon	mov	16(%rsi),%ecx
822183234Ssimon	mov	20(%rsi),%edx
823183234Ssimon	mov	%ecx,16(%rdi)
824183234Ssimon	mov	%edx,20(%rdi)
825183234Ssimon
826183234Ssimon	xor	%ecx,%ecx
827183234Ssimon	jmp	.L12shortcut
828183234Ssimon.align	4
829183234Ssimon.L12loop:
830183234Ssimon		mov	0(%rdi),%eax			# rk[0]
831183234Ssimon		mov	20(%rdi),%edx			# rk[5]
832183234Ssimon.L12shortcut:
833183234Ssimon___
834183234Ssimon		&enckey	();
835183234Ssimon$code.=<<___;
836183234Ssimon		mov	%eax,24(%rdi)			# rk[6]
837183234Ssimon		xor	4(%rdi),%eax
838183234Ssimon		mov	%eax,28(%rdi)			# rk[7]
839183234Ssimon		xor	8(%rdi),%eax
840183234Ssimon		mov	%eax,32(%rdi)			# rk[8]
841183234Ssimon		xor	12(%rdi),%eax
842183234Ssimon		mov	%eax,36(%rdi)			# rk[9]
843183234Ssimon
844183234Ssimon		cmp	\$7,%ecx
845183234Ssimon		je	.L12break
846183234Ssimon		add	\$1,%ecx
847183234Ssimon
848183234Ssimon		xor	16(%rdi),%eax
849183234Ssimon		mov	%eax,40(%rdi)			# rk[10]
850183234Ssimon		xor	20(%rdi),%eax
851183234Ssimon		mov	%eax,44(%rdi)			# rk[11]
852183234Ssimon
853183234Ssimon		lea	24(%rdi),%rdi
854183234Ssimon	jmp	.L12loop
855183234Ssimon.L12break:
856183234Ssimon	movl	\$12,72(%rdi)		# setup number of rounds
857183234Ssimon	xor	%rax,%rax
858183234Ssimon	jmp	.Lexit
859183234Ssimon
860183234Ssimon.L14rounds:
861183234Ssimon	mov	0(%rsi),%eax			# copy first 8 dwords
862183234Ssimon	mov	4(%rsi),%ebx
863183234Ssimon	mov	8(%rsi),%ecx
864183234Ssimon	mov	12(%rsi),%edx
865183234Ssimon	mov	%eax,0(%rdi)
866183234Ssimon	mov	%ebx,4(%rdi)
867183234Ssimon	mov	%ecx,8(%rdi)
868183234Ssimon	mov	%edx,12(%rdi)
869183234Ssimon	mov	16(%rsi),%eax
870183234Ssimon	mov	20(%rsi),%ebx
871183234Ssimon	mov	24(%rsi),%ecx
872183234Ssimon	mov	28(%rsi),%edx
873183234Ssimon	mov	%eax,16(%rdi)
874183234Ssimon	mov	%ebx,20(%rdi)
875183234Ssimon	mov	%ecx,24(%rdi)
876183234Ssimon	mov	%edx,28(%rdi)
877183234Ssimon
878183234Ssimon	xor	%ecx,%ecx
879183234Ssimon	jmp	.L14shortcut
880183234Ssimon.align	4
881183234Ssimon.L14loop:
882183234Ssimon		mov	28(%rdi),%edx			# rk[4]
883183234Ssimon.L14shortcut:
884183234Ssimon		mov	0(%rdi),%eax			# rk[0]
885183234Ssimon___
886183234Ssimon		&enckey	();
887183234Ssimon$code.=<<___;
888183234Ssimon		mov	%eax,32(%rdi)			# rk[8]
889183234Ssimon		xor	4(%rdi),%eax
890183234Ssimon		mov	%eax,36(%rdi)			# rk[9]
891183234Ssimon		xor	8(%rdi),%eax
892183234Ssimon		mov	%eax,40(%rdi)			# rk[10]
893183234Ssimon		xor	12(%rdi),%eax
894183234Ssimon		mov	%eax,44(%rdi)			# rk[11]
895183234Ssimon
896183234Ssimon		cmp	\$6,%ecx
897183234Ssimon		je	.L14break
898183234Ssimon		add	\$1,%ecx
899183234Ssimon
900183234Ssimon		mov	%eax,%edx
901183234Ssimon		mov	16(%rdi),%eax			# rk[4]
902183234Ssimon		movz	%dl,%esi			# rk[11]>>0
903183234Ssimon		mov	2(%rbp,%rsi,8),%ebx
904183234Ssimon		movz	%dh,%esi			# rk[11]>>8
905183234Ssimon		and	\$0x000000FF,%ebx
906183234Ssimon		xor	%ebx,%eax
907183234Ssimon
908183234Ssimon		mov	0(%rbp,%rsi,8),%ebx
909183234Ssimon		shr	\$16,%edx
910183234Ssimon		and	\$0x0000FF00,%ebx
911183234Ssimon		movz	%dl,%esi			# rk[11]>>16
912183234Ssimon		xor	%ebx,%eax
913183234Ssimon
914183234Ssimon		mov	0(%rbp,%rsi,8),%ebx
915183234Ssimon		movz	%dh,%esi			# rk[11]>>24
916183234Ssimon		and	\$0x00FF0000,%ebx
917183234Ssimon		xor	%ebx,%eax
918183234Ssimon
919183234Ssimon		mov	2(%rbp,%rsi,8),%ebx
920183234Ssimon		and	\$0xFF000000,%ebx
921183234Ssimon		xor	%ebx,%eax
922183234Ssimon
923183234Ssimon		mov	%eax,48(%rdi)			# rk[12]
924183234Ssimon		xor	20(%rdi),%eax
925183234Ssimon		mov	%eax,52(%rdi)			# rk[13]
926183234Ssimon		xor	24(%rdi),%eax
927183234Ssimon		mov	%eax,56(%rdi)			# rk[14]
928183234Ssimon		xor	28(%rdi),%eax
929183234Ssimon		mov	%eax,60(%rdi)			# rk[15]
930183234Ssimon
931183234Ssimon		lea	32(%rdi),%rdi
932183234Ssimon	jmp	.L14loop
933183234Ssimon.L14break:
934183234Ssimon	movl	\$14,48(%rdi)		# setup number of rounds
935183234Ssimon	xor	%rax,%rax
936183234Ssimon	jmp	.Lexit
937183234Ssimon
938183234Ssimon.Lbadpointer:
939183234Ssimon	mov	\$-1,%rax
940183234Ssimon.Lexit:
941183234Ssimon	pop	%rbp
942183234Ssimon	pop	%rbx
943183234Ssimon	ret
944183234Ssimon.size	AES_set_encrypt_key,.-AES_set_encrypt_key
945183234Ssimon___
946183234Ssimon
947183234Ssimonsub deckey()
948183234Ssimon{ my ($i,$ptr,$te,$td) = @_;
949183234Ssimon$code.=<<___;
950183234Ssimon	mov	$i($ptr),%eax
951183234Ssimon	mov	%eax,%edx
952183234Ssimon	movz	%ah,%ebx
953183234Ssimon	shr	\$16,%edx
954183234Ssimon	and	\$0xFF,%eax
955183234Ssimon	movzb	2($te,%rax,8),%rax
956183234Ssimon	movzb	2($te,%rbx,8),%rbx
957183234Ssimon	mov	0($td,%rax,8),%eax
958183234Ssimon	xor	3($td,%rbx,8),%eax
959183234Ssimon	movzb	%dh,%ebx
960183234Ssimon	and	\$0xFF,%edx
961183234Ssimon	movzb	2($te,%rdx,8),%rdx
962183234Ssimon	movzb	2($te,%rbx,8),%rbx
963183234Ssimon	xor	2($td,%rdx,8),%eax
964183234Ssimon	xor	1($td,%rbx,8),%eax
965183234Ssimon	mov	%eax,$i($ptr)
966183234Ssimon___
967183234Ssimon}
968183234Ssimon
969183234Ssimon# int AES_set_decrypt_key(const unsigned char *userKey, const int bits,
970183234Ssimon#                        AES_KEY *key)
971183234Ssimon$code.=<<___;
972183234Ssimon.globl	AES_set_decrypt_key
973183234Ssimon.type	AES_set_decrypt_key,\@function,3
974183234Ssimon.align	16
975183234SsimonAES_set_decrypt_key:
976183234Ssimon	push	%rdx
977183234Ssimon	call	AES_set_encrypt_key
978183234Ssimon	cmp	\$0,%eax
979183234Ssimon	je	.Lproceed
980183234Ssimon	lea	24(%rsp),%rsp
981183234Ssimon	ret
982183234Ssimon.Lproceed:
983183234Ssimon	mov	(%rsp),%r8		# restore key schedule
984183234Ssimon	mov	%rbx,(%rsp)
985183234Ssimon
986183234Ssimon	mov	240(%r8),%ecx		# pull number of rounds
987183234Ssimon	xor	%rdi,%rdi
988183234Ssimon	lea	(%rdi,%rcx,4),%rcx
989183234Ssimon	mov	%r8,%rsi
990183234Ssimon	lea	(%r8,%rcx,4),%rdi	# pointer to last chunk
991183234Ssimon.align	4
992183234Ssimon.Linvert:
993183234Ssimon		mov	0(%rsi),%rax
994183234Ssimon		mov	8(%rsi),%rbx
995183234Ssimon		mov	0(%rdi),%rcx
996183234Ssimon		mov	8(%rdi),%rdx
997183234Ssimon		mov	%rax,0(%rdi)
998183234Ssimon		mov	%rbx,8(%rdi)
999183234Ssimon		mov	%rcx,0(%rsi)
1000183234Ssimon		mov	%rdx,8(%rsi)
1001183234Ssimon		lea	16(%rsi),%rsi
1002183234Ssimon		lea	-16(%rdi),%rdi
1003183234Ssimon		cmp	%rsi,%rdi
1004183234Ssimon	jne	.Linvert
1005183234Ssimon
1006183234Ssimon	.picmeup %r9
1007183234Ssimon	lea	AES_Td-.(%r9),%rdi
1008183234Ssimon	lea	AES_Te-AES_Td(%rdi),%r9
1009183234Ssimon
1010183234Ssimon	mov	%r8,%rsi
1011183234Ssimon	mov	240(%r8),%ecx		# pull number of rounds
1012183234Ssimon	sub	\$1,%ecx
1013183234Ssimon.align	4
1014183234Ssimon.Lpermute:
1015183234Ssimon		lea	16(%rsi),%rsi
1016183234Ssimon___
1017183234Ssimon		&deckey	(0,"%rsi","%r9","%rdi");
1018183234Ssimon		&deckey	(4,"%rsi","%r9","%rdi");
1019183234Ssimon		&deckey	(8,"%rsi","%r9","%rdi");
1020183234Ssimon		&deckey	(12,"%rsi","%r9","%rdi");
1021183234Ssimon$code.=<<___;
1022183234Ssimon		sub	\$1,%ecx
1023183234Ssimon	jnz	.Lpermute
1024183234Ssimon
1025183234Ssimon	xor	%rax,%rax
1026183234Ssimon	pop	%rbx
1027183234Ssimon	ret
1028183234Ssimon.size	AES_set_decrypt_key,.-AES_set_decrypt_key
1029183234Ssimon___
1030183234Ssimon
1031183234Ssimon# void AES_cbc_encrypt (const void char *inp, unsigned char *out,
1032183234Ssimon#			size_t length, const AES_KEY *key,
1033183234Ssimon#			unsigned char *ivp,const int enc);
1034183234Ssimon{
1035183234Ssimon# stack frame layout
1036183234Ssimon# -8(%rsp)		return address
1037183234Ssimonmy $_rsp="0(%rsp)";		# saved %rsp
1038183234Ssimonmy $_len="8(%rsp)";		# copy of 3rd parameter, length
1039183234Ssimonmy $_key="16(%rsp)";		# copy of 4th parameter, key
1040183234Ssimonmy $_ivp="24(%rsp)";		# copy of 5th parameter, ivp
1041183234Ssimonmy $keyp="32(%rsp)";		# one to pass as $key
1042183234Ssimonmy $ivec="40(%rsp)";		# ivec[16]
1043183234Ssimonmy $aes_key="56(%rsp)";		# copy of aes_key
1044183234Ssimonmy $mark="56+240(%rsp)";	# copy of aes_key->rounds
1045183234Ssimon
1046183234Ssimon$code.=<<___;
1047183234Ssimon.globl	AES_cbc_encrypt
1048183234Ssimon.type	AES_cbc_encrypt,\@function,6
1049183234Ssimon.align	16
1050183234SsimonAES_cbc_encrypt:
1051183234Ssimon	cmp	\$0,%rdx	# check length
1052183234Ssimon	je	.Lcbc_just_ret
1053183234Ssimon	push	%rbx
1054183234Ssimon	push	%rbp
1055183234Ssimon	push	%r12
1056183234Ssimon	push	%r13
1057183234Ssimon	push	%r14
1058183234Ssimon	push	%r15
1059183234Ssimon	pushfq
1060183234Ssimon	cld
1061183234Ssimon	mov	%r9d,%r9d	# clear upper half of enc
1062183234Ssimon
1063183234Ssimon	.picmeup $sbox
1064183234Ssimon.Lcbc_pic_point:
1065183234Ssimon
1066183234Ssimon	cmp	\$0,%r9
1067183234Ssimon	je	.LDECRYPT
1068183234Ssimon
1069183234Ssimon	lea	AES_Te-.Lcbc_pic_point($sbox),$sbox
1070183234Ssimon
1071183234Ssimon	# allocate aligned stack frame...
1072183234Ssimon	lea	-64-248(%rsp),$key
1073183234Ssimon	and	\$-64,$key
1074183234Ssimon
1075183234Ssimon	# ... and make it doesn't alias with AES_Te modulo 4096
1076183234Ssimon	mov	$sbox,%r10
1077183234Ssimon	lea	2048($sbox),%r11
1078183234Ssimon	mov	$key,%r12
1079183234Ssimon	and	\$0xFFF,%r10	# s = $sbox&0xfff
1080183234Ssimon	and	\$0xFFF,%r11	# e = ($sbox+2048)&0xfff
1081183234Ssimon	and	\$0xFFF,%r12	# p = %rsp&0xfff
1082183234Ssimon
1083183234Ssimon	cmp	%r11,%r12	# if (p=>e) %rsp =- (p-e);
1084183234Ssimon	jb	.Lcbc_te_break_out
1085183234Ssimon	sub	%r11,%r12
1086183234Ssimon	sub	%r12,$key
1087183234Ssimon	jmp	.Lcbc_te_ok
1088183234Ssimon.Lcbc_te_break_out:		# else %rsp -= (p-s)&0xfff + framesz
1089183234Ssimon	sub	%r10,%r12
1090183234Ssimon	and	\$0xFFF,%r12
1091183234Ssimon	add	\$320,%r12
1092183234Ssimon	sub	%r12,$key
1093183234Ssimon.align	4
1094183234Ssimon.Lcbc_te_ok:
1095183234Ssimon
1096183234Ssimon	xchg	%rsp,$key
1097183234Ssimon	add	\$8,%rsp	# reserve for return address!
1098183234Ssimon	mov	$key,$_rsp	# save %rsp
1099183234Ssimon	mov	%rdx,$_len	# save copy of len
1100183234Ssimon	mov	%rcx,$_key	# save copy of key
1101183234Ssimon	mov	%r8,$_ivp	# save copy of ivp
1102183234Ssimon	movl	\$0,$mark	# copy of aes_key->rounds = 0;
1103183234Ssimon	mov	%r8,%rbp	# rearrange input arguments
1104183234Ssimon	mov	%rsi,$out
1105183234Ssimon	mov	%rdi,$inp
1106183234Ssimon	mov	%rcx,$key
1107183234Ssimon
1108183234Ssimon	# do we copy key schedule to stack?
1109183234Ssimon	mov	$key,%r10
1110183234Ssimon	sub	$sbox,%r10
1111183234Ssimon	and	\$0xfff,%r10
1112183234Ssimon	cmp	\$2048,%r10
1113183234Ssimon	jb	.Lcbc_do_ecopy
1114183234Ssimon	cmp	\$4096-248,%r10
1115183234Ssimon	jb	.Lcbc_skip_ecopy
1116183234Ssimon.align	4
1117183234Ssimon.Lcbc_do_ecopy:
1118183234Ssimon		mov	$key,%rsi
1119183234Ssimon		lea	$aes_key,%rdi
1120183234Ssimon		lea	$aes_key,$key
1121183234Ssimon		mov	\$240/8,%ecx
1122183234Ssimon		.long	0x90A548F3	# rep movsq
1123183234Ssimon		mov	(%rsi),%eax	# copy aes_key->rounds
1124183234Ssimon		mov	%eax,(%rdi)
1125183234Ssimon.Lcbc_skip_ecopy:
1126183234Ssimon	mov	$key,$keyp	# save key pointer
1127183234Ssimon
1128183234Ssimon	mov	\$16,%ecx
1129183234Ssimon.align	4
1130183234Ssimon.Lcbc_prefetch_te:
1131183234Ssimon		mov	0($sbox),%r10
1132183234Ssimon		mov	32($sbox),%r11
1133183234Ssimon		mov	64($sbox),%r12
1134183234Ssimon		mov	96($sbox),%r13
1135183234Ssimon		lea	128($sbox),$sbox
1136183234Ssimon		sub	\$1,%ecx
1137183234Ssimon	jnz	.Lcbc_prefetch_te
1138183234Ssimon	sub	\$2048,$sbox
1139183234Ssimon
1140183234Ssimon	test	\$-16,%rdx		# check upon length
1141183234Ssimon	mov	%rdx,%r10
1142183234Ssimon	mov	0(%rbp),$s0		# load iv
1143183234Ssimon	mov	4(%rbp),$s1
1144183234Ssimon	mov	8(%rbp),$s2
1145183234Ssimon	mov	12(%rbp),$s3
1146183234Ssimon	jz	.Lcbc_enc_tail		# short input...
1147183234Ssimon
1148183234Ssimon.align	4
1149183234Ssimon.Lcbc_enc_loop:
1150183234Ssimon		xor	0($inp),$s0
1151183234Ssimon		xor	4($inp),$s1
1152183234Ssimon		xor	8($inp),$s2
1153183234Ssimon		xor	12($inp),$s3
1154183234Ssimon		mov	$inp,$ivec	# if ($verticalspin) save inp
1155183234Ssimon
1156183234Ssimon		mov	$keyp,$key	# restore key
1157183234Ssimon		call	_x86_64_AES_encrypt
1158183234Ssimon
1159183234Ssimon		mov	$ivec,$inp	# if ($verticalspin) restore inp
1160183234Ssimon		mov	$s0,0($out)
1161183234Ssimon		mov	$s1,4($out)
1162183234Ssimon		mov	$s2,8($out)
1163183234Ssimon		mov	$s3,12($out)
1164183234Ssimon
1165183234Ssimon		mov	$_len,%r10
1166183234Ssimon		lea	16($inp),$inp
1167183234Ssimon		lea	16($out),$out
1168183234Ssimon		sub	\$16,%r10
1169183234Ssimon		test	\$-16,%r10
1170183234Ssimon		mov	%r10,$_len
1171183234Ssimon	jnz	.Lcbc_enc_loop
1172183234Ssimon	test	\$15,%r10
1173183234Ssimon	jnz	.Lcbc_enc_tail
1174183234Ssimon	mov	$_ivp,%rbp	# restore ivp
1175183234Ssimon	mov	$s0,0(%rbp)	# save ivec
1176183234Ssimon	mov	$s1,4(%rbp)
1177183234Ssimon	mov	$s2,8(%rbp)
1178183234Ssimon	mov	$s3,12(%rbp)
1179183234Ssimon
1180183234Ssimon.align	4
1181183234Ssimon.Lcbc_cleanup:
1182183234Ssimon	cmpl	\$0,$mark	# was the key schedule copied?
1183183234Ssimon	lea	$aes_key,%rdi
1184183234Ssimon	mov	$_rsp,%rsp
1185183234Ssimon	je	.Lcbc_exit
1186183234Ssimon		mov	\$240/8,%ecx
1187183234Ssimon		xor	%rax,%rax
1188183234Ssimon		.long	0x90AB48F3	# rep stosq
1189183234Ssimon.Lcbc_exit:
1190183234Ssimon	popfq
1191183234Ssimon	pop	%r15
1192183234Ssimon	pop	%r14
1193183234Ssimon	pop	%r13
1194183234Ssimon	pop	%r12
1195183234Ssimon	pop	%rbp
1196183234Ssimon	pop	%rbx
1197183234Ssimon.Lcbc_just_ret:
1198183234Ssimon	ret
1199183234Ssimon.align	4
1200183234Ssimon.Lcbc_enc_tail:
1201193645Ssimon	mov	%rax,%r11
1202193645Ssimon	mov	%rcx,%r12
1203183234Ssimon	mov	%r10,%rcx
1204183234Ssimon	mov	$inp,%rsi
1205183234Ssimon	mov	$out,%rdi
1206183234Ssimon	.long	0xF689A4F3		# rep movsb
1207183234Ssimon	mov	\$16,%rcx		# zero tail
1208183234Ssimon	sub	%r10,%rcx
1209183234Ssimon	xor	%rax,%rax
1210183234Ssimon	.long	0xF689AAF3		# rep stosb
1211183234Ssimon	mov	$out,$inp		# this is not a mistake!
1212183234Ssimon	movq	\$16,$_len		# len=16
1213193645Ssimon	mov	%r11,%rax
1214193645Ssimon	mov	%r12,%rcx
1215183234Ssimon	jmp	.Lcbc_enc_loop		# one more spin...
1216183234Ssimon#----------------------------- DECRYPT -----------------------------#
1217183234Ssimon.align	16
1218183234Ssimon.LDECRYPT:
1219183234Ssimon	lea	AES_Td-.Lcbc_pic_point($sbox),$sbox
1220183234Ssimon
1221183234Ssimon	# allocate aligned stack frame...
1222183234Ssimon	lea	-64-248(%rsp),$key
1223183234Ssimon	and	\$-64,$key
1224183234Ssimon
1225183234Ssimon	# ... and make it doesn't alias with AES_Td modulo 4096
1226183234Ssimon	mov	$sbox,%r10
1227183234Ssimon	lea	2304($sbox),%r11
1228183234Ssimon	mov	$key,%r12
1229183234Ssimon	and	\$0xFFF,%r10	# s = $sbox&0xfff
1230183234Ssimon	and	\$0xFFF,%r11	# e = ($sbox+2048+256)&0xfff
1231183234Ssimon	and	\$0xFFF,%r12	# p = %rsp&0xfff
1232183234Ssimon
1233183234Ssimon	cmp	%r11,%r12	# if (p=>e) %rsp =- (p-e);
1234183234Ssimon	jb	.Lcbc_td_break_out
1235183234Ssimon	sub	%r11,%r12
1236183234Ssimon	sub	%r12,$key
1237183234Ssimon	jmp	.Lcbc_td_ok
1238183234Ssimon.Lcbc_td_break_out:		# else %rsp -= (p-s)&0xfff + framesz
1239183234Ssimon	sub	%r10,%r12
1240183234Ssimon	and	\$0xFFF,%r12
1241183234Ssimon	add	\$320,%r12
1242183234Ssimon	sub	%r12,$key
1243183234Ssimon.align	4
1244183234Ssimon.Lcbc_td_ok:
1245183234Ssimon
1246183234Ssimon	xchg	%rsp,$key
1247183234Ssimon	add	\$8,%rsp	# reserve for return address!
1248183234Ssimon	mov	$key,$_rsp	# save %rsp
1249183234Ssimon	mov	%rdx,$_len	# save copy of len
1250183234Ssimon	mov	%rcx,$_key	# save copy of key
1251183234Ssimon	mov	%r8,$_ivp	# save copy of ivp
1252183234Ssimon	movl	\$0,$mark	# copy of aes_key->rounds = 0;
1253183234Ssimon	mov	%r8,%rbp	# rearrange input arguments
1254183234Ssimon	mov	%rsi,$out
1255183234Ssimon	mov	%rdi,$inp
1256183234Ssimon	mov	%rcx,$key
1257183234Ssimon
1258183234Ssimon	# do we copy key schedule to stack?
1259183234Ssimon	mov	$key,%r10
1260183234Ssimon	sub	$sbox,%r10
1261183234Ssimon	and	\$0xfff,%r10
1262183234Ssimon	cmp	\$2304,%r10
1263183234Ssimon	jb	.Lcbc_do_dcopy
1264183234Ssimon	cmp	\$4096-248,%r10
1265183234Ssimon	jb	.Lcbc_skip_dcopy
1266183234Ssimon.align	4
1267183234Ssimon.Lcbc_do_dcopy:
1268183234Ssimon		mov	$key,%rsi
1269183234Ssimon		lea	$aes_key,%rdi
1270183234Ssimon		lea	$aes_key,$key
1271183234Ssimon		mov	\$240/8,%ecx
1272183234Ssimon		.long	0x90A548F3	# rep movsq
1273183234Ssimon		mov	(%rsi),%eax	# copy aes_key->rounds
1274183234Ssimon		mov	%eax,(%rdi)
1275183234Ssimon.Lcbc_skip_dcopy:
1276183234Ssimon	mov	$key,$keyp	# save key pointer
1277183234Ssimon
1278183234Ssimon	mov	\$18,%ecx
1279183234Ssimon.align	4
1280183234Ssimon.Lcbc_prefetch_td:
1281183234Ssimon		mov	0($sbox),%r10
1282183234Ssimon		mov	32($sbox),%r11
1283183234Ssimon		mov	64($sbox),%r12
1284183234Ssimon		mov	96($sbox),%r13
1285183234Ssimon		lea	128($sbox),$sbox
1286183234Ssimon		sub	\$1,%ecx
1287183234Ssimon	jnz	.Lcbc_prefetch_td
1288183234Ssimon	sub	\$2304,$sbox
1289183234Ssimon
1290183234Ssimon	cmp	$inp,$out
1291183234Ssimon	je	.Lcbc_dec_in_place
1292183234Ssimon
1293183234Ssimon	mov	%rbp,$ivec
1294183234Ssimon.align	4
1295183234Ssimon.Lcbc_dec_loop:
1296183234Ssimon		mov	0($inp),$s0		# read input
1297183234Ssimon		mov	4($inp),$s1
1298183234Ssimon		mov	8($inp),$s2
1299183234Ssimon		mov	12($inp),$s3
1300183234Ssimon		mov	$inp,8+$ivec	# if ($verticalspin) save inp
1301183234Ssimon
1302183234Ssimon		mov	$keyp,$key	# restore key
1303183234Ssimon		call	_x86_64_AES_decrypt
1304183234Ssimon
1305183234Ssimon		mov	$ivec,%rbp	# load ivp
1306183234Ssimon		mov	8+$ivec,$inp	# if ($verticalspin) restore inp
1307183234Ssimon		xor	0(%rbp),$s0	# xor iv
1308183234Ssimon		xor	4(%rbp),$s1
1309183234Ssimon		xor	8(%rbp),$s2
1310183234Ssimon		xor	12(%rbp),$s3
1311183234Ssimon		mov	$inp,%rbp	# current input, next iv
1312183234Ssimon
1313183234Ssimon		mov	$_len,%r10	# load len
1314183234Ssimon		sub	\$16,%r10
1315183234Ssimon		jc	.Lcbc_dec_partial
1316183234Ssimon		mov	%r10,$_len	# update len
1317183234Ssimon		mov	%rbp,$ivec	# update ivp
1318183234Ssimon
1319183234Ssimon		mov	$s0,0($out)	# write output
1320183234Ssimon		mov	$s1,4($out)
1321183234Ssimon		mov	$s2,8($out)
1322183234Ssimon		mov	$s3,12($out)
1323183234Ssimon
1324183234Ssimon		lea	16($inp),$inp
1325183234Ssimon		lea	16($out),$out
1326183234Ssimon	jnz	.Lcbc_dec_loop
1327183234Ssimon.Lcbc_dec_end:
1328183234Ssimon	mov	$_ivp,%r12		# load user ivp
1329183234Ssimon	mov	0(%rbp),%r10		# load iv
1330183234Ssimon	mov	8(%rbp),%r11
1331183234Ssimon	mov	%r10,0(%r12)		# copy back to user
1332183234Ssimon	mov	%r11,8(%r12)
1333183234Ssimon	jmp	.Lcbc_cleanup
1334183234Ssimon
1335183234Ssimon.align	4
1336183234Ssimon.Lcbc_dec_partial:
1337183234Ssimon	mov	$s0,0+$ivec		# dump output to stack
1338183234Ssimon	mov	$s1,4+$ivec
1339183234Ssimon	mov	$s2,8+$ivec
1340183234Ssimon	mov	$s3,12+$ivec
1341183234Ssimon	mov	$out,%rdi
1342183234Ssimon	lea	$ivec,%rsi
1343183234Ssimon	mov	\$16,%rcx
1344183234Ssimon	add	%r10,%rcx		# number of bytes to copy
1345183234Ssimon	.long	0xF689A4F3		# rep movsb
1346183234Ssimon	jmp	.Lcbc_dec_end
1347183234Ssimon
1348183234Ssimon.align	16
1349183234Ssimon.Lcbc_dec_in_place:
1350183234Ssimon		mov	0($inp),$s0	# load input
1351183234Ssimon		mov	4($inp),$s1
1352183234Ssimon		mov	8($inp),$s2
1353183234Ssimon		mov	12($inp),$s3
1354183234Ssimon
1355183234Ssimon		mov	$inp,$ivec	# if ($verticalspin) save inp
1356183234Ssimon		mov	$keyp,$key
1357183234Ssimon		call	_x86_64_AES_decrypt
1358183234Ssimon
1359183234Ssimon		mov	$ivec,$inp	# if ($verticalspin) restore inp
1360183234Ssimon		mov	$_ivp,%rbp
1361183234Ssimon		xor	0(%rbp),$s0
1362183234Ssimon		xor	4(%rbp),$s1
1363183234Ssimon		xor	8(%rbp),$s2
1364183234Ssimon		xor	12(%rbp),$s3
1365183234Ssimon
1366183234Ssimon		mov	0($inp),%r10	# copy input to iv
1367183234Ssimon		mov	8($inp),%r11
1368183234Ssimon		mov	%r10,0(%rbp)
1369183234Ssimon		mov	%r11,8(%rbp)
1370183234Ssimon
1371183234Ssimon		mov	$s0,0($out)	# save output [zaps input]
1372183234Ssimon		mov	$s1,4($out)
1373183234Ssimon		mov	$s2,8($out)
1374183234Ssimon		mov	$s3,12($out)
1375183234Ssimon
1376183234Ssimon		mov	$_len,%rcx
1377183234Ssimon		lea	16($inp),$inp
1378183234Ssimon		lea	16($out),$out
1379183234Ssimon		sub	\$16,%rcx
1380183234Ssimon		jc	.Lcbc_dec_in_place_partial
1381183234Ssimon		mov	%rcx,$_len
1382183234Ssimon	jnz	.Lcbc_dec_in_place
1383183234Ssimon	jmp	.Lcbc_cleanup
1384183234Ssimon
1385183234Ssimon.align	4
1386183234Ssimon.Lcbc_dec_in_place_partial:
1387183234Ssimon	# one can argue if this is actually required
1388183234Ssimon	lea	($out,%rcx),%rdi
1389183234Ssimon	lea	(%rbp,%rcx),%rsi
1390183234Ssimon	neg	%rcx
1391183234Ssimon	.long	0xF689A4F3	# rep movsb	# restore tail
1392183234Ssimon	jmp	.Lcbc_cleanup
1393183234Ssimon.size	AES_cbc_encrypt,.-AES_cbc_encrypt
1394183234Ssimon___
1395183234Ssimon}
1396183234Ssimon
1397183234Ssimon$code.=<<___;
1398183234Ssimon.globl	AES_Te
1399183234Ssimon.align	64
1400183234SsimonAES_Te:
1401183234Ssimon___
1402183234Ssimon	&_data_word(0xa56363c6, 0x847c7cf8, 0x997777ee, 0x8d7b7bf6);
1403183234Ssimon	&_data_word(0x0df2f2ff, 0xbd6b6bd6, 0xb16f6fde, 0x54c5c591);
1404183234Ssimon	&_data_word(0x50303060, 0x03010102, 0xa96767ce, 0x7d2b2b56);
1405183234Ssimon	&_data_word(0x19fefee7, 0x62d7d7b5, 0xe6abab4d, 0x9a7676ec);
1406183234Ssimon	&_data_word(0x45caca8f, 0x9d82821f, 0x40c9c989, 0x877d7dfa);
1407183234Ssimon	&_data_word(0x15fafaef, 0xeb5959b2, 0xc947478e, 0x0bf0f0fb);
1408183234Ssimon	&_data_word(0xecadad41, 0x67d4d4b3, 0xfda2a25f, 0xeaafaf45);
1409183234Ssimon	&_data_word(0xbf9c9c23, 0xf7a4a453, 0x967272e4, 0x5bc0c09b);
1410183234Ssimon	&_data_word(0xc2b7b775, 0x1cfdfde1, 0xae93933d, 0x6a26264c);
1411183234Ssimon	&_data_word(0x5a36366c, 0x413f3f7e, 0x02f7f7f5, 0x4fcccc83);
1412183234Ssimon	&_data_word(0x5c343468, 0xf4a5a551, 0x34e5e5d1, 0x08f1f1f9);
1413183234Ssimon	&_data_word(0x937171e2, 0x73d8d8ab, 0x53313162, 0x3f15152a);
1414183234Ssimon	&_data_word(0x0c040408, 0x52c7c795, 0x65232346, 0x5ec3c39d);
1415183234Ssimon	&_data_word(0x28181830, 0xa1969637, 0x0f05050a, 0xb59a9a2f);
1416183234Ssimon	&_data_word(0x0907070e, 0x36121224, 0x9b80801b, 0x3de2e2df);
1417183234Ssimon	&_data_word(0x26ebebcd, 0x6927274e, 0xcdb2b27f, 0x9f7575ea);
1418183234Ssimon	&_data_word(0x1b090912, 0x9e83831d, 0x742c2c58, 0x2e1a1a34);
1419183234Ssimon	&_data_word(0x2d1b1b36, 0xb26e6edc, 0xee5a5ab4, 0xfba0a05b);
1420183234Ssimon	&_data_word(0xf65252a4, 0x4d3b3b76, 0x61d6d6b7, 0xceb3b37d);
1421183234Ssimon	&_data_word(0x7b292952, 0x3ee3e3dd, 0x712f2f5e, 0x97848413);
1422183234Ssimon	&_data_word(0xf55353a6, 0x68d1d1b9, 0x00000000, 0x2cededc1);
1423183234Ssimon	&_data_word(0x60202040, 0x1ffcfce3, 0xc8b1b179, 0xed5b5bb6);
1424183234Ssimon	&_data_word(0xbe6a6ad4, 0x46cbcb8d, 0xd9bebe67, 0x4b393972);
1425183234Ssimon	&_data_word(0xde4a4a94, 0xd44c4c98, 0xe85858b0, 0x4acfcf85);
1426183234Ssimon	&_data_word(0x6bd0d0bb, 0x2aefefc5, 0xe5aaaa4f, 0x16fbfbed);
1427183234Ssimon	&_data_word(0xc5434386, 0xd74d4d9a, 0x55333366, 0x94858511);
1428183234Ssimon	&_data_word(0xcf45458a, 0x10f9f9e9, 0x06020204, 0x817f7ffe);
1429183234Ssimon	&_data_word(0xf05050a0, 0x443c3c78, 0xba9f9f25, 0xe3a8a84b);
1430183234Ssimon	&_data_word(0xf35151a2, 0xfea3a35d, 0xc0404080, 0x8a8f8f05);
1431183234Ssimon	&_data_word(0xad92923f, 0xbc9d9d21, 0x48383870, 0x04f5f5f1);
1432183234Ssimon	&_data_word(0xdfbcbc63, 0xc1b6b677, 0x75dadaaf, 0x63212142);
1433183234Ssimon	&_data_word(0x30101020, 0x1affffe5, 0x0ef3f3fd, 0x6dd2d2bf);
1434183234Ssimon	&_data_word(0x4ccdcd81, 0x140c0c18, 0x35131326, 0x2fececc3);
1435183234Ssimon	&_data_word(0xe15f5fbe, 0xa2979735, 0xcc444488, 0x3917172e);
1436183234Ssimon	&_data_word(0x57c4c493, 0xf2a7a755, 0x827e7efc, 0x473d3d7a);
1437183234Ssimon	&_data_word(0xac6464c8, 0xe75d5dba, 0x2b191932, 0x957373e6);
1438183234Ssimon	&_data_word(0xa06060c0, 0x98818119, 0xd14f4f9e, 0x7fdcdca3);
1439183234Ssimon	&_data_word(0x66222244, 0x7e2a2a54, 0xab90903b, 0x8388880b);
1440183234Ssimon	&_data_word(0xca46468c, 0x29eeeec7, 0xd3b8b86b, 0x3c141428);
1441183234Ssimon	&_data_word(0x79dedea7, 0xe25e5ebc, 0x1d0b0b16, 0x76dbdbad);
1442183234Ssimon	&_data_word(0x3be0e0db, 0x56323264, 0x4e3a3a74, 0x1e0a0a14);
1443183234Ssimon	&_data_word(0xdb494992, 0x0a06060c, 0x6c242448, 0xe45c5cb8);
1444183234Ssimon	&_data_word(0x5dc2c29f, 0x6ed3d3bd, 0xefacac43, 0xa66262c4);
1445183234Ssimon	&_data_word(0xa8919139, 0xa4959531, 0x37e4e4d3, 0x8b7979f2);
1446183234Ssimon	&_data_word(0x32e7e7d5, 0x43c8c88b, 0x5937376e, 0xb76d6dda);
1447183234Ssimon	&_data_word(0x8c8d8d01, 0x64d5d5b1, 0xd24e4e9c, 0xe0a9a949);
1448183234Ssimon	&_data_word(0xb46c6cd8, 0xfa5656ac, 0x07f4f4f3, 0x25eaeacf);
1449183234Ssimon	&_data_word(0xaf6565ca, 0x8e7a7af4, 0xe9aeae47, 0x18080810);
1450183234Ssimon	&_data_word(0xd5baba6f, 0x887878f0, 0x6f25254a, 0x722e2e5c);
1451183234Ssimon	&_data_word(0x241c1c38, 0xf1a6a657, 0xc7b4b473, 0x51c6c697);
1452183234Ssimon	&_data_word(0x23e8e8cb, 0x7cdddda1, 0x9c7474e8, 0x211f1f3e);
1453183234Ssimon	&_data_word(0xdd4b4b96, 0xdcbdbd61, 0x868b8b0d, 0x858a8a0f);
1454183234Ssimon	&_data_word(0x907070e0, 0x423e3e7c, 0xc4b5b571, 0xaa6666cc);
1455183234Ssimon	&_data_word(0xd8484890, 0x05030306, 0x01f6f6f7, 0x120e0e1c);
1456183234Ssimon	&_data_word(0xa36161c2, 0x5f35356a, 0xf95757ae, 0xd0b9b969);
1457183234Ssimon	&_data_word(0x91868617, 0x58c1c199, 0x271d1d3a, 0xb99e9e27);
1458183234Ssimon	&_data_word(0x38e1e1d9, 0x13f8f8eb, 0xb398982b, 0x33111122);
1459183234Ssimon	&_data_word(0xbb6969d2, 0x70d9d9a9, 0x898e8e07, 0xa7949433);
1460183234Ssimon	&_data_word(0xb69b9b2d, 0x221e1e3c, 0x92878715, 0x20e9e9c9);
1461183234Ssimon	&_data_word(0x49cece87, 0xff5555aa, 0x78282850, 0x7adfdfa5);
1462183234Ssimon	&_data_word(0x8f8c8c03, 0xf8a1a159, 0x80898909, 0x170d0d1a);
1463183234Ssimon	&_data_word(0xdabfbf65, 0x31e6e6d7, 0xc6424284, 0xb86868d0);
1464183234Ssimon	&_data_word(0xc3414182, 0xb0999929, 0x772d2d5a, 0x110f0f1e);
1465183234Ssimon	&_data_word(0xcbb0b07b, 0xfc5454a8, 0xd6bbbb6d, 0x3a16162c);
1466183234Ssimon#rcon:
1467183234Ssimon$code.=<<___;
1468183234Ssimon	.long	0x00000001, 0x00000002, 0x00000004, 0x00000008
1469183234Ssimon	.long	0x00000010, 0x00000020, 0x00000040, 0x00000080
1470183234Ssimon	.long	0x0000001b, 0x00000036, 0, 0, 0, 0, 0, 0
1471183234Ssimon___
1472183234Ssimon$code.=<<___;
1473183234Ssimon.globl	AES_Td
1474183234Ssimon.align	64
1475183234SsimonAES_Td:
1476183234Ssimon___
1477183234Ssimon	&_data_word(0x50a7f451, 0x5365417e, 0xc3a4171a, 0x965e273a);
1478183234Ssimon	&_data_word(0xcb6bab3b, 0xf1459d1f, 0xab58faac, 0x9303e34b);
1479183234Ssimon	&_data_word(0x55fa3020, 0xf66d76ad, 0x9176cc88, 0x254c02f5);
1480183234Ssimon	&_data_word(0xfcd7e54f, 0xd7cb2ac5, 0x80443526, 0x8fa362b5);
1481183234Ssimon	&_data_word(0x495ab1de, 0x671bba25, 0x980eea45, 0xe1c0fe5d);
1482183234Ssimon	&_data_word(0x02752fc3, 0x12f04c81, 0xa397468d, 0xc6f9d36b);
1483183234Ssimon	&_data_word(0xe75f8f03, 0x959c9215, 0xeb7a6dbf, 0xda595295);
1484183234Ssimon	&_data_word(0x2d83bed4, 0xd3217458, 0x2969e049, 0x44c8c98e);
1485183234Ssimon	&_data_word(0x6a89c275, 0x78798ef4, 0x6b3e5899, 0xdd71b927);
1486183234Ssimon	&_data_word(0xb64fe1be, 0x17ad88f0, 0x66ac20c9, 0xb43ace7d);
1487183234Ssimon	&_data_word(0x184adf63, 0x82311ae5, 0x60335197, 0x457f5362);
1488183234Ssimon	&_data_word(0xe07764b1, 0x84ae6bbb, 0x1ca081fe, 0x942b08f9);
1489183234Ssimon	&_data_word(0x58684870, 0x19fd458f, 0x876cde94, 0xb7f87b52);
1490183234Ssimon	&_data_word(0x23d373ab, 0xe2024b72, 0x578f1fe3, 0x2aab5566);
1491183234Ssimon	&_data_word(0x0728ebb2, 0x03c2b52f, 0x9a7bc586, 0xa50837d3);
1492183234Ssimon	&_data_word(0xf2872830, 0xb2a5bf23, 0xba6a0302, 0x5c8216ed);
1493183234Ssimon	&_data_word(0x2b1ccf8a, 0x92b479a7, 0xf0f207f3, 0xa1e2694e);
1494183234Ssimon	&_data_word(0xcdf4da65, 0xd5be0506, 0x1f6234d1, 0x8afea6c4);
1495183234Ssimon	&_data_word(0x9d532e34, 0xa055f3a2, 0x32e18a05, 0x75ebf6a4);
1496183234Ssimon	&_data_word(0x39ec830b, 0xaaef6040, 0x069f715e, 0x51106ebd);
1497183234Ssimon	&_data_word(0xf98a213e, 0x3d06dd96, 0xae053edd, 0x46bde64d);
1498183234Ssimon	&_data_word(0xb58d5491, 0x055dc471, 0x6fd40604, 0xff155060);
1499183234Ssimon	&_data_word(0x24fb9819, 0x97e9bdd6, 0xcc434089, 0x779ed967);
1500183234Ssimon	&_data_word(0xbd42e8b0, 0x888b8907, 0x385b19e7, 0xdbeec879);
1501183234Ssimon	&_data_word(0x470a7ca1, 0xe90f427c, 0xc91e84f8, 0x00000000);
1502183234Ssimon	&_data_word(0x83868009, 0x48ed2b32, 0xac70111e, 0x4e725a6c);
1503183234Ssimon	&_data_word(0xfbff0efd, 0x5638850f, 0x1ed5ae3d, 0x27392d36);
1504183234Ssimon	&_data_word(0x64d90f0a, 0x21a65c68, 0xd1545b9b, 0x3a2e3624);
1505183234Ssimon	&_data_word(0xb1670a0c, 0x0fe75793, 0xd296eeb4, 0x9e919b1b);
1506183234Ssimon	&_data_word(0x4fc5c080, 0xa220dc61, 0x694b775a, 0x161a121c);
1507183234Ssimon	&_data_word(0x0aba93e2, 0xe52aa0c0, 0x43e0223c, 0x1d171b12);
1508183234Ssimon	&_data_word(0x0b0d090e, 0xadc78bf2, 0xb9a8b62d, 0xc8a91e14);
1509183234Ssimon	&_data_word(0x8519f157, 0x4c0775af, 0xbbdd99ee, 0xfd607fa3);
1510183234Ssimon	&_data_word(0x9f2601f7, 0xbcf5725c, 0xc53b6644, 0x347efb5b);
1511183234Ssimon	&_data_word(0x7629438b, 0xdcc623cb, 0x68fcedb6, 0x63f1e4b8);
1512183234Ssimon	&_data_word(0xcadc31d7, 0x10856342, 0x40229713, 0x2011c684);
1513183234Ssimon	&_data_word(0x7d244a85, 0xf83dbbd2, 0x1132f9ae, 0x6da129c7);
1514183234Ssimon	&_data_word(0x4b2f9e1d, 0xf330b2dc, 0xec52860d, 0xd0e3c177);
1515183234Ssimon	&_data_word(0x6c16b32b, 0x99b970a9, 0xfa489411, 0x2264e947);
1516183234Ssimon	&_data_word(0xc48cfca8, 0x1a3ff0a0, 0xd82c7d56, 0xef903322);
1517183234Ssimon	&_data_word(0xc74e4987, 0xc1d138d9, 0xfea2ca8c, 0x360bd498);
1518183234Ssimon	&_data_word(0xcf81f5a6, 0x28de7aa5, 0x268eb7da, 0xa4bfad3f);
1519183234Ssimon	&_data_word(0xe49d3a2c, 0x0d927850, 0x9bcc5f6a, 0x62467e54);
1520183234Ssimon	&_data_word(0xc2138df6, 0xe8b8d890, 0x5ef7392e, 0xf5afc382);
1521183234Ssimon	&_data_word(0xbe805d9f, 0x7c93d069, 0xa92dd56f, 0xb31225cf);
1522183234Ssimon	&_data_word(0x3b99acc8, 0xa77d1810, 0x6e639ce8, 0x7bbb3bdb);
1523183234Ssimon	&_data_word(0x097826cd, 0xf418596e, 0x01b79aec, 0xa89a4f83);
1524183234Ssimon	&_data_word(0x656e95e6, 0x7ee6ffaa, 0x08cfbc21, 0xe6e815ef);
1525183234Ssimon	&_data_word(0xd99be7ba, 0xce366f4a, 0xd4099fea, 0xd67cb029);
1526183234Ssimon	&_data_word(0xafb2a431, 0x31233f2a, 0x3094a5c6, 0xc066a235);
1527183234Ssimon	&_data_word(0x37bc4e74, 0xa6ca82fc, 0xb0d090e0, 0x15d8a733);
1528183234Ssimon	&_data_word(0x4a9804f1, 0xf7daec41, 0x0e50cd7f, 0x2ff69117);
1529183234Ssimon	&_data_word(0x8dd64d76, 0x4db0ef43, 0x544daacc, 0xdf0496e4);
1530183234Ssimon	&_data_word(0xe3b5d19e, 0x1b886a4c, 0xb81f2cc1, 0x7f516546);
1531183234Ssimon	&_data_word(0x04ea5e9d, 0x5d358c01, 0x737487fa, 0x2e410bfb);
1532183234Ssimon	&_data_word(0x5a1d67b3, 0x52d2db92, 0x335610e9, 0x1347d66d);
1533183234Ssimon	&_data_word(0x8c61d79a, 0x7a0ca137, 0x8e14f859, 0x893c13eb);
1534183234Ssimon	&_data_word(0xee27a9ce, 0x35c961b7, 0xede51ce1, 0x3cb1477a);
1535183234Ssimon	&_data_word(0x59dfd29c, 0x3f73f255, 0x79ce1418, 0xbf37c773);
1536183234Ssimon	&_data_word(0xeacdf753, 0x5baafd5f, 0x146f3ddf, 0x86db4478);
1537183234Ssimon	&_data_word(0x81f3afca, 0x3ec468b9, 0x2c342438, 0x5f40a3c2);
1538183234Ssimon	&_data_word(0x72c31d16, 0x0c25e2bc, 0x8b493c28, 0x41950dff);
1539183234Ssimon	&_data_word(0x7101a839, 0xdeb30c08, 0x9ce4b4d8, 0x90c15664);
1540183234Ssimon	&_data_word(0x6184cb7b, 0x70b632d5, 0x745c6c48, 0x4257b8d0);
1541183234Ssimon#Td4:
1542183234Ssimon	&data_byte(0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38);
1543183234Ssimon	&data_byte(0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb);
1544183234Ssimon	&data_byte(0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87);
1545183234Ssimon	&data_byte(0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb);
1546183234Ssimon	&data_byte(0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d);
1547183234Ssimon	&data_byte(0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e);
1548183234Ssimon	&data_byte(0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2);
1549183234Ssimon	&data_byte(0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25);
1550183234Ssimon	&data_byte(0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16);
1551183234Ssimon	&data_byte(0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92);
1552183234Ssimon	&data_byte(0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda);
1553183234Ssimon	&data_byte(0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84);
1554183234Ssimon	&data_byte(0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a);
1555183234Ssimon	&data_byte(0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06);
1556183234Ssimon	&data_byte(0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02);
1557183234Ssimon	&data_byte(0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b);
1558183234Ssimon	&data_byte(0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea);
1559183234Ssimon	&data_byte(0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73);
1560183234Ssimon	&data_byte(0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85);
1561183234Ssimon	&data_byte(0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e);
1562183234Ssimon	&data_byte(0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89);
1563183234Ssimon	&data_byte(0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b);
1564183234Ssimon	&data_byte(0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20);
1565183234Ssimon	&data_byte(0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4);
1566183234Ssimon	&data_byte(0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31);
1567183234Ssimon	&data_byte(0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f);
1568183234Ssimon	&data_byte(0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d);
1569183234Ssimon	&data_byte(0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef);
1570183234Ssimon	&data_byte(0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0);
1571183234Ssimon	&data_byte(0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61);
1572183234Ssimon	&data_byte(0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26);
1573183234Ssimon	&data_byte(0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d);
1574183234Ssimon
1575183234Ssimon$code =~ s/\`([^\`]*)\`/eval($1)/gem;
1576183234Ssimon
1577183234Ssimonprint $code;
1578183234Ssimon
1579183234Ssimonclose STDOUT;
1580