#!/usr/bin/env perl
-# Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
+# Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.
#
# Licensed under the OpenSSL license (the "License"). You may not use
# this file except in compliance with the License. You can obtain a copy
# it gets compensated by availability of rotate. Not to forget that
# most processors achieve higher issue rate with scalar instructions.
#
+# February 2018.
+#
+# Add hardware-assisted ARMv8.2 implementation. It's KECCAK_1X_ALT
+# variant with register permutation/rotation twist that allows to
+# eliminate copies to temporary registers. If you look closely you'll
+# notice that it uses only one lane of vector registers. The new
+# instructions effectively facilitate parallel hashing, which we don't
+# support [yet?]. But lowest-level core procedure is prepared for it.
+# The inner round is 67 [vector] instructions, so it's not actually
+# obvious that it will provide performance improvement [in serial
+# hash] as long as vector instructions issue rate is limited to 1 per
+# cycle...
+#
######################################################################
# Numbers are cycles per processed byte.
#
open OUT,"| \"$^X\" $xlate $flavour $output";
*STDOUT=*OUT;
-my @A = map([ "x$_", "x".($_+1), "x".($_+2), "x".($_+3), "x".($_+4) ],
- (0, 5, 10, 15, 20));
- $A[3][3] = "x25"; # x18 is reserved
-
-my @C = map("x$_", (26,27,28,30));
-
my @rhotates = ([ 0, 1, 62, 28, 27 ],
[ 36, 44, 6, 55, 20 ],
[ 3, 10, 43, 25, 39 ],
.quad 0x0000000080000001
.quad 0x8000000080008008
.size iotas,.-iotas
+___
+ {{{
+my @A = map([ "x$_", "x".($_+1), "x".($_+2), "x".($_+3), "x".($_+4) ],
+ (0, 5, 10, 15, 20));
+ $A[3][3] = "x25"; # x18 is reserved
+
+my @C = map("x$_", (26,27,28,30));
+$code.=<<___;
.type KeccakF1600_int,%function
.align 5
KeccakF1600_int:
ldp x29,x30,[sp],#48
ret
.size SHA3_squeeze,.-SHA3_squeeze
+___
+} }}}
+ {{{
+my @A = map([ "v".$_.".16b", "v".($_+1).".16b", "v".($_+2).".16b",
+ "v".($_+3).".16b", "v".($_+4).".16b" ],
+ (0, 5, 10, 15, 20));
+
+my @C = map("v$_.16b", (25..31));
+
+$code.=<<___;
+.type KeccakF1600_ce,%function
+.align 5
+KeccakF1600_ce:
+ mov x9,#6
+ adr x10,iotas
+ b .Loop_ce
+.align 4
+.Loop_ce:
+___
+for($i=0; $i<4; $i++) {
+$code.=<<___;
+ ////////////////////////////////////////////////// Theta
+ eor3 $C[0],$A[0][0],$A[1][0],$A[2][0]
+ eor3 $C[1],$A[0][1],$A[1][1],$A[2][1]
+ eor3 $C[2],$A[0][2],$A[1][2],$A[2][2]
+ eor3 $C[3],$A[0][3],$A[1][3],$A[2][3]
+ eor3 $C[4],$A[0][4],$A[1][4],$A[2][4]
+ eor3 $C[0],$C[0], $A[3][0],$A[4][0]
+ eor3 $C[1],$C[1], $A[3][1],$A[4][1]
+ eor3 $C[2],$C[2], $A[3][2],$A[4][2]
+ eor3 $C[3],$C[3], $A[3][3],$A[4][3]
+ eor3 $C[4],$C[4], $A[3][4],$A[4][4]
+
+ rax1 $C[5],$C[0],$C[2] // D[1]
+ rax1 $C[6],$C[1],$C[3] // D[2]
+ rax1 $C[2],$C[2],$C[4] // D[3]
+ rax1 $C[3],$C[3],$C[0] // D[4]
+ rax1 $C[4],$C[4],$C[1] // D[0]
+
+ ////////////////////////////////////////////////// Theta+Rho+Pi
+ xar $C[0], $A[1][1],$C[5],#64-$rhotates[1][1] // C[0]=A[0][1]
+ xar $A[1][1],$A[1][4],$C[3],#64-$rhotates[1][4]
+ xar $A[1][4],$A[4][2],$C[6],#64-$rhotates[4][2]
+ xar $A[4][2],$A[2][4],$C[3],#64-$rhotates[2][4]
+ xar $A[2][4],$A[4][0],$C[4],#64-$rhotates[4][0]
+
+ xar $A[4][0],$A[0][2],$C[6],#64-$rhotates[0][2]
+
+ xar $A[0][2],$A[2][2],$C[6],#64-$rhotates[2][2]
+ xar $A[2][2],$A[2][3],$C[2],#64-$rhotates[2][3]
+ xar $A[2][3],$A[3][4],$C[3],#64-$rhotates[3][4]
+ xar $A[3][4],$A[4][3],$C[2],#64-$rhotates[4][3]
+ xar $A[4][3],$A[3][0],$C[4],#64-$rhotates[3][0]
+
+ xar $A[3][0],$A[0][4],$C[3],#64-$rhotates[0][4]
+
+ eor $A[0][0],$A[0][0],$C[4]
+ ldr x11,[x10],#8
+
+ xar $C[1] ,$A[3][3],$C[2],#64-$rhotates[3][3] // C[1]=A[0][3]
+ xar $A[3][3],$A[3][2],$C[6],#64-$rhotates[3][2]
+ xar $A[3][2],$A[2][1],$C[5],#64-$rhotates[2][1]
+ xar $A[2][1],$A[1][2],$C[6],#64-$rhotates[1][2]
+ xar $A[1][2],$A[2][0],$C[4],#64-$rhotates[2][0]
+
+ xar $A[2][0],$A[0][1],$C[5],#64-$rhotates[0][1] // *
+
+ xar $A[0][4],$A[4][4],$C[3],#64-$rhotates[4][4]
+ xar $A[4][4],$A[4][1],$C[5],#64-$rhotates[4][1]
+ xar $A[4][1],$A[1][3],$C[2],#64-$rhotates[1][3]
+ xar $A[1][3],$A[3][1],$C[5],#64-$rhotates[3][1]
+ xar $A[3][1],$A[1][0],$C[4],#64-$rhotates[1][0]
+
+ xar $A[1][0],$A[0][3],$C[2],#64-$rhotates[0][3] // *
+
+ ////////////////////////////////////////////////// Chi+Iota
+ dup $C[6],x11 // borrow C[6]
+ bcax $C[3], $A[0][0],$A[0][2],$C[0] // *
+ bcax $A[0][1],$C[0], $C[1], $A[0][2] // *
+ bcax $A[0][2],$A[0][2],$A[0][4],$C[1]
+ bcax $A[0][3],$C[1], $A[0][0],$A[0][4]
+ bcax $A[0][4],$A[0][4],$C[0], $A[0][0]
+
+ bcax $C[0], $A[1][0],$A[1][2],$A[1][1] // *
+ bcax $C[1], $A[1][1],$A[1][3],$A[1][2] // *
+ bcax $A[1][2],$A[1][2],$A[1][4],$A[1][3]
+ bcax $A[1][3],$A[1][3],$A[1][0],$A[1][4]
+ bcax $A[1][4],$A[1][4],$A[1][1],$A[1][0]
+
+ eor $A[0][0],$C[3],$C[6] // Iota
+
+ bcax $C[2], $A[2][0],$A[2][2],$A[2][1] // *
+ bcax $C[3], $A[2][1],$A[2][3],$A[2][2] // *
+ bcax $A[2][2],$A[2][2],$A[2][4],$A[2][3]
+ bcax $A[2][3],$A[2][3],$A[2][0],$A[2][4]
+ bcax $A[2][4],$A[2][4],$A[2][1],$A[2][0]
+
+ bcax $A[2][0],$A[3][0],$A[3][2],$A[3][1] // *
+ bcax $A[2][1],$A[3][1],$A[3][3],$A[3][2] // *
+ bcax $A[3][2],$A[3][2],$A[3][4],$A[3][3]
+ bcax $A[3][3],$A[3][3],$A[3][0],$A[3][4]
+ bcax $A[3][4],$A[3][4],$A[3][1],$A[3][0]
+
+ bcax $A[3][0],$A[4][0],$A[4][2],$A[4][1] // *
+ bcax $A[3][1],$A[4][1],$A[4][3],$A[4][2] // *
+ bcax $A[4][2],$A[4][2],$A[4][4],$A[4][3]
+ bcax $A[4][3],$A[4][3],$A[4][0],$A[4][4]
+ bcax $A[4][4],$A[4][4],$A[4][1],$A[4][0]
+___
+ ($A[1][0],$A[1][1], $C[0],$C[1])
+ = ($C[0],$C[1], $A[1][0],$A[1][1]);
+ ($A[2][0],$A[2][1], $A[3][0],$A[3][1], $A[4][0],$A[4][1], $C[2],$C[3])
+ = ($C[2],$C[3], $A[2][0],$A[2][1], $A[3][0],$A[3][1], $A[4][0],$A[4][1]);
+}
+$code.=<<___;
+ subs x9,x9,#1
+ bne .Loop_ce
+
+ ret
+.size KeccakF1600_ce,.-KeccakF1600_ce
+
+.type KeccakF1600_cext,%function
+.align 5
+KeccakF1600_cext:
+ stp x29,x30,[sp,#-80]!
+ add x29,sp,#0
+ stp d8,d9,[sp,#16] // per ABI requirement
+ stp d10,d11,[sp,#32]
+ stp d12,d13,[sp,#48]
+ stp d14,d15,[sp,#64]
+___
+for($i=0; $i<24; $i+=2) { # load A[5][5]
+my $j=$i+1;
+$code.=<<___;
+ ldp d$i,d$j,[x0,#8*$i]
+___
+}
+$code.=<<___;
+ ldr d24,[x0,#8*$i]
+ bl KeccakF1600_ce
+ ldr x30,[sp,#8]
+___
+for($i=0; $i<24; $i+=2) { # store A[5][5]
+my $j=$i+1;
+$code.=<<___;
+ stp d$i,d$j,[x0,#8*$i]
+___
+}
+$code.=<<___;
+ str d24,[x0,#8*$i]
+
+ ldp d8,d9,[sp,#16]
+ ldp d10,d11,[sp,#32]
+ ldp d12,d13,[sp,#48]
+ ldp d14,d15,[sp,#64]
+ ldr x29,[sp],#80
+ ret
+.size KeccakF1600_cext,.-KeccakF1600_cext
+___
+
+{
+my ($ctx,$inp,$len,$bsz) = map("x$_",(0..3));
+
+$code.=<<___;
+.globl SHA3_absorb_cext
+.type SHA3_absorb_cext,%function
+.align 5
+SHA3_absorb_cext:
+ stp x29,x30,[sp,#-80]!
+ add x29,sp,#0
+ stp d8,d9,[sp,#16] // per ABI requirement
+ stp d10,d11,[sp,#32]
+ stp d12,d13,[sp,#48]
+ stp d14,d15,[sp,#64]
+___
+for($i=0; $i<24; $i+=2) { # load A[5][5]
+my $j=$i+1;
+$code.=<<___;
+ ldp d$i,d$j,[x0,#8*$i]
+___
+}
+$code.=<<___;
+ ldr d24,[x0,#8*$i]
+ b .Loop_absorb_ce
+
+.align 4
+.Loop_absorb_ce:
+ subs $len,$len,$bsz // len - bsz
+ blo .Labsorbed_ce
+___
+for (my $i=0; $i<24; $i+=2) {
+my $j = $i+1;
+$code.=<<___;
+ ldr d31,[$inp],#8 // *inp++
+#ifdef __AARCH64EB__
+ rev64 v31.16b,v31.16b
+#endif
+ eor $A[$i/5][$i%5],$A[$i/5][$i%5],v31.16b
+ cmp $bsz,#8*($i+2)
+ blo .Lprocess_block_ce
+ ldr d31,[$inp],#8 // *inp++
+#ifdef __AARCH64EB__
+ rev v31.16b,v31.16b
+#endif
+ eor $A[$j/5][$j%5],$A[$j/5][$j%5],v31.16b
+ beq .Lprocess_block_ce
+___
+}
+$code.=<<___;
+ ldr d31,[$inp],#8 // *inp++
+#ifdef __AARCH64EB__
+ rev v31.16b,v31.16b
+#endif
+ eor $A[4][4],$A[4][4],v31.16b
+
+.Lprocess_block_ce:
+
+ bl KeccakF1600_ce
+
+ b .Loop_absorb_ce
+
+.align 4
+.Labsorbed_ce:
+___
+for($i=0; $i<24; $i+=2) { # store A[5][5]
+my $j=$i+1;
+$code.=<<___;
+ stp d$i,d$j,[x0,#8*$i]
+___
+}
+$code.=<<___;
+ str d24,[x0,#8*$i]
+ add x0,$len,$bsz // return value
+
+ ldp d8,d9,[sp,#16]
+ ldp d10,d11,[sp,#32]
+ ldp d12,d13,[sp,#48]
+ ldp d14,d15,[sp,#64]
+ ldp x29,x30,[sp],#80
+ ret
+.size SHA3_absorb_cext,.-SHA3_absorb_cext
+___
+}
+{
+my ($ctx,$out,$len,$bsz) = map("x$_",(0..3));
+$code.=<<___;
+.globl SHA3_squeeze_cext
+.type SHA3_squeeze_cext,%function
+.align 5
+SHA3_squeeze_cext:
+ stp x29,x30,[sp,#-16]!
+ add x29,sp,#0
+ mov x9,$ctx
+ mov x10,$bsz
+
+.Loop_squeeze_ce:
+ ldr x4,[x9],#8
+ cmp $len,#8
+ blo .Lsqueeze_tail_ce
+#ifdef __AARCH64EB__
+ rev x4,x4
+#endif
+ str x4,[$out],#8
+ beq .Lsqueeze_done_ce
+
+ sub $len,$len,#8
+ subs x10,x10,#8
+ bhi .Loop_squeeze_ce
+
+ bl KeccakF1600_cext
+ ldr x30,[sp,#8]
+ mov x9,$ctx
+ mov x10,$bsz
+ b .Loop_squeeze_ce
+
+.align 4
+.Lsqueeze_tail_ce:
+ strb w4,[$out],#1
+ lsr x4,x4,#8
+ subs $len,$len,#1
+ beq .Lsqueeze_done_ce
+ strb w4,[$out],#1
+ lsr x4,x4,#8
+ subs $len,$len,#1
+ beq .Lsqueeze_done_ce
+ strb w4,[$out],#1
+ lsr x4,x4,#8
+ subs $len,$len,#1
+ beq .Lsqueeze_done_ce
+ strb w4,[$out],#1
+ lsr x4,x4,#8
+ subs $len,$len,#1
+ beq .Lsqueeze_done_ce
+ strb w4,[$out],#1
+ lsr x4,x4,#8
+ subs $len,$len,#1
+ beq .Lsqueeze_done_ce
+ strb w4,[$out],#1
+ lsr x4,x4,#8
+ subs $len,$len,#1
+ beq .Lsqueeze_done_ce
+ strb w4,[$out],#1
+
+.Lsqueeze_done_ce:
+ ldr x29,[sp],#16
+ ret
+.size SHA3_squeeze_cext,.-SHA3_squeeze_cext
+___
+} }}}
+$code.=<<___;
.asciz "Keccak-1600 absorb and squeeze for ARMv8, CRYPTOGAMS by <appro\@openssl.org>"
___
+
+{ my %opcode = (
+ "rax1" => 0xce608c00, "eor3" => 0xce000000,
+ "bcax" => 0xce200000, "xar" => 0xce800000 );
+
+ sub unsha3 {
+ my ($mnemonic,$arg)=@_;
+
+ $arg =~ m/[qv]([0-9]+)[^,]*,\s*[qv]([0-9]+)[^,]*(?:,\s*[qv]([0-9]+)[^,]*(?:,\s*[qv#]([0-9\-]+))?)?/
+ &&
+ sprintf ".inst\t0x%08x\t//%s %s",
+ $opcode{$mnemonic}|$1|($2<<5)|($3<<16)|(eval($4)<<10),
+ $mnemonic,$arg;
+ }
+}
+
+foreach(split("\n",$code)) {
+
+ s/\`([^\`]*)\`/eval($1)/ge;
+
+ m/\bdup\b/ and s/\.16b/.2d/g or
+ s/\b(eor3|rax1|xar|bcax)\s+(v.*)/unsha3($1,$2)/ge;
+
+ print $_,"\n";
}
-print $code;
close STDOUT;
projects / oweals / openssl.git / commitdiff