807 lines
19 KiB
Perl
807 lines
19 KiB
Perl
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#!/usr/bin/env perl
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#
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# ====================================================================
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# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
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# project. The module is, however, dual licensed under OpenSSL and
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# CRYPTOGAMS licenses depending on where you obtain it. For further
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# details see http://www.openssl.org/~appro/cryptogams/.
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# ====================================================================
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#
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# March, June 2010
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#
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# The module implements "4-bit" GCM GHASH function and underlying
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# single multiplication operation in GF(2^128). "4-bit" means that
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# it uses 256 bytes per-key table [+128 bytes shared table]. GHASH
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# function features so called "528B" variant utilizing additional
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# 256+16 bytes of per-key storage [+512 bytes shared table].
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# Performance results are for this streamed GHASH subroutine and are
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# expressed in cycles per processed byte, less is better:
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#
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# gcc 3.4.x(*) assembler
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#
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# P4 28.6 14.0 +100%
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# Opteron 19.3 7.7 +150%
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# Core2 17.8 8.1(**) +120%
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#
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# (*) comparison is not completely fair, because C results are
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# for vanilla "256B" implementation, while assembler results
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# are for "528B";-)
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# (**) it's mystery [to me] why Core2 result is not same as for
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# Opteron;
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# May 2010
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#
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# Add PCLMULQDQ version performing at 2.02 cycles per processed byte.
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# See ghash-x86.pl for background information and details about coding
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# techniques.
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#
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# Special thanks to David Woodhouse <dwmw2@infradead.org> for
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# providing access to a Westmere-based system on behalf of Intel
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# Open Source Technology Centre.
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$flavour = shift;
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$output = shift;
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if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
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$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
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$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
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( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or
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( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
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die "can't locate x86_64-xlate.pl";
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open OUT,"| \"$^X\" $xlate $flavour $output";
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*STDOUT=*OUT;
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# common register layout
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$nlo="%rax";
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$nhi="%rbx";
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$Zlo="%r8";
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$Zhi="%r9";
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$tmp="%r10";
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$rem_4bit = "%r11";
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$Xi="%rdi";
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$Htbl="%rsi";
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# per-function register layout
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$cnt="%rcx";
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$rem="%rdx";
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sub LB() { my $r=shift; $r =~ s/%[er]([a-d])x/%\1l/ or
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$r =~ s/%[er]([sd]i)/%\1l/ or
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$r =~ s/%[er](bp)/%\1l/ or
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$r =~ s/%(r[0-9]+)[d]?/%\1b/; $r; }
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sub AUTOLOAD() # thunk [simplified] 32-bit style perlasm
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{ my $opcode = $AUTOLOAD; $opcode =~ s/.*:://;
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my $arg = pop;
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$arg = "\$$arg" if ($arg*1 eq $arg);
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$code .= "\t$opcode\t".join(',',$arg,reverse @_)."\n";
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}
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{ my $N;
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sub loop() {
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my $inp = shift;
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$N++;
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$code.=<<___;
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xor $nlo,$nlo
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xor $nhi,$nhi
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mov `&LB("$Zlo")`,`&LB("$nlo")`
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mov `&LB("$Zlo")`,`&LB("$nhi")`
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shl \$4,`&LB("$nlo")`
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mov \$14,$cnt
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mov 8($Htbl,$nlo),$Zlo
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mov ($Htbl,$nlo),$Zhi
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and \$0xf0,`&LB("$nhi")`
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mov $Zlo,$rem
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jmp .Loop$N
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.align 16
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.Loop$N:
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shr \$4,$Zlo
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and \$0xf,$rem
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mov $Zhi,$tmp
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mov ($inp,$cnt),`&LB("$nlo")`
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shr \$4,$Zhi
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xor 8($Htbl,$nhi),$Zlo
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shl \$60,$tmp
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xor ($Htbl,$nhi),$Zhi
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mov `&LB("$nlo")`,`&LB("$nhi")`
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xor ($rem_4bit,$rem,8),$Zhi
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mov $Zlo,$rem
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shl \$4,`&LB("$nlo")`
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xor $tmp,$Zlo
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dec $cnt
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js .Lbreak$N
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shr \$4,$Zlo
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and \$0xf,$rem
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mov $Zhi,$tmp
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shr \$4,$Zhi
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xor 8($Htbl,$nlo),$Zlo
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shl \$60,$tmp
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xor ($Htbl,$nlo),$Zhi
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and \$0xf0,`&LB("$nhi")`
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xor ($rem_4bit,$rem,8),$Zhi
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mov $Zlo,$rem
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xor $tmp,$Zlo
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jmp .Loop$N
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.align 16
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.Lbreak$N:
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shr \$4,$Zlo
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and \$0xf,$rem
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mov $Zhi,$tmp
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shr \$4,$Zhi
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xor 8($Htbl,$nlo),$Zlo
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shl \$60,$tmp
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xor ($Htbl,$nlo),$Zhi
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and \$0xf0,`&LB("$nhi")`
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xor ($rem_4bit,$rem,8),$Zhi
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mov $Zlo,$rem
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xor $tmp,$Zlo
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shr \$4,$Zlo
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and \$0xf,$rem
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mov $Zhi,$tmp
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shr \$4,$Zhi
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xor 8($Htbl,$nhi),$Zlo
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shl \$60,$tmp
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xor ($Htbl,$nhi),$Zhi
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xor $tmp,$Zlo
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xor ($rem_4bit,$rem,8),$Zhi
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bswap $Zlo
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bswap $Zhi
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___
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}}
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$code=<<___;
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.text
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.globl gcm_gmult_4bit
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.type gcm_gmult_4bit,\@function,2
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.align 16
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gcm_gmult_4bit:
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push %rbx
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push %rbp # %rbp and %r12 are pushed exclusively in
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push %r12 # order to reuse Win64 exception handler...
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.Lgmult_prologue:
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movzb 15($Xi),$Zlo
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lea .Lrem_4bit(%rip),$rem_4bit
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___
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&loop ($Xi);
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$code.=<<___;
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mov $Zlo,8($Xi)
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mov $Zhi,($Xi)
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mov 16(%rsp),%rbx
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lea 24(%rsp),%rsp
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.Lgmult_epilogue:
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ret
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.size gcm_gmult_4bit,.-gcm_gmult_4bit
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___
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# per-function register layout
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$inp="%rdx";
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$len="%rcx";
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$rem_8bit=$rem_4bit;
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$code.=<<___;
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.globl gcm_ghash_4bit
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.type gcm_ghash_4bit,\@function,4
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.align 16
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gcm_ghash_4bit:
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push %rbx
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push %rbp
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push %r12
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push %r13
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push %r14
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push %r15
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sub \$280,%rsp
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.Lghash_prologue:
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mov $inp,%r14 # reassign couple of args
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mov $len,%r15
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___
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{ my $inp="%r14";
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my $dat="%edx";
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my $len="%r15";
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my @nhi=("%ebx","%ecx");
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my @rem=("%r12","%r13");
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my $Hshr4="%rbp";
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&sub ($Htbl,-128); # size optimization
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&lea ($Hshr4,"16+128(%rsp)");
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{ my @lo =($nlo,$nhi);
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my @hi =($Zlo,$Zhi);
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&xor ($dat,$dat);
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for ($i=0,$j=-2;$i<18;$i++,$j++) {
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&mov ("$j(%rsp)",&LB($dat)) if ($i>1);
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&or ($lo[0],$tmp) if ($i>1);
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&mov (&LB($dat),&LB($lo[1])) if ($i>0 && $i<17);
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&shr ($lo[1],4) if ($i>0 && $i<17);
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&mov ($tmp,$hi[1]) if ($i>0 && $i<17);
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&shr ($hi[1],4) if ($i>0 && $i<17);
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&mov ("8*$j($Hshr4)",$hi[0]) if ($i>1);
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&mov ($hi[0],"16*$i+0-128($Htbl)") if ($i<16);
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&shl (&LB($dat),4) if ($i>0 && $i<17);
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&mov ("8*$j-128($Hshr4)",$lo[0]) if ($i>1);
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&mov ($lo[0],"16*$i+8-128($Htbl)") if ($i<16);
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&shl ($tmp,60) if ($i>0 && $i<17);
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push (@lo,shift(@lo));
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push (@hi,shift(@hi));
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}
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}
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&add ($Htbl,-128);
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&mov ($Zlo,"8($Xi)");
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&mov ($Zhi,"0($Xi)");
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&add ($len,$inp); # pointer to the end of data
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&lea ($rem_8bit,".Lrem_8bit(%rip)");
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&jmp (".Louter_loop");
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$code.=".align 16\n.Louter_loop:\n";
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&xor ($Zhi,"($inp)");
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&mov ("%rdx","8($inp)");
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&lea ($inp,"16($inp)");
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&xor ("%rdx",$Zlo);
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&mov ("($Xi)",$Zhi);
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&mov ("8($Xi)","%rdx");
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&shr ("%rdx",32);
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&xor ($nlo,$nlo);
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&rol ($dat,8);
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&mov (&LB($nlo),&LB($dat));
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&movz ($nhi[0],&LB($dat));
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&shl (&LB($nlo),4);
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&shr ($nhi[0],4);
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for ($j=11,$i=0;$i<15;$i++) {
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&rol ($dat,8);
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&xor ($Zlo,"8($Htbl,$nlo)") if ($i>0);
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&xor ($Zhi,"($Htbl,$nlo)") if ($i>0);
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&mov ($Zlo,"8($Htbl,$nlo)") if ($i==0);
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&mov ($Zhi,"($Htbl,$nlo)") if ($i==0);
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&mov (&LB($nlo),&LB($dat));
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&xor ($Zlo,$tmp) if ($i>0);
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&movzw ($rem[1],"($rem_8bit,$rem[1],2)") if ($i>0);
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&movz ($nhi[1],&LB($dat));
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&shl (&LB($nlo),4);
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&movzb ($rem[0],"(%rsp,$nhi[0])");
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&shr ($nhi[1],4) if ($i<14);
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&and ($nhi[1],0xf0) if ($i==14);
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&shl ($rem[1],48) if ($i>0);
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&xor ($rem[0],$Zlo);
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&mov ($tmp,$Zhi);
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&xor ($Zhi,$rem[1]) if ($i>0);
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&shr ($Zlo,8);
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&movz ($rem[0],&LB($rem[0]));
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&mov ($dat,"$j($Xi)") if (--$j%4==0);
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&shr ($Zhi,8);
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&xor ($Zlo,"-128($Hshr4,$nhi[0],8)");
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&shl ($tmp,56);
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&xor ($Zhi,"($Hshr4,$nhi[0],8)");
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unshift (@nhi,pop(@nhi)); # "rotate" registers
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unshift (@rem,pop(@rem));
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}
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&movzw ($rem[1],"($rem_8bit,$rem[1],2)");
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&xor ($Zlo,"8($Htbl,$nlo)");
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&xor ($Zhi,"($Htbl,$nlo)");
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&shl ($rem[1],48);
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&xor ($Zlo,$tmp);
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&xor ($Zhi,$rem[1]);
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&movz ($rem[0],&LB($Zlo));
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&shr ($Zlo,4);
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&mov ($tmp,$Zhi);
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&shl (&LB($rem[0]),4);
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&shr ($Zhi,4);
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&xor ($Zlo,"8($Htbl,$nhi[0])");
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&movzw ($rem[0],"($rem_8bit,$rem[0],2)");
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&shl ($tmp,60);
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&xor ($Zhi,"($Htbl,$nhi[0])");
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&xor ($Zlo,$tmp);
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&shl ($rem[0],48);
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&bswap ($Zlo);
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&xor ($Zhi,$rem[0]);
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&bswap ($Zhi);
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&cmp ($inp,$len);
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&jb (".Louter_loop");
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}
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$code.=<<___;
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mov $Zlo,8($Xi)
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mov $Zhi,($Xi)
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lea 280(%rsp),%rsi
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mov 0(%rsi),%r15
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mov 8(%rsi),%r14
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mov 16(%rsi),%r13
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mov 24(%rsi),%r12
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mov 32(%rsi),%rbp
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mov 40(%rsi),%rbx
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lea 48(%rsi),%rsp
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|
|
.Lghash_epilogue:
|
|||
|
|
ret
|
|||
|
|
.size gcm_ghash_4bit,.-gcm_ghash_4bit
|
|||
|
|
___
|
|||
|
|
|
|||
|
|
######################################################################
|
|||
|
|
# PCLMULQDQ version.
|
|||
|
|
|
|||
|
|
@_4args=$win64? ("%rcx","%rdx","%r8", "%r9") : # Win64 order
|
|||
|
|
("%rdi","%rsi","%rdx","%rcx"); # Unix order
|
|||
|
|
|
|||
|
|
($Xi,$Xhi)=("%xmm0","%xmm1"); $Hkey="%xmm2";
|
|||
|
|
($T1,$T2,$T3)=("%xmm3","%xmm4","%xmm5");
|
|||
|
|
|
|||
|
|
sub clmul64x64_T2 { # minimal register pressure
|
|||
|
|
my ($Xhi,$Xi,$Hkey,$modulo)=@_;
|
|||
|
|
|
|||
|
|
$code.=<<___ if (!defined($modulo));
|
|||
|
|
movdqa $Xi,$Xhi #
|
|||
|
|
pshufd \$0b01001110,$Xi,$T1
|
|||
|
|
pshufd \$0b01001110,$Hkey,$T2
|
|||
|
|
pxor $Xi,$T1 #
|
|||
|
|
pxor $Hkey,$T2
|
|||
|
|
___
|
|||
|
|
$code.=<<___;
|
|||
|
|
pclmulqdq \$0x00,$Hkey,$Xi #######
|
|||
|
|
pclmulqdq \$0x11,$Hkey,$Xhi #######
|
|||
|
|
pclmulqdq \$0x00,$T2,$T1 #######
|
|||
|
|
pxor $Xi,$T1 #
|
|||
|
|
pxor $Xhi,$T1 #
|
|||
|
|
|
|||
|
|
movdqa $T1,$T2 #
|
|||
|
|
psrldq \$8,$T1
|
|||
|
|
pslldq \$8,$T2 #
|
|||
|
|
pxor $T1,$Xhi
|
|||
|
|
pxor $T2,$Xi #
|
|||
|
|
___
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
sub reduction_alg9 { # 17/13 times faster than Intel version
|
|||
|
|
my ($Xhi,$Xi) = @_;
|
|||
|
|
|
|||
|
|
$code.=<<___;
|
|||
|
|
# 1st phase
|
|||
|
|
movdqa $Xi,$T1 #
|
|||
|
|
psllq \$1,$Xi
|
|||
|
|
pxor $T1,$Xi #
|
|||
|
|
psllq \$5,$Xi #
|
|||
|
|
pxor $T1,$Xi #
|
|||
|
|
psllq \$57,$Xi #
|
|||
|
|
movdqa $Xi,$T2 #
|
|||
|
|
pslldq \$8,$Xi
|
|||
|
|
psrldq \$8,$T2 #
|
|||
|
|
pxor $T1,$Xi
|
|||
|
|
pxor $T2,$Xhi #
|
|||
|
|
|
|||
|
|
# 2nd phase
|
|||
|
|
movdqa $Xi,$T2
|
|||
|
|
psrlq \$5,$Xi
|
|||
|
|
pxor $T2,$Xi #
|
|||
|
|
psrlq \$1,$Xi #
|
|||
|
|
pxor $T2,$Xi #
|
|||
|
|
pxor $Xhi,$T2
|
|||
|
|
psrlq \$1,$Xi #
|
|||
|
|
pxor $T2,$Xi #
|
|||
|
|
___
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
{ my ($Htbl,$Xip)=@_4args;
|
|||
|
|
|
|||
|
|
$code.=<<___;
|
|||
|
|
.globl gcm_init_clmul
|
|||
|
|
.type gcm_init_clmul,\@abi-omnipotent
|
|||
|
|
.align 16
|
|||
|
|
gcm_init_clmul:
|
|||
|
|
movdqu ($Xip),$Hkey
|
|||
|
|
pshufd \$0b01001110,$Hkey,$Hkey # dword swap
|
|||
|
|
|
|||
|
|
# <<1 twist
|
|||
|
|
pshufd \$0b11111111,$Hkey,$T2 # broadcast uppermost dword
|
|||
|
|
movdqa $Hkey,$T1
|
|||
|
|
psllq \$1,$Hkey
|
|||
|
|
pxor $T3,$T3 #
|
|||
|
|
psrlq \$63,$T1
|
|||
|
|
pcmpgtd $T2,$T3 # broadcast carry bit
|
|||
|
|
pslldq \$8,$T1
|
|||
|
|
por $T1,$Hkey # H<<=1
|
|||
|
|
|
|||
|
|
# magic reduction
|
|||
|
|
pand .L0x1c2_polynomial(%rip),$T3
|
|||
|
|
pxor $T3,$Hkey # if(carry) H^=0x1c2_polynomial
|
|||
|
|
|
|||
|
|
# calculate H^2
|
|||
|
|
movdqa $Hkey,$Xi
|
|||
|
|
___
|
|||
|
|
&clmul64x64_T2 ($Xhi,$Xi,$Hkey);
|
|||
|
|
&reduction_alg9 ($Xhi,$Xi);
|
|||
|
|
$code.=<<___;
|
|||
|
|
movdqu $Hkey,($Htbl) # save H
|
|||
|
|
movdqu $Xi,16($Htbl) # save H^2
|
|||
|
|
ret
|
|||
|
|
.size gcm_init_clmul,.-gcm_init_clmul
|
|||
|
|
___
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
{ my ($Xip,$Htbl)=@_4args;
|
|||
|
|
|
|||
|
|
$code.=<<___;
|
|||
|
|
.globl gcm_gmult_clmul
|
|||
|
|
.type gcm_gmult_clmul,\@abi-omnipotent
|
|||
|
|
.align 16
|
|||
|
|
gcm_gmult_clmul:
|
|||
|
|
movdqu ($Xip),$Xi
|
|||
|
|
movdqa .Lbswap_mask(%rip),$T3
|
|||
|
|
movdqu ($Htbl),$Hkey
|
|||
|
|
pshufb $T3,$Xi
|
|||
|
|
___
|
|||
|
|
&clmul64x64_T2 ($Xhi,$Xi,$Hkey);
|
|||
|
|
&reduction_alg9 ($Xhi,$Xi);
|
|||
|
|
$code.=<<___;
|
|||
|
|
pshufb $T3,$Xi
|
|||
|
|
movdqu $Xi,($Xip)
|
|||
|
|
ret
|
|||
|
|
.size gcm_gmult_clmul,.-gcm_gmult_clmul
|
|||
|
|
___
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
{ my ($Xip,$Htbl,$inp,$len)=@_4args;
|
|||
|
|
my $Xn="%xmm6";
|
|||
|
|
my $Xhn="%xmm7";
|
|||
|
|
my $Hkey2="%xmm8";
|
|||
|
|
my $T1n="%xmm9";
|
|||
|
|
my $T2n="%xmm10";
|
|||
|
|
|
|||
|
|
$code.=<<___;
|
|||
|
|
.globl gcm_ghash_clmul
|
|||
|
|
.type gcm_ghash_clmul,\@abi-omnipotent
|
|||
|
|
.align 16
|
|||
|
|
gcm_ghash_clmul:
|
|||
|
|
___
|
|||
|
|
$code.=<<___ if ($win64);
|
|||
|
|
.LSEH_begin_gcm_ghash_clmul:
|
|||
|
|
# I can't trust assembler to use specific encoding:-(
|
|||
|
|
.byte 0x48,0x83,0xec,0x58 #sub \$0x58,%rsp
|
|||
|
|
.byte 0x0f,0x29,0x34,0x24 #movaps %xmm6,(%rsp)
|
|||
|
|
.byte 0x0f,0x29,0x7c,0x24,0x10 #movdqa %xmm7,0x10(%rsp)
|
|||
|
|
.byte 0x44,0x0f,0x29,0x44,0x24,0x20 #movaps %xmm8,0x20(%rsp)
|
|||
|
|
.byte 0x44,0x0f,0x29,0x4c,0x24,0x30 #movaps %xmm9,0x30(%rsp)
|
|||
|
|
.byte 0x44,0x0f,0x29,0x54,0x24,0x40 #movaps %xmm10,0x40(%rsp)
|
|||
|
|
___
|
|||
|
|
$code.=<<___;
|
|||
|
|
movdqa .Lbswap_mask(%rip),$T3
|
|||
|
|
|
|||
|
|
movdqu ($Xip),$Xi
|
|||
|
|
movdqu ($Htbl),$Hkey
|
|||
|
|
pshufb $T3,$Xi
|
|||
|
|
|
|||
|
|
sub \$0x10,$len
|
|||
|
|
jz .Lodd_tail
|
|||
|
|
|
|||
|
|
movdqu 16($Htbl),$Hkey2
|
|||
|
|
#######
|
|||
|
|
# Xi+2 =[H*(Ii+1 + Xi+1)] mod P =
|
|||
|
|
# [(H*Ii+1) + (H*Xi+1)] mod P =
|
|||
|
|
# [(H*Ii+1) + H^2*(Ii+Xi)] mod P
|
|||
|
|
#
|
|||
|
|
movdqu ($inp),$T1 # Ii
|
|||
|
|
movdqu 16($inp),$Xn # Ii+1
|
|||
|
|
pshufb $T3,$T1
|
|||
|
|
pshufb $T3,$Xn
|
|||
|
|
pxor $T1,$Xi # Ii+Xi
|
|||
|
|
___
|
|||
|
|
&clmul64x64_T2 ($Xhn,$Xn,$Hkey); # H*Ii+1
|
|||
|
|
$code.=<<___;
|
|||
|
|
movdqa $Xi,$Xhi #
|
|||
|
|
pshufd \$0b01001110,$Xi,$T1
|
|||
|
|
pshufd \$0b01001110,$Hkey2,$T2
|
|||
|
|
pxor $Xi,$T1 #
|
|||
|
|
pxor $Hkey2,$T2
|
|||
|
|
|
|||
|
|
lea 32($inp),$inp # i+=2
|
|||
|
|
sub \$0x20,$len
|
|||
|
|
jbe .Leven_tail
|
|||
|
|
|
|||
|
|
.Lmod_loop:
|
|||
|
|
___
|
|||
|
|
&clmul64x64_T2 ($Xhi,$Xi,$Hkey2,1); # H^2*(Ii+Xi)
|
|||
|
|
$code.=<<___;
|
|||
|
|
movdqu ($inp),$T1 # Ii
|
|||
|
|
pxor $Xn,$Xi # (H*Ii+1) + H^2*(Ii+Xi)
|
|||
|
|
pxor $Xhn,$Xhi
|
|||
|
|
|
|||
|
|
movdqu 16($inp),$Xn # Ii+1
|
|||
|
|
pshufb $T3,$T1
|
|||
|
|
pshufb $T3,$Xn
|
|||
|
|
|
|||
|
|
movdqa $Xn,$Xhn #
|
|||
|
|
pshufd \$0b01001110,$Xn,$T1n
|
|||
|
|
pshufd \$0b01001110,$Hkey,$T2n
|
|||
|
|
pxor $Xn,$T1n #
|
|||
|
|
pxor $Hkey,$T2n
|
|||
|
|
pxor $T1,$Xhi # "Ii+Xi", consume early
|
|||
|
|
|
|||
|
|
movdqa $Xi,$T1 # 1st phase
|
|||
|
|
psllq \$1,$Xi
|
|||
|
|
pxor $T1,$Xi #
|
|||
|
|
psllq \$5,$Xi #
|
|||
|
|
pxor $T1,$Xi #
|
|||
|
|
pclmulqdq \$0x00,$Hkey,$Xn #######
|
|||
|
|
psllq \$57,$Xi #
|
|||
|
|
movdqa $Xi,$T2 #
|
|||
|
|
pslldq \$8,$Xi
|
|||
|
|
psrldq \$8,$T2 #
|
|||
|
|
pxor $T1,$Xi
|
|||
|
|
pxor $T2,$Xhi #
|
|||
|
|
|
|||
|
|
pclmulqdq \$0x11,$Hkey,$Xhn #######
|
|||
|
|
movdqa $Xi,$T2 # 2nd phase
|
|||
|
|
psrlq \$5,$Xi
|
|||
|
|
pxor $T2,$Xi #
|
|||
|
|
psrlq \$1,$Xi #
|
|||
|
|
pxor $T2,$Xi #
|
|||
|
|
pxor $Xhi,$T2
|
|||
|
|
psrlq \$1,$Xi #
|
|||
|
|
pxor $T2,$Xi #
|
|||
|
|
|
|||
|
|
pclmulqdq \$0x00,$T2n,$T1n #######
|
|||
|
|
movdqa $Xi,$Xhi #
|
|||
|
|
pshufd \$0b01001110,$Xi,$T1
|
|||
|
|
pshufd \$0b01001110,$Hkey2,$T2
|
|||
|
|
pxor $Xi,$T1 #
|
|||
|
|
pxor $Hkey2,$T2
|
|||
|
|
|
|||
|
|
pxor $Xn,$T1n #
|
|||
|
|
pxor $Xhn,$T1n #
|
|||
|
|
movdqa $T1n,$T2n #
|
|||
|
|
psrldq \$8,$T1n
|
|||
|
|
pslldq \$8,$T2n #
|
|||
|
|
pxor $T1n,$Xhn
|
|||
|
|
pxor $T2n,$Xn #
|
|||
|
|
|
|||
|
|
lea 32($inp),$inp
|
|||
|
|
sub \$0x20,$len
|
|||
|
|
ja .Lmod_loop
|
|||
|
|
|
|||
|
|
.Leven_tail:
|
|||
|
|
___
|
|||
|
|
&clmul64x64_T2 ($Xhi,$Xi,$Hkey2,1); # H^2*(Ii+Xi)
|
|||
|
|
$code.=<<___;
|
|||
|
|
pxor $Xn,$Xi # (H*Ii+1) + H^2*(Ii+Xi)
|
|||
|
|
pxor $Xhn,$Xhi
|
|||
|
|
___
|
|||
|
|
&reduction_alg9 ($Xhi,$Xi);
|
|||
|
|
$code.=<<___;
|
|||
|
|
test $len,$len
|
|||
|
|
jnz .Ldone
|
|||
|
|
|
|||
|
|
.Lodd_tail:
|
|||
|
|
movdqu ($inp),$T1 # Ii
|
|||
|
|
pshufb $T3,$T1
|
|||
|
|
pxor $T1,$Xi # Ii+Xi
|
|||
|
|
___
|
|||
|
|
&clmul64x64_T2 ($Xhi,$Xi,$Hkey); # H*(Ii+Xi)
|
|||
|
|
&reduction_alg9 ($Xhi,$Xi);
|
|||
|
|
$code.=<<___;
|
|||
|
|
.Ldone:
|
|||
|
|
pshufb $T3,$Xi
|
|||
|
|
movdqu $Xi,($Xip)
|
|||
|
|
___
|
|||
|
|
$code.=<<___ if ($win64);
|
|||
|
|
movaps (%rsp),%xmm6
|
|||
|
|
movaps 0x10(%rsp),%xmm7
|
|||
|
|
movaps 0x20(%rsp),%xmm8
|
|||
|
|
movaps 0x30(%rsp),%xmm9
|
|||
|
|
movaps 0x40(%rsp),%xmm10
|
|||
|
|
add \$0x58,%rsp
|
|||
|
|
___
|
|||
|
|
$code.=<<___;
|
|||
|
|
ret
|
|||
|
|
.LSEH_end_gcm_ghash_clmul:
|
|||
|
|
.size gcm_ghash_clmul,.-gcm_ghash_clmul
|
|||
|
|
___
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
$code.=<<___;
|
|||
|
|
.align 64
|
|||
|
|
.Lbswap_mask:
|
|||
|
|
.byte 15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0
|
|||
|
|
.L0x1c2_polynomial:
|
|||
|
|
.byte 1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0xc2
|
|||
|
|
.align 64
|
|||
|
|
.type .Lrem_4bit,\@object
|
|||
|
|
.Lrem_4bit:
|
|||
|
|
.long 0,`0x0000<<16`,0,`0x1C20<<16`,0,`0x3840<<16`,0,`0x2460<<16`
|
|||
|
|
.long 0,`0x7080<<16`,0,`0x6CA0<<16`,0,`0x48C0<<16`,0,`0x54E0<<16`
|
|||
|
|
.long 0,`0xE100<<16`,0,`0xFD20<<16`,0,`0xD940<<16`,0,`0xC560<<16`
|
|||
|
|
.long 0,`0x9180<<16`,0,`0x8DA0<<16`,0,`0xA9C0<<16`,0,`0xB5E0<<16`
|
|||
|
|
.type .Lrem_8bit,\@object
|
|||
|
|
.Lrem_8bit:
|
|||
|
|
.value 0x0000,0x01C2,0x0384,0x0246,0x0708,0x06CA,0x048C,0x054E
|
|||
|
|
.value 0x0E10,0x0FD2,0x0D94,0x0C56,0x0918,0x08DA,0x0A9C,0x0B5E
|
|||
|
|
.value 0x1C20,0x1DE2,0x1FA4,0x1E66,0x1B28,0x1AEA,0x18AC,0x196E
|
|||
|
|
.value 0x1230,0x13F2,0x11B4,0x1076,0x1538,0x14FA,0x16BC,0x177E
|
|||
|
|
.value 0x3840,0x3982,0x3BC4,0x3A06,0x3F48,0x3E8A,0x3CCC,0x3D0E
|
|||
|
|
.value 0x3650,0x3792,0x35D4,0x3416,0x3158,0x309A,0x32DC,0x331E
|
|||
|
|
.value 0x2460,0x25A2,0x27E4,0x2626,0x2368,0x22AA,0x20EC,0x212E
|
|||
|
|
.value 0x2A70,0x2BB2,0x29F4,0x2836,0x2D78,0x2CBA,0x2EFC,0x2F3E
|
|||
|
|
.value 0x7080,0x7142,0x7304,0x72C6,0x7788,0x764A,0x740C,0x75CE
|
|||
|
|
.value 0x7E90,0x7F52,0x7D14,0x7CD6,0x7998,0x785A,0x7A1C,0x7BDE
|
|||
|
|
.value 0x6CA0,0x6D62,0x6F24,0x6EE6,0x6BA8,0x6A6A,0x682C,0x69EE
|
|||
|
|
.value 0x62B0,0x6372,0x6134,0x60F6,0x65B8,0x647A,0x663C,0x67FE
|
|||
|
|
.value 0x48C0,0x4902,0x4B44,0x4A86,0x4FC8,0x4E0A,0x4C4C,0x4D8E
|
|||
|
|
.value 0x46D0,0x4712,0x4554,0x4496,0x41D8,0x401A,0x425C,0x439E
|
|||
|
|
.value 0x54E0,0x5522,0x5764,0x56A6,0x53E8,0x522A,0x506C,0x51AE
|
|||
|
|
.value 0x5AF0,0x5B32,0x5974,0x58B6,0x5DF8,0x5C3A,0x5E7C,0x5FBE
|
|||
|
|
.value 0xE100,0xE0C2,0xE284,0xE346,0xE608,0xE7CA,0xE58C,0xE44E
|
|||
|
|
.value 0xEF10,0xEED2,0xEC94,0xED56,0xE818,0xE9DA,0xEB9C,0xEA5E
|
|||
|
|
.value 0xFD20,0xFCE2,0xFEA4,0xFF66,0xFA28,0xFBEA,0xF9AC,0xF86E
|
|||
|
|
.value 0xF330,0xF2F2,0xF0B4,0xF176,0xF438,0xF5FA,0xF7BC,0xF67E
|
|||
|
|
.value 0xD940,0xD882,0xDAC4,0xDB06,0xDE48,0xDF8A,0xDDCC,0xDC0E
|
|||
|
|
.value 0xD750,0xD692,0xD4D4,0xD516,0xD058,0xD19A,0xD3DC,0xD21E
|
|||
|
|
.value 0xC560,0xC4A2,0xC6E4,0xC726,0xC268,0xC3AA,0xC1EC,0xC02E
|
|||
|
|
.value 0xCB70,0xCAB2,0xC8F4,0xC936,0xCC78,0xCDBA,0xCFFC,0xCE3E
|
|||
|
|
.value 0x9180,0x9042,0x9204,0x93C6,0x9688,0x974A,0x950C,0x94CE
|
|||
|
|
.value 0x9F90,0x9E52,0x9C14,0x9DD6,0x9898,0x995A,0x9B1C,0x9ADE
|
|||
|
|
.value 0x8DA0,0x8C62,0x8E24,0x8FE6,0x8AA8,0x8B6A,0x892C,0x88EE
|
|||
|
|
.value 0x83B0,0x8272,0x8034,0x81F6,0x84B8,0x857A,0x873C,0x86FE
|
|||
|
|
.value 0xA9C0,0xA802,0xAA44,0xAB86,0xAEC8,0xAF0A,0xAD4C,0xAC8E
|
|||
|
|
.value 0xA7D0,0xA612,0xA454,0xA596,0xA0D8,0xA11A,0xA35C,0xA29E
|
|||
|
|
.value 0xB5E0,0xB422,0xB664,0xB7A6,0xB2E8,0xB32A,0xB16C,0xB0AE
|
|||
|
|
.value 0xBBF0,0xBA32,0xB874,0xB9B6,0xBCF8,0xBD3A,0xBF7C,0xBEBE
|
|||
|
|
|
|||
|
|
.asciz "GHASH for x86_64, CRYPTOGAMS by <appro\@openssl.org>"
|
|||
|
|
.align 64
|
|||
|
|
___
|
|||
|
|
|
|||
|
|
# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
|
|||
|
|
# CONTEXT *context,DISPATCHER_CONTEXT *disp)
|
|||
|
|
if ($win64) {
|
|||
|
|
$rec="%rcx";
|
|||
|
|
$frame="%rdx";
|
|||
|
|
$context="%r8";
|
|||
|
|
$disp="%r9";
|
|||
|
|
|
|||
|
|
$code.=<<___;
|
|||
|
|
.extern __imp_RtlVirtualUnwind
|
|||
|
|
.type se_handler,\@abi-omnipotent
|
|||
|
|
.align 16
|
|||
|
|
se_handler:
|
|||
|
|
push %rsi
|
|||
|
|
push %rdi
|
|||
|
|
push %rbx
|
|||
|
|
push %rbp
|
|||
|
|
push %r12
|
|||
|
|
push %r13
|
|||
|
|
push %r14
|
|||
|
|
push %r15
|
|||
|
|
pushfq
|
|||
|
|
sub \$64,%rsp
|
|||
|
|
|
|||
|
|
mov 120($context),%rax # pull context->Rax
|
|||
|
|
mov 248($context),%rbx # pull context->Rip
|
|||
|
|
|
|||
|
|
mov 8($disp),%rsi # disp->ImageBase
|
|||
|
|
mov 56($disp),%r11 # disp->HandlerData
|
|||
|
|
|
|||
|
|
mov 0(%r11),%r10d # HandlerData[0]
|
|||
|
|
lea (%rsi,%r10),%r10 # prologue label
|
|||
|
|
cmp %r10,%rbx # context->Rip<prologue label
|
|||
|
|
jb .Lin_prologue
|
|||
|
|
|
|||
|
|
mov 152($context),%rax # pull context->Rsp
|
|||
|
|
|
|||
|
|
mov 4(%r11),%r10d # HandlerData[1]
|
|||
|
|
lea (%rsi,%r10),%r10 # epilogue label
|
|||
|
|
cmp %r10,%rbx # context->Rip>=epilogue label
|
|||
|
|
jae .Lin_prologue
|
|||
|
|
|
|||
|
|
lea 24(%rax),%rax # adjust "rsp"
|
|||
|
|
|
|||
|
|
mov -8(%rax),%rbx
|
|||
|
|
mov -16(%rax),%rbp
|
|||
|
|
mov -24(%rax),%r12
|
|||
|
|
mov %rbx,144($context) # restore context->Rbx
|
|||
|
|
mov %rbp,160($context) # restore context->Rbp
|
|||
|
|
mov %r12,216($context) # restore context->R12
|
|||
|
|
|
|||
|
|
.Lin_prologue:
|
|||
|
|
mov 8(%rax),%rdi
|
|||
|
|
mov 16(%rax),%rsi
|
|||
|
|
mov %rax,152($context) # restore context->Rsp
|
|||
|
|
mov %rsi,168($context) # restore context->Rsi
|
|||
|
|
mov %rdi,176($context) # restore context->Rdi
|
|||
|
|
|
|||
|
|
mov 40($disp),%rdi # disp->ContextRecord
|
|||
|
|
mov $context,%rsi # context
|
|||
|
|
mov \$`1232/8`,%ecx # sizeof(CONTEXT)
|
|||
|
|
.long 0xa548f3fc # cld; rep movsq
|
|||
|
|
|
|||
|
|
mov $disp,%rsi
|
|||
|
|
xor %rcx,%rcx # arg1, UNW_FLAG_NHANDLER
|
|||
|
|
mov 8(%rsi),%rdx # arg2, disp->ImageBase
|
|||
|
|
mov 0(%rsi),%r8 # arg3, disp->ControlPc
|
|||
|
|
mov 16(%rsi),%r9 # arg4, disp->FunctionEntry
|
|||
|
|
mov 40(%rsi),%r10 # disp->ContextRecord
|
|||
|
|
lea 56(%rsi),%r11 # &disp->HandlerData
|
|||
|
|
lea 24(%rsi),%r12 # &disp->EstablisherFrame
|
|||
|
|
mov %r10,32(%rsp) # arg5
|
|||
|
|
mov %r11,40(%rsp) # arg6
|
|||
|
|
mov %r12,48(%rsp) # arg7
|
|||
|
|
mov %rcx,56(%rsp) # arg8, (NULL)
|
|||
|
|
call *__imp_RtlVirtualUnwind(%rip)
|
|||
|
|
|
|||
|
|
mov \$1,%eax # ExceptionContinueSearch
|
|||
|
|
add \$64,%rsp
|
|||
|
|
popfq
|
|||
|
|
pop %r15
|
|||
|
|
pop %r14
|
|||
|
|
pop %r13
|
|||
|
|
pop %r12
|
|||
|
|
pop %rbp
|
|||
|
|
pop %rbx
|
|||
|
|
pop %rdi
|
|||
|
|
pop %rsi
|
|||
|
|
ret
|
|||
|
|
.size se_handler,.-se_handler
|
|||
|
|
|
|||
|
|
.section .pdata
|
|||
|
|
.align 4
|
|||
|
|
.rva .LSEH_begin_gcm_gmult_4bit
|
|||
|
|
.rva .LSEH_end_gcm_gmult_4bit
|
|||
|
|
.rva .LSEH_info_gcm_gmult_4bit
|
|||
|
|
|
|||
|
|
.rva .LSEH_begin_gcm_ghash_4bit
|
|||
|
|
.rva .LSEH_end_gcm_ghash_4bit
|
|||
|
|
.rva .LSEH_info_gcm_ghash_4bit
|
|||
|
|
|
|||
|
|
.rva .LSEH_begin_gcm_ghash_clmul
|
|||
|
|
.rva .LSEH_end_gcm_ghash_clmul
|
|||
|
|
.rva .LSEH_info_gcm_ghash_clmul
|
|||
|
|
|
|||
|
|
.section .xdata
|
|||
|
|
.align 8
|
|||
|
|
.LSEH_info_gcm_gmult_4bit:
|
|||
|
|
.byte 9,0,0,0
|
|||
|
|
.rva se_handler
|
|||
|
|
.rva .Lgmult_prologue,.Lgmult_epilogue # HandlerData
|
|||
|
|
.LSEH_info_gcm_ghash_4bit:
|
|||
|
|
.byte 9,0,0,0
|
|||
|
|
.rva se_handler
|
|||
|
|
.rva .Lghash_prologue,.Lghash_epilogue # HandlerData
|
|||
|
|
.LSEH_info_gcm_ghash_clmul:
|
|||
|
|
.byte 0x01,0x1f,0x0b,0x00
|
|||
|
|
.byte 0x1f,0xa8,0x04,0x00 #movaps 0x40(rsp),xmm10
|
|||
|
|
.byte 0x19,0x98,0x03,0x00 #movaps 0x30(rsp),xmm9
|
|||
|
|
.byte 0x13,0x88,0x02,0x00 #movaps 0x20(rsp),xmm8
|
|||
|
|
.byte 0x0d,0x78,0x01,0x00 #movaps 0x10(rsp),xmm7
|
|||
|
|
.byte 0x08,0x68,0x00,0x00 #movaps (rsp),xmm6
|
|||
|
|
.byte 0x04,0xa2,0x00,0x00 #sub rsp,0x58
|
|||
|
|
___
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
$code =~ s/\`([^\`]*)\`/eval($1)/gem;
|
|||
|
|
|
|||
|
|
print $code;
|
|||
|
|
|
|||
|
|
close STDOUT;
|