Add ghash-armv4.pl.
This commit is contained in:
Andy Polyakov
parent
827f3d5f39
commit
8a682556b4
@ -134,7 +134,7 @@ my $sparcv8_asm=":sparcv8.o:des_enc-sparc.o fcrypt_b.o::::::::::::void";
|
||||
my $alpha_asm="alphacpuid.o:bn_asm.o alpha-mont.o:::::sha1-alpha.o:::::::ghash-alpha.o:void";
|
||||
my $mips3_asm=":bn-mips3.o:::::::::::::void";
|
||||
my $s390x_asm="s390xcap.o s390xcpuid.o:bn-s390x.o s390x-mont.o::aes_ctr.o aes-s390x.o:::sha1-s390x.o sha256-s390x.o sha512-s390x.o::rc4-s390x.o::::::void";
|
||||
my $armv4_asm=":bn_asm.o armv4-mont.o::aes_cbc.o aes_ctr.o aes-armv4.o:::sha1-armv4-large.o sha256-armv4.o sha512-armv4.o::::::::void";
|
||||
my $armv4_asm=":bn_asm.o armv4-mont.o::aes_cbc.o aes_ctr.o aes-armv4.o:::sha1-armv4-large.o sha256-armv4.o sha512-armv4.o:::::::ghash-armv4.o:void";
|
||||
my $parisc11_asm="pariscid.o:bn_asm.o parisc-mont.o::aes_core.o aes_cbc.o aes_ctr.o aes-parisc.o:::sha1-parisc.o sha256-parisc.o sha512-parisc.o::rc4-parisc.o:::::ghash-parisc.o:32";
|
||||
my $parisc20_asm="pariscid.o:pa-risc2W.o parisc-mont.o::aes_core.o aes_cbc.o aes_ctr.o aes-parisc.o:::sha1-parisc.o sha256-parisc.o sha512-parisc.o::rc4-parisc.o:::::ghash-parisc.o:64";
|
||||
my $ppc32_asm="ppccpuid.o ppccap.o:bn-ppc.o ppc-mont.o ppc64-mont.o::aes_core.o aes_cbc.o aes_ctr.o aes-ppc.o:::sha1-ppc.o sha256-ppc.o:::::::";
|
||||
|
||||
2
TABLE
2
TABLE
@ -3573,7 +3573,7 @@ $rmd160_obj =
|
||||
$rc5_obj =
|
||||
$wp_obj =
|
||||
$cmll_obj =
|
||||
$modes_obj =
|
||||
$modes_obj = ghash-armv4.o
|
||||
$perlasm_scheme = void
|
||||
$dso_scheme = dlfcn
|
||||
$shared_target= linux-shared
|
||||
|
||||
266
crypto/modes/asm/ghash-armv4.pl
Normal file
266
crypto/modes/asm/ghash-armv4.pl
Normal file
@ -0,0 +1,266 @@
|
||||
#!/usr/bin/env perl
|
||||
#
|
||||
# ====================================================================
|
||||
# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
|
||||
# project. The module is, however, dual licensed under OpenSSL and
|
||||
# CRYPTOGAMS licenses depending on where you obtain it. For further
|
||||
# details see http://www.openssl.org/~appro/cryptogams/.
|
||||
# ====================================================================
|
||||
#
|
||||
# April 2010
|
||||
#
|
||||
# The module implements "4-bit" GCM GHASH function and underlying
|
||||
# single multiplication operation in GF(2^128). "4-bit" means that it
|
||||
# uses 256 bytes per-key table [+32 bytes shared table]. There is no
|
||||
# experimental performance data available yet. The only approximation
|
||||
# that can be made at this point is based on code size. Inner loop is
|
||||
# 32 instructions long and on single-issue core should execute in <40
|
||||
# cycles. Having verified that gcc 3.4 didn't unroll corresponding
|
||||
# loop, this assembler loop body was found to be ~3x smaller than
|
||||
# compiler-generated one...
|
||||
#
|
||||
# Byte order [in]dependence. =========================================
|
||||
#
|
||||
# Caller is expected to maintain specific *dword* order in Htable,
|
||||
# namely with *least* significant dword of 128-bit value at *lower*
|
||||
# address. This differs completely from C code and has everything to
|
||||
# do with ldm instruction and order in which dwords are "consumed" by
|
||||
# algorithm. *Byte* order within these dwords in turn is whatever
|
||||
# *native* byte order on current platform. See gcm128.c for working
|
||||
# example...
|
||||
|
||||
$Xi="r0"; # argument block
|
||||
$Htbl="r1";
|
||||
$inp="r2";
|
||||
$len="r3";
|
||||
$Zll="r4"; # variables
|
||||
$Zlh="r5";
|
||||
$Zhl="r6";
|
||||
$Zhh="r7";
|
||||
$Tll="r8";
|
||||
$Tlh="r9";
|
||||
$Thl="r10";
|
||||
$Thh="r11";
|
||||
$nlo="r12";
|
||||
################# r13 is stack pointer
|
||||
$nhi="r14";
|
||||
################# r15 is program counter
|
||||
|
||||
$rem_4bit=$inp; # used in gcm_gmult_4bit
|
||||
$cnt=$len;
|
||||
|
||||
$output=shift;
|
||||
open STDOUT,">$output";
|
||||
|
||||
sub Zsmash() {
|
||||
my $i=12;
|
||||
my @args=@_;
|
||||
for ($Zll,$Zlh,$Zhl,$Zhh) {
|
||||
# can be reduced to single "str $_,[$Xi,$i]" on big-endian platforms
|
||||
$code.=<<___;
|
||||
mov $Tlh,$_,lsr#8
|
||||
strb $_,[$Xi,#$i+3]
|
||||
mov $Thl,$_,lsr#16
|
||||
strb $Tlh,[$Xi,#$i+2]
|
||||
mov $Thh,$_,lsr#24
|
||||
strb $Thl,[$Xi,#$i+1]
|
||||
strb $Thh,[$Xi,#$i]
|
||||
___
|
||||
$code.="\t".shift(@args)."\n";
|
||||
$i-=4;
|
||||
}
|
||||
}
|
||||
|
||||
$code=<<___;
|
||||
.text
|
||||
.code 32
|
||||
|
||||
.type rem_4bit,%object
|
||||
.align 5
|
||||
rem_4bit:
|
||||
.short 0x0000,0x1C20,0x3840,0x2460
|
||||
.short 0x7080,0x6CA0,0x48C0,0x54E0
|
||||
.short 0xE100,0xFD20,0xD940,0xC560
|
||||
.short 0x9180,0x8DA0,0xA9C0,0xB5E0
|
||||
.size rem_4bit,.-rem_4bit
|
||||
|
||||
.type rem_4bit_get,%function
|
||||
rem_4bit_get:
|
||||
sub $rem_4bit,pc,#8
|
||||
sub $rem_4bit,$rem_4bit,#32 @ &rem_4bit
|
||||
b .Lrem_4bit_got
|
||||
nop
|
||||
.size rem_4bit_get,.-rem_4bit_get
|
||||
|
||||
.global gcm_ghash_4bit
|
||||
.type gcm_ghash_4bit,%function
|
||||
gcm_ghash_4bit:
|
||||
sub r12,pc,#8
|
||||
add $len,$inp,$len @ $len to point at the end
|
||||
stmdb sp!,{r3-r11,lr} @ save $len/end too
|
||||
sub r12,r12,#48 @ &rem_4bit
|
||||
|
||||
ldmia r12,{r4-r11} @ copy rem_4bit ...
|
||||
stmdb sp!,{r4-r11} @ ... to stack
|
||||
|
||||
ldrb $nlo,[$inp,#15]
|
||||
ldrb $nhi,[$Xi,#15]
|
||||
.Louter:
|
||||
eor $nlo,$nlo,$nhi
|
||||
and $nhi,$nlo,#0xf0
|
||||
and $nlo,$nlo,#0x0f
|
||||
mov $cnt,#14
|
||||
|
||||
add $Zhh,$Htbl,$nlo,lsl#4
|
||||
ldmia $Zhh,{$Zll-$Zhh} @ load Htbl[nlo]
|
||||
ldrb $nlo,[$inp,#14]
|
||||
|
||||
add $Thh,$Htbl,$nhi
|
||||
and $nhi,$Zll,#0xf @ rem
|
||||
ldmia $Thh,{$Tll-$Thh} @ load Htbl[nhi]
|
||||
mov $nhi,$nhi,lsl#1
|
||||
eor $Zll,$Tll,$Zll,lsr#4
|
||||
ldrh $Tll,[sp,$nhi] @ rem_4bit[rem]
|
||||
eor $Zll,$Zll,$Zlh,lsl#28
|
||||
ldrb $nhi,[$Xi,#14]
|
||||
eor $Zlh,$Tlh,$Zlh,lsr#4
|
||||
eor $Zlh,$Zlh,$Zhl,lsl#28
|
||||
eor $Zhl,$Thl,$Zhl,lsr#4
|
||||
eor $Zhl,$Zhl,$Zhh,lsl#28
|
||||
eor $Zhh,$Thh,$Zhh,lsr#4
|
||||
eor $nlo,$nlo,$nhi
|
||||
eor $Zhh,$Zhh,$Tll,lsl#16
|
||||
and $nhi,$nlo,#0xf0
|
||||
and $nlo,$nlo,#0x0f
|
||||
|
||||
.Loop:
|
||||
add $Thh,$Htbl,$nlo,lsl#4
|
||||
subs $cnt,$cnt,#1
|
||||
ldmia $Thh,{$Tll-$Thh} @ load Htbl[nlo]
|
||||
and $nlo,$Zll,#0xf @ rem
|
||||
add $nlo,$nlo,$nlo
|
||||
eor $Zll,$Tll,$Zll,lsr#4
|
||||
ldrh $Tll,[sp,$nlo] @ rem_4bit[rem]
|
||||
eor $Zll,$Zll,$Zlh,lsl#28
|
||||
eor $Zlh,$Tlh,$Zlh,lsr#4
|
||||
eor $Zlh,$Zlh,$Zhl,lsl#28
|
||||
eor $Zhl,$Thl,$Zhl,lsr#4
|
||||
eor $Zhl,$Zhl,$Zhh,lsl#28
|
||||
eor $Zhh,$Thh,$Zhh,lsr#4
|
||||
ldrplb $nlo,[$inp,$cnt]
|
||||
|
||||
add $Thh,$Htbl,$nhi
|
||||
eor $Zhh,$Zhh,$Tll,lsl#16 @ ^= rem_4bit[rem]
|
||||
ldmia $Thh,{$Tll-$Thh} @ load Htbl[nhi]
|
||||
and $nhi,$Zll,#0xf @ rem
|
||||
add $nhi,$nhi,$nhi
|
||||
eor $Zll,$Tll,$Zll,lsr#4
|
||||
ldrh $Tll,[sp,$nhi] @ rem_4bit[rem]
|
||||
eor $Zll,$Zll,$Zlh,lsl#28
|
||||
ldrplb $nhi,[$Xi,$cnt]
|
||||
eor $Zlh,$Tlh,$Zlh,lsr#4
|
||||
eor $Zlh,$Zlh,$Zhl,lsl#28
|
||||
eor $Zhl,$Thl,$Zhl,lsr#4
|
||||
eor $Zhl,$Zhl,$Zhh,lsl#28
|
||||
eor $Zhh,$Thh,$Zhh,lsr#4
|
||||
eorpl $nlo,$nlo,$nhi
|
||||
eor $Zhh,$Zhh,$Tll,lsl#16 @ ^= rem_4bit[rem]
|
||||
andpl $nhi,$nlo,#0xf0
|
||||
andpl $nlo,$nlo,#0x0f
|
||||
bpl .Loop
|
||||
|
||||
ldr $len,[sp,#32] @ re-load $len/end
|
||||
add $inp,$inp,#16
|
||||
mov $nhi,$Zll
|
||||
___
|
||||
&Zsmash("cmp\t$inp,$len","ldrneb\t$nlo,[$inp,#15]");
|
||||
$code.=<<___;
|
||||
bne .Louter
|
||||
|
||||
add sp,sp,#36
|
||||
ldmia sp!,{r4-r11,lr}
|
||||
tst lr,#1
|
||||
moveq pc,lr @ be binary compatible with V4, yet
|
||||
bx lr @ interoperable with Thumb ISA:-)
|
||||
.size gcm_ghash_4bit,.-gcm_ghash_4bit
|
||||
|
||||
.global gcm_gmult_4bit
|
||||
.type gcm_gmult_4bit,%function
|
||||
gcm_gmult_4bit:
|
||||
stmdb sp!,{r4-r11,lr}
|
||||
ldrb $nlo,[$Xi,#15]
|
||||
b rem_4bit_get
|
||||
.Lrem_4bit_got:
|
||||
and $nhi,$nlo,#0xf0
|
||||
and $nlo,$nlo,#0x0f
|
||||
mov $cnt,#14
|
||||
|
||||
add $Zhh,$Htbl,$nlo,lsl#4
|
||||
ldmia $Zhh,{$Zll-$Zhh} @ load Htbl[nlo]
|
||||
ldrb $nlo,[$Xi,#14]
|
||||
|
||||
add $Thh,$Htbl,$nhi
|
||||
and $nhi,$Zll,#0xf @ rem
|
||||
ldmia $Thh,{$Tll-$Thh} @ load Htbl[nhi]
|
||||
mov $nhi,$nhi,lsl#1
|
||||
eor $Zll,$Tll,$Zll,lsr#4
|
||||
ldrh $Tll,[$rem_4bit,$nhi] @ rem_4bit[rem]
|
||||
eor $Zll,$Zll,$Zlh,lsl#28
|
||||
eor $Zlh,$Tlh,$Zlh,lsr#4
|
||||
eor $Zlh,$Zlh,$Zhl,lsl#28
|
||||
eor $Zhl,$Thl,$Zhl,lsr#4
|
||||
eor $Zhl,$Zhl,$Zhh,lsl#28
|
||||
eor $Zhh,$Thh,$Zhh,lsr#4
|
||||
and $nhi,$nlo,#0xf0
|
||||
eor $Zhh,$Zhh,$Tll,lsl#16
|
||||
and $nlo,$nlo,#0x0f
|
||||
|
||||
.Loop2:
|
||||
add $Thh,$Htbl,$nlo,lsl#4
|
||||
subs $cnt,$cnt,#1
|
||||
ldmia $Thh,{$Tll-$Thh} @ load Htbl[nlo]
|
||||
and $nlo,$Zll,#0xf @ rem
|
||||
add $nlo,$nlo,$nlo
|
||||
eor $Zll,$Tll,$Zll,lsr#4
|
||||
ldrh $Tll,[$rem_4bit,$nlo] @ rem_4bit[rem]
|
||||
eor $Zll,$Zll,$Zlh,lsl#28
|
||||
eor $Zlh,$Tlh,$Zlh,lsr#4
|
||||
eor $Zlh,$Zlh,$Zhl,lsl#28
|
||||
eor $Zhl,$Thl,$Zhl,lsr#4
|
||||
eor $Zhl,$Zhl,$Zhh,lsl#28
|
||||
eor $Zhh,$Thh,$Zhh,lsr#4
|
||||
ldrplb $nlo,[$Xi,$cnt]
|
||||
|
||||
add $Thh,$Htbl,$nhi
|
||||
eor $Zhh,$Zhh,$Tll,lsl#16 @ ^= rem_4bit[rem]
|
||||
ldmia $Thh,{$Tll-$Thh} @ load Htbl[nhi]
|
||||
and $nhi,$Zll,#0xf @ rem
|
||||
add $nhi,$nhi,$nhi
|
||||
eor $Zll,$Tll,$Zll,lsr#4
|
||||
ldrh $Tll,[$rem_4bit,$nhi] @ rem_4bit[rem]
|
||||
eor $Zll,$Zll,$Zlh,lsl#28
|
||||
eor $Zlh,$Tlh,$Zlh,lsr#4
|
||||
eor $Zlh,$Zlh,$Zhl,lsl#28
|
||||
eor $Zhl,$Thl,$Zhl,lsr#4
|
||||
eor $Zhl,$Zhl,$Zhh,lsl#28
|
||||
eor $Zhh,$Thh,$Zhh,lsr#4
|
||||
andpl $nhi,$nlo,#0xf0
|
||||
eor $Zhh,$Zhh,$Tll,lsl#16 @ ^= rem_4bit[rem]
|
||||
andpl $nlo,$nlo,#0x0f
|
||||
bpl .Loop2
|
||||
___
|
||||
&Zsmash();
|
||||
$code.=<<___;
|
||||
ldmia sp!,{r4-r11,lr}
|
||||
tst lr,#1
|
||||
moveq pc,lr @ be binary compatible with V4, yet
|
||||
bx lr @ interoperable with Thumb ISA:-)
|
||||
.size gcm_gmult_4bit,.-gcm_gmult_4bit
|
||||
.asciz "GHASH for ARMv4, CRYPTOGAMS by <appro\@openssl.org>"
|
||||
.align 2
|
||||
___
|
||||
|
||||
$code =~ s/\`([^\`]*)\`/eval $1/gem;
|
||||
$code =~ s/\bbx\s+lr\b/.word\t0xe12fff1e/gm; # make it possible to compile with -march=armv4
|
||||
print $code;
|
||||
close STDOUT; # enforce flush
|
||||
Loading…
Reference in New Issue
Block a user