--- /dev/null
+#!/usr/bin/env perl
+# Copyright 2017 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
+# in the file LICENSE in the source distribution or at
+# https://www.openssl.org/source/license.html
+#
+# ====================================================================
+# 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/.
+# ====================================================================
+#
+# Keccak-1600 for ARMv8.
+#
+# June 2017.
+#
+# This is straightforward KECCAK_1X_ALT implementation. It makes no
+# sense to attempt SIMD/NEON implementation for following reason.
+# 64-bit lanes of vector registers can't be addressed as easily as in
+# 32-bit mode. This means that 64-bit NEON is bound to be slower than
+# 32-bit NEON, and this implementation is faster than 32-bit NEON on
+# same processor. Even though it takes more scalar xor's and andn's,
+# it gets compensated by availability of rotate. Not to forget that
+# most processors achieve higher issue rate with scalar instructions.
+#
+######################################################################
+# Numbers are cycles per processed byte.
+#
+# r=1088(*)
+#
+# Cortex-A53 13
+# Cortex-A57 12
+# X-Gene 14
+# Mongoose 10
+# Denver 7.8
+# Apple A7 7.2
+#
+# (*) Corresponds to SHA3-256. No improvement coefficients are listed
+# because they vary too much from compiler to compiler. Newer
+# compiler does much better and improvement varies from 5% on
+# Cortex-A57 to 25% on Cortex-A53. While in comparison to older
+# compiler this code is at least 2x faster...
+
+$flavour = shift;
+$output = shift;
+
+$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
+( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or
+( $xlate="${dir}../../perlasm/arm-xlate.pl" and -f $xlate) or
+die "can't locate arm-xlate.pl";
+
+open OUT,"| \"$^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 ],
+ [ 41, 45, 15, 21, 8 ],
+ [ 18, 2, 61, 56, 14 ]);
+
+$code.=<<___;
+.text
+
+.align 8 // strategic alignment and padding that allows to use
+ // address value as loop termination condition...
+ .quad 0,0,0,0,0,0,0,0
+.type iotas,%object
+iotas:
+ .quad 0x0000000000000001
+ .quad 0x0000000000008082
+ .quad 0x800000000000808a
+ .quad 0x8000000080008000
+ .quad 0x000000000000808b
+ .quad 0x0000000080000001
+ .quad 0x8000000080008081
+ .quad 0x8000000000008009
+ .quad 0x000000000000008a
+ .quad 0x0000000000000088
+ .quad 0x0000000080008009
+ .quad 0x000000008000000a
+ .quad 0x000000008000808b
+ .quad 0x800000000000008b
+ .quad 0x8000000000008089
+ .quad 0x8000000000008003
+ .quad 0x8000000000008002
+ .quad 0x8000000000000080
+ .quad 0x000000000000800a
+ .quad 0x800000008000000a
+ .quad 0x8000000080008081
+ .quad 0x8000000000008080
+ .quad 0x0000000080000001
+ .quad 0x8000000080008008
+.size iotas,.-iotas
+
+.type KeccakF1600_int,%function
+.align 5
+KeccakF1600_int:
+ adr $C[2],iotas
+ stp $C[2],x30,[sp,#16] // 32 bytes on top are mine
+ b .Loop
+.align 4
+.Loop:
+ ////////////////////////////////////////// Theta
+ eor $C[0],$A[0][0],$A[1][0]
+ stp $A[0][4],$A[1][4],[sp,#0] // offload pair...
+ eor $C[1],$A[0][1],$A[1][1]
+ eor $C[2],$A[0][2],$A[1][2]
+ eor $C[3],$A[0][3],$A[1][3]
+___
+ $C[4]=$A[0][4];
+ $C[5]=$A[1][4];
+$code.=<<___;
+ eor $C[4],$A[0][4],$A[1][4]
+ eor $C[0],$C[0],$A[2][0]
+ eor $C[1],$C[1],$A[2][1]
+ eor $C[2],$C[2],$A[2][2]
+ eor $C[3],$C[3],$A[2][3]
+ eor $C[4],$C[4],$A[2][4]
+ eor $C[0],$C[0],$A[3][0]
+ eor $C[1],$C[1],$A[3][1]
+ eor $C[2],$C[2],$A[3][2]
+ eor $C[3],$C[3],$A[3][3]
+ eor $C[4],$C[4],$A[3][4]
+ eor $C[0],$C[0],$A[4][0]
+ eor $C[2],$C[2],$A[4][2]
+ eor $C[1],$C[1],$A[4][1]
+ eor $C[3],$C[3],$A[4][3]
+ eor $C[4],$C[4],$A[4][4]
+
+ eor $C[5],$C[0],$C[2],ror#63
+
+ eor $A[0][1],$A[0][1],$C[5]
+ eor $A[1][1],$A[1][1],$C[5]
+ eor $A[2][1],$A[2][1],$C[5]
+ eor $A[3][1],$A[3][1],$C[5]
+ eor $A[4][1],$A[4][1],$C[5]
+
+ eor $C[5],$C[1],$C[3],ror#63
+ eor $C[2],$C[2],$C[4],ror#63
+ eor $C[3],$C[3],$C[0],ror#63
+ eor $C[4],$C[4],$C[1],ror#63
+
+ eor $C[1], $A[0][2],$C[5] // mov $C[1],$A[0][2]
+ eor $A[1][2],$A[1][2],$C[5]
+ eor $A[2][2],$A[2][2],$C[5]
+ eor $A[3][2],$A[3][2],$C[5]
+ eor $A[4][2],$A[4][2],$C[5]
+
+ eor $A[0][0],$A[0][0],$C[4]
+ eor $A[1][0],$A[1][0],$C[4]
+ eor $A[2][0],$A[2][0],$C[4]
+ eor $A[3][0],$A[3][0],$C[4]
+ eor $A[4][0],$A[4][0],$C[4]
+___
+ $C[4]=undef;
+ $C[5]=undef;
+$code.=<<___;
+ ldp $A[0][4],$A[1][4],[sp,#0] // re-load offloaded data
+ eor $C[0], $A[0][3],$C[2] // mov $C[0],$A[0][3]
+ eor $A[1][3],$A[1][3],$C[2]
+ eor $A[2][3],$A[2][3],$C[2]
+ eor $A[3][3],$A[3][3],$C[2]
+ eor $A[4][3],$A[4][3],$C[2]
+
+ eor $C[2], $A[0][4],$C[3] // mov $C[2],$A[0][4]
+ eor $A[1][4],$A[1][4],$C[3]
+ eor $A[2][4],$A[2][4],$C[3]
+ eor $A[3][4],$A[3][4],$C[3]
+ eor $A[4][4],$A[4][4],$C[3]
+
+ ////////////////////////////////////////// Rho+Pi
+ mov $C[3],$A[0][1]
+ ror $A[0][1],$A[1][1],#64-$rhotates[1][1]
+ //mov $C[1],$A[0][2]
+ ror $A[0][2],$A[2][2],#64-$rhotates[2][2]
+ //mov $C[0],$A[0][3]
+ ror $A[0][3],$A[3][3],#64-$rhotates[3][3]
+ //mov $C[2],$A[0][4]
+ ror $A[0][4],$A[4][4],#64-$rhotates[4][4]
+
+ ror $A[1][1],$A[1][4],#64-$rhotates[1][4]
+ ror $A[2][2],$A[2][3],#64-$rhotates[2][3]
+ ror $A[3][3],$A[3][2],#64-$rhotates[3][2]
+ ror $A[4][4],$A[4][1],#64-$rhotates[4][1]
+
+ ror $A[1][4],$A[4][2],#64-$rhotates[4][2]
+ ror $A[2][3],$A[3][4],#64-$rhotates[3][4]
+ ror $A[3][2],$A[2][1],#64-$rhotates[2][1]
+ ror $A[4][1],$A[1][3],#64-$rhotates[1][3]
+
+ ror $A[4][2],$A[2][4],#64-$rhotates[2][4]
+ ror $A[3][4],$A[4][3],#64-$rhotates[4][3]
+ ror $A[2][1],$A[1][2],#64-$rhotates[1][2]
+ ror $A[1][3],$A[3][1],#64-$rhotates[3][1]
+
+ ror $A[2][4],$A[4][0],#64-$rhotates[4][0]
+ ror $A[4][3],$A[3][0],#64-$rhotates[3][0]
+ ror $A[1][2],$A[2][0],#64-$rhotates[2][0]
+ ror $A[3][1],$A[1][0],#64-$rhotates[1][0]
+
+ ror $A[1][0],$C[0],#64-$rhotates[0][3]
+ ror $A[2][0],$C[3],#64-$rhotates[0][1]
+ ror $A[3][0],$C[2],#64-$rhotates[0][4]
+ ror $A[4][0],$C[1],#64-$rhotates[0][2]
+
+ ////////////////////////////////////////// Chi+Iota
+ bic $C[0],$A[0][2],$A[0][1]
+ bic $C[1],$A[0][3],$A[0][2]
+ bic $C[2],$A[0][0],$A[0][4]
+ bic $C[3],$A[0][1],$A[0][0]
+ eor $A[0][0],$A[0][0],$C[0]
+ bic $C[0],$A[0][4],$A[0][3]
+ eor $A[0][1],$A[0][1],$C[1]
+ ldr $C[1],[sp,#16]
+ eor $A[0][3],$A[0][3],$C[2]
+ eor $A[0][4],$A[0][4],$C[3]
+ eor $A[0][2],$A[0][2],$C[0]
+ ldr $C[3],[$C[1]],#8 // Iota[i++]
+
+ bic $C[0],$A[1][2],$A[1][1]
+ tst $C[1],#255 // are we done?
+ str $C[1],[sp,#16]
+ bic $C[1],$A[1][3],$A[1][2]
+ bic $C[2],$A[1][0],$A[1][4]
+ eor $A[0][0],$A[0][0],$C[3] // A[0][0] ^= Iota
+ bic $C[3],$A[1][1],$A[1][0]
+ eor $A[1][0],$A[1][0],$C[0]
+ bic $C[0],$A[1][4],$A[1][3]
+ eor $A[1][1],$A[1][1],$C[1]
+ eor $A[1][3],$A[1][3],$C[2]
+ eor $A[1][4],$A[1][4],$C[3]
+ eor $A[1][2],$A[1][2],$C[0]
+
+ bic $C[0],$A[2][2],$A[2][1]
+ bic $C[1],$A[2][3],$A[2][2]
+ bic $C[2],$A[2][0],$A[2][4]
+ bic $C[3],$A[2][1],$A[2][0]
+ eor $A[2][0],$A[2][0],$C[0]
+ bic $C[0],$A[2][4],$A[2][3]
+ eor $A[2][1],$A[2][1],$C[1]
+ eor $A[2][3],$A[2][3],$C[2]
+ eor $A[2][4],$A[2][4],$C[3]
+ eor $A[2][2],$A[2][2],$C[0]
+
+ bic $C[0],$A[3][2],$A[3][1]
+ bic $C[1],$A[3][3],$A[3][2]
+ bic $C[2],$A[3][0],$A[3][4]
+ bic $C[3],$A[3][1],$A[3][0]
+ eor $A[3][0],$A[3][0],$C[0]
+ bic $C[0],$A[3][4],$A[3][3]
+ eor $A[3][1],$A[3][1],$C[1]
+ eor $A[3][3],$A[3][3],$C[2]
+ eor $A[3][4],$A[3][4],$C[3]
+ eor $A[3][2],$A[3][2],$C[0]
+
+ bic $C[0],$A[4][2],$A[4][1]
+ bic $C[1],$A[4][3],$A[4][2]
+ bic $C[2],$A[4][0],$A[4][4]
+ bic $C[3],$A[4][1],$A[4][0]
+ eor $A[4][0],$A[4][0],$C[0]
+ bic $C[0],$A[4][4],$A[4][3]
+ eor $A[4][1],$A[4][1],$C[1]
+ eor $A[4][3],$A[4][3],$C[2]
+ eor $A[4][4],$A[4][4],$C[3]
+ eor $A[4][2],$A[4][2],$C[0]
+
+ bne .Loop
+
+ ldr x30,[sp,#24]
+ ret
+.size KeccakF1600_int,.-KeccakF1600_int
+
+.type KeccakF1600,%function
+.align 5
+KeccakF1600:
+ stp x29,x30,[sp,#-128]!
+ add x29,sp,#0
+ stp x19,x20,[sp,#16]
+ stp x21,x22,[sp,#32]
+ stp x23,x24,[sp,#48]
+ stp x25,x26,[sp,#64]
+ stp x27,x28,[sp,#80]
+ sub sp,sp,#48
+
+ str x0,[sp,#32] // offload argument
+ mov $C[0],x0
+ ldp $A[0][0],$A[0][1],[x0,#16*0]
+ ldp $A[0][2],$A[0][3],[$C[0],#16*1]
+ ldp $A[0][4],$A[1][0],[$C[0],#16*2]
+ ldp $A[1][1],$A[1][2],[$C[0],#16*3]
+ ldp $A[1][3],$A[1][4],[$C[0],#16*4]
+ ldp $A[2][0],$A[2][1],[$C[0],#16*5]
+ ldp $A[2][2],$A[2][3],[$C[0],#16*6]
+ ldp $A[2][4],$A[3][0],[$C[0],#16*7]
+ ldp $A[3][1],$A[3][2],[$C[0],#16*8]
+ ldp $A[3][3],$A[3][4],[$C[0],#16*9]
+ ldp $A[4][0],$A[4][1],[$C[0],#16*10]
+ ldp $A[4][2],$A[4][3],[$C[0],#16*11]
+ ldr $A[4][4],[$C[0],#16*12]
+
+ bl KeccakF1600_int
+
+ ldr $C[0],[sp,#32]
+ stp $A[0][0],$A[0][1],[$C[0],#16*0]
+ stp $A[0][2],$A[0][3],[$C[0],#16*1]
+ stp $A[0][4],$A[1][0],[$C[0],#16*2]
+ stp $A[1][1],$A[1][2],[$C[0],#16*3]
+ stp $A[1][3],$A[1][4],[$C[0],#16*4]
+ stp $A[2][0],$A[2][1],[$C[0],#16*5]
+ stp $A[2][2],$A[2][3],[$C[0],#16*6]
+ stp $A[2][4],$A[3][0],[$C[0],#16*7]
+ stp $A[3][1],$A[3][2],[$C[0],#16*8]
+ stp $A[3][3],$A[3][4],[$C[0],#16*9]
+ stp $A[4][0],$A[4][1],[$C[0],#16*10]
+ stp $A[4][2],$A[4][3],[$C[0],#16*11]
+ str $A[4][4],[$C[0],#16*12]
+
+ ldp x19,x20,[x29,#16]
+ add sp,sp,#48
+ ldp x21,x22,[x29,#32]
+ ldp x23,x24,[x29,#48]
+ ldp x25,x26,[x29,#64]
+ ldp x27,x28,[x29,#80]
+ ldp x29,x30,[sp],#128
+ ret
+.size KeccakF1600,.-KeccakF1600
+
+.globl SHA3_absorb
+.type SHA3_absorb,%function
+.align 5
+SHA3_absorb:
+ stp x29,x30,[sp,#-128]!
+ add x29,sp,#0
+ stp x19,x20,[sp,#16]
+ stp x21,x22,[sp,#32]
+ stp x23,x24,[sp,#48]
+ stp x25,x26,[sp,#64]
+ stp x27,x28,[sp,#80]
+ sub sp,sp,#64
+
+ stp x0,x1,[sp,#32] // offload arguments
+ stp x2,x3,[sp,#48]
+
+ mov $C[0],x0 // uint64_t A[5][5]
+ mov $C[1],x1 // const void *inp
+ mov $C[2],x2 // size_t len
+ mov $C[3],x3 // size_t bsz
+ ldp $A[0][0],$A[0][1],[$C[0],#16*0]
+ ldp $A[0][2],$A[0][3],[$C[0],#16*1]
+ ldp $A[0][4],$A[1][0],[$C[0],#16*2]
+ ldp $A[1][1],$A[1][2],[$C[0],#16*3]
+ ldp $A[1][3],$A[1][4],[$C[0],#16*4]
+ ldp $A[2][0],$A[2][1],[$C[0],#16*5]
+ ldp $A[2][2],$A[2][3],[$C[0],#16*6]
+ ldp $A[2][4],$A[3][0],[$C[0],#16*7]
+ ldp $A[3][1],$A[3][2],[$C[0],#16*8]
+ ldp $A[3][3],$A[3][4],[$C[0],#16*9]
+ ldp $A[4][0],$A[4][1],[$C[0],#16*10]
+ ldp $A[4][2],$A[4][3],[$C[0],#16*11]
+ ldr $A[4][4],[$C[0],#16*12]
+ b .Loop_absorb
+
+.align 4
+.Loop_absorb:
+ subs $C[0],$C[2],$C[3] // len - bsz
+ blo .Labsorbed
+
+ str $C[0],[sp,#48] // save len - bsz
+ ldr $C[0],[$C[1]],#8 // *inp++
+#ifdef __AARCH64EB__
+ rev $C[0],$C[0]
+#endif
+ eor $A[0][0],$A[0][0],$C[0]
+ cmp $C[3],#8*2
+ blo .Lprocess_block
+ ldr $C[0],[$C[1]],#8 // *inp++
+#ifdef __AARCH64EB__
+ rev $C[0],$C[0]
+#endif
+ eor $A[0][1],$A[0][1],$C[0]
+ beq .Lprocess_block
+ ldr $C[0],[$C[1]],#8 // *inp++
+#ifdef __AARCH64EB__
+ rev $C[0],$C[0]
+#endif
+ eor $A[0][2],$A[0][2],$C[0]
+ cmp $C[3],#8*4
+ blo .Lprocess_block
+ ldr $C[0],[$C[1]],#8 // *inp++
+#ifdef __AARCH64EB__
+ rev $C[0],$C[0]
+#endif
+ eor $A[0][3],$A[0][3],$C[0]
+ beq .Lprocess_block
+ ldr $C[0],[$C[1]],#8 // *inp++
+#ifdef __AARCH64EB__
+ rev $C[0],$C[0]
+#endif
+ eor $A[0][4],$A[0][4],$C[0]
+ cmp $C[3],#8*6
+ blo .Lprocess_block
+ ldr $C[0],[$C[1]],#8 // *inp++
+#ifdef __AARCH64EB__
+ rev $C[0],$C[0]
+#endif
+ eor $A[1][0],$A[1][0],$C[0]
+ beq .Lprocess_block
+ ldr $C[0],[$C[1]],#8 // *inp++
+#ifdef __AARCH64EB__
+ rev $C[0],$C[0]
+#endif
+ eor $A[1][1],$A[1][1],$C[0]
+ cmp $C[3],#8*8
+ blo .Lprocess_block
+ ldr $C[0],[$C[1]],#8 // *inp++
+#ifdef __AARCH64EB__
+ rev $C[0],$C[0]
+#endif
+ eor $A[1][2],$A[1][2],$C[0]
+ beq .Lprocess_block
+ ldr $C[0],[$C[1]],#8 // *inp++
+#ifdef __AARCH64EB__
+ rev $C[0],$C[0]
+#endif
+ eor $A[1][3],$A[1][3],$C[0]
+ cmp $C[3],#8*10
+ blo .Lprocess_block
+ ldr $C[0],[$C[1]],#8 // *inp++
+#ifdef __AARCH64EB__
+ rev $C[0],$C[0]
+#endif
+ eor $A[1][4],$A[1][4],$C[0]
+ beq .Lprocess_block
+ ldr $C[0],[$C[1]],#8 // *inp++
+#ifdef __AARCH64EB__
+ rev $C[0],$C[0]
+#endif
+ eor $A[2][0],$A[2][0],$C[0]
+ cmp $C[3],#8*12
+ blo .Lprocess_block
+ ldr $C[0],[$C[1]],#8 // *inp++
+#ifdef __AARCH64EB__
+ rev $C[0],$C[0]
+#endif
+ eor $A[2][1],$A[2][1],$C[0]
+ beq .Lprocess_block
+ ldr $C[0],[$C[1]],#8 // *inp++
+#ifdef __AARCH64EB__
+ rev $C[0],$C[0]
+#endif
+ eor $A[2][2],$A[2][2],$C[0]
+ cmp $C[3],#8*14
+ blo .Lprocess_block
+ ldr $C[0],[$C[1]],#8 // *inp++
+#ifdef __AARCH64EB__
+ rev $C[0],$C[0]
+#endif
+ eor $A[2][3],$A[2][3],$C[0]
+ beq .Lprocess_block
+ ldr $C[0],[$C[1]],#8 // *inp++
+#ifdef __AARCH64EB__
+ rev $C[0],$C[0]
+#endif
+ eor $A[2][4],$A[2][4],$C[0]
+ cmp $C[3],#8*16
+ blo .Lprocess_block
+ ldr $C[0],[$C[1]],#8 // *inp++
+#ifdef __AARCH64EB__
+ rev $C[0],$C[0]
+#endif
+ eor $A[3][0],$A[3][0],$C[0]
+ beq .Lprocess_block
+ ldr $C[0],[$C[1]],#8 // *inp++
+#ifdef __AARCH64EB__
+ rev $C[0],$C[0]
+#endif
+ eor $A[3][1],$A[3][1],$C[0]
+ cmp $C[3],#8*18
+ blo .Lprocess_block
+ ldr $C[0],[$C[1]],#8 // *inp++
+#ifdef __AARCH64EB__
+ rev $C[0],$C[0]
+#endif
+ eor $A[3][2],$A[3][2],$C[0]
+ beq .Lprocess_block
+ ldr $C[0],[$C[1]],#8 // *inp++
+#ifdef __AARCH64EB__
+ rev $C[0],$C[0]
+#endif
+ eor $A[3][3],$A[3][3],$C[0]
+ cmp $C[3],#8*20
+ blo .Lprocess_block
+ ldr $C[0],[$C[1]],#8 // *inp++
+#ifdef __AARCH64EB__
+ rev $C[0],$C[0]
+#endif
+ eor $A[3][4],$A[3][4],$C[0]
+ beq .Lprocess_block
+ ldr $C[0],[$C[1]],#8 // *inp++
+#ifdef __AARCH64EB__
+ rev $C[0],$C[0]
+#endif
+ eor $A[4][0],$A[4][0],$C[0]
+ cmp $C[3],#8*22
+ blo .Lprocess_block
+ ldr $C[0],[$C[1]],#8 // *inp++
+#ifdef __AARCH64EB__
+ rev $C[0],$C[0]
+#endif
+ eor $A[4][1],$A[4][1],$C[0]
+ beq .Lprocess_block
+ ldr $C[0],[$C[1]],#8 // *inp++
+#ifdef __AARCH64EB__
+ rev $C[0],$C[0]
+#endif
+ eor $A[4][2],$A[4][2],$C[0]
+ cmp $C[3],#8*24
+ blo .Lprocess_block
+ ldr $C[0],[$C[1]],#8 // *inp++
+#ifdef __AARCH64EB__
+ rev $C[0],$C[0]
+#endif
+ eor $A[4][3],$A[4][3],$C[0]
+ beq .Lprocess_block
+ ldr $C[0],[$C[1]],#8 // *inp++
+#ifdef __AARCH64EB__
+ rev $C[0],$C[0]
+#endif
+ eor $A[4][4],$A[4][4],$C[0]
+
+.Lprocess_block:
+ str $C[1],[sp,#40] // save inp
+
+ bl KeccakF1600_int
+
+ ldr $C[1],[sp,#40] // restore arguments
+ ldp $C[2],$C[3],[sp,#48]
+ b .Loop_absorb
+
+.align 4
+.Labsorbed:
+ ldr $C[1],[sp,#32]
+ stp $A[0][0],$A[0][1],[$C[1],#16*0]
+ stp $A[0][2],$A[0][3],[$C[1],#16*1]
+ stp $A[0][4],$A[1][0],[$C[1],#16*2]
+ stp $A[1][1],$A[1][2],[$C[1],#16*3]
+ stp $A[1][3],$A[1][4],[$C[1],#16*4]
+ stp $A[2][0],$A[2][1],[$C[1],#16*5]
+ stp $A[2][2],$A[2][3],[$C[1],#16*6]
+ stp $A[2][4],$A[3][0],[$C[1],#16*7]
+ stp $A[3][1],$A[3][2],[$C[1],#16*8]
+ stp $A[3][3],$A[3][4],[$C[1],#16*9]
+ stp $A[4][0],$A[4][1],[$C[1],#16*10]
+ stp $A[4][2],$A[4][3],[$C[1],#16*11]
+ str $A[4][4],[$C[1],#16*12]
+
+ mov x0,$C[0] // return value
+ ldp x19,x20,[x29,#16]
+ add sp,sp,#64
+ ldp x21,x22,[x29,#32]
+ ldp x23,x24,[x29,#48]
+ ldp x25,x26,[x29,#64]
+ ldp x27,x28,[x29,#80]
+ ldp x29,x30,[sp],#128
+ ret
+.size SHA3_absorb,.-SHA3_absorb
+___
+{
+my ($A_flat,$out,$len,$bsz) = map("x$_",(19..22));
+$code.=<<___;
+.globl SHA3_squeeze
+.type SHA3_squeeze,%function
+.align 5
+SHA3_squeeze:
+ stp x29,x30,[sp,#-48]!
+ add x29,sp,#0
+ stp x19,x20,[sp,#16]
+ stp x21,x22,[sp,#32]
+
+ mov $A_flat,x0 // put aside arguments
+ mov $out,x1
+ mov $len,x2
+ mov $bsz,x3
+
+.Loop_squeeze:
+ ldr x4,[x0],#8
+ cmp $len,#8
+ blo .Lsqueeze_tail
+#ifdef __AARCH64EB__
+ rev x4,x4
+#endif
+ str x4,[$out],#8
+ subs $len,$len,#8
+ beq .Lsqueeze_done
+
+ subs x3,x3,#8
+ bhi .Loop_squeeze
+
+ mov x0,$A_flat
+ bl KeccakF1600
+ mov x0,$A_flat
+ mov x3,$bsz
+ b .Loop_squeeze
+
+.align 4
+.Lsqueeze_tail:
+ strb w4,[$out],#1
+ lsr x4,x4,#8
+ subs $len,$len,#1
+ beq .Lsqueeze_done
+ strb w4,[$out],#1
+ lsr x4,x4,#8
+ subs $len,$len,#1
+ beq .Lsqueeze_done
+ strb w4,[$out],#1
+ lsr x4,x4,#8
+ subs $len,$len,#1
+ beq .Lsqueeze_done
+ strb w4,[$out],#1
+ lsr x4,x4,#8
+ subs $len,$len,#1
+ beq .Lsqueeze_done
+ strb w4,[$out],#1
+ lsr x4,x4,#8
+ subs $len,$len,#1
+ beq .Lsqueeze_done
+ strb w4,[$out],#1
+ lsr x4,x4,#8
+ subs $len,$len,#1
+ beq .Lsqueeze_done
+ strb w4,[$out],#1
+
+.Lsqueeze_done:
+ ldp x19,x20,[sp,#16]
+ ldp x21,x22,[sp,#32]
+ ldp x29,x30,[sp],#48
+ ret
+.size SHA3_squeeze,.-SHA3_squeeze
+.asciz "Keccak-1600 absorb and squeeze for ARMv8, CRYPTOGAMS by <appro\@openssl.org>"
+___
+}
+
+print $code;
+close STDOUT;
projects / oweals / openssl.git / commitdiff