--- /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 PowerISA 2.07.
+#
+# June 2017.
+#
+# This is straightforward KECCAK_1X_ALT SIMD implementation, but with
+# disjoint Rho and Pi. The module is ABI-bitness- and endian-neutral.
+# POWER8 processor spends 9.8 cycles to process byte out of large
+# buffer for r=1088, which matches SHA3-256. This is 17% better than
+# scalar PPC64 code. It probably should be noted that if POWER8's
+# successor can achieve higher scalar instruction issue rate, then
+# this module will loose...
+
+$flavour = shift;
+
+if ($flavour =~ /64/) {
+ $SIZE_T =8;
+ $LRSAVE =2*$SIZE_T;
+ $UCMP ="cmpld";
+ $STU ="stdu";
+ $POP ="ld";
+ $PUSH ="std";
+} elsif ($flavour =~ /32/) {
+ $SIZE_T =4;
+ $LRSAVE =$SIZE_T;
+ $STU ="stwu";
+ $POP ="lwz";
+ $PUSH ="stw";
+ $UCMP ="cmplw";
+} else { die "nonsense $flavour"; }
+
+$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
+( $xlate="${dir}ppc-xlate.pl" and -f $xlate ) or
+( $xlate="${dir}../../perlasm/ppc-xlate.pl" and -f $xlate) or
+die "can't locate ppc-xlate.pl";
+
+open STDOUT,"| $^X $xlate $flavour ".shift || die "can't call $xlate: $!";
+
+$FRAME=6*$SIZE_T+13*16; # 13*16 is for v20-v31 offload
+
+my $sp ="r1";
+
+my $iotas = "r12";
+
+########################################################################
+# Register layout:
+#
+# v0 A[0][0] A[1][0]
+# v1 A[0][1] A[1][1]
+# v2 A[0][2] A[1][2]
+# v3 A[0][3] A[1][3]
+# v4 A[0][4] A[1][4]
+#
+# v5 A[2][0] A[3][0]
+# v6 A[2][1] A[3][1]
+# v7 A[2][2] A[3][2]
+# v8 A[2][3] A[3][3]
+# v9 A[2][4] A[3][4]
+#
+# v10 A[4][0] A[4][1]
+# v11 A[4][2] A[4][3]
+# v12 A[4][4] A[4][4]
+#
+# v13..25 rhotates[][]
+# v26..31 volatile
+#
+$code.=<<___;
+.machine "any"
+.text
+
+.type KeccakF1600_int,\@function
+.align 5
+KeccakF1600_int:
+ li r0,24
+ mtctr r0
+ li r0,0
+ b .Loop
+
+.align 4
+.Loop:
+ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; Theta
+ vxor v26,v0, v5 ; A[0..1][0]^A[2..3][0]
+ vxor v27,v1, v6 ; A[0..1][1]^A[2..3][1]
+ vxor v28,v2, v7 ; A[0..1][2]^A[2..3][2]
+ vxor v29,v3, v8 ; A[0..1][3]^A[2..3][3]
+ vxor v30,v4, v9 ; A[0..1][4]^A[2..3][4]
+ vpermdi v31,v26,v27,0b00 ; A[0][0..1]^A[2][0..1]
+ vpermdi v26,v26,v27,0b11 ; A[1][0..1]^A[3][0..1]
+ vpermdi v27,v28,v29,0b00 ; A[0][2..3]^A[2][2..3]
+ vpermdi v28,v28,v29,0b11 ; A[1][2..3]^A[3][2..3]
+ vpermdi v29,v30,v30,0b10 ; A[1..0][4]^A[3..2][4]
+ vxor v26,v26,v31 ; C[0..1]
+ vxor v27,v27,v28 ; C[2..3]
+ vxor v28,v29,v30 ; C[4..4]
+ vspltisb v31,1
+ vxor v26,v26,v10 ; C[0..1] ^= A[4][0..1]
+ vxor v27,v27,v11 ; C[2..3] ^= A[4][2..3]
+ vxor v28,v28,v12 ; C[4..4] ^= A[4][4..4], low!
+
+ vrld v29,v26,v31 ; ROL64(C[0..1],1)
+ vrld v30,v27,v31 ; ROL64(C[2..3],1)
+ vrld v31,v28,v31 ; ROL64(C[4..4],1)
+ vpermdi v31,v31,v29,0b10
+ vxor v26,v26,v30 ; C[0..1] ^= ROL64(C[2..3],1)
+ vxor v27,v27,v31 ; C[2..3] ^= ROL64(C[4..0],1)
+ vxor v28,v28,v29 ; C[4..4] ^= ROL64(C[0..1],1), low!
+
+ vpermdi v29,v26,v26,0b00 ; C[0..0]
+ vpermdi v30,v28,v26,0b10 ; C[4..0]
+ vpermdi v31,v28,v28,0b11 ; C[4..4]
+ vxor v1, v1, v29 ; A[0..1][1] ^= C[0..0]
+ vxor v6, v6, v29 ; A[2..3][1] ^= C[0..0]
+ vxor v10,v10,v30 ; A[4][0..1] ^= C[4..0]
+ vxor v0, v0, v31 ; A[0..1][0] ^= C[4..4]
+ vxor v5, v5, v31 ; A[2..3][0] ^= C[4..4]
+
+ vpermdi v29,v27,v27,0b00 ; C[2..2]
+ vpermdi v30,v26,v26,0b11 ; C[1..1]
+ vpermdi v31,v26,v27,0b10 ; C[1..2]
+ vxor v3, v3, v29 ; A[0..1][3] ^= C[2..2]
+ vxor v8, v8, v29 ; A[2..3][3] ^= C[2..2]
+ vxor v2, v2, v30 ; A[0..1][2] ^= C[1..1]
+ vxor v7, v7, v30 ; A[2..3][2] ^= C[1..1]
+ vxor v11,v11,v31 ; A[4][2..3] ^= C[1..2]
+
+ vpermdi v29,v27,v27,0b11 ; C[3..3]
+ vxor v4, v4, v29 ; A[0..1][4] ^= C[3..3]
+ vxor v9, v9, v29 ; A[2..3][4] ^= C[3..3]
+ vxor v12,v12,v29 ; A[4..4][4] ^= C[3..3]
+
+ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; Rho
+ vrld v26,v0, v13 ; v0
+ vrld v1, v1, v14
+ vrld v27,v2, v15 ; v2
+ vrld v28,v3, v16 ; v3
+ vrld v4, v4, v17
+ vrld v5, v5, v18
+ vrld v6, v6, v19
+ vrld v29,v7, v20 ; v7
+ vrld v8, v8, v21
+ vrld v9, v9, v22
+ vrld v10,v10,v23
+ vrld v30,v11,v24 ; v11
+ vrld v12,v12,v25
+
+ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; Pi
+ vpermdi v0, v26,v28,0b00 ; [0][0] [1][0] < [0][0] [0][3]
+ vpermdi v2, v29,v5, 0b00 ; [0][2] [1][2] < [2][2] [2][0]
+ vpermdi v11,v9, v5, 0b01 ; [4][2] [4][3] < [2][4] [3][0]
+ vpermdi v5, v1, v4, 0b00 ; [2][0] [3][0] < [0][1] [0][4]
+ vpermdi v1, v1, v4, 0b11 ; [0][1] [1][1] < [1][1] [1][4]
+ vpermdi v3, v8, v6, 0b11 ; [0][3] [1][3] < [3][3] [3][1]
+ vpermdi v4, v12,v30,0b10 ; [0][4] [1][4] < [4][4] [4][2]
+ vpermdi v7, v8, v6, 0b00 ; [2][2] [3][2] < [2][3] [2][1]
+ vpermdi v6, v27,v26,0b11 ; [2][1] [3][1] < [1][2] [1][0]
+ vpermdi v8, v9, v29,0b11 ; [2][3] [3][3] < [3][4] [3][2]
+ vpermdi v12,v10,v10,0b11 ; [4][4] [4][4] < [4][1] [4][1]
+ vpermdi v9, v10,v30,0b01 ; [2][4] [3][4] < [4][0] [4][3]
+ vpermdi v10,v27,v28,0b01 ; [4][0] [4][1] < [0][2] [1][3]
+
+ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; Chi + Iota
+ lvx_u v31,$iotas,r0 ; iotas[index]
+ addic r0,r0,16 ; index++
+
+ vandc v26,v2, v1 ; (~A[0..1][1] & A[0..1][2])
+ vandc v27,v3, v2 ; (~A[0..1][2] & A[0..1][3])
+ vandc v28,v4, v3 ; (~A[0..1][3] & A[0..1][4])
+ vandc v29,v0, v4 ; (~A[0..1][4] & A[0..1][0])
+ vandc v30,v1, v0 ; (~A[0..1][0] & A[0..1][1])
+ vxor v0, v0, v26 ; A[0..1][0] ^= (~A[0..1][1] & A[0..1][2])
+ vxor v1, v1, v27 ; A[0..1][1] ^= (~A[0..1][2] & A[0..1][3])
+ vxor v2, v2, v28 ; A[0..1][2] ^= (~A[0..1][3] & A[0..1][4])
+ vxor v3, v3, v29 ; A[0..1][3] ^= (~A[0..1][4] & A[0..1][0])
+ vxor v4, v4, v30 ; A[0..1][4] ^= (~A[0..1][0] & A[0..1][1])
+
+ vandc v26,v7, v6 ; (~A[2..3][1] & A[2..3][2])
+ vandc v27,v8, v7 ; (~A[2..3][2] & A[2..3][3])
+ vandc v28,v9, v8 ; (~A[2..3][3] & A[2..3][4])
+ vandc v29,v5, v9 ; (~A[2..3][4] & A[2..3][0])
+ vandc v30,v6, v5 ; (~A[2..3][0] & A[2..3][1])
+ vxor v5, v5, v26 ; A[2..3][0] ^= (~A[2..3][1] & A[2..3][2])
+ vxor v6, v6, v27 ; A[2..3][1] ^= (~A[2..3][2] & A[2..3][3])
+ vxor v7, v7, v28 ; A[2..3][2] ^= (~A[2..3][3] & A[2..3][4])
+ vxor v8, v8, v29 ; A[2..3][3] ^= (~A[2..3][4] & A[2..3][0])
+ vxor v9, v9, v30 ; A[2..3][4] ^= (~A[2..3][0] & A[2..3][1])
+
+ vxor v0, v0, v31 ; A[0][0] ^= iotas[index++]
+
+ vpermdi v26,v10,v11,0b10 ; A[4][1..2]
+ vpermdi v27,v12,v10,0b00 ; A[4][4..0]
+ vpermdi v28,v11,v12,0b10 ; A[4][3..4]
+ vpermdi v29,v10,v10,0b10 ; A[4][1..0]
+ vandc v26,v11,v26 ; (~A[4][1..2] & A[4][2..3])
+ vandc v27,v27,v28 ; (~A[4][3..4] & A[4][4..0])
+ vandc v28,v10,v29 ; (~A[4][1..0] & A[4][0..1])
+ vxor v10,v10,v26 ; A[4][0..1] ^= (~A[4][1..2] & A[4][2..3])
+ vxor v11,v11,v27 ; A[4][2..3] ^= (~A[4][3..4] & A[4][4..0])
+ vxor v12,v12,v28 ; A[4][4..4] ^= (~A[4][0..1] & A[4][1..0])
+
+ bdnz .Loop
+
+ vpermdi v12,v12,v12,0b11 ; broadcast A[4][4]
+ blr
+ .long 0
+ .byte 0,12,0x14,0,0,0,0,0
+.size KeccakF1600_int,.-KeccakF1600_int
+
+.type KeccakF1600,\@function
+.align 5
+KeccakF1600:
+ $STU $sp,-$FRAME($sp)
+ li r10,`15+6*$SIZE_T`
+ li r11,`31+6*$SIZE_T`
+ mflr r8
+ mfspr r7, 256 ; save vrsave
+ stvx v20,r10,$sp
+ addi r10,r10,32
+ stvx v21,r11,$sp
+ addi r11,r11,32
+ stvx v22,r10,$sp
+ addi r10,r10,32
+ stvx v23,r11,$sp
+ addi r11,r11,32
+ stvx v24,r10,$sp
+ addi r10,r10,32
+ stvx v25,r11,$sp
+ addi r11,r11,32
+ stvx v26,r10,$sp
+ addi r10,r10,32
+ stvx v27,r11,$sp
+ addi r11,r11,32
+ stvx v28,r10,$sp
+ addi r10,r10,32
+ stvx v29,r11,$sp
+ addi r11,r11,32
+ stvx v30,r10,$sp
+ stvx v31,r11,$sp
+ stw r7,`$FRAME-4`($sp) ; save vrsave
+ li r0, -1
+ $PUSH r8,`$FRAME+$LRSAVE`($sp)
+ mtspr 256, r0 ; preserve all AltiVec registers
+
+ li r11,16
+ lvx_4w v0,0,r3 ; load A[5][5]
+ li r10,32
+ lvx_4w v1,r11,r3
+ addi r11,r11,32
+ lvx_4w v2,r10,r3
+ addi r10,r10,32
+ lvx_4w v3,r11,r3
+ addi r11,r11,32
+ lvx_4w v4,r10,r3
+ addi r10,r10,32
+ lvx_4w v5,r11,r3
+ addi r11,r11,32
+ lvx_4w v6,r10,r3
+ addi r10,r10,32
+ lvx_4w v7,r11,r3
+ addi r11,r11,32
+ lvx_4w v8,r10,r3
+ addi r10,r10,32
+ lvx_4w v9,r11,r3
+ addi r11,r11,32
+ lvx_4w v10,r10,r3
+ addi r10,r10,32
+ lvx_4w v11,r11,r3
+ lvx_splt v12,r10,r3
+
+ bl PICmeup
+
+ li r11,16
+ lvx_u v13,0,r12 ; load rhotates
+ li r10,32
+ lvx_u v14,r11,r12
+ addi r11,r11,32
+ lvx_u v15,r10,r12
+ addi r10,r10,32
+ lvx_u v16,r11,r12
+ addi r11,r11,32
+ lvx_u v17,r10,r12
+ addi r10,r10,32
+ lvx_u v18,r11,r12
+ addi r11,r11,32
+ lvx_u v19,r10,r12
+ addi r10,r10,32
+ lvx_u v20,r11,r12
+ addi r11,r11,32
+ lvx_u v21,r10,r12
+ addi r10,r10,32
+ lvx_u v22,r11,r12
+ addi r11,r11,32
+ lvx_u v23,r10,r12
+ addi r10,r10,32
+ lvx_u v24,r11,r12
+ lvx_u v25,r10,r12
+ addi r12,r12,`16*16` ; points at iotas
+
+ bl KeccakF1600_int
+
+ li r11,16
+ stvx_4w v0,0,r3 ; return A[5][5]
+ li r10,32
+ stvx_4w v1,r11,r3
+ addi r11,r11,32
+ stvx_4w v2,r10,r3
+ addi r10,r10,32
+ stvx_4w v3,r11,r3
+ addi r11,r11,32
+ stvx_4w v4,r10,r3
+ addi r10,r10,32
+ stvx_4w v5,r11,r3
+ addi r11,r11,32
+ stvx_4w v6,r10,r3
+ addi r10,r10,32
+ stvx_4w v7,r11,r3
+ addi r11,r11,32
+ stvx_4w v8,r10,r3
+ addi r10,r10,32
+ stvx_4w v9,r11,r3
+ addi r11,r11,32
+ stvx_4w v10,r10,r3
+ addi r10,r10,32
+ stvx_4w v11,r11,r3
+ stvdx_u v12,r10,r3
+
+ li r10,`15+6*$SIZE_T`
+ li r11,`31+6*$SIZE_T`
+ mtlr r8
+ mtspr 256, r7 ; restore vrsave
+ lvx v20,r10,$sp
+ addi r10,r10,32
+ lvx v21,r11,$sp
+ addi r11,r11,32
+ lvx v22,r10,$sp
+ addi r10,r10,32
+ lvx v23,r11,$sp
+ addi r11,r11,32
+ lvx v24,r10,$sp
+ addi r10,r10,32
+ lvx v25,r11,$sp
+ addi r11,r11,32
+ lvx v26,r10,$sp
+ addi r10,r10,32
+ lvx v27,r11,$sp
+ addi r11,r11,32
+ lvx v28,r10,$sp
+ addi r10,r10,32
+ lvx v29,r11,$sp
+ addi r11,r11,32
+ lvx v30,r10,$sp
+ lvx v31,r11,$sp
+ addi $sp,$sp,$FRAME
+ blr
+ .long 0
+ .byte 0,12,0x04,1,0x80,0,1,0
+ .long 0
+.size KeccakF1600,.-KeccakF1600
+___
+{
+my ($A_jagged,$inp,$len,$bsz) = map("r$_",(3..6));
+
+$code.=<<___;
+.globl SHA3_absorb
+.type SHA3_absorb,\@function
+.align 5
+SHA3_absorb:
+ $STU $sp,-$FRAME($sp)
+ li r10,`15+6*$SIZE_T`
+ li r11,`31+6*$SIZE_T`
+ mflr r8
+ mfspr r7, 256 ; save vrsave
+ stvx v20,r10,$sp
+ addi r10,r10,32
+ stvx v21,r11,$sp
+ addi r11,r11,32
+ stvx v22,r10,$sp
+ addi r10,r10,32
+ stvx v23,r11,$sp
+ addi r11,r11,32
+ stvx v24,r10,$sp
+ addi r10,r10,32
+ stvx v25,r11,$sp
+ addi r11,r11,32
+ stvx v26,r10,$sp
+ addi r10,r10,32
+ stvx v27,r11,$sp
+ addi r11,r11,32
+ stvx v28,r10,$sp
+ addi r10,r10,32
+ stvx v29,r11,$sp
+ addi r11,r11,32
+ stvx v30,r10,$sp
+ stvx v31,r11,$sp
+ stw r7,`$FRAME-4`($sp) ; save vrsave
+ li r0, -1
+ $PUSH r8,`$FRAME+$LRSAVE`($sp)
+ mtspr 256, r0 ; preserve all AltiVec registers
+
+ li r11,16
+ lvx_4w v0,0,$A_jagged ; load A[5][5]
+ li r10,32
+ lvx_4w v1,r11,$A_jagged
+ addi r11,r11,32
+ lvx_4w v2,r10,$A_jagged
+ addi r10,r10,32
+ lvx_4w v3,r11,$A_jagged
+ addi r11,r11,32
+ lvx_4w v4,r10,$A_jagged
+ addi r10,r10,32
+ lvx_4w v5,r11,$A_jagged
+ addi r11,r11,32
+ lvx_4w v6,r10,$A_jagged
+ addi r10,r10,32
+ lvx_4w v7,r11,$A_jagged
+ addi r11,r11,32
+ lvx_4w v8,r10,$A_jagged
+ addi r10,r10,32
+ lvx_4w v9,r11,$A_jagged
+ addi r11,r11,32
+ lvx_4w v10,r10,$A_jagged
+ addi r10,r10,32
+ lvx_4w v11,r11,$A_jagged
+ lvx_splt v12,r10,$A_jagged
+
+ bl PICmeup
+
+ li r11,16
+ lvx_u v13,0,r12 ; load rhotates
+ li r10,32
+ lvx_u v14,r11,r12
+ addi r11,r11,32
+ lvx_u v15,r10,r12
+ addi r10,r10,32
+ lvx_u v16,r11,r12
+ addi r11,r11,32
+ lvx_u v17,r10,r12
+ addi r10,r10,32
+ lvx_u v18,r11,r12
+ addi r11,r11,32
+ lvx_u v19,r10,r12
+ addi r10,r10,32
+ lvx_u v20,r11,r12
+ addi r11,r11,32
+ lvx_u v21,r10,r12
+ addi r10,r10,32
+ lvx_u v22,r11,r12
+ addi r11,r11,32
+ lvx_u v23,r10,r12
+ addi r10,r10,32
+ lvx_u v24,r11,r12
+ lvx_u v25,r10,r12
+ li r10,-32
+ li r11,-16
+ addi r12,r12,`16*16` ; points at iotas
+ b .Loop_absorb
+
+.align 4
+.Loop_absorb:
+ $UCMP $len,$bsz ; len < bsz?
+ blt .Labsorbed
+
+ sub $len,$len,$bsz ; len -= bsz
+ srwi r0,$bsz,3
+ mtctr r0
+
+ lvx_u v30,r10,r12 ; permutation masks
+ lvx_u v31,r11,r12
+ ?vspltisb v27,7 ; prepare masks for byte swap
+ ?vxor v30,v30,v27 ; on big-endian
+ ?vxor v31,v31,v27
+
+ vxor v27,v27,v27 ; zero
+ lvdx_u v26,0,$inp
+ addi $inp,$inp,8
+ vperm v26,v26,v27,v30
+ vxor v0, v0, v26
+ bdz .Lprocess_block
+ lvdx_u v26,0,$inp
+ addi $inp,$inp,8
+ vperm v26,v26,v27,v30
+ vxor v1, v1, v26
+ bdz .Lprocess_block
+ lvdx_u v26,0,$inp
+ addi $inp,$inp,8
+ vperm v26,v26,v27,v30
+ vxor v2, v2, v26
+ bdz .Lprocess_block
+ lvdx_u v26,0,$inp
+ addi $inp,$inp,8
+ vperm v26,v26,v27,v30
+ vxor v3, v3, v26
+ bdz .Lprocess_block
+ lvdx_u v26,0,$inp
+ addi $inp,$inp,8
+ vperm v26,v26,v27,v30
+ vxor v4, v4, v26
+ bdz .Lprocess_block
+ lvdx_u v26,0,$inp
+ addi $inp,$inp,8
+ vperm v26,v26,v27,v31
+ vxor v0, v0, v26
+ bdz .Lprocess_block
+ lvdx_u v26,0,$inp
+ addi $inp,$inp,8
+ vperm v26,v26,v27,v31
+ vxor v1, v1, v26
+ bdz .Lprocess_block
+ lvdx_u v26,0,$inp
+ addi $inp,$inp,8
+ vperm v26,v26,v27,v31
+ vxor v2, v2, v26
+ bdz .Lprocess_block
+ lvdx_u v26,0,$inp
+ addi $inp,$inp,8
+ vperm v26,v26,v27,v31
+ vxor v3, v3, v26
+ bdz .Lprocess_block
+ lvdx_u v26,0,$inp
+ addi $inp,$inp,8
+ vperm v26,v26,v27,v31
+ vxor v4, v4, v26
+ bdz .Lprocess_block
+ lvdx_u v26,0,$inp
+ addi $inp,$inp,8
+ vperm v26,v26,v27,v30
+ vxor v5, v5, v26
+ bdz .Lprocess_block
+ lvdx_u v26,0,$inp
+ addi $inp,$inp,8
+ vperm v26,v26,v27,v30
+ vxor v6, v6, v26
+ bdz .Lprocess_block
+ lvdx_u v26,0,$inp
+ addi $inp,$inp,8
+ vperm v26,v26,v27,v30
+ vxor v7, v7, v26
+ bdz .Lprocess_block
+ lvdx_u v26,0,$inp
+ addi $inp,$inp,8
+ vperm v26,v26,v27,v30
+ vxor v8, v8, v26
+ bdz .Lprocess_block
+ lvdx_u v26,0,$inp
+ addi $inp,$inp,8
+ vperm v26,v26,v27,v30
+ vxor v9, v9, v26
+ bdz .Lprocess_block
+ lvdx_u v26,0,$inp
+ addi $inp,$inp,8
+ vperm v26,v26,v27,v31
+ vxor v5, v5, v26
+ bdz .Lprocess_block
+ lvdx_u v26,0,$inp
+ addi $inp,$inp,8
+ vperm v26,v26,v27,v31
+ vxor v6, v6, v26
+ bdz .Lprocess_block
+ lvdx_u v26,0,$inp
+ addi $inp,$inp,8
+ vperm v26,v26,v27,v31
+ vxor v7, v7, v26
+ bdz .Lprocess_block
+ lvdx_u v26,0,$inp
+ addi $inp,$inp,8
+ vperm v26,v26,v27,v31
+ vxor v8, v8, v26
+ bdz .Lprocess_block
+ lvdx_u v26,0,$inp
+ addi $inp,$inp,8
+ vperm v26,v26,v27,v31
+ vxor v9, v9, v26
+ bdz .Lprocess_block
+ lvdx_u v26,0,$inp
+ addi $inp,$inp,8
+ vperm v26,v26,v27,v30
+ vxor v10, v10, v26
+ bdz .Lprocess_block
+ lvdx_u v26,0,$inp
+ addi $inp,$inp,8
+ vperm v26,v26,v27,v31
+ vxor v10, v10, v26
+ bdz .Lprocess_block
+ lvdx_u v26,0,$inp
+ addi $inp,$inp,8
+ vperm v26,v26,v27,v30
+ vxor v11, v11, v26
+ bdz .Lprocess_block
+ lvdx_u v26,0,$inp
+ addi $inp,$inp,8
+ vperm v26,v26,v27,v31
+ vxor v11, v11, v26
+ bdz .Lprocess_block
+ lvdx_u v26,0,$inp
+ addi $inp,$inp,8
+ vperm v26,v26,v27,v31
+ vxor v12, v12, v26
+
+.Lprocess_block:
+ bl KeccakF1600_int
+
+ b .Loop_absorb
+
+.align 4
+.Labsorbed:
+ li r11,16
+ stvx_4w v0,0,$A_jagged ; return A[5][5]
+ li r10,32
+ stvx_4w v1,r11,$A_jagged
+ addi r11,r11,32
+ stvx_4w v2,r10,$A_jagged
+ addi r10,r10,32
+ stvx_4w v3,r11,$A_jagged
+ addi r11,r11,32
+ stvx_4w v4,r10,$A_jagged
+ addi r10,r10,32
+ stvx_4w v5,r11,$A_jagged
+ addi r11,r11,32
+ stvx_4w v6,r10,$A_jagged
+ addi r10,r10,32
+ stvx_4w v7,r11,$A_jagged
+ addi r11,r11,32
+ stvx_4w v8,r10,$A_jagged
+ addi r10,r10,32
+ stvx_4w v9,r11,$A_jagged
+ addi r11,r11,32
+ stvx_4w v10,r10,$A_jagged
+ addi r10,r10,32
+ stvx_4w v11,r11,$A_jagged
+ stvdx_u v12,r10,$A_jagged
+
+ mr r3,$len ; return value
+ li r10,`15+6*$SIZE_T`
+ li r11,`31+6*$SIZE_T`
+ mtlr r8
+ mtspr 256, r7 ; restore vrsave
+ lvx v20,r10,$sp
+ addi r10,r10,32
+ lvx v21,r11,$sp
+ addi r11,r11,32
+ lvx v22,r10,$sp
+ addi r10,r10,32
+ lvx v23,r11,$sp
+ addi r11,r11,32
+ lvx v24,r10,$sp
+ addi r10,r10,32
+ lvx v25,r11,$sp
+ addi r11,r11,32
+ lvx v26,r10,$sp
+ addi r10,r10,32
+ lvx v27,r11,$sp
+ addi r11,r11,32
+ lvx v28,r10,$sp
+ addi r10,r10,32
+ lvx v29,r11,$sp
+ addi r11,r11,32
+ lvx v30,r10,$sp
+ lvx v31,r11,$sp
+ addi $sp,$sp,$FRAME
+ blr
+ .long 0
+ .byte 0,12,0x04,1,0x80,0,4,0
+ .long 0
+.size SHA3_absorb,.-SHA3_absorb
+___
+}
+{
+my ($A_jagged,$out,$len,$bsz) = map("r$_",(3..6));
+
+$code.=<<___;
+.globl SHA3_squeeze
+.type SHA3_squeeze,\@function
+.align 5
+SHA3_squeeze:
+ mflr r9 ; r9 is not touched by KeccakF1600
+ subi $out,$out,1 ; prepare for stbu
+ addi r8,$A_jagged,4 ; prepare volatiles
+ mr r10,$bsz
+ li r11,0
+ b .Loop_squeeze
+.align 4
+.Loop_squeeze:
+ lwzx r7,r11,r8 ; lo
+ lwzx r0,r11,$A_jagged ; hi
+ ${UCMP}i $len,8
+ blt .Lsqueeze_tail
+
+ stbu r7,1($out) ; write lo
+ srwi r7,r7,8
+ stbu r7,1($out)
+ srwi r7,r7,8
+ stbu r7,1($out)
+ srwi r7,r7,8
+ stbu r7,1($out)
+ stbu r0,1($out) ; write hi
+ srwi r0,r0,8
+ stbu r0,1($out)
+ srwi r0,r0,8
+ stbu r0,1($out)
+ srwi r0,r0,8
+ stbu r0,1($out)
+
+ subic. $len,$len,8
+ beqlr ; return if done
+
+ subic. r10,r10,8
+ ble .Loutput_expand
+
+ addi r11,r11,16 ; calculate jagged index
+ cmplwi r11,`16*5`
+ blt .Loop_squeeze
+ subi r11,r11,72
+ beq .Loop_squeeze
+ addi r11,r11,72
+ cmplwi r11,`16*5+8`
+ subi r11,r11,8
+ beq .Loop_squeeze
+ addi r11,r11,8
+ cmplwi r11,`16*10`
+ subi r11,r11,72
+ beq .Loop_squeeze
+ addi r11,r11,72
+ blt .Loop_squeeze
+ subi r11,r11,8
+ b .Loop_squeeze
+
+.align 4
+.Loutput_expand:
+ bl KeccakF1600
+ mtlr r9
+
+ addi r8,$A_jagged,4 ; restore volatiles
+ mr r10,$bsz
+ li r11,0
+ b .Loop_squeeze
+
+.align 4
+.Lsqueeze_tail:
+ mtctr $len
+ subic. $len,$len,4
+ ble .Loop_tail_lo
+ li r8,4
+ mtctr r8
+.Loop_tail_lo:
+ stbu r7,1($out)
+ srdi r7,r7,8
+ bdnz .Loop_tail_lo
+ ble .Lsqueeze_done
+ mtctr $len
+.Loop_tail_hi:
+ stbu r0,1($out)
+ srdi r0,r0,8
+ bdnz .Loop_tail_hi
+
+.Lsqueeze_done:
+ blr
+ .long 0
+ .byte 0,12,0x14,0,0,0,4,0
+ .long 0
+.size SHA3_squeeze,.-SHA3_squeeze
+___
+}
+$code.=<<___;
+.align 6
+PICmeup:
+ mflr r0
+ bcl 20,31,\$+4
+ mflr r12 ; vvvvvv "distance" between . and 1st data entry
+ addi r12,r12,`64-8`
+ mtlr r0
+ blr
+ .long 0
+ .byte 0,12,0x14,0,0,0,0,0
+ .space `64-9*4`
+.type rhotates,\@object
+.align 6
+rhotates:
+ .quad 0, 36
+ .quad 1, 44
+ .quad 62, 6
+ .quad 28, 55
+ .quad 27, 20
+ .quad 3, 41
+ .quad 10, 45
+ .quad 43, 15
+ .quad 25, 21
+ .quad 39, 8
+ .quad 18, 2
+ .quad 61, 56
+ .quad 14, 14
+.size rhotates,.-rhotates
+ .quad 0,0
+ .quad 0x0001020304050607,0x1011121314151617
+ .quad 0x1011121314151617,0x0001020304050607
+.type iotas,\@object
+iotas:
+ .quad 0x0000000000000001,0
+ .quad 0x0000000000008082,0
+ .quad 0x800000000000808a,0
+ .quad 0x8000000080008000,0
+ .quad 0x000000000000808b,0
+ .quad 0x0000000080000001,0
+ .quad 0x8000000080008081,0
+ .quad 0x8000000000008009,0
+ .quad 0x000000000000008a,0
+ .quad 0x0000000000000088,0
+ .quad 0x0000000080008009,0
+ .quad 0x000000008000000a,0
+ .quad 0x000000008000808b,0
+ .quad 0x800000000000008b,0
+ .quad 0x8000000000008089,0
+ .quad 0x8000000000008003,0
+ .quad 0x8000000000008002,0
+ .quad 0x8000000000000080,0
+ .quad 0x000000000000800a,0
+ .quad 0x800000008000000a,0
+ .quad 0x8000000080008081,0
+ .quad 0x8000000000008080,0
+ .quad 0x0000000080000001,0
+ .quad 0x8000000080008008,0
+.size iotas,.-iotas
+.asciz "Keccak-1600 absorb and squeeze for PowerISA 2.07, CRYPTOGAMS by <appro\@openssl.org>"
+___
+
+foreach (split("\n",$code)) {
+ s/\`([^\`]*)\`/eval $1/ge;
+
+ if ($flavour =~ /le$/) { # little-endian
+ s/\?([a-z]+)/;$1/;
+ } else { # big-endian
+ s/\?([a-z]+)/$1/;
+ }
+
+ print $_,"\n";
+}
+
+close STDOUT;
projects / openssl.git / blobdiff