From 730387aebda57a1bb0af5a74747d4dadc5e033f7 Mon Sep 17 00:00:00 2001
From: Xu Yizhou <xuyizhou1@huawei.com>
Date: Wed, 18 Jan 2023 09:55:02 +0800
Subject: [PATCH 12/13] SM4 AESE optimization for ARMv8

Signed-off-by: Xu Yizhou <xuyizhou1@huawei.com>

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19914)
---
 crypto/sm4/asm/vpsm4-armv8.pl                 |  458 +++++
 crypto/sm4/asm/vpsm4_ex-armv8.pl              | 1544 +++++++++++++++++
 crypto/sm4/build.info                         |    4 +-
 include/crypto/sm4_platform.h                 |   41 +-
 .../implementations/ciphers/cipher_sm4_hw.c   |   26 +-
 .../implementations/ciphers/cipher_sm4_xts.c  |    4 +-
 .../implementations/ciphers/cipher_sm4_xts.h  |    2 +-
 .../ciphers/cipher_sm4_xts_hw.c               |   33 +-
 8 files changed, 2090 insertions(+), 22 deletions(-)
 create mode 100644 crypto/sm4/asm/vpsm4_ex-armv8.pl

diff --git a/crypto/sm4/asm/vpsm4-armv8.pl b/crypto/sm4/asm/vpsm4-armv8.pl
index 73797af582..e19de30901 100755
--- a/crypto/sm4/asm/vpsm4-armv8.pl
+++ b/crypto/sm4/asm/vpsm4-armv8.pl
@@ -28,6 +28,7 @@ open OUT,"| \"$^X\" $xlate $flavour \"$output\""
 
 $prefix="vpsm4";
 my @vtmp=map("v$_",(0..3));
+my @qtmp=map("q$_",(0..3));
 my @data=map("v$_",(4..7));
 my @datax=map("v$_",(8..11));
 my ($rk0,$rk1)=("v12","v13");
@@ -36,6 +37,7 @@ my @vtmpx=map("v$_",(12..15));
 my @sbox=map("v$_",(16..31));
 my ($inp,$outp,$blocks,$rks)=("x0","x1","w2","x3");
 my ($tmpw,$tmp,$wtmp0,$wtmp1,$wtmp2)=("w6","x6","w7","w8","w9");
+my ($xtmp1,$xtmp2)=("x8","x9");
 my ($ptr,$counter)=("x10","w11");
 my ($word0,$word1,$word2,$word3)=("w12","w13","w14","w15");
 
@@ -60,6 +62,51 @@ ___
 	}
 }
 
+sub rev32_armeb() {
+	my $dst = shift;
+	my $src = shift;
+
+	if ($src and ("$src" ne "$dst")) {
+$code.=<<___;
+#ifdef __AARCH64EB__
+	rev32	$dst.16b,$src.16b
+#else
+	mov	$dst.16b,$src.16b
+#endif
+___
+	} else {
+$code.=<<___;
+#ifdef __AARCH64EB__
+	rev32	$dst.16b,$dst.16b
+#endif
+___
+	}
+}
+
+sub rbit() {
+	my $dst = shift;
+	my $src = shift;
+	my $std = shift;
+
+	if ($src and ("$src" ne "$dst")) {
+		if ($std eq "_gb") {
+$code.=<<___;
+			rbit $dst.16b,$src.16b
+___
+		} else {
+$code.=<<___;
+			mov $dst.16b,$src.16b
+___
+		}
+	} else {
+		if ($std eq "_gb") {
+$code.=<<___;
+			rbit $dst.16b,$src.16b
+___
+		}
+	}
+}
+
 sub transpose() {
 	my ($dat0,$dat1,$dat2,$dat3,$vt0,$vt1,$vt2,$vt3) = @_;
 
@@ -435,6 +482,58 @@ $code.=<<___;
 ___
 }
 
+
+sub mov_reg_to_vec() {
+	my $src0 = shift;
+	my $src1 = shift;
+	my $desv = shift;
+$code.=<<___;
+	mov $desv.d[0],$src0
+	mov $desv.d[1],$src1
+___
+	&rev32_armeb($desv,$desv);
+}
+
+sub mov_vec_to_reg() {
+	my $srcv = shift;
+	my $des0 = shift;
+	my $des1 = shift;
+$code.=<<___;
+	mov $des0,$srcv.d[0]
+	mov $des1,$srcv.d[1]
+___
+}
+
+sub compute_tweak() {
+	my $src0 = shift;
+	my $src1 = shift;
+	my $des0 = shift;
+	my $des1 = shift;
+$code.=<<___;
+	mov $wtmp0,0x87
+	extr	$xtmp2,$src1,$src1,#32
+	extr	$des1,$src1,$src0,#63
+	and	$wtmp1,$wtmp0,$wtmp2,asr#31
+	eor	$des0,$xtmp1,$src0,lsl#1
+___
+}
+
+sub compute_tweak_vec() {
+	my $src = shift;
+	my $des = shift;
+	my $std = shift;
+	&rbit(@vtmp[2],$src,$std);
+$code.=<<___;
+	ldr  @qtmp[0], =0x01010101010101010101010101010187
+	shl  $des.16b, @vtmp[2].16b, #1
+	ext  @vtmp[1].16b, @vtmp[2].16b, @vtmp[2].16b,#15
+	ushr @vtmp[1].16b, @vtmp[1].16b, #7
+	mul  @vtmp[1].16b, @vtmp[1].16b, @vtmp[0].16b
+	eor  $des.16b, $des.16b, @vtmp[1].16b
+___
+	&rbit($des,$des,$std);
+}
+
 $code=<<___;
 #include "arm_arch.h"
 .arch	armv8-a
@@ -1101,6 +1200,365 @@ $code.=<<___;
 .size	${prefix}_ctr32_encrypt_blocks,.-${prefix}_ctr32_encrypt_blocks
 ___
 }}}
+
+{{{
+my ($blocks,$len)=("x2","x2");
+my $ivp=("x5");
+my @twx=map("x$_",(12..27));
+my ($rks1,$rks2)=("x26","x27");
+my $lastBlk=("x26");
+my $enc=("w28");
+my $remain=("x29");
+
+my @tweak=@datax;
+
+sub gen_xts_cipher() {
+	my $std = shift;
+$code.=<<___;
+.globl	${prefix}_xts_encrypt${std}
+.type	${prefix}_xts_encrypt${std},%function
+.align	5
+${prefix}_xts_encrypt${std}:
+	AARCH64_SIGN_LINK_REGISTER
+	stp	x15, x16, [sp, #-0x10]!
+	stp	x17, x18, [sp, #-0x10]!
+	stp	x19, x20, [sp, #-0x10]!
+	stp	x21, x22, [sp, #-0x10]!
+	stp	x23, x24, [sp, #-0x10]!
+	stp	x25, x26, [sp, #-0x10]!
+	stp	x27, x28, [sp, #-0x10]!
+	stp	x29, x30, [sp, #-0x10]!
+	stp	d8, d9, [sp, #-0x10]!
+	stp	d10, d11, [sp, #-0x10]!
+	stp	d12, d13, [sp, #-0x10]!
+	stp	d14, d15, [sp, #-0x10]!
+	mov	$rks1,x3
+	mov	$rks2,x4
+	mov	$enc,w6
+	ld1	{@tweak[0].4s}, [$ivp]
+	mov	$rks,$rks2
+___
+	&load_sbox();
+	&rev32(@tweak[0],@tweak[0]);
+	&encrypt_1blk(@tweak[0]);
+$code.=<<___;
+	mov	$rks,$rks1
+	and	$remain,$len,#0x0F
+	// convert length into blocks
+	lsr	$blocks,$len,4
+	cmp	$blocks,#1
+	b.lt .return${std}
+
+	cmp $remain,0
+	// If the encryption/decryption Length is N times of 16,
+	// the all blocks are encrypted/decrypted in .xts_encrypt_blocks${std}
+	b.eq .xts_encrypt_blocks${std}
+
+	// If the encryption/decryption length is not N times of 16,
+	// the last two blocks are encrypted/decrypted in .last_2blks_tweak${std} or .only_2blks_tweak${std}
+	// the other blocks are encrypted/decrypted in .xts_encrypt_blocks${std}
+	subs $blocks,$blocks,#1
+	b.eq .only_2blks_tweak${std}
+.xts_encrypt_blocks${std}:
+___
+	&rbit(@tweak[0],@tweak[0],$std);
+	&rev32_armeb(@tweak[0],@tweak[0]);
+	&mov_vec_to_reg(@tweak[0],@twx[0],@twx[1]);
+	&compute_tweak(@twx[0],@twx[1],@twx[2],@twx[3]);
+	&compute_tweak(@twx[2],@twx[3],@twx[4],@twx[5]);
+	&compute_tweak(@twx[4],@twx[5],@twx[6],@twx[7]);
+	&compute_tweak(@twx[6],@twx[7],@twx[8],@twx[9]);
+	&compute_tweak(@twx[8],@twx[9],@twx[10],@twx[11]);
+	&compute_tweak(@twx[10],@twx[11],@twx[12],@twx[13]);
+	&compute_tweak(@twx[12],@twx[13],@twx[14],@twx[15]);
+$code.=<<___;
+.Lxts_8_blocks_process${std}:
+	cmp	$blocks,#8
+	b.lt	.Lxts_4_blocks_process${std}
+___
+	&mov_reg_to_vec(@twx[0],@twx[1],@vtmp[0]);
+	&mov_reg_to_vec(@twx[2],@twx[3],@vtmp[1]);
+	&mov_reg_to_vec(@twx[4],@twx[5],@vtmp[2]);
+	&mov_reg_to_vec(@twx[6],@twx[7],@vtmp[3]);
+	&mov_reg_to_vec(@twx[8],@twx[9],@vtmpx[0]);
+	&mov_reg_to_vec(@twx[10],@twx[11],@vtmpx[1]);
+	&mov_reg_to_vec(@twx[12],@twx[13],@vtmpx[2]);
+	&mov_reg_to_vec(@twx[14],@twx[15],@vtmpx[3]);
+$code.=<<___;
+	ld1 {@data[0].4s,@data[1].4s,@data[2].4s,@data[3].4s},[$inp],#64
+___
+	&rbit(@vtmp[0],@vtmp[0],$std);
+	&rbit(@vtmp[1],@vtmp[1],$std);
+	&rbit(@vtmp[2],@vtmp[2],$std);
+	&rbit(@vtmp[3],@vtmp[3],$std);
+$code.=<<___;
+	eor @data[0].16b, @data[0].16b, @vtmp[0].16b
+	eor @data[1].16b, @data[1].16b, @vtmp[1].16b
+	eor @data[2].16b, @data[2].16b, @vtmp[2].16b
+	eor @data[3].16b, @data[3].16b, @vtmp[3].16b
+	ld1	{@datax[0].4s,$datax[1].4s,@datax[2].4s,@datax[3].4s},[$inp],#64
+___
+	&rbit(@vtmpx[0],@vtmpx[0],$std);
+	&rbit(@vtmpx[1],@vtmpx[1],$std);
+	&rbit(@vtmpx[2],@vtmpx[2],$std);
+	&rbit(@vtmpx[3],@vtmpx[3],$std);
+$code.=<<___;
+	eor @datax[0].16b, @datax[0].16b, @vtmpx[0].16b
+	eor @datax[1].16b, @datax[1].16b, @vtmpx[1].16b
+	eor @datax[2].16b, @datax[2].16b, @vtmpx[2].16b
+	eor @datax[3].16b, @datax[3].16b, @vtmpx[3].16b
+___
+	&rev32(@data[0],@data[0]);
+	&rev32(@data[1],@data[1]);
+	&rev32(@data[2],@data[2]);
+	&rev32(@data[3],@data[3]);
+	&rev32(@datax[0],@datax[0]);
+	&rev32(@datax[1],@datax[1]);
+	&rev32(@datax[2],@datax[2]);
+	&rev32(@datax[3],@datax[3]);
+	&transpose(@data,@vtmp);
+	&transpose(@datax,@vtmp);
+$code.=<<___;
+	bl	_${prefix}_enc_8blks
+___
+	&transpose(@vtmp,@datax);
+	&transpose(@data,@datax);
+
+	&mov_reg_to_vec(@twx[0],@twx[1],@vtmpx[0]);
+	&compute_tweak(@twx[14],@twx[15],@twx[0],@twx[1]);
+	&mov_reg_to_vec(@twx[2],@twx[3],@vtmpx[1]);
+	&compute_tweak(@twx[0],@twx[1],@twx[2],@twx[3]);
+	&mov_reg_to_vec(@twx[4],@twx[5],@vtmpx[2]);
+	&compute_tweak(@twx[2],@twx[3],@twx[4],@twx[5]);
+	&mov_reg_to_vec(@twx[6],@twx[7],@vtmpx[3]);
+	&compute_tweak(@twx[4],@twx[5],@twx[6],@twx[7]);
+	&mov_reg_to_vec(@twx[8],@twx[9],@tweak[0]);
+	&compute_tweak(@twx[6],@twx[7],@twx[8],@twx[9]);
+	&mov_reg_to_vec(@twx[10],@twx[11],@tweak[1]);
+	&compute_tweak(@twx[8],@twx[9],@twx[10],@twx[11]);
+	&mov_reg_to_vec(@twx[12],@twx[13],@tweak[2]);
+	&compute_tweak(@twx[10],@twx[11],@twx[12],@twx[13]);
+	&mov_reg_to_vec(@twx[14],@twx[15],@tweak[3]);
+	&compute_tweak(@twx[12],@twx[13],@twx[14],@twx[15]);
+$code.=<<___;
+	eor @vtmp[0].16b, @vtmp[0].16b, @vtmpx[0].16b
+	eor @vtmp[1].16b, @vtmp[1].16b, @vtmpx[1].16b
+	eor @vtmp[2].16b, @vtmp[2].16b, @vtmpx[2].16b
+	eor @vtmp[3].16b, @vtmp[3].16b, @vtmpx[3].16b
+	eor @data[0].16b, @data[0].16b, @tweak[0].16b
+	eor @data[1].16b, @data[1].16b, @tweak[1].16b
+	eor @data[2].16b, @data[2].16b, @tweak[2].16b
+	eor @data[3].16b, @data[3].16b, @tweak[3].16b
+
+	// save the last tweak
+	st1	{@tweak[3].4s},[$ivp]
+	st1	{@vtmp[0].4s,@vtmp[1].4s,@vtmp[2].4s,@vtmp[3].4s},[$outp],#64
+	st1	{@data[0].4s,@data[1].4s,@data[2].4s,@data[3].4s},[$outp],#64
+	subs	$blocks,$blocks,#8
+	b.gt	.Lxts_8_blocks_process${std}
+	b	100f
+.Lxts_4_blocks_process${std}:
+___
+	&mov_reg_to_vec(@twx[0],@twx[1],@tweak[0]);
+	&mov_reg_to_vec(@twx[2],@twx[3],@tweak[1]);
+	&mov_reg_to_vec(@twx[4],@twx[5],@tweak[2]);
+	&mov_reg_to_vec(@twx[6],@twx[7],@tweak[3]);
+$code.=<<___;
+	cmp	$blocks,#4
+	b.lt	1f
+	ld1	{@data[0].4s,@data[1].4s,@data[2].4s,@data[3].4s},[$inp],#64
+___
+	&rbit(@tweak[0],@tweak[0],$std);
+	&rbit(@tweak[1],@tweak[1],$std);
+	&rbit(@tweak[2],@tweak[2],$std);
+	&rbit(@tweak[3],@tweak[3],$std);
+$code.=<<___;
+	eor @data[0].16b, @data[0].16b, @tweak[0].16b
+	eor @data[1].16b, @data[1].16b, @tweak[1].16b
+	eor @data[2].16b, @data[2].16b, @tweak[2].16b
+	eor @data[3].16b, @data[3].16b, @tweak[3].16b
+___
+	&rev32(@data[0],@data[0]);
+	&rev32(@data[1],@data[1]);
+	&rev32(@data[2],@data[2]);
+	&rev32(@data[3],@data[3]);
+	&transpose(@data,@vtmp);
+$code.=<<___;
+	bl	_${prefix}_enc_4blks
+___
+	&transpose(@vtmp,@data);
+$code.=<<___;
+	eor @vtmp[0].16b, @vtmp[0].16b, @tweak[0].16b
+	eor @vtmp[1].16b, @vtmp[1].16b, @tweak[1].16b
+	eor @vtmp[2].16b, @vtmp[2].16b, @tweak[2].16b
+	eor @vtmp[3].16b, @vtmp[3].16b, @tweak[3].16b
+	st1	{@vtmp[0].4s,@vtmp[1].4s,@vtmp[2].4s,@vtmp[3].4s},[$outp],#64
+	sub	$blocks,$blocks,#4
+___
+	&mov_reg_to_vec(@twx[8],@twx[9],@tweak[0]);
+	&mov_reg_to_vec(@twx[10],@twx[11],@tweak[1]);
+	&mov_reg_to_vec(@twx[12],@twx[13],@tweak[2]);
+$code.=<<___;
+	// save the last tweak
+	st1	{@tweak[3].4s},[$ivp]
+1:
+	// process last block
+	cmp	$blocks,#1
+	b.lt	100f
+	b.gt	1f
+	ld1	{@data[0].4s},[$inp],#16
+___
+	&rbit(@tweak[0],@tweak[0],$std);
+$code.=<<___;
+	eor @data[0].16b, @data[0].16b, @tweak[0].16b
+___
+	&rev32(@data[0],@data[0]);
+	&encrypt_1blk(@data[0]);
+$code.=<<___;
+	eor @data[0].16b, @data[0].16b, @tweak[0].16b
+	st1	{@data[0].4s},[$outp],#16
+	// save the last tweak
+	st1	{@tweak[0].4s},[$ivp]
+	b	100f
+1:  // process last 2 blocks
+	cmp	$blocks,#2
+	b.gt	1f
+	ld1	{@data[0].4s,@data[1].4s},[$inp],#32
+___
+	&rbit(@tweak[0],@tweak[0],$std);
+	&rbit(@tweak[1],@tweak[1],$std);
+$code.=<<___;
+	eor @data[0].16b, @data[0].16b, @tweak[0].16b
+	eor @data[1].16b, @data[1].16b, @tweak[1].16b
+___
+	&rev32(@data[0],@data[0]);
+	&rev32(@data[1],@data[1]);
+	&transpose(@data,@vtmp);
+$code.=<<___;
+	bl	_${prefix}_enc_4blks
+___
+	&transpose(@vtmp,@data);
+$code.=<<___;
+	eor @vtmp[0].16b, @vtmp[0].16b, @tweak[0].16b
+	eor @vtmp[1].16b, @vtmp[1].16b, @tweak[1].16b
+	st1	{@vtmp[0].4s,@vtmp[1].4s},[$outp],#32
+	// save the last tweak
+	st1	{@tweak[1].4s},[$ivp]
+	b	100f
+1:  // process last 3 blocks
+	ld1	{@data[0].4s,@data[1].4s,@data[2].4s},[$inp],#48
+___
+	&rbit(@tweak[0],@tweak[0],$std);
+	&rbit(@tweak[1],@tweak[1],$std);
+	&rbit(@tweak[2],@tweak[2],$std);
+$code.=<<___;
+	eor @data[0].16b, @data[0].16b, @tweak[0].16b
+	eor @data[1].16b, @data[1].16b, @tweak[1].16b
+	eor @data[2].16b, @data[2].16b, @tweak[2].16b
+___
+	&rev32(@data[0],@data[0]);
+	&rev32(@data[1],@data[1]);
+	&rev32(@data[2],@data[2]);
+	&transpose(@data,@vtmp);
+$code.=<<___;
+	bl	_${prefix}_enc_4blks
+___
+	&transpose(@vtmp,@data);
+$code.=<<___;
+	eor @vtmp[0].16b, @vtmp[0].16b, @tweak[0].16b
+	eor @vtmp[1].16b, @vtmp[1].16b, @tweak[1].16b
+	eor @vtmp[2].16b, @vtmp[2].16b, @tweak[2].16b
+	st1	{@vtmp[0].4s,@vtmp[1].4s,@vtmp[2].4s},[$outp],#48
+	// save the last tweak
+	st1	{@tweak[2].4s},[$ivp]
+100:
+	cmp $remain,0
+	b.eq .return${std}
+
+// This brance calculates the last two tweaks, 
+// while the encryption/decryption length is larger than 32
+.last_2blks_tweak${std}:
+	ld1	{@tweak[0].4s},[$ivp]
+___
+	&rev32_armeb(@tweak[0],@tweak[0]);
+	&compute_tweak_vec(@tweak[0],@tweak[1],$std);
+	&compute_tweak_vec(@tweak[1],@tweak[2],$std);
+$code.=<<___;
+	b .check_dec${std}
+
+
+// This brance calculates the last two tweaks, 
+// while the encryption/decryption length is equal to 32, who only need two tweaks
+.only_2blks_tweak${std}:
+	mov @tweak[1].16b,@tweak[0].16b
+___
+	&rev32_armeb(@tweak[1],@tweak[1]);
+	&compute_tweak_vec(@tweak[1],@tweak[2]);
+$code.=<<___;
+	b .check_dec${std}
+
+
+// Determine whether encryption or decryption is required.
+// The last two tweaks need to be swapped for decryption.
+.check_dec${std}:
+	// encryption:1 decryption:0
+	cmp $enc,1
+	b.eq .prcess_last_2blks${std}
+	mov @vtmp[0].16B,@tweak[1].16b
+	mov @tweak[1].16B,@tweak[2].16b
+	mov @tweak[2].16B,@vtmp[0].16b
+
+.prcess_last_2blks${std}:
+___
+	&rev32_armeb(@tweak[1],@tweak[1]);
+	&rev32_armeb(@tweak[2],@tweak[2]);
+$code.=<<___;
+	ld1	{@data[0].4s},[$inp],#16
+	eor @data[0].16b, @data[0].16b, @tweak[1].16b
+___
+	&rev32(@data[0],@data[0]);
+	&encrypt_1blk(@data[0]);
+$code.=<<___;
+	eor @data[0].16b, @data[0].16b, @tweak[1].16b
+	st1	{@data[0].4s},[$outp],#16
+
+	sub $lastBlk,$outp,16
+	.loop${std}:
+		subs $remain,$remain,1
+		ldrb	$wtmp0,[$lastBlk,$remain]
+		ldrb	$wtmp1,[$inp,$remain]
+		strb	$wtmp1,[$lastBlk,$remain]
+		strb	$wtmp0,[$outp,$remain]
+	b.gt .loop${std}
+	ld1		{@data[0].4s}, [$lastBlk]	
+	eor @data[0].16b, @data[0].16b, @tweak[2].16b
+___
+	&rev32(@data[0],@data[0]);
+	&encrypt_1blk(@data[0]);
+$code.=<<___;
+	eor @data[0].16b, @data[0].16b, @tweak[2].16b
+	st1		{@data[0].4s}, [$lastBlk]
+.return${std}:
+	ldp		d14, d15, [sp], #0x10
+	ldp		d12, d13, [sp], #0x10
+	ldp		d10, d11, [sp], #0x10
+	ldp		d8, d9, [sp], #0x10
+	ldp		x29, x30, [sp], #0x10
+	ldp		x27, x28, [sp], #0x10
+	ldp		x25, x26, [sp], #0x10
+	ldp		x23, x24, [sp], #0x10
+	ldp		x21, x22, [sp], #0x10
+	ldp		x19, x20, [sp], #0x10
+	ldp		x17, x18, [sp], #0x10
+	ldp		x15, x16, [sp], #0x10
+	AARCH64_VALIDATE_LINK_REGISTER
+	ret
+.size	${prefix}_xts_encrypt${std},.-${prefix}_xts_encrypt${std}
+___
+} # end of gen_xts_cipher
+&gen_xts_cipher("_gb");
+&gen_xts_cipher("");
+}}}
 ########################################
 open SELF,$0;
 while(<SELF>) {
diff --git a/crypto/sm4/asm/vpsm4_ex-armv8.pl b/crypto/sm4/asm/vpsm4_ex-armv8.pl
new file mode 100644
index 0000000000..3d094aa535
--- /dev/null
+++ b/crypto/sm4/asm/vpsm4_ex-armv8.pl
@@ -0,0 +1,1544 @@
+#! /usr/bin/env perl
+# Copyright 2022 The OpenSSL Project Authors. All Rights Reserved.
+#
+# Licensed under the Apache License 2.0 (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
+
+#
+# This module implements SM4 with ASIMD and AESE on AARCH64
+#
+# Dec 2022
+#
+
+# $output is the last argument if it looks like a file (it has an extension)
+# $flavour is the first argument if it doesn't look like a file
+$output = $#ARGV >= 0 && $ARGV[$#ARGV] =~ m|\.\w+$| ? pop : undef;
+$flavour = $#ARGV >= 0 && $ARGV[0] !~ m|\.| ? shift : undef;
+
+$0 =~ m/(.*[\/\\])[^\/\\]+$/; $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\""
+	or die "can't call $xlate: $!";
+*STDOUT=*OUT;
+
+$prefix="vpsm4_ex";
+my @vtmp=map("v$_",(0..3));
+my @qtmp=map("q$_",(0..3));
+my @data=map("v$_",(4..7));
+my @datax=map("v$_",(8..11));
+my ($rk0,$rk1)=("v12","v13");
+my ($rka,$rkb)=("v14","v15");
+my @vtmpx=map("v$_",(12..15));
+my ($vtmp4,$vtmp5)=("v24","v25");
+my ($MaskV,$TAHMatV,$TALMatV,$ATAHMatV,$ATALMatV,$ANDMaskV)=("v26","v27","v28","v29","v30","v31");
+my ($MaskQ,$TAHMatQ,$TALMatQ,$ATAHMatQ,$ATALMatQ,$ANDMaskQ)=("q26","q27","q28","q29","q30","q31");
+
+my ($inp,$outp,$blocks,$rks)=("x0","x1","w2","x3");
+my ($tmpw,$tmp,$wtmp0,$wtmp1,$wtmp2)=("w6","x6","w7","w8","w9");
+my ($xtmp1,$xtmp2)=("x8","x9");
+my ($ptr,$counter)=("x10","w11");
+my ($word0,$word1,$word2,$word3)=("w12","w13","w14","w15");
+
+sub rev32() {
+	my $dst = shift;
+	my $src = shift;
+
+	if ($src and ("$src" ne "$dst")) {
+$code.=<<___;
+#ifndef __AARCH64EB__
+	rev32	$dst.16b,$src.16b
+#else
+	mov	$dst.16b,$src.16b
+#endif
+___
+	} else {
+$code.=<<___;
+#ifndef __AARCH64EB__
+	rev32	$dst.16b,$dst.16b
+#endif
+___
+	}
+}
+
+sub rev32_armeb() {
+	my $dst = shift;
+	my $src = shift;
+
+	if ($src and ("$src" ne "$dst")) {
+$code.=<<___;
+#ifdef __AARCH64EB__
+	rev32	$dst.16b,$src.16b
+#else
+	mov	$dst.16b,$src.16b
+#endif
+___
+	} else {
+$code.=<<___;
+#ifdef __AARCH64EB__
+	rev32	$dst.16b,$dst.16b
+#endif
+___
+	}
+}
+
+sub rbit() {
+	my $dst = shift;
+	my $src = shift;
+	my $std = shift;
+
+	if ($src and ("$src" ne "$dst")) {
+		if ($std eq "_gb") {
+$code.=<<___;
+			rbit $dst.16b,$src.16b
+___
+		} else {
+$code.=<<___;
+			mov $dst.16b,$src.16b
+___
+		}
+	} else {
+		if ($std eq "_gb") {
+$code.=<<___;
+			rbit $dst.16b,$src.16b
+___
+		}
+	}
+}
+
+sub transpose() {
+	my ($dat0,$dat1,$dat2,$dat3,$vt0,$vt1,$vt2,$vt3) = @_;
+
+$code.=<<___;
+	zip1	$vt0.4s,$dat0.4s,$dat1.4s
+	zip2	$vt1.4s,$dat0.4s,$dat1.4s
+	zip1	$vt2.4s,$dat2.4s,$dat3.4s
+	zip2	$vt3.4s,$dat2.4s,$dat3.4s
+	zip1	$dat0.2d,$vt0.2d,$vt2.2d
+	zip2	$dat1.2d,$vt0.2d,$vt2.2d
+	zip1	$dat2.2d,$vt1.2d,$vt3.2d
+	zip2	$dat3.2d,$vt1.2d,$vt3.2d
+___
+}
+
+# matrix multiplication Mat*x = (lowerMat*x) ^ (higherMat*x)
+sub mul_matrix() {
+	my $x = shift;
+	my $higherMat = shift;
+	my $lowerMat = shift;
+	my $tmp = shift;
+$code.=<<___;
+	ushr	$tmp.16b, $x.16b, 4
+	and		$x.16b, $x.16b, $ANDMaskV.16b
+	tbl		$x.16b, {$lowerMat.16b}, $x.16b
+	tbl		$tmp.16b, {$higherMat.16b}, $tmp.16b
+	eor		$x.16b, $x.16b, $tmp.16b
+___
+}
+
+# sbox operations for 4-lane of words
+# sbox operation for 4-lane of words
+sub sbox() {
+	my $dat = shift;
+
+$code.=<<___;
+	// optimize sbox using AESE instruction
+	tbl	@vtmp[0].16b, {$dat.16b}, $MaskV.16b
+___
+	&mul_matrix(@vtmp[0], $TAHMatV, $TALMatV, $vtmp4);
+$code.=<<___;
+	eor @vtmp[1].16b, @vtmp[1].16b, @vtmp[1].16b
+	aese @vtmp[0].16b,@vtmp[1].16b
+___
+	&mul_matrix(@vtmp[0], $ATAHMatV, $ATALMatV, $vtmp4);
+$code.=<<___;
+	mov	$dat.16b,@vtmp[0].16b
+
+	// linear transformation
+	ushr	@vtmp[0].4s,$dat.4s,32-2
+	ushr	@vtmp[1].4s,$dat.4s,32-10
+	ushr	@vtmp[2].4s,$dat.4s,32-18
+	ushr	@vtmp[3].4s,$dat.4s,32-24
+	sli	@vtmp[0].4s,$dat.4s,2
+	sli	@vtmp[1].4s,$dat.4s,10
+	sli	@vtmp[2].4s,$dat.4s,18
+	sli	@vtmp[3].4s,$dat.4s,24
+	eor	$vtmp4.16b,@vtmp[0].16b,$dat.16b
+	eor	$vtmp4.16b,$vtmp4.16b,$vtmp[1].16b
+	eor	$dat.16b,@vtmp[2].16b,@vtmp[3].16b
+	eor	$dat.16b,$dat.16b,$vtmp4.16b
+___
+}
+
+# sbox operation for 8-lane of words
+sub sbox_double() {
+	my $dat = shift;
+	my $datx = shift;
+
+$code.=<<___;
+	// optimize sbox using AESE instruction
+	tbl	@vtmp[0].16b, {$dat.16b}, $MaskV.16b
+	tbl	@vtmp[1].16b, {$datx.16b}, $MaskV.16b
+___
+	&mul_matrix(@vtmp[0], $TAHMatV, $TALMatV, $vtmp4);
+	&mul_matrix(@vtmp[1], $TAHMatV, $TALMatV, $vtmp4);
+$code.=<<___;
+	eor $vtmp5.16b, $vtmp5.16b, $vtmp5.16b
+	aese @vtmp[0].16b,$vtmp5.16b
+	aese @vtmp[1].16b,$vtmp5.16b
+___
+	&mul_matrix(@vtmp[0], $ATAHMatV, $ATALMatV,$vtmp4);
+	&mul_matrix(@vtmp[1], $ATAHMatV, $ATALMatV,$vtmp4);
+$code.=<<___;
+	mov	$dat.16b,@vtmp[0].16b
+	mov	$datx.16b,@vtmp[1].16b
+
+	// linear transformation
+	ushr	@vtmp[0].4s,$dat.4s,32-2
+	ushr	$vtmp5.4s,$datx.4s,32-2
+	ushr	@vtmp[1].4s,$dat.4s,32-10
+	ushr	@vtmp[2].4s,$dat.4s,32-18
+	ushr	@vtmp[3].4s,$dat.4s,32-24
+	sli	@vtmp[0].4s,$dat.4s,2
+	sli	$vtmp5.4s,$datx.4s,2
+	sli	@vtmp[1].4s,$dat.4s,10
+	sli	@vtmp[2].4s,$dat.4s,18
+	sli	@vtmp[3].4s,$dat.4s,24
+	eor	$vtmp4.16b,@vtmp[0].16b,$dat.16b
+	eor	$vtmp4.16b,$vtmp4.16b,@vtmp[1].16b
+	eor	$dat.16b,@vtmp[2].16b,@vtmp[3].16b
+	eor	$dat.16b,$dat.16b,$vtmp4.16b
+	ushr	@vtmp[1].4s,$datx.4s,32-10
+	ushr	@vtmp[2].4s,$datx.4s,32-18
+	ushr	@vtmp[3].4s,$datx.4s,32-24
+	sli	@vtmp[1].4s,$datx.4s,10
+	sli	@vtmp[2].4s,$datx.4s,18
+	sli	@vtmp[3].4s,$datx.4s,24
+	eor	$vtmp4.16b,$vtmp5.16b,$datx.16b
+	eor	$vtmp4.16b,$vtmp4.16b,@vtmp[1].16b
+	eor	$datx.16b,@vtmp[2].16b,@vtmp[3].16b
+	eor	$datx.16b,$datx.16b,$vtmp4.16b
+___
+}
+
+# sbox operation for one single word
+sub sbox_1word () {
+	my $word = shift;
+
+$code.=<<___;
+	mov	@vtmp[3].s[0],$word
+	// optimize sbox using AESE instruction
+	tbl	@vtmp[0].16b, {@vtmp[3].16b}, $MaskV.16b
+___
+	&mul_matrix(@vtmp[0], $TAHMatV, $TALMatV, @vtmp[2]);
+$code.=<<___;
+	eor @vtmp[1].16b, @vtmp[1].16b, @vtmp[1].16b
+	aese @vtmp[0].16b,@vtmp[1].16b
+___
+	&mul_matrix(@vtmp[0], $ATAHMatV, $ATALMatV, @vtmp[2]);
+$code.=<<___;
+
+	mov	$wtmp0,@vtmp[0].s[0]
+	eor	$word,$wtmp0,$wtmp0,ror #32-2
+	eor	$word,$word,$wtmp0,ror #32-10
+	eor	$word,$word,$wtmp0,ror #32-18
+	eor	$word,$word,$wtmp0,ror #32-24
+___
+}
+
+# sm4 for one block of data, in scalar registers word0/word1/word2/word3
+sub sm4_1blk () {
+	my $kptr = shift;
+
+$code.=<<___;
+	ldp	$wtmp0,$wtmp1,[$kptr],8
+	// B0 ^= SBOX(B1 ^ B2 ^ B3 ^ RK0)
+	eor	$tmpw,$word2,$word3
+	eor	$wtmp2,$wtmp0,$word1
+	eor	$tmpw,$tmpw,$wtmp2
+___
+	&sbox_1word($tmpw);
+$code.=<<___;
+	eor	$word0,$word0,$tmpw
+	// B1 ^= SBOX(B0 ^ B2 ^ B3 ^ RK1)
+	eor	$tmpw,$word2,$word3
+	eor	$wtmp2,$word0,$wtmp1
+	eor	$tmpw,$tmpw,$wtmp2
+___
+	&sbox_1word($tmpw);
+$code.=<<___;
+	ldp	$wtmp0,$wtmp1,[$kptr],8
+	eor	$word1,$word1,$tmpw
+	// B2 ^= SBOX(B0 ^ B1 ^ B3 ^ RK2)
+	eor	$tmpw,$word0,$word1
+	eor	$wtmp2,$wtmp0,$word3
+	eor	$tmpw,$tmpw,$wtmp2
+___
+	&sbox_1word($tmpw);
+$code.=<<___;
+	eor	$word2,$word2,$tmpw
+	// B3 ^= SBOX(B0 ^ B1 ^ B2 ^ RK3)
+	eor	$tmpw,$word0,$word1
+	eor	$wtmp2,$word2,$wtmp1
+	eor	$tmpw,$tmpw,$wtmp2
+___
+	&sbox_1word($tmpw);
+$code.=<<___;
+	eor	$word3,$word3,$tmpw
+___
+}
+
+# sm4 for 4-lanes of data, in neon registers data0/data1/data2/data3
+sub sm4_4blks () {
+	my $kptr = shift;
+
+$code.=<<___;
+	ldp	$wtmp0,$wtmp1,[$kptr],8
+	dup	$rk0.4s,$wtmp0
+	dup	$rk1.4s,$wtmp1
+
+	// B0 ^= SBOX(B1 ^ B2 ^ B3 ^ RK0)
+	eor	$rka.16b,@data[2].16b,@data[3].16b
+	eor	$rk0.16b,@data[1].16b,$rk0.16b
+	eor	$rk0.16b,$rka.16b,$rk0.16b
+___
+	&sbox($rk0);
+$code.=<<___;
+	eor	@data[0].16b,@data[0].16b,$rk0.16b
+
+	// B1 ^= SBOX(B0 ^ B2 ^ B3 ^ RK1)
+	eor	$rka.16b,$rka.16b,@data[0].16b
+	eor	$rk1.16b,$rka.16b,$rk1.16b
+___
+	&sbox($rk1);
+$code.=<<___;
+	ldp	$wtmp0,$wtmp1,[$kptr],8
+	eor	@data[1].16b,@data[1].16b,$rk1.16b
+
+	dup	$rk0.4s,$wtmp0
+	dup	$rk1.4s,$wtmp1
+
+	// B2 ^= SBOX(B0 ^ B1 ^ B3 ^ RK2)
+	eor	$rka.16b,@data[0].16b,@data[1].16b
+	eor	$rk0.16b,@data[3].16b,$rk0.16b
+	eor	$rk0.16b,$rka.16b,$rk0.16b
+___
+	&sbox($rk0);
+$code.=<<___;
+	eor	@data[2].16b,@data[2].16b,$rk0.16b
+
+	// B3 ^= SBOX(B0 ^ B1 ^ B2 ^ RK3)
+	eor	$rka.16b,$rka.16b,@data[2].16b
+	eor	$rk1.16b,$rka.16b,$rk1.16b
+___
+	&sbox($rk1);
+$code.=<<___;
+	eor	@data[3].16b,@data[3].16b,$rk1.16b
+___
+}
+
+# sm4 for 8 lanes of data, in neon registers
+# data0/data1/data2/data3 datax0/datax1/datax2/datax3
+sub sm4_8blks () {
+	my $kptr = shift;
+
+$code.=<<___;
+	ldp	$wtmp0,$wtmp1,[$kptr],8
+	// B0 ^= SBOX(B1 ^ B2 ^ B3 ^ RK0)
+	dup	$rk0.4s,$wtmp0
+	eor	$rka.16b,@data[2].16b,@data[3].16b
+	eor	$rkb.16b,@datax[2].16b,@datax[3].16b
+	eor	@vtmp[0].16b,@data[1].16b,$rk0.16b
+	eor	@vtmp[1].16b,@datax[1].16b,$rk0.16b
+	eor	$rk0.16b,$rka.16b,@vtmp[0].16b
+	eor	$rk1.16b,$rkb.16b,@vtmp[1].16b
+___
+	&sbox_double($rk0,$rk1);
+$code.=<<___;
+	eor	@data[0].16b,@data[0].16b,$rk0.16b
+	eor	@datax[0].16b,@datax[0].16b,$rk1.16b
+
+	// B1 ^= SBOX(B0 ^ B2 ^ B3 ^ RK1)
+	dup	$rk1.4s,$wtmp1
+	eor	$rka.16b,$rka.16b,@data[0].16b
+	eor	$rkb.16b,$rkb.16b,@datax[0].16b
+	eor	$rk0.16b,$rka.16b,$rk1.16b
+	eor	$rk1.16b,$rkb.16b,$rk1.16b
+___
+	&sbox_double($rk0,$rk1);
+$code.=<<___;
+	ldp	$wtmp0,$wtmp1,[$kptr],8
+	eor	@data[1].16b,@data[1].16b,$rk0.16b
+	eor	@datax[1].16b,@datax[1].16b,$rk1.16b
+
+	// B2 ^= SBOX(B0 ^ B1 ^ B3 ^ RK2)
+	dup	$rk0.4s,$wtmp0
+	eor	$rka.16b,@data[0].16b,@data[1].16b
+	eor	$rkb.16b,@datax[0].16b,@datax[1].16b
+	eor	@vtmp[0].16b,@data[3].16b,$rk0.16b
+	eor	@vtmp[1].16b,@datax[3].16b,$rk0.16b
+	eor	$rk0.16b,$rka.16b,@vtmp[0].16b
+	eor	$rk1.16b,$rkb.16b,@vtmp[1].16b
+___
+	&sbox_double($rk0,$rk1);
+$code.=<<___;
+	eor	@data[2].16b,@data[2].16b,$rk0.16b
+	eor	@datax[2].16b,@datax[2].16b,$rk1.16b
+
+	// B3 ^= SBOX(B0 ^ B1 ^ B2 ^ RK3)
+	dup	$rk1.4s,$wtmp1
+	eor	$rka.16b,$rka.16b,@data[2].16b
+	eor	$rkb.16b,$rkb.16b,@datax[2].16b
+	eor	$rk0.16b,$rka.16b,$rk1.16b
+	eor	$rk1.16b,$rkb.16b,$rk1.16b
+___
+	&sbox_double($rk0,$rk1);
+$code.=<<___;
+	eor	@data[3].16b,@data[3].16b,$rk0.16b
+	eor	@datax[3].16b,@datax[3].16b,$rk1.16b
+___
+}
+
+sub encrypt_1blk_norev() {
+	my $dat = shift;
+
+$code.=<<___;
+	mov	$ptr,$rks
+	mov	$counter,#8
+	mov	$word0,$dat.s[0]
+	mov	$word1,$dat.s[1]
+	mov	$word2,$dat.s[2]
+	mov	$word3,$dat.s[3]
+10:
+___
+	&sm4_1blk($ptr);
+$code.=<<___;
+	subs	$counter,$counter,#1
+	b.ne	10b
+	mov	$dat.s[0],$word3
+	mov	$dat.s[1],$word2
+	mov	$dat.s[2],$word1
+	mov	$dat.s[3],$word0
+___
+}
+
+sub encrypt_1blk() {
+	my $dat = shift;
+
+	&encrypt_1blk_norev($dat);
+	&rev32($dat,$dat);
+}
+
+sub encrypt_4blks() {
+$code.=<<___;
+	mov	$ptr,$rks
+	mov	$counter,#8
+10:
+___
+	&sm4_4blks($ptr);
+$code.=<<___;
+	subs	$counter,$counter,#1
+	b.ne	10b
+___
+	&rev32(@vtmp[3],@data[0]);
+	&rev32(@vtmp[2],@data[1]);
+	&rev32(@vtmp[1],@data[2]);
+	&rev32(@vtmp[0],@data[3]);
+}
+
+sub encrypt_8blks() {
+$code.=<<___;
+	mov	$ptr,$rks
+	mov	$counter,#8
+10:
+___
+	&sm4_8blks($ptr);
+$code.=<<___;
+	subs	$counter,$counter,#1
+	b.ne	10b
+___
+	&rev32(@vtmp[3],@data[0]);
+	&rev32(@vtmp[2],@data[1]);
+	&rev32(@vtmp[1],@data[2]);
+	&rev32(@vtmp[0],@data[3]);
+	&rev32(@data[3],@datax[0]);
+	&rev32(@data[2],@datax[1]);
+	&rev32(@data[1],@datax[2]);
+	&rev32(@data[0],@datax[3]);
+}
+
+sub load_sbox () {
+	my $data = shift;
+
+$code.=<<___;
+	ldr $MaskQ,	   =0x0306090c0f0205080b0e0104070a0d00
+	ldr $TAHMatQ,	=0x22581a6002783a4062185a2042387a00
+	ldr $TALMatQ,	=0xc10bb67c4a803df715df62a89e54e923
+	ldr $ATAHMatQ,   =0x1407c6d56c7fbeadb9aa6b78c1d21300
+	ldr $ATALMatQ,   =0xe383c1a1fe9edcbc6404462679195b3b
+	ldr $ANDMaskQ,	=0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f
+___
+}
+
+sub mov_reg_to_vec() {
+	my $src0 = shift;
+	my $src1 = shift;
+	my $desv = shift;
+$code.=<<___;
+	mov $desv.d[0],$src0
+	mov $desv.d[1],$src1
+___
+	&rev32_armeb($desv,$desv);
+}
+
+sub mov_vec_to_reg() {
+	my $srcv = shift;
+	my $des0 = shift;
+	my $des1 = shift;
+$code.=<<___;
+	mov $des0,$srcv.d[0]
+	mov $des1,$srcv.d[1]
+___
+}
+
+sub compute_tweak() {
+	my $src0 = shift;
+	my $src1 = shift;
+	my $des0 = shift;
+	my $des1 = shift;
+$code.=<<___;
+	mov $wtmp0,0x87
+	extr	$xtmp2,$src1,$src1,#32
+	extr	$des1,$src1,$src0,#63
+	and	$wtmp1,$wtmp0,$wtmp2,asr#31
+	eor	$des0,$xtmp1,$src0,lsl#1
+___
+}
+
+sub compute_tweak_vec() {
+	my $src = shift;
+	my $des = shift;
+	my $std = shift;
+	&rbit(@vtmp[2],$src,$std);
+$code.=<<___;
+	ldr  @qtmp[0], =0x01010101010101010101010101010187
+	shl  $des.16b, @vtmp[2].16b, #1
+	ext  @vtmp[1].16b, @vtmp[2].16b, @vtmp[2].16b,#15
+	ushr @vtmp[1].16b, @vtmp[1].16b, #7
+	mul  @vtmp[1].16b, @vtmp[1].16b, @vtmp[0].16b
+	eor  $des.16b, $des.16b, @vtmp[1].16b
+___
+	&rbit($des,$des,$std);
+}
+
+$code=<<___;
+#include "arm_arch.h"
+.arch	armv8-a+crypto
+.text
+
+.type	_${prefix}_consts,%object
+.align	7
+_${prefix}_consts:
+.Lck:
+	.long 0x00070E15, 0x1C232A31, 0x383F464D, 0x545B6269
+	.long 0x70777E85, 0x8C939AA1, 0xA8AFB6BD, 0xC4CBD2D9
+	.long 0xE0E7EEF5, 0xFC030A11, 0x181F262D, 0x343B4249
+	.long 0x50575E65, 0x6C737A81, 0x888F969D, 0xA4ABB2B9
+	.long 0xC0C7CED5, 0xDCE3EAF1, 0xF8FF060D, 0x141B2229
+	.long 0x30373E45, 0x4C535A61, 0x686F767D, 0x848B9299
+	.long 0xA0A7AEB5, 0xBCC3CAD1, 0xD8DFE6ED, 0xF4FB0209
+	.long 0x10171E25, 0x2C333A41, 0x484F565D, 0x646B7279
+.Lfk:
+	.dword 0x56aa3350a3b1bac6,0xb27022dc677d9197
+.Lshuffles:
+	.dword 0x0B0A090807060504,0x030201000F0E0D0C
+
+.size	_${prefix}_consts,.-_${prefix}_consts
+___
+
+{{{
+my ($key,$keys,$enc)=("x0","x1","w2");
+my ($pointer,$schedules,$wtmp,$roundkey)=("x5","x6","w7","w8");
+my ($vkey,$vfk,$vmap)=("v5","v6","v7");
+$code.=<<___;
+.type	_${prefix}_set_key,%function
+.align	4
+_${prefix}_set_key:
+	AARCH64_VALID_CALL_TARGET
+	ld1	{$vkey.4s},[$key]
+___
+	&load_sbox();
+	&rev32($vkey,$vkey);
+$code.=<<___;
+	adr	$pointer,.Lshuffles
+	ld1	{$vmap.2d},[$pointer]
+	adr	$pointer,.Lfk
+	ld1	{$vfk.2d},[$pointer]
+	eor	$vkey.16b,$vkey.16b,$vfk.16b
+	mov	$schedules,#32
+	adr	$pointer,.Lck
+	movi	@vtmp[0].16b,#64
+	cbnz	$enc,1f
+	add	$keys,$keys,124
+1:
+	mov	$wtmp,$vkey.s[1]
+	ldr	$roundkey,[$pointer],#4
+	eor	$roundkey,$roundkey,$wtmp
+	mov	$wtmp,$vkey.s[2]
+	eor	$roundkey,$roundkey,$wtmp
+	mov	$wtmp,$vkey.s[3]
+	eor	$roundkey,$roundkey,$wtmp
+	// optimize sbox using AESE instruction
+	mov	@data[0].s[0],$roundkey
+	tbl	@vtmp[0].16b, {@data[0].16b}, $MaskV.16b
+___
+	&mul_matrix(@vtmp[0], $TAHMatV, $TALMatV, @vtmp[2]);
+$code.=<<___;
+	eor @vtmp[1].16b, @vtmp[1].16b, @vtmp[1].16b
+	aese @vtmp[0].16b,@vtmp[1].16b
+___
+	&mul_matrix(@vtmp[0], $ATAHMatV, $ATALMatV, @vtmp[2]);
+$code.=<<___;
+	mov	$wtmp,@vtmp[0].s[0]
+	eor	$roundkey,$wtmp,$wtmp,ror #19
+	eor	$roundkey,$roundkey,$wtmp,ror #9
+	mov	$wtmp,$vkey.s[0]
+	eor	$roundkey,$roundkey,$wtmp
+	mov	$vkey.s[0],$roundkey
+	cbz	$enc,2f
+	str	$roundkey,[$keys],#4
+	b	3f
+2:
+	str	$roundkey,[$keys],#-4
+3:
+	tbl	$vkey.16b,{$vkey.16b},$vmap.16b
+	subs	$schedules,$schedules,#1
+	b.ne	1b
+	ret
+.size	_${prefix}_set_key,.-_${prefix}_set_key
+___
+}}}
+
+
+{{{
+$code.=<<___;
+.type	_${prefix}_enc_4blks,%function
+.align	4
+_${prefix}_enc_4blks:
+	AARCH64_VALID_CALL_TARGET
+___
+	&encrypt_4blks();
+$code.=<<___;
+	ret
+.size	_${prefix}_enc_4blks,.-_${prefix}_enc_4blks
+___
+}}}
+
+{{{
+$code.=<<___;
+.type	_${prefix}_enc_8blks,%function
+.align	4
+_${prefix}_enc_8blks:
+	AARCH64_VALID_CALL_TARGET
+___
+	&encrypt_8blks();
+$code.=<<___;
+	ret
+.size	_${prefix}_enc_8blks,.-_${prefix}_enc_8blks
+___
+}}}
+
+
+{{{
+my ($key,$keys)=("x0","x1");
+$code.=<<___;
+.globl	${prefix}_set_encrypt_key
+.type	${prefix}_set_encrypt_key,%function
+.align	5
+${prefix}_set_encrypt_key:
+	AARCH64_SIGN_LINK_REGISTER
+	stp	x29,x30,[sp,#-16]!
+	mov	w2,1
+	bl	_${prefix}_set_key
+	ldp	x29,x30,[sp],#16
+	AARCH64_VALIDATE_LINK_REGISTER
+	ret
+.size	${prefix}_set_encrypt_key,.-${prefix}_set_encrypt_key
+___
+}}}
+
+{{{
+my ($key,$keys)=("x0","x1");
+$code.=<<___;
+.globl	${prefix}_set_decrypt_key
+.type	${prefix}_set_decrypt_key,%function
+.align	5
+${prefix}_set_decrypt_key:
+	AARCH64_SIGN_LINK_REGISTER
+	stp	x29,x30,[sp,#-16]!
+	mov	w2,0
+	bl	_${prefix}_set_key
+	ldp	x29,x30,[sp],#16
+	AARCH64_VALIDATE_LINK_REGISTER
+	ret
+.size	${prefix}_set_decrypt_key,.-${prefix}_set_decrypt_key
+___
+}}}
+
+{{{
+sub gen_block () {
+	my $dir = shift;
+	my ($inp,$outp,$rk)=map("x$_",(0..2));
+
+$code.=<<___;
+.globl	${prefix}_${dir}crypt
+.type	${prefix}_${dir}crypt,%function
+.align	5
+${prefix}_${dir}crypt:
+	AARCH64_VALID_CALL_TARGET
+	ld1	{@data[0].4s},[$inp]
+___
+	&load_sbox();
+	&rev32(@data[0],@data[0]);
+$code.=<<___;
+	mov	$rks,$rk
+___
+	&encrypt_1blk(@data[0]);
+$code.=<<___;
+	st1	{@data[0].4s},[$outp]
+	ret
+.size	${prefix}_${dir}crypt,.-${prefix}_${dir}crypt
+___
+}
+&gen_block("en");
+&gen_block("de");
+}}}
+
+{{{
+$code.=<<___;
+.globl	${prefix}_ecb_encrypt
+.type	${prefix}_ecb_encrypt,%function
+.align	5
+${prefix}_ecb_encrypt:
+	AARCH64_SIGN_LINK_REGISTER
+	// convert length into blocks
+	lsr	x2,x2,4
+	stp	d8,d9,[sp,#-80]!
+	stp	d10,d11,[sp,#16]
+	stp	d12,d13,[sp,#32]
+	stp	d14,d15,[sp,#48]
+	stp	x29,x30,[sp,#64]
+___
+	&load_sbox();
+$code.=<<___;
+.Lecb_8_blocks_process:
+	cmp	$blocks,#8
+	b.lt	.Lecb_4_blocks_process
+	ld4	{@data[0].4s,@data[1].4s,@data[2].4s,@data[3].4s},[$inp],#64
+	ld4	{@datax[0].4s,$datax[1].4s,@datax[2].4s,@datax[3].4s},[$inp],#64
+___
+	&rev32(@data[0],@data[0]);
+	&rev32(@data[1],@data[1]);
+	&rev32(@data[2],@data[2]);
+	&rev32(@data[3],@data[3]);
+	&rev32(@datax[0],@datax[0]);
+	&rev32(@datax[1],@datax[1]);
+	&rev32(@datax[2],@datax[2]);
+	&rev32(@datax[3],@datax[3]);
+$code.=<<___;
+	bl	_${prefix}_enc_8blks
+	st4	{@vtmp[0].4s,@vtmp[1].4s,@vtmp[2].4s,@vtmp[3].4s},[$outp],#64
+	st4	{@data[0].4s,@data[1].4s,@data[2].4s,@data[3].4s},[$outp],#64
+	subs	$blocks,$blocks,#8
+	b.gt	.Lecb_8_blocks_process
+	b	100f
+.Lecb_4_blocks_process:
+	cmp	$blocks,#4
+	b.lt	1f
+	ld4	{@data[0].4s,@data[1].4s,@data[2].4s,@data[3].4s},[$inp],#64
+___
+	&rev32(@data[0],@data[0]);
+	&rev32(@data[1],@data[1]);
+	&rev32(@data[2],@data[2]);
+	&rev32(@data[3],@data[3]);
+$code.=<<___;
+	bl	_${prefix}_enc_4blks
+	st4	{@vtmp[0].4s,@vtmp[1].4s,@vtmp[2].4s,@vtmp[3].4s},[$outp],#64
+	sub	$blocks,$blocks,#4
+1:
+	// process last block
+	cmp	$blocks,#1
+	b.lt	100f
+	b.gt	1f
+	ld1	{@data[0].4s},[$inp]
+___
+	&rev32(@data[0],@data[0]);
+	&encrypt_1blk(@data[0]);
+$code.=<<___;
+	st1	{@data[0].4s},[$outp]
+	b	100f
+1:	// process last 2 blocks
+	ld4	{@data[0].s,@data[1].s,@data[2].s,@data[3].s}[0],[$inp],#16
+	ld4	{@data[0].s,@data[1].s,@data[2].s,@data[3].s}[1],[$inp],#16
+	cmp	$blocks,#2
+	b.gt	1f
+___
+	&rev32(@data[0],@data[0]);
+	&rev32(@data[1],@data[1]);
+	&rev32(@data[2],@data[2]);
+	&rev32(@data[3],@data[3]);
+$code.=<<___;
+	bl	_${prefix}_enc_4blks
+	st4	{@vtmp[0].s-@vtmp[3].s}[0],[$outp],#16
+	st4	{@vtmp[0].s-@vtmp[3].s}[1],[$outp]
+	b	100f
+1:	// process last 3 blocks
+	ld4	{@data[0].s,@data[1].s,@data[2].s,@data[3].s}[2],[$inp],#16
+___
+	&rev32(@data[0],@data[0]);
+	&rev32(@data[1],@data[1]);
+	&rev32(@data[2],@data[2]);
+	&rev32(@data[3],@data[3]);
+$code.=<<___;
+	bl	_${prefix}_enc_4blks
+	st4	{@vtmp[0].s-@vtmp[3].s}[0],[$outp],#16
+	st4	{@vtmp[0].s-@vtmp[3].s}[1],[$outp],#16
+	st4	{@vtmp[0].s-@vtmp[3].s}[2],[$outp]
+100:
+	ldp	d10,d11,[sp,#16]
+	ldp	d12,d13,[sp,#32]
+	ldp	d14,d15,[sp,#48]
+	ldp	x29,x30,[sp,#64]
+	ldp	d8,d9,[sp],#80
+	AARCH64_VALIDATE_LINK_REGISTER
+	ret
+.size	${prefix}_ecb_encrypt,.-${prefix}_ecb_encrypt
+___
+}}}
+
+{{{
+my ($len,$ivp,$enc)=("x2","x4","w5");
+my $ivec0=("v3");
+my $ivec1=("v15");
+
+$code.=<<___;
+.globl	${prefix}_cbc_encrypt
+.type	${prefix}_cbc_encrypt,%function
+.align	5
+${prefix}_cbc_encrypt:
+	AARCH64_VALID_CALL_TARGET
+	lsr	$len,$len,4
+___
+	&load_sbox();
+$code.=<<___;
+	cbz	$enc,.Ldec
+	ld1	{$ivec0.4s},[$ivp]
+.Lcbc_4_blocks_enc:
+	cmp	$blocks,#4
+	b.lt	1f
+	ld1	{@data[0].4s,@data[1].4s,@data[2].4s,@data[3].4s},[$inp],#64
+	eor	@data[0].16b,@data[0].16b,$ivec0.16b
+___
+	&rev32(@data[1],@data[1]);
+	&rev32(@data[0],@data[0]);
+	&rev32(@data[2],@data[2]);
+	&rev32(@data[3],@data[3]);
+	&encrypt_1blk_norev(@data[0]);
+$code.=<<___;
+	eor	@data[1].16b,@data[1].16b,@data[0].16b
+___
+	&encrypt_1blk_norev(@data[1]);
+	&rev32(@data[0],@data[0]);
+
+$code.=<<___;
+	eor	@data[2].16b,@data[2].16b,@data[1].16b
+___
+	&encrypt_1blk_norev(@data[2]);
+	&rev32(@data[1],@data[1]);
+$code.=<<___;
+	eor	@data[3].16b,@data[3].16b,@data[2].16b
+___
+	&encrypt_1blk_norev(@data[3]);
+	&rev32(@data[2],@data[2]);
+	&rev32(@data[3],@data[3]);
+$code.=<<___;
+	orr	$ivec0.16b,@data[3].16b,@data[3].16b
+	st1	{@data[0].4s,@data[1].4s,@data[2].4s,@data[3].4s},[$outp],#64
+	subs	$blocks,$blocks,#4
+	b.ne	.Lcbc_4_blocks_enc
+	b	2f
+1:
+	subs	$blocks,$blocks,#1
+	b.lt	2f
+	ld1	{@data[0].4s},[$inp],#16
+	eor	$ivec0.16b,$ivec0.16b,@data[0].16b
+___
+	&rev32($ivec0,$ivec0);
+	&encrypt_1blk($ivec0);
+$code.=<<___;
+	st1	{$ivec0.4s},[$outp],#16
+	b	1b
+2:
+	// save back IV
+	st1	{$ivec0.4s},[$ivp]
+	ret
+
+.Ldec:
+	// decryption mode starts
+	AARCH64_SIGN_LINK_REGISTER
+	stp	d8,d9,[sp,#-80]!
+	stp	d10,d11,[sp,#16]
+	stp	d12,d13,[sp,#32]
+	stp	d14,d15,[sp,#48]
+	stp	x29,x30,[sp,#64]
+.Lcbc_8_blocks_dec:
+	cmp	$blocks,#8
+	b.lt	1f
+	ld4	{@data[0].4s,@data[1].4s,@data[2].4s,@data[3].4s},[$inp]
+	add	$ptr,$inp,#64
+	ld4	{@datax[0].4s,@datax[1].4s,@datax[2].4s,@datax[3].4s},[$ptr]
+___
+	&rev32(@data[0],@data[0]);
+	&rev32(@data[1],@data[1]);
+	&rev32(@data[2],@data[2]);
+	&rev32(@data[3],$data[3]);
+	&rev32(@datax[0],@datax[0]);
+	&rev32(@datax[1],@datax[1]);
+	&rev32(@datax[2],@datax[2]);
+	&rev32(@datax[3],$datax[3]);
+$code.=<<___;
+	bl	_${prefix}_enc_8blks
+___
+	&transpose(@vtmp,@datax);
+	&transpose(@data,@datax);
+$code.=<<___;
+	ld1	{$ivec1.4s},[$ivp]
+	ld1	{@datax[0].4s,@datax[1].4s,@datax[2].4s,@datax[3].4s},[$inp],#64
+	// note ivec1 and vtmpx[3] are resuing the same register
+	// care needs to be taken to avoid conflict
+	eor	@vtmp[0].16b,@vtmp[0].16b,$ivec1.16b
+	ld1	{@vtmpx[0].4s,@vtmpx[1].4s,@vtmpx[2].4s,@vtmpx[3].4s},[$inp],#64
+	eor	@vtmp[1].16b,@vtmp[1].16b,@datax[0].16b
+	eor	@vtmp[2].16b,@vtmp[2].16b,@datax[1].16b
+	eor	@vtmp[3].16b,$vtmp[3].16b,@datax[2].16b
+	// save back IV
+	st1	{$vtmpx[3].4s}, [$ivp]
+	eor	@data[0].16b,@data[0].16b,$datax[3].16b
+	eor	@data[1].16b,@data[1].16b,@vtmpx[0].16b
+	eor	@data[2].16b,@data[2].16b,@vtmpx[1].16b
+	eor	@data[3].16b,$data[3].16b,@vtmpx[2].16b
+	st1	{@vtmp[0].4s,@vtmp[1].4s,@vtmp[2].4s,@vtmp[3].4s},[$outp],#64
+	st1	{@data[0].4s,@data[1].4s,@data[2].4s,@data[3].4s},[$outp],#64
+	subs	$blocks,$blocks,#8
+	b.gt	.Lcbc_8_blocks_dec
+	b.eq	100f
+1:
+	ld1	{$ivec1.4s},[$ivp]
+.Lcbc_4_blocks_dec:
+	cmp	$blocks,#4
+	b.lt	1f
+	ld4	{@data[0].4s,@data[1].4s,@data[2].4s,@data[3].4s},[$inp]
+___
+	&rev32(@data[0],@data[0]);
+	&rev32(@data[1],@data[1]);
+	&rev32(@data[2],@data[2]);
+	&rev32(@data[3],$data[3]);
+$code.=<<___;
+	bl	_${prefix}_enc_4blks
+	ld1	{@data[0].4s,@data[1].4s,@data[2].4s,@data[3].4s},[$inp],#64
+___
+	&transpose(@vtmp,@datax);
+$code.=<<___;
+	eor	@vtmp[0].16b,@vtmp[0].16b,$ivec1.16b
+	eor	@vtmp[1].16b,@vtmp[1].16b,@data[0].16b
+	orr	$ivec1.16b,@data[3].16b,@data[3].16b
+	eor	@vtmp[2].16b,@vtmp[2].16b,@data[1].16b
+	eor	@vtmp[3].16b,$vtmp[3].16b,@data[2].16b
+	st1	{@vtmp[0].4s,@vtmp[1].4s,@vtmp[2].4s,@vtmp[3].4s},[$outp],#64
+	subs	$blocks,$blocks,#4
+	b.gt	.Lcbc_4_blocks_dec
+	// save back IV
+	st1	{@data[3].4s}, [$ivp]
+	b	100f
+1:	// last block
+	subs	$blocks,$blocks,#1
+	b.lt	100f
+	b.gt	1f
+	ld1	{@data[0].4s},[$inp],#16
+	// save back IV
+	st1	{$data[0].4s}, [$ivp]
+___
+	&rev32(@datax[0],@data[0]);
+	&encrypt_1blk(@datax[0]);
+$code.=<<___;
+	eor	@datax[0].16b,@datax[0].16b,$ivec1.16b
+	st1	{@datax[0].4s},[$outp],#16
+	b	100f
+1:	// last two blocks
+	ld4	{@data[0].s,@data[1].s,@data[2].s,@data[3].s}[0],[$inp]
+	add	$ptr,$inp,#16
+	ld4	{@data[0].s,@data[1].s,@data[2].s,@data[3].s}[1],[$ptr],#16
+	subs	$blocks,$blocks,1
+	b.gt	1f
+___
+	&rev32(@data[0],@data[0]);
+	&rev32(@data[1],@data[1]);
+	&rev32(@data[2],@data[2]);
+	&rev32(@data[3],@data[3]);
+$code.=<<___;
+	bl	_${prefix}_enc_4blks
+	ld1	{@data[0].4s,@data[1].4s},[$inp],#32
+___
+	&transpose(@vtmp,@datax);
+$code.=<<___;
+	eor	@vtmp[0].16b,@vtmp[0].16b,$ivec1.16b
+	eor	@vtmp[1].16b,@vtmp[1].16b,@data[0].16b
+	st1	{@vtmp[0].4s,@vtmp[1].4s},[$outp],#32
+	// save back IV
+	st1	{@data[1].4s}, [$ivp]
+	b	100f
+1:	// last 3 blocks
+	ld4	{@data[0].s,@data[1].s,@data[2].s,@data[3].s}[2],[$ptr]
+___
+	&rev32(@data[0],@data[0]);
+	&rev32(@data[1],@data[1]);
+	&rev32(@data[2],@data[2]);
+	&rev32(@data[3],@data[3]);
+$code.=<<___;
+	bl	_${prefix}_enc_4blks
+	ld1	{@data[0].4s,@data[1].4s,@data[2].4s},[$inp],#48
+___
+	&transpose(@vtmp,@datax);
+$code.=<<___;
+	eor	@vtmp[0].16b,@vtmp[0].16b,$ivec1.16b
+	eor	@vtmp[1].16b,@vtmp[1].16b,@data[0].16b
+	eor	@vtmp[2].16b,@vtmp[2].16b,@data[1].16b
+	st1	{@vtmp[0].4s,@vtmp[1].4s,@vtmp[2].4s},[$outp],#48
+	// save back IV
+	st1	{@data[2].4s}, [$ivp]
+100:
+	ldp	d10,d11,[sp,#16]
+	ldp	d12,d13,[sp,#32]
+	ldp	d14,d15,[sp,#48]
+	ldp	x29,x30,[sp,#64]
+	ldp	d8,d9,[sp],#80
+	AARCH64_VALIDATE_LINK_REGISTER
+	ret
+.size	${prefix}_cbc_encrypt,.-${prefix}_cbc_encrypt
+___
+}}}
+
+{{{
+my ($ivp)=("x4");
+my ($ctr)=("w5");
+my $ivec=("v3");
+
+$code.=<<___;
+.globl	${prefix}_ctr32_encrypt_blocks
+.type	${prefix}_ctr32_encrypt_blocks,%function
+.align	5
+${prefix}_ctr32_encrypt_blocks:
+	AARCH64_VALID_CALL_TARGET
+	ld1	{$ivec.4s},[$ivp]
+___
+	&rev32($ivec,$ivec);
+	&load_sbox();
+$code.=<<___;
+	cmp	$blocks,#1
+	b.ne	1f
+	// fast processing for one single block without
+	// context saving overhead
+___
+	&encrypt_1blk($ivec);
+$code.=<<___;
+	ld1	{@data[0].4s},[$inp]
+	eor	@data[0].16b,@data[0].16b,$ivec.16b
+	st1	{@data[0].4s},[$outp]
+	ret
+1:
+	AARCH64_SIGN_LINK_REGISTER
+	stp	d8,d9,[sp,#-80]!
+	stp	d10,d11,[sp,#16]
+	stp	d12,d13,[sp,#32]
+	stp	d14,d15,[sp,#48]
+	stp	x29,x30,[sp,#64]
+	mov	$word0,$ivec.s[0]
+	mov	$word1,$ivec.s[1]
+	mov	$word2,$ivec.s[2]
+	mov	$ctr,$ivec.s[3]
+.Lctr32_4_blocks_process:
+	cmp	$blocks,#4
+	b.lt	1f
+	dup	@data[0].4s,$word0
+	dup	@data[1].4s,$word1
+	dup	@data[2].4s,$word2
+	mov	@data[3].s[0],$ctr
+	add	$ctr,$ctr,#1
+	mov	$data[3].s[1],$ctr
+	add	$ctr,$ctr,#1
+	mov	@data[3].s[2],$ctr
+	add	$ctr,$ctr,#1
+	mov	@data[3].s[3],$ctr
+	add	$ctr,$ctr,#1
+	cmp	$blocks,#8
+	b.ge	.Lctr32_8_blocks_process
+	bl	_${prefix}_enc_4blks
+	ld4	{@vtmpx[0].4s,@vtmpx[1].4s,@vtmpx[2].4s,@vtmpx[3].4s},[$inp],#64
+	eor	@vtmp[0].16b,@vtmp[0].16b,@vtmpx[0].16b
+	eor	@vtmp[1].16b,@vtmp[1].16b,@vtmpx[1].16b
+	eor	@vtmp[2].16b,@vtmp[2].16b,@vtmpx[2].16b
+	eor	@vtmp[3].16b,@vtmp[3].16b,@vtmpx[3].16b
+	st4	{@vtmp[0].4s,@vtmp[1].4s,@vtmp[2].4s,@vtmp[3].4s},[$outp],#64
+	subs	$blocks,$blocks,#4
+	b.ne	.Lctr32_4_blocks_process
+	b	100f
+.Lctr32_8_blocks_process:
+	dup	@datax[0].4s,$word0
+	dup	@datax[1].4s,$word1
+	dup	@datax[2].4s,$word2
+	mov	@datax[3].s[0],$ctr
+	add	$ctr,$ctr,#1
+	mov	$datax[3].s[1],$ctr
+	add	$ctr,$ctr,#1
+	mov	@datax[3].s[2],$ctr
+	add	$ctr,$ctr,#1
+	mov	@datax[3].s[3],$ctr
+	add	$ctr,$ctr,#1
+	bl	_${prefix}_enc_8blks
+	ld4	{@vtmpx[0].4s,@vtmpx[1].4s,@vtmpx[2].4s,@vtmpx[3].4s},[$inp],#64
+	ld4	{@datax[0].4s,@datax[1].4s,@datax[2].4s,@datax[3].4s},[$inp],#64
+	eor	@vtmp[0].16b,@vtmp[0].16b,@vtmpx[0].16b
+	eor	@vtmp[1].16b,@vtmp[1].16b,@vtmpx[1].16b
+	eor	@vtmp[2].16b,@vtmp[2].16b,@vtmpx[2].16b
+	eor	@vtmp[3].16b,@vtmp[3].16b,@vtmpx[3].16b
+	eor	@data[0].16b,@data[0].16b,@datax[0].16b
+	eor	@data[1].16b,@data[1].16b,@datax[1].16b
+	eor	@data[2].16b,@data[2].16b,@datax[2].16b
+	eor	@data[3].16b,@data[3].16b,@datax[3].16b
+	st4	{@vtmp[0].4s,@vtmp[1].4s,@vtmp[2].4s,@vtmp[3].4s},[$outp],#64
+	st4	{@data[0].4s,@data[1].4s,@data[2].4s,@data[3].4s},[$outp],#64
+	subs	$blocks,$blocks,#8
+	b.ne	.Lctr32_4_blocks_process
+	b	100f
+1:	// last block processing
+	subs	$blocks,$blocks,#1
+	b.lt	100f
+	b.gt	1f
+	mov	$ivec.s[0],$word0
+	mov	$ivec.s[1],$word1
+	mov	$ivec.s[2],$word2
+	mov	$ivec.s[3],$ctr
+___
+	&encrypt_1blk($ivec);
+$code.=<<___;
+	ld1	{@data[0].4s},[$inp]
+	eor	@data[0].16b,@data[0].16b,$ivec.16b
+	st1	{@data[0].4s},[$outp]
+	b	100f
+1:	// last 2 blocks processing
+	dup	@data[0].4s,$word0
+	dup	@data[1].4s,$word1
+	dup	@data[2].4s,$word2
+	mov	@data[3].s[0],$ctr
+	add	$ctr,$ctr,#1
+	mov	@data[3].s[1],$ctr
+	subs	$blocks,$blocks,#1
+	b.ne	1f
+	bl	_${prefix}_enc_4blks
+	ld4	{@vtmpx[0].s,@vtmpx[1].s,@vtmpx[2].s,@vtmpx[3].s}[0],[$inp],#16
+	ld4	{@vtmpx[0].s,@vtmpx[1].s,@vtmpx[2].s,@vtmpx[3].s}[1],[$inp],#16
+	eor	@vtmp[0].16b,@vtmp[0].16b,@vtmpx[0].16b
+	eor	@vtmp[1].16b,@vtmp[1].16b,@vtmpx[1].16b
+	eor	@vtmp[2].16b,@vtmp[2].16b,@vtmpx[2].16b
+	eor	@vtmp[3].16b,@vtmp[3].16b,@vtmpx[3].16b
+	st4	{@vtmp[0].s,@vtmp[1].s,@vtmp[2].s,@vtmp[3].s}[0],[$outp],#16
+	st4	{@vtmp[0].s,@vtmp[1].s,@vtmp[2].s,@vtmp[3].s}[1],[$outp],#16
+	b	100f
+1:	// last 3 blocks processing
+	add	$ctr,$ctr,#1
+	mov	@data[3].s[2],$ctr
+	bl	_${prefix}_enc_4blks
+	ld4	{@vtmpx[0].s,@vtmpx[1].s,@vtmpx[2].s,@vtmpx[3].s}[0],[$inp],#16
+	ld4	{@vtmpx[0].s,@vtmpx[1].s,@vtmpx[2].s,@vtmpx[3].s}[1],[$inp],#16
+	ld4	{@vtmpx[0].s,@vtmpx[1].s,@vtmpx[2].s,@vtmpx[3].s}[2],[$inp],#16
+	eor	@vtmp[0].16b,@vtmp[0].16b,@vtmpx[0].16b
+	eor	@vtmp[1].16b,@vtmp[1].16b,@vtmpx[1].16b
+	eor	@vtmp[2].16b,@vtmp[2].16b,@vtmpx[2].16b
+	eor	@vtmp[3].16b,@vtmp[3].16b,@vtmpx[3].16b
+	st4	{@vtmp[0].s,@vtmp[1].s,@vtmp[2].s,@vtmp[3].s}[0],[$outp],#16
+	st4	{@vtmp[0].s,@vtmp[1].s,@vtmp[2].s,@vtmp[3].s}[1],[$outp],#16
+	st4	{@vtmp[0].s,@vtmp[1].s,@vtmp[2].s,@vtmp[3].s}[2],[$outp],#16
+100:
+	ldp	d10,d11,[sp,#16]
+	ldp	d12,d13,[sp,#32]
+	ldp	d14,d15,[sp,#48]
+	ldp	x29,x30,[sp,#64]
+	ldp	d8,d9,[sp],#80
+	AARCH64_VALIDATE_LINK_REGISTER
+	ret
+.size	${prefix}_ctr32_encrypt_blocks,.-${prefix}_ctr32_encrypt_blocks
+___
+}}}
+
+
+{{{
+my ($blocks,$len)=("x2","x2");
+my $ivp=("x5");
+my @twx=map("x$_",(12..27));
+my ($rks1,$rks2)=("x26","x27");
+my $lastBlk=("x26");
+my $enc=("w28");
+my $remain=("x29");
+
+my @tweak=map("v$_",(16..23));
+my $lastTweak=("v25");
+
+sub gen_xts_cipher() {
+	my $std = shift;
+$code.=<<___;
+.globl	${prefix}_xts_encrypt${std}
+.type	${prefix}_xts_encrypt${std},%function
+.align	5
+${prefix}_xts_encrypt${std}:
+	AARCH64_SIGN_LINK_REGISTER
+	stp	x15, x16, [sp, #-0x10]!
+	stp	x17, x18, [sp, #-0x10]!
+	stp	x19, x20, [sp, #-0x10]!
+	stp	x21, x22, [sp, #-0x10]!
+	stp	x23, x24, [sp, #-0x10]!
+	stp	x25, x26, [sp, #-0x10]!
+	stp	x27, x28, [sp, #-0x10]!
+	stp	x29, x30, [sp, #-0x10]!
+	stp	d8, d9, [sp, #-0x10]!
+	stp	d10, d11, [sp, #-0x10]!
+	stp	d12, d13, [sp, #-0x10]!
+	stp	d14, d15, [sp, #-0x10]!
+	mov	$rks1,x3
+	mov	$rks2,x4
+	mov	$enc,w6
+	ld1	{@tweak[0].4s}, [$ivp]
+	mov	$rks,$rks2
+___
+	&load_sbox();
+	&rev32(@tweak[0],@tweak[0]);
+	&encrypt_1blk(@tweak[0]);
+$code.=<<___;
+	mov	$rks,$rks1
+	and	$remain,$len,#0x0F
+	// convert length into blocks
+	lsr	$blocks,$len,4
+	cmp	$blocks,#1
+	b.lt .return${std}
+
+	cmp $remain,0
+	// If the encryption/decryption Length is N times of 16,
+	// the all blocks are encrypted/decrypted in .xts_encrypt_blocks${std}
+	b.eq .xts_encrypt_blocks${std}
+
+	// If the encryption/decryption length is not N times of 16,
+	// the last two blocks are encrypted/decrypted in .last_2blks_tweak${std} or .only_2blks_tweak${std}
+	// the other blocks are encrypted/decrypted in .xts_encrypt_blocks${std}
+	subs $blocks,$blocks,#1
+	b.eq .only_2blks_tweak${std}
+.xts_encrypt_blocks${std}:
+___
+	&rbit(@tweak[0],@tweak[0],$std);
+	&rev32_armeb(@tweak[0],@tweak[0]);
+	&mov_vec_to_reg(@tweak[0],@twx[0],@twx[1]);
+	&compute_tweak(@twx[0],@twx[1],@twx[2],@twx[3]);
+	&compute_tweak(@twx[2],@twx[3],@twx[4],@twx[5]);
+	&compute_tweak(@twx[4],@twx[5],@twx[6],@twx[7]);
+	&compute_tweak(@twx[6],@twx[7],@twx[8],@twx[9]);
+	&compute_tweak(@twx[8],@twx[9],@twx[10],@twx[11]);
+	&compute_tweak(@twx[10],@twx[11],@twx[12],@twx[13]);
+	&compute_tweak(@twx[12],@twx[13],@twx[14],@twx[15]);
+$code.=<<___;
+.Lxts_8_blocks_process${std}:
+	cmp	$blocks,#8
+___
+	&mov_reg_to_vec(@twx[0],@twx[1],@tweak[0]);
+	&compute_tweak(@twx[14],@twx[15],@twx[0],@twx[1]);
+	&mov_reg_to_vec(@twx[2],@twx[3],@tweak[1]);
+	&compute_tweak(@twx[0],@twx[1],@twx[2],@twx[3]);
+	&mov_reg_to_vec(@twx[4],@twx[5],@tweak[2]);
+	&compute_tweak(@twx[2],@twx[3],@twx[4],@twx[5]);
+	&mov_reg_to_vec(@twx[6],@twx[7],@tweak[3]);
+	&compute_tweak(@twx[4],@twx[5],@twx[6],@twx[7]);
+	&mov_reg_to_vec(@twx[8],@twx[9],@tweak[4]);
+	&compute_tweak(@twx[6],@twx[7],@twx[8],@twx[9]);
+	&mov_reg_to_vec(@twx[10],@twx[11],@tweak[5]);
+	&compute_tweak(@twx[8],@twx[9],@twx[10],@twx[11]);
+	&mov_reg_to_vec(@twx[12],@twx[13],@tweak[6]);
+	&compute_tweak(@twx[10],@twx[11],@twx[12],@twx[13]);
+	&mov_reg_to_vec(@twx[14],@twx[15],@tweak[7]);
+	&compute_tweak(@twx[12],@twx[13],@twx[14],@twx[15]);
+$code.=<<___;
+	b.lt	.Lxts_4_blocks_process${std}
+	ld1 {@data[0].4s,@data[1].4s,@data[2].4s,@data[3].4s},[$inp],#64
+___
+	&rbit(@tweak[0],@tweak[0],$std);
+	&rbit(@tweak[1],@tweak[1],$std);
+	&rbit(@tweak[2],@tweak[2],$std);
+	&rbit(@tweak[3],@tweak[3],$std);
+$code.=<<___;
+	eor @data[0].16b, @data[0].16b, @tweak[0].16b
+	eor @data[1].16b, @data[1].16b, @tweak[1].16b
+	eor @data[2].16b, @data[2].16b, @tweak[2].16b
+	eor @data[3].16b, @data[3].16b, @tweak[3].16b
+	ld1	{@datax[0].4s,$datax[1].4s,@datax[2].4s,@datax[3].4s},[$inp],#64
+___
+	&rbit(@tweak[4],@tweak[4],$std);
+	&rbit(@tweak[5],@tweak[5],$std);
+	&rbit(@tweak[6],@tweak[6],$std);
+	&rbit(@tweak[7],@tweak[7],$std);
+$code.=<<___;
+	eor @datax[0].16b, @datax[0].16b, @tweak[4].16b
+	eor @datax[1].16b, @datax[1].16b, @tweak[5].16b
+	eor @datax[2].16b, @datax[2].16b, @tweak[6].16b
+	eor @datax[3].16b, @datax[3].16b, @tweak[7].16b
+___
+	&rev32(@data[0],@data[0]);
+	&rev32(@data[1],@data[1]);
+	&rev32(@data[2],@data[2]);
+	&rev32(@data[3],@data[3]);
+	&rev32(@datax[0],@datax[0]);
+	&rev32(@datax[1],@datax[1]);
+	&rev32(@datax[2],@datax[2]);
+	&rev32(@datax[3],@datax[3]);
+	&transpose(@data,@vtmp);
+	&transpose(@datax,@vtmp);
+$code.=<<___;
+	bl	_${prefix}_enc_8blks
+___
+	&transpose(@vtmp,@datax);
+	&transpose(@data,@datax);
+$code.=<<___;
+	eor @vtmp[0].16b, @vtmp[0].16b, @tweak[0].16b
+	eor @vtmp[1].16b, @vtmp[1].16b, @tweak[1].16b
+	eor @vtmp[2].16b, @vtmp[2].16b, @tweak[2].16b
+	eor @vtmp[3].16b, @vtmp[3].16b, @tweak[3].16b
+	eor @data[0].16b, @data[0].16b, @tweak[4].16b
+	eor @data[1].16b, @data[1].16b, @tweak[5].16b
+	eor @data[2].16b, @data[2].16b, @tweak[6].16b
+	eor @data[3].16b, @data[3].16b, @tweak[7].16b
+
+	// save the last tweak
+	mov $lastTweak.16b,@tweak[7].16b
+	st1	{@vtmp[0].4s,@vtmp[1].4s,@vtmp[2].4s,@vtmp[3].4s},[$outp],#64
+	st1	{@data[0].4s,@data[1].4s,@data[2].4s,@data[3].4s},[$outp],#64
+	subs	$blocks,$blocks,#8
+	b.gt	.Lxts_8_blocks_process${std}
+	b	100f
+.Lxts_4_blocks_process${std}:
+	cmp	$blocks,#4
+	b.lt	1f
+	ld1	{@data[0].4s,@data[1].4s,@data[2].4s,@data[3].4s},[$inp],#64
+___
+	&rbit(@tweak[0],@tweak[0],$std);
+	&rbit(@tweak[1],@tweak[1],$std);
+	&rbit(@tweak[2],@tweak[2],$std);
+	&rbit(@tweak[3],@tweak[3],$std);
+$code.=<<___;
+	eor @data[0].16b, @data[0].16b, @tweak[0].16b
+	eor @data[1].16b, @data[1].16b, @tweak[1].16b
+	eor @data[2].16b, @data[2].16b, @tweak[2].16b
+	eor @data[3].16b, @data[3].16b, @tweak[3].16b
+___
+	&rev32(@data[0],@data[0]);
+	&rev32(@data[1],@data[1]);
+	&rev32(@data[2],@data[2]);
+	&rev32(@data[3],@data[3]);
+	&transpose(@data,@vtmp);
+$code.=<<___;
+	bl	_${prefix}_enc_4blks
+___
+	&transpose(@vtmp,@data);
+$code.=<<___;
+	eor @vtmp[0].16b, @vtmp[0].16b, @tweak[0].16b
+	eor @vtmp[1].16b, @vtmp[1].16b, @tweak[1].16b
+	eor @vtmp[2].16b, @vtmp[2].16b, @tweak[2].16b
+	eor @vtmp[3].16b, @vtmp[3].16b, @tweak[3].16b
+	st1	{@vtmp[0].4s,@vtmp[1].4s,@vtmp[2].4s,@vtmp[3].4s},[$outp],#64
+	sub	$blocks,$blocks,#4
+	mov @tweak[0].16b,@tweak[4].16b
+	mov @tweak[1].16b,@tweak[5].16b
+	mov @tweak[2].16b,@tweak[6].16b
+	// save the last tweak
+	mov $lastTweak.16b,@tweak[3].16b
+1:
+	// process last block
+	cmp	$blocks,#1
+	b.lt	100f
+	b.gt	1f
+	ld1	{@data[0].4s},[$inp],#16
+___
+	&rbit(@tweak[0],@tweak[0],$std);
+$code.=<<___;
+	eor @data[0].16b, @data[0].16b, @tweak[0].16b
+___
+	&rev32(@data[0],@data[0]);
+	&encrypt_1blk(@data[0]);
+$code.=<<___;
+	eor @data[0].16b, @data[0].16b, @tweak[0].16b
+	st1	{@data[0].4s},[$outp],#16
+	// save the last tweak
+	mov $lastTweak.16b,@tweak[0].16b
+	b	100f
+1:  // process last 2 blocks
+	cmp	$blocks,#2
+	b.gt	1f
+	ld1	{@data[0].4s,@data[1].4s},[$inp],#32
+___
+	&rbit(@tweak[0],@tweak[0],$std);
+	&rbit(@tweak[1],@tweak[1],$std);
+$code.=<<___;
+	eor @data[0].16b, @data[0].16b, @tweak[0].16b
+	eor @data[1].16b, @data[1].16b, @tweak[1].16b
+___
+	&rev32(@data[0],@data[0]);
+	&rev32(@data[1],@data[1]);
+	&transpose(@data,@vtmp);
+$code.=<<___;
+	bl	_${prefix}_enc_4blks
+___
+	&transpose(@vtmp,@data);
+$code.=<<___;
+	eor @vtmp[0].16b, @vtmp[0].16b, @tweak[0].16b
+	eor @vtmp[1].16b, @vtmp[1].16b, @tweak[1].16b
+	st1	{@vtmp[0].4s,@vtmp[1].4s},[$outp],#32
+	// save the last tweak
+	mov $lastTweak.16b,@tweak[1].16b
+	b	100f
+1:  // process last 3 blocks
+	ld1	{@data[0].4s,@data[1].4s,@data[2].4s},[$inp],#48
+___
+	&rbit(@tweak[0],@tweak[0],$std);
+	&rbit(@tweak[1],@tweak[1],$std);
+	&rbit(@tweak[2],@tweak[2],$std);
+$code.=<<___;
+	eor @data[0].16b, @data[0].16b, @tweak[0].16b
+	eor @data[1].16b, @data[1].16b, @tweak[1].16b
+	eor @data[2].16b, @data[2].16b, @tweak[2].16b
+___
+	&rev32(@data[0],@data[0]);
+	&rev32(@data[1],@data[1]);
+	&rev32(@data[2],@data[2]);
+	&transpose(@data,@vtmp);
+$code.=<<___;
+	bl	_${prefix}_enc_4blks
+___
+	&transpose(@vtmp,@data);
+$code.=<<___;
+	eor @vtmp[0].16b, @vtmp[0].16b, @tweak[0].16b
+	eor @vtmp[1].16b, @vtmp[1].16b, @tweak[1].16b
+	eor @vtmp[2].16b, @vtmp[2].16b, @tweak[2].16b
+	st1	{@vtmp[0].4s,@vtmp[1].4s,@vtmp[2].4s},[$outp],#48
+	// save the last tweak
+	mov $lastTweak.16b,@tweak[2].16b
+100:
+	cmp $remain,0
+	b.eq .return${std}
+
+// This brance calculates the last two tweaks, 
+// while the encryption/decryption length is larger than 32
+.last_2blks_tweak${std}:
+___
+	&rev32_armeb($lastTweak,$lastTweak);
+	&compute_tweak_vec($lastTweak,@tweak[1],$std);
+	&compute_tweak_vec(@tweak[1],@tweak[2],$std);
+$code.=<<___;
+	b .check_dec${std}
+
+
+// This brance calculates the last two tweaks, 
+// while the encryption/decryption length is equal to 32, who only need two tweaks
+.only_2blks_tweak${std}:
+	mov @tweak[1].16b,@tweak[0].16b
+___
+	&rev32_armeb(@tweak[1],@tweak[1]);
+	&compute_tweak_vec(@tweak[1],@tweak[2]);
+$code.=<<___;
+	b .check_dec${std}
+
+
+// Determine whether encryption or decryption is required.
+// The last two tweaks need to be swapped for decryption.
+.check_dec${std}:
+	// encryption:1 decryption:0
+	cmp $enc,1
+	b.eq .prcess_last_2blks${std}
+	mov @vtmp[0].16B,@tweak[1].16b
+	mov @tweak[1].16B,@tweak[2].16b
+	mov @tweak[2].16B,@vtmp[0].16b
+
+.prcess_last_2blks${std}:
+___
+	&rev32_armeb(@tweak[1],@tweak[1]);
+	&rev32_armeb(@tweak[2],@tweak[2]);
+$code.=<<___;
+	ld1	{@data[0].4s},[$inp],#16
+	eor @data[0].16b, @data[0].16b, @tweak[1].16b
+___
+	&rev32(@data[0],@data[0]);
+	&encrypt_1blk(@data[0]);
+$code.=<<___;
+	eor @data[0].16b, @data[0].16b, @tweak[1].16b
+	st1	{@data[0].4s},[$outp],#16
+
+	sub $lastBlk,$outp,16
+	.loop${std}:
+		subs $remain,$remain,1
+		ldrb	$wtmp0,[$lastBlk,$remain]
+		ldrb	$wtmp1,[$inp,$remain]
+		strb	$wtmp1,[$lastBlk,$remain]
+		strb	$wtmp0,[$outp,$remain]
+	b.gt .loop${std}
+	ld1		{@data[0].4s}, [$lastBlk]	
+	eor @data[0].16b, @data[0].16b, @tweak[2].16b
+___
+	&rev32(@data[0],@data[0]);
+	&encrypt_1blk(@data[0]);
+$code.=<<___;
+	eor @data[0].16b, @data[0].16b, @tweak[2].16b
+	st1		{@data[0].4s}, [$lastBlk]
+.return${std}:
+	ldp		d14, d15, [sp], #0x10
+	ldp		d12, d13, [sp], #0x10
+	ldp		d10, d11, [sp], #0x10
+	ldp		d8, d9, [sp], #0x10
+	ldp		x29, x30, [sp], #0x10
+	ldp		x27, x28, [sp], #0x10
+	ldp		x25, x26, [sp], #0x10
+	ldp		x23, x24, [sp], #0x10
+	ldp		x21, x22, [sp], #0x10
+	ldp		x19, x20, [sp], #0x10
+	ldp		x17, x18, [sp], #0x10
+	ldp		x15, x16, [sp], #0x10
+	AARCH64_VALIDATE_LINK_REGISTER
+	ret
+.size	${prefix}_xts_encrypt${std},.-${prefix}_xts_encrypt${std}
+___
+} # end of gen_xts_cipher
+&gen_xts_cipher("_gb");
+&gen_xts_cipher("");
+}}}
+
+########################################
+open SELF,$0;
+while(<SELF>) {
+		next if (/^#!/);
+		last if (!s/^#/\/\// and !/^$/);
+		print;
+}
+close SELF;
+
+foreach(split("\n",$code)) {
+	s/\`([^\`]*)\`/eval($1)/ge;
+	print $_,"\n";
+}
+
+close STDOUT or die "error closing STDOUT: $!";
diff --git a/crypto/sm4/build.info b/crypto/sm4/build.info
index 75a215ab80..73ffe5ea09 100644
--- a/crypto/sm4/build.info
+++ b/crypto/sm4/build.info
@@ -2,7 +2,7 @@ LIBS=../../libcrypto
 
 IF[{- !$disabled{asm} -}]
   $SM4DEF_aarch64=SM4_ASM VPSM4_ASM
-  $SM4ASM_aarch64=sm4-armv8.S vpsm4-armv8.S
+  $SM4ASM_aarch64=sm4-armv8.S vpsm4-armv8.S vpsm4_ex-armv8.S
 
   # Now that we have defined all the arch specific variables, use the
   # appropriate one, and define the appropriate macros
@@ -30,5 +30,7 @@ ENDIF
 
 GENERATE[sm4-armv8.S]=asm/sm4-armv8.pl
 GENERATE[vpsm4-armv8.S]=asm/vpsm4-armv8.pl
+GENERATE[vpsm4_ex-armv8.S]=asm/vpsm4_ex-armv8.pl
 INCLUDE[sm4-armv8.o]=..
 INCLUDE[vpsm4-armv8.o]=..
+INCLUDE[vpsm4_ex-armv8.o]=..
diff --git a/include/crypto/sm4_platform.h b/include/crypto/sm4_platform.h
index 15d8abbcb1..8b9cd10f97 100644
--- a/include/crypto/sm4_platform.h
+++ b/include/crypto/sm4_platform.h
@@ -20,11 +20,16 @@ static inline int vpsm4_capable(void)
 {
     return (OPENSSL_armcap_P & ARMV8_CPUID) &&
             (MIDR_IS_CPU_MODEL(OPENSSL_arm_midr, ARM_CPU_IMP_ARM, ARM_CPU_PART_V1) ||
-             MIDR_IS_CPU_MODEL(OPENSSL_arm_midr, ARM_CPU_IMP_ARM, ARM_CPU_PART_N1) ||
-             MIDR_IS_CPU_MODEL(OPENSSL_arm_midr, HISI_CPU_IMP, HISI_CPU_PART_KP920));
+             MIDR_IS_CPU_MODEL(OPENSSL_arm_midr, ARM_CPU_IMP_ARM, ARM_CPU_PART_N1));
+}
+static inline int vpsm4_ex_capable(void)
+{
+    return (OPENSSL_armcap_P & ARMV8_CPUID) &&
+            (MIDR_IS_CPU_MODEL(OPENSSL_arm_midr, HISI_CPU_IMP, HISI_CPU_PART_KP920));
 }
 #    if defined(VPSM4_ASM)
 #     define VPSM4_CAPABLE vpsm4_capable()
+#     define VPSM4_EX_CAPABLE vpsm4_ex_capable()
 #    endif
 #    define HWSM4_CAPABLE (OPENSSL_armcap_P & ARMV8_SM4)
 #    define HWSM4_set_encrypt_key sm4_v8_set_encrypt_key
@@ -56,7 +61,7 @@ void HWSM4_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
                                 const unsigned char ivec[16]);
 # endif /* HWSM4_CAPABLE */
 
-#ifdef VPSM4_CAPABLE
+# ifdef VPSM4_CAPABLE
 int vpsm4_set_encrypt_key(const unsigned char *userKey, SM4_KEY *key);
 int vpsm4_set_decrypt_key(const unsigned char *userKey, SM4_KEY *key);
 void vpsm4_encrypt(const unsigned char *in, unsigned char *out,
@@ -72,7 +77,37 @@ void vpsm4_ecb_encrypt(const unsigned char *in, unsigned char *out,
 void vpsm4_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
                                 size_t len, const void *key,
                                 const unsigned char ivec[16]);
+void vpsm4_xts_encrypt(const unsigned char *in, unsigned char *out,
+                       size_t len, const SM4_KEY *key1, const SM4_KEY *key2,
+                       const unsigned char ivec[16], const int enc);
+void vpsm4_xts_encrypt_gb(const unsigned char *in, unsigned char *out,
+                          size_t len, const SM4_KEY *key1, const SM4_KEY *key2,
+                          const unsigned char ivec[16], const int enc);
 # endif /* VPSM4_CAPABLE */
 
+# ifdef VPSM4_EX_CAPABLE
+int vpsm4_ex_set_encrypt_key(const unsigned char *userKey, SM4_KEY *key);
+int vpsm4_ex_set_decrypt_key(const unsigned char *userKey, SM4_KEY *key);
+void vpsm4_ex_encrypt(const unsigned char *in, unsigned char *out,
+                      const SM4_KEY *key);
+void vpsm4_ex_decrypt(const unsigned char *in, unsigned char *out,
+                      const SM4_KEY *key);
+void vpsm4_ex_cbc_encrypt(const unsigned char *in, unsigned char *out,
+                          size_t length, const SM4_KEY *key,
+                          unsigned char *ivec, const int enc);
+void vpsm4_ex_ecb_encrypt(const unsigned char *in, unsigned char *out,
+                          size_t length, const SM4_KEY *key,
+                          const int enc);
+void vpsm4_ex_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
+                                   size_t len, const void *key,
+                                   const unsigned char ivec[16]);
+void vpsm4_ex_xts_encrypt(const unsigned char *in, unsigned char *out,
+                          size_t len, const SM4_KEY *key1, const SM4_KEY *key2,
+                          const unsigned char ivec[16], const int enc);
+void vpsm4_ex_xts_encrypt_gb(const unsigned char *in, unsigned char *out,
+                             size_t len, const SM4_KEY *key1,
+                             const SM4_KEY *key2, const unsigned char ivec[16],
+                             const int enc);
+# endif /* VPSM4_EX_CAPABLE */
 
 #endif /* OSSL_SM4_PLATFORM_H */
diff --git a/providers/implementations/ciphers/cipher_sm4_hw.c b/providers/implementations/ciphers/cipher_sm4_hw.c
index 9a2e99f67c..8cabd78266 100644
--- a/providers/implementations/ciphers/cipher_sm4_hw.c
+++ b/providers/implementations/ciphers/cipher_sm4_hw.c
@@ -42,6 +42,19 @@ static int cipher_hw_sm4_initkey(PROV_CIPHER_CTX *ctx,
             (void)0;            /* terminate potentially open 'else' */
         } else
 #endif
+#ifdef VPSM4_EX_CAPABLE
+        if (VPSM4_EX_CAPABLE) {
+            vpsm4_ex_set_encrypt_key(key, ks);
+            ctx->block = (block128_f)vpsm4_ex_encrypt;
+            ctx->stream.cbc = NULL;
+            if (ctx->mode == EVP_CIPH_CBC_MODE)
+                ctx->stream.cbc = (cbc128_f)vpsm4_ex_cbc_encrypt;
+            else if (ctx->mode == EVP_CIPH_ECB_MODE)
+                ctx->stream.ecb = (ecb128_f)vpsm4_ex_ecb_encrypt;
+            else if (ctx->mode == EVP_CIPH_CTR_MODE)
+                ctx->stream.ctr = (ctr128_f)vpsm4_ex_ctr32_encrypt_blocks;
+        } else
+#endif
 #ifdef VPSM4_CAPABLE
         if (VPSM4_CAPABLE) {
             vpsm4_set_encrypt_key(key, ks);
@@ -75,6 +88,17 @@ static int cipher_hw_sm4_initkey(PROV_CIPHER_CTX *ctx,
 #endif
         } else
 #endif
+#ifdef VPSM4_EX_CAPABLE
+        if (VPSM4_EX_CAPABLE) {
+            vpsm4_ex_set_decrypt_key(key, ks);
+            ctx->block = (block128_f)vpsm4_ex_decrypt;
+            ctx->stream.cbc = NULL;
+            if (ctx->mode == EVP_CIPH_CBC_MODE)
+                ctx->stream.cbc = (cbc128_f)vpsm4_ex_cbc_encrypt;
+            else if (ctx->mode == EVP_CIPH_ECB_MODE)
+                ctx->stream.ecb = (ecb128_f)vpsm4_ex_ecb_encrypt;
+        } else
+#endif
 #ifdef VPSM4_CAPABLE
         if (VPSM4_CAPABLE) {
             vpsm4_set_decrypt_key(key, ks);
@@ -82,7 +106,7 @@ static int cipher_hw_sm4_initkey(PROV_CIPHER_CTX *ctx,
             ctx->stream.cbc = NULL;
             if (ctx->mode == EVP_CIPH_CBC_MODE)
                 ctx->stream.cbc = (cbc128_f)vpsm4_cbc_encrypt;
-        else if (ctx->mode == EVP_CIPH_ECB_MODE)
+            else if (ctx->mode == EVP_CIPH_ECB_MODE)
                 ctx->stream.ecb = (ecb128_f)vpsm4_ecb_encrypt;
         } else
 #endif
diff --git a/providers/implementations/ciphers/cipher_sm4_xts.c b/providers/implementations/ciphers/cipher_sm4_xts.c
index 3c568d4d18..037055fce8 100644
--- a/providers/implementations/ciphers/cipher_sm4_xts.c
+++ b/providers/implementations/ciphers/cipher_sm4_xts.c
@@ -145,14 +145,14 @@ static int sm4_xts_cipher(void *vctx, unsigned char *out, size_t *outl,
     if (ctx->xts_standard) {
         if (ctx->stream != NULL)
             (*ctx->stream)(in, out, inl, ctx->xts.key1, ctx->xts.key2,
-                           ctx->base.iv);
+                           ctx->base.iv, ctx->base.enc);
         else if (CRYPTO_xts128_encrypt(&ctx->xts, ctx->base.iv, in, out, inl,
                                        ctx->base.enc))
             return 0;
     } else {
         if (ctx->stream_gb != NULL)
             (*ctx->stream_gb)(in, out, inl, ctx->xts.key1, ctx->xts.key2,
-                              ctx->base.iv);
+                              ctx->base.iv, ctx->base.enc);
         else if (ossl_crypto_xts128gb_encrypt(&ctx->xts, ctx->base.iv, in, out,
                                               inl, ctx->base.enc))
             return 0;
diff --git a/providers/implementations/ciphers/cipher_sm4_xts.h b/providers/implementations/ciphers/cipher_sm4_xts.h
index 4c369183e2..cfca596979 100644
--- a/providers/implementations/ciphers/cipher_sm4_xts.h
+++ b/providers/implementations/ciphers/cipher_sm4_xts.h
@@ -14,7 +14,7 @@
 PROV_CIPHER_FUNC(void, xts_stream,
                  (const unsigned char *in, unsigned char *out, size_t len,
                   const SM4_KEY *key1, const SM4_KEY *key2,
-                  const unsigned char iv[16]));
+                  const unsigned char iv[16], const int enc));
 
 typedef struct prov_sm4_xts_ctx_st {
     /* Must be first */
diff --git a/providers/implementations/ciphers/cipher_sm4_xts_hw.c b/providers/implementations/ciphers/cipher_sm4_xts_hw.c
index 403eb879b1..67a9923d94 100644
--- a/providers/implementations/ciphers/cipher_sm4_xts_hw.c
+++ b/providers/implementations/ciphers/cipher_sm4_xts_hw.c
@@ -11,8 +11,7 @@
 
 #define XTS_SET_KEY_FN(fn_set_enc_key, fn_set_dec_key,                         \
                        fn_block_enc, fn_block_dec,                             \
-                       fn_stream_enc, fn_stream_dec,                           \
-                       fn_stream_gb_enc, fn_stream_gb_dec) {                   \
+                       fn_stream, fn_stream_gb) {                              \
     size_t bytes = keylen / 2;                                                 \
                                                                                \
     if (ctx->enc) {                                                            \
@@ -26,8 +25,8 @@
     xctx->xts.block2 = (block128_f)fn_block_enc;                               \
     xctx->xts.key1 = &xctx->ks1;                                               \
     xctx->xts.key2 = &xctx->ks2;                                               \
-    xctx->stream = ctx->enc ? fn_stream_enc : fn_stream_dec;                   \
-    xctx->stream_gb = ctx->enc ? fn_stream_gb_enc : fn_stream_gb_dec;          \
+    xctx->stream = fn_stream;                                                  \
+    xctx->stream_gb = fn_stream_gb;                                            \
 }
 
 static int cipher_hw_sm4_xts_generic_initkey(PROV_CIPHER_CTX *ctx,
@@ -35,23 +34,30 @@ static int cipher_hw_sm4_xts_generic_initkey(PROV_CIPHER_CTX *ctx,
                                              size_t keylen)
 {
     PROV_SM4_XTS_CTX *xctx = (PROV_SM4_XTS_CTX *)ctx;
-    OSSL_xts_stream_fn stream_enc = NULL;
-    OSSL_xts_stream_fn stream_dec = NULL;
-    OSSL_xts_stream_fn stream_gb_enc = NULL;
-    OSSL_xts_stream_fn stream_gb_dec = NULL;
+    OSSL_xts_stream_fn stream = NULL;
+    OSSL_xts_stream_fn stream_gb = NULL;
 #ifdef HWSM4_CAPABLE
     if (HWSM4_CAPABLE) {
         XTS_SET_KEY_FN(HWSM4_set_encrypt_key, HWSM4_set_decrypt_key,
-                       HWSM4_encrypt, HWSM4_decrypt, stream_enc, stream_dec,
-                       stream_gb_enc, stream_gb_dec);
+                       HWSM4_encrypt, HWSM4_decrypt, stream, stream_gb);
         return 1;
     } else
 #endif /* HWSM4_CAPABLE */
+#ifdef VPSM4_EX_CAPABLE
+    if (VPSM4_EX_CAPABLE) {
+        stream = vpsm4_ex_xts_encrypt;
+        stream_gb = vpsm4_ex_xts_encrypt_gb;
+        XTS_SET_KEY_FN(vpsm4_ex_set_encrypt_key, vpsm4_ex_set_decrypt_key,
+                       vpsm4_ex_encrypt, vpsm4_ex_decrypt, stream, stream_gb);
+        return 1;
+    } else
+#endif /* VPSM4_EX_CAPABLE */
 #ifdef VPSM4_CAPABLE
     if (VPSM4_CAPABLE) {
+        stream = vpsm4_xts_encrypt;
+        stream_gb = vpsm4_xts_encrypt_gb;
         XTS_SET_KEY_FN(vpsm4_set_encrypt_key, vpsm4_set_decrypt_key,
-                       vpsm4_encrypt, vpsm4_decrypt, stream_enc, stream_dec,
-                       stream_gb_enc, stream_gb_dec);
+                       vpsm4_encrypt, vpsm4_decrypt, stream, stream_gb);
         return 1;
     } else
 #endif /* VPSM4_CAPABLE */
@@ -60,8 +66,7 @@ static int cipher_hw_sm4_xts_generic_initkey(PROV_CIPHER_CTX *ctx,
     }
     {
         XTS_SET_KEY_FN(ossl_sm4_set_key, ossl_sm4_set_key, ossl_sm4_encrypt,
-                       ossl_sm4_decrypt, stream_enc, stream_dec, stream_gb_enc,
-                       stream_gb_dec);
+                       ossl_sm4_decrypt, stream, stream_gb);
     }
     return 1;
 }
-- 
2.37.3.windows.1

