des_enc.m4

OpenSSL 0.9.8k 最新版OpenSSL

$7.0:	call	.+8
	sll	$2, 2, $6

	add	%o7,$7.jmp.table-$7.0,$5

	add	$5, $6, $5

	ld	[$5], $5

	jmp	%o7+$5
	nop

$7.7:
	srl	$3, 16, $5
	and	$5, 0xff, $5
	stub	$5, [$1+6]
$7.6:
	srl	$3, 8, $5
	and	$5, 0xff, $5
	stub	$5, [$1+5]
$7.5:
	and	$3, 0xff, $5
	stub	$5, [$1+4]
$7.4:
	srl	$4, 24, $5
	stub	$5, [$1+3]
$7.3:
	srl	$4, 16, $5
	and	$5, 0xff, $5
	stub	$5, [$1+2]
$7.2:
	srl	$4, 8, $5
	and	$5, 0xff, $5
	stub	$5, [$1+1]
$7.1:
	and	$4, 0xff, $5


	ba	$8
	stub	$5, [$1]

	.align 4

$7.jmp.table:

	.word	0
	.word	$7.1-$7.0
	.word	$7.2-$7.0
	.word	$7.3-$7.0
	.word	$7.4-$7.0
	.word	$7.5-$7.0
	.word	$7.6-$7.0
	.word	$7.7-$7.0
})


define(testvalue,{1})

define(register_init, {

! For test purposes:

	sethi	%hi(testvalue), local0
	or	local0, %lo(testvalue), local0

	ifelse($1,{},{}, {mov	local0, $1})
	ifelse($2,{},{}, {mov	local0, $2})
	ifelse($3,{},{}, {mov	local0, $3})
	ifelse($4,{},{}, {mov	local0, $4})
	ifelse($5,{},{}, {mov	local0, $5})
	ifelse($6,{},{}, {mov	local0, $6})
	ifelse($7,{},{}, {mov	local0, $7})
	ifelse($8,{},{}, {mov	local0, $8})

	mov	local0, local1
	mov	local0, local2
	mov	local0, local3
	mov	local0, local4
	mov	local0, local5
	mov	local0, local7
	mov	local0, local6
	mov	local0, out0
	mov	local0, out1
	mov	local0, out2
	mov	local0, out3
	mov	local0, out4
	mov	local0, out5
	mov	local0, global1
	mov	local0, global2
	mov	local0, global3
	mov	local0, global4
	mov	local0, global5

})

.section	".text"

	.align 32

.des_enc:

	! key address in3
	! loads key next encryption/decryption first round from [in4]

	rounds_macro(in5, out5, 1, .des_enc.1, in3, in4, retl)


	.align 32

.des_dec:

	! implemented with out5 as first parameter to avoid
	! register exchange in ede modes

	! key address in4
	! loads key next encryption/decryption first round from [in3]

	rounds_macro(out5, in5, -1, .des_dec.1, in4, in3, retl)



! void DES_encrypt1(data, ks, enc)
! *******************************

	.align 32
	.global DES_encrypt1
	.type	 DES_encrypt1,#function

DES_encrypt1:

	save	%sp, FRAME, %sp

	sethi	%hi(.PIC.DES_SPtrans-1f),global1
	or	global1,%lo(.PIC.DES_SPtrans-1f),global1
1:	call	.+8
	add	%o7,global1,global1
	sub	global1,.PIC.DES_SPtrans-.des_and,out2

	ld	[in0], in5                ! left
	cmp	in2, 0                    ! enc

#ifdef OPENSSL_SYSNAME_ULTRASPARC
	be,pn	%icc, .encrypt.dec        ! enc/dec
#else
	be	.encrypt.dec
#endif
	ld	[in0+4], out5             ! right

	! parameter 6  1/2 for include encryption/decryption
	! parameter 7  1 for move in1 to in3
	! parameter 8  1 for move in3 to in4, 2 for move in4 to in3

	ip_macro(in5, out5, in5, out5, in3, 0, 1, 1)

	rounds_macro(in5, out5, 1, .des_encrypt1.1, in3, in4) ! in4 not used

	fp_macro(in5, out5, 1)            ! 1 for store to [in0]

	ret
	restore

.encrypt.dec:

	add	in1, 120, in3             ! use last subkey for first round

	! parameter 6  1/2 for include encryption/decryption
	! parameter 7  1 for move in1 to in3
	! parameter 8  1 for move in3 to in4, 2 for move in4 to in3

	ip_macro(in5, out5, out5, in5, in4, 2, 0, 1) ! include dec,  ks in4

	fp_macro(out5, in5, 1)            ! 1 for store to [in0]

	ret
	restore

.DES_encrypt1.end:
	.size	 DES_encrypt1,.DES_encrypt1.end-DES_encrypt1


! void DES_encrypt2(data, ks, enc)
!*********************************

	! encrypts/decrypts without initial/final permutation

	.align 32
	.global DES_encrypt2
	.type	 DES_encrypt2,#function

DES_encrypt2:

	save	%sp, FRAME, %sp

	sethi	%hi(.PIC.DES_SPtrans-1f),global1
	or	global1,%lo(.PIC.DES_SPtrans-1f),global1
1:	call	.+8
	add	%o7,global1,global1
	sub	global1,.PIC.DES_SPtrans-.des_and,out2

	! Set sbox address 1 to 6 and rotate halfs 3 left
	! Errors caught by destest? Yes. Still? *NO*

	!sethi	%hi(DES_SPtrans), global1 ! address sbox 1

	!or	global1, %lo(DES_SPtrans), global1  ! sbox 1

	add	global1, 256, global2     ! sbox 2
	add	global1, 512, global3     ! sbox 3

	ld	[in0], out5               ! right
	add	global1, 768, global4     ! sbox 4
	add	global1, 1024, global5    ! sbox 5

	ld	[in0+4], in5              ! left
	add	global1, 1280, local6     ! sbox 6
	add	global1, 1792, out3       ! sbox 8

	! rotate

	sll	in5, 3, local5
	mov	in1, in3                  ! key address to in3

	sll	out5, 3, local7
	srl	in5, 29, in5

	srl	out5, 29, out5
	add	in5, local5, in5

	add	out5, local7, out5
	cmp	in2, 0

	! we use our own stackframe

#ifdef OPENSSL_SYSNAME_ULTRASPARC
	be,pn	%icc, .encrypt2.dec       ! decryption
#else
	be	.encrypt2.dec
#endif
	STPTR	in0, [%sp+BIAS+ARG0+0*ARGSZ]

	ld	[in3], out0               ! key 7531 first round
	mov	LOOPS, out4               ! loop counter

	ld	[in3+4], out1             ! key 8642 first round
	sethi	%hi(0x0000FC00), local5

	call .des_enc
	mov	in3, in4

	! rotate
	sll	in5, 29, in0
	srl	in5, 3, in5
	sll	out5, 29, in1
	add	in5, in0, in5
	srl	out5, 3, out5
	LDPTR	[%sp+BIAS+ARG0+0*ARGSZ], in0
	add	out5, in1, out5
	st	in5, [in0]
	st	out5, [in0+4]

	ret
	restore


.encrypt2.dec:

	add in3, 120, in4

	ld	[in4], out0               ! key 7531 first round
	mov	LOOPS, out4               ! loop counter

	ld	[in4+4], out1             ! key 8642 first round
	sethi	%hi(0x0000FC00), local5

	mov	in5, local1               ! left expected in out5
	mov	out5, in5

	call .des_dec
	mov	local1, out5

.encrypt2.finish:

	! rotate
	sll	in5, 29, in0
	srl	in5, 3, in5
	sll	out5, 29, in1
	add	in5, in0, in5
	srl	out5, 3, out5
	LDPTR	[%sp+BIAS+ARG0+0*ARGSZ], in0
	add	out5, in1, out5
	st	out5, [in0]
	st	in5, [in0+4]

	ret
	restore

.DES_encrypt2.end:
	.size	 DES_encrypt2, .DES_encrypt2.end-DES_encrypt2


! void DES_encrypt3(data, ks1, ks2, ks3)
! **************************************

	.align 32
	.global DES_encrypt3
	.type	 DES_encrypt3,#function

DES_encrypt3:

	save	%sp, FRAME, %sp
	
	sethi	%hi(.PIC.DES_SPtrans-1f),global1
	or	global1,%lo(.PIC.DES_SPtrans-1f),global1
1:	call	.+8
	add	%o7,global1,global1
	sub	global1,.PIC.DES_SPtrans-.des_and,out2

	ld	[in0], in5                ! left
	add	in2, 120, in4             ! ks2

	ld	[in0+4], out5             ! right
	mov	in3, in2                  ! save ks3

	! parameter 6  1/2 for include encryption/decryption
	! parameter 7  1 for mov in1 to in3
	! parameter 8  1 for mov in3 to in4
	! parameter 9  1 for load ks3 and ks2 to in4 and in3

	ip_macro(in5, out5, in5, out5, in3, 1, 1, 0, 0)

	call	.des_dec
	mov	in2, in3                  ! preload ks3

	call	.des_enc
	nop

	fp_macro(in5, out5, 1)

	ret
	restore

.DES_encrypt3.end:
	.size	 DES_encrypt3,.DES_encrypt3.end-DES_encrypt3


! void DES_decrypt3(data, ks1, ks2, ks3)
! **************************************

	.align 32
	.global DES_decrypt3
	.type	 DES_decrypt3,#function

DES_decrypt3:

	save	%sp, FRAME, %sp
	
	sethi	%hi(.PIC.DES_SPtrans-1f),global1
	or	global1,%lo(.PIC.DES_SPtrans-1f),global1
1:	call	.+8
	add	%o7,global1,global1
	sub	global1,.PIC.DES_SPtrans-.des_and,out2

	ld	[in0], in5                ! left
	add	in3, 120, in4             ! ks3

	ld	[in0+4], out5             ! right
	mov	in2, in3                  ! ks2

	! parameter 6  1/2 for include encryption/decryption
	! parameter 7  1 for mov in1 to in3
	! parameter 8  1 for mov in3 to in4
	! parameter 9  1 for load ks3 and ks2 to in4 and in3

	ip_macro(in5, out5, out5, in5, in4, 2, 0, 0, 0)

	call	.des_enc
	add	in1, 120, in4             ! preload ks1

	call	.des_dec
	nop

	fp_macro(out5, in5, 1)

	ret
	restore

.DES_decrypt3.end:
	.size	 DES_decrypt3,.DES_decrypt3.end-DES_decrypt3

! void DES_ncbc_encrypt(input, output, length, schedule, ivec, enc)
! *****************************************************************


	.align 32
	.global DES_ncbc_encrypt
	.type	 DES_ncbc_encrypt,#function

DES_ncbc_encrypt:

	save	%sp, FRAME, %sp
	
	define({INPUT},  { [%sp+BIAS+ARG0+0*ARGSZ] })
	define({OUTPUT}, { [%sp+BIAS+ARG0+1*ARGSZ] })
	define({IVEC},   { [%sp+BIAS+ARG0+4*ARGSZ] })

	sethi	%hi(.PIC.DES_SPtrans-1f),global1
	or	global1,%lo(.PIC.DES_SPtrans-1f),global1
1:	call	.+8
	add	%o7,global1,global1
	sub	global1,.PIC.DES_SPtrans-.des_and,out2

	cmp	in5, 0                    ! enc   

#ifdef OPENSSL_SYSNAME_ULTRASPARC
	be,pn	%icc, .ncbc.dec
#else
	be	.ncbc.dec
#endif
	STPTR	in4, IVEC

	! addr  left  right  temp  label
	load_little_endian(in4, in5, out5, local3, .LLE1)  ! iv

	addcc	in2, -8, in2              ! bytes missing when first block done

#ifdef OPENSSL_SYSNAME_ULTRASPARC
	bl,pn	%icc, .ncbc.enc.seven.or.less
#else
	bl	.ncbc.enc.seven.or.less
#endif
	mov	in3, in4                  ! schedule

.ncbc.enc.next.block:

	load_little_endian(in0, out4, global4, local3, .LLE2)  ! block

.ncbc.enc.next.block_1:

	xor	in5, out4, in5            ! iv xor
	xor	out5, global4, out5       ! iv xor

	! parameter 8  1 for move in3 to in4, 2 for move in4 to in3
	ip_macro(in5, out5, in5, out5, in3, 0, 0, 2)

.ncbc.enc.next.block_2:

!//	call .des_enc                     ! compares in2 to 8
!	rounds inlined for alignment purposes

	add	global1, 768, global4     ! address sbox 4 since register used below

	rounds_macro(in5, out5, 1, .ncbc.enc.1, in3, in4) ! include encryption  ks in3

#ifdef OPENSSL_SYSNAME_ULTRASPARC
	bl,pn	%icc, .ncbc.enc.next.block_fp
#else
	bl	.ncbc.enc.next.block_fp
#endif
	add	in0, 8, in0               ! input address

	! If 8 or more bytes are to be encrypted after this block,
	! we combine final permutation for this block with initial
	! permutation for next block. Load next block:

	load_little_endian(in0, global3, global4, local5, .LLE12)

	!  parameter 1   original left
	!  parameter 2   original right
	!  parameter 3   left ip
	!  parameter 4   right ip
	!  parameter 5   1: load ks1/ks2 to in3/in4, add 120 to in4
	!                2: mov in4 to in3
	!
	! also adds -8 to length in2 and loads loop counter to out4

	fp_ip_macro(out0, out1, global3, global4, 2)

	store_little_endian(in1, out0, out1, local3, .SLE10)  ! block

	ld	[in3], out0               ! key 7531 first round next block
	mov 	in5, local1
	xor	global3, out5, in5        ! iv xor next block

	ld	[in3+4], out1             ! key 8642
	add	global1, 512, global3     ! address sbox 3 since register used
	xor	global4, local1, out5     ! iv xor next block

	ba	.ncbc.enc.next.block_2
	add	in1, 8, in1               ! output adress

.ncbc.enc.next.block_fp:

	fp_macro(in5, out5)

	store_little_endian(in1, in5, out5, local3, .SLE1)  ! block

	addcc   in2, -8, in2              ! bytes missing when next block done

#ifdef OPENSSL_SYSNAME_ULTRASPARC
	bpos,pt	%icc, .ncbc.enc.next.block  ! also jumps if 0
#else
	bpos	.ncbc.enc.next.block
#endif
	add	in1, 8, in1

.ncbc.enc.seven.or.less:

	cmp	in2, -8

#ifdef OPENSSL_SYSNAME_ULTRASPARC
	ble,pt	%icc, .ncbc.enc.finish
#else
	ble	.ncbc.enc.finish
#endif
	nop

	add	in2, 8, local1            ! bytes to load

	! addr, length, dest left, dest right, temp, temp2, label, ret label
	load_n_bytes(in0, local1, global4, out4, local2, local3, .LNB1, .ncbc.enc.next.block_1)

	! Loads 1 to 7 bytes little endian to global4, out4


.ncbc.enc.finish: