Commit 673c55a2 authored by Andy Polyakov's avatar Andy Polyakov
Browse files

Latest bn_mont.c modification broke ECDSA test. I've got math wrong, which 

is fixed now.
parent 949ce10e

crypto/bn/asm/alpha-mont.pl

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Original line number Diff line number Diff line
@@ -262,8 +262,6 @@ bn_mul_mont: 
	mov	$rp,$bp		# put rp aside

	mov	sp,$tp

	mov	sp,$ap

	srl	$nj,62,AT	# boundary condition...

	beq	AT,.Lcopy	# ... is met

	mov	0,$hi0		# clear borrow bit



.align	4

crypto/bn/asm/armv4-mont.pl

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Original line number Diff line number Diff line
@@ -163,9 +163,6 @@ bn_mul_mont: 
	mov	$ap,$tp			@ "borrow" $ap

	sub	$np,$np,$aj		@ "rewind" $np to &np[0]



	movs	$tj,$nj,lsr#30		@ boundary condition...

	beq	.Lcopy			@ ... is met



	subs	$tj,$tj,$tj		@ "clear" carry flag

.Lsub:	ldr	$tj,[$tp],#4

	ldr	$nj,[$np],#4

crypto/bn/asm/mips3-mont.pl

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Original line number Diff line number Diff line
@@ -270,9 +270,6 @@ bn_mul_mont: 
	PTR_ADD	$tj,sp,$num	# &tp[num]

	move	$tp,sp

	move	$ap,sp



	dsrl	AT,$nj,62	# boundary condition...

	beqz	AT,.Lcopy	# ... is met

	li	$hi0,0		# clear borrow bit



.align	4

crypto/bn/asm/ppc-mont.pl

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Original line number Diff line number Diff line
@@ -267,13 +267,11 @@ Linner: 
	addi	$i,$i,$BNSZ

	ble-	Louter



	$SHRI.	$nj,$nj,$BITS-2	; check boundary condition

	addi	$num,$num,2	; restore $num

	subfc	$j,$j,$j	; j=0 and "clear" XER[CA]

	addi	$tp,$sp,$FRAME

	addi	$ap,$sp,$FRAME

	mtctr	$num

	beq	Lcopy		; boundary condition is met



.align	4

Lsub:	$LDX	$tj,$tp,$j

crypto/bn/asm/s390x-mont.pl

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Original line number Diff line number Diff line
@@ -183,12 +183,6 @@ $code.=<<___; 
	la	$ap,8($fp)

	lgr	$j,$num



	#lg	$nhi,-8($np)		# buggy assembler

	lghi	$count,-8		# buggy assembler

	lg	$nhi,0($count,$np)	# buggy assembler

	srag	$nhi,$nhi,62	# boundary condition...

	jz	.Lcopy		# ... is met



	lcgr	$count,$num

	sra	$count,3	# incidentally clears "borrow"

.Lsub:	lg	$alo,0($j,$ap)