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I've introduced a bug to i386 RC4 assembler, which would emerge with

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certain mix of calls to RC4 routine not covered by rc4test.c.
It's fixed now. In addition this patch inadvertently fixes minor
performance problem: in 0.9.7 context P4 was performing 12% slower
than the original implementation...
This commit is contained in:
Andy Polyakov 2004-12-01 15:28:18 +00:00
parent 1862dae862
commit 7c69478064
1 changed files with 2 additions and 2 deletions
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4
crypto/rc4/asm/rc4-586.pl
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@ -68,13 +68,13 @@ sub RC4_loop
# &mov( $tx, &DWP(0,$d,$x,4)) if $p < 0;
&add( &LB($y), &LB($tx));
&inc( &LB($x)); # NEXT ROUND
&mov( $ty, &DWP(0,$d,$y,4));
# XXX
&mov( &DWP(-4,$d,$x,4),$ty); # AGI
&mov( &DWP(0,$d,$x,4),$ty);
&add( $ty, $tx);
&mov( &DWP(0,$d,$y,4),$tx);
&and( $ty, 0xff);
&inc( &LB($x)); # NEXT ROUND
&mov( $tx, &DWP(0,$d,$x,4)) if $p < 1; # NEXT ROUND
&mov( $ty, &DWP(0,$d,$ty,4));