Without understanding what your code does, I whittled 100 strokes off its length by performing some routine golfic shortenings: 

@z=(sub{$c=pop;$x{$"}=$C{$"}=$";$x{$_}or$x{$C{$k}=$_}=$k=chr
ord(A)+($a+++$c)%26for pop=~/./g,a..z},sub{$h=pop;$r.=$$h{$_}for
pop=~/./g;$r});$z[0]->(thequickbrownfoxjumpsoverthelazydogs,10);
print$z[1]->('ZOCK FWUKLMT BMTE LFQR',\%C).$/

[download]
Fits in a 4-line sig now. :-)

Update: whittled a further 10 strokes.

In reply to Re: ACA JAPH by eyepopslikeamosquito
in thread ACA JAPH by goibhniu

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