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Re^3: MD5 -- not digest::md5

by ikegami (Pope)
on Aug 15, 2009 at 15:38 UTC ( #788902=note: print w/replies, xml ) Need Help??


in reply to Re^2: MD5 -- not digest::md5
in thread MD5 -- not digest::md5

$b = ($b + (($a + $f + $k[$i] + $w[$g]) << $r[$i])) % (2**32);

Might not give the right result. "The result of overflowing the range of the integers is undefined" according to the docs. You need to do the proper masking *before* the shift, not after.

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