inefficient Des3DkCrypto/DigestMD5Base.setParityBit()

Alan Bateman Alan.Bateman at Sun.COM
Tue Feb 17 15:18:55 UTC 2009

Christian Thalinger wrote:
> Hi!
> While looking at the bitCount() thing I mentioned in the other thread, I
> noticed that Des3DkCrypto and DigestMD5Base are using a very inefficient
> implementation of setParityBit().  The one from DESKeyGenerator is much
> better and uses Integer.bitCount(), which could benefit from a
> population-count intrinsic.
> Should I file a CR or even propose a patch?
> -- Christian
I don't know if the security folks on this mailing list so it might be 
better to send it to security-dev.


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