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KernelTrap: Temporarily Removing x86-Optimized AES

Aug 09, 2004, 08:30 (9 Talkback[s])


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"A recent patch was merged into 2.6.8-rc3 providing an x86-optimized assembly-code implementation of AES. The original version of this code was written by Dr. Brian Gladman in 2001, about which Linus noted, 'I refused the code originally because I didn't feel that Gladman's license was a proper subset of the GPL. I only accepted it after dual-licensing under the GPL had been ok'd by Dr Brian Gladman himself.' Following the announcement that this code had been merged, Jari Ruusu complained that this changed his license without permission. What Jari's actual standing is with the license was called into question, though he did provide patches in late 2001 and early 2002 and continues to maintain loop-aes. The end result was the removal of the current optimized patch, with the intention of rewriting it. Linus noted, 'we'll see just how quickly somebody steps up to the plate. I spent some time taking the original Gladman source into gas format, and have a really ugly (untested) direct conversion if somebody wants to work on it...'"

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