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Schneier: We Don't Need SHA-3 143

Posted by Unknown Lamer
from the just-what-nobody-wanted dept.
Trailrunner7 writes with this excerpt from Threatpost: "For the last five years, NIST, the government body charged with developing new standards for computer security, among other things, has been searching for a new hash function to replace the aging SHA-2 function. Five years is a long time, but this is the federal government and things move at their own pace in Washington, but NIST soon will be announcing the winner from the five finalists that were chosen last year. Despite the problems that have cropped up with some versions of SHA-2 in the past and the long wait for the new function, there doesn't seem to be much in the way of breathless anticipation for this announcement. So much so, in fact, that Bruce Schneier, a co-author of one of the finalists not only isn't hoping that his entry wins, he's hoping that none of them wins. ... It's not because Schneier doesn't think the finalists are worthy of winning. In fact, he says, they're all good and fast and perfectly capable. The problem is, he doesn't think that the world needs a new hash function standard at all. SHA-512, the stronger version of the SHA-2 function that's been in use for more than a decade, is still holding up fine, Schneier said, which was not what cryptographers anticipated would be the case when the SHA-3 competition was conceived. 'I expect SHA-2 to be still acceptable for the foreseeable future. That's the problem. It's not like AES. Everyone knew that DES was dead — and triple-DES was too slow and clunky — and we needed something new. So when AES appeared, people switched as soon as they could. This will be different,' Schneier said via email."
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Schneier: We Don't Need SHA-3

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