Viewing Single Post From: Using Mmx Registers For Crypto

Viewing Single Post From: Using Mmx Registers For Crypto
rot13	May 25 2006, 05:08 PM
Elite member Posts: 306 Group: Trusted Member Member #14 Joined: September 29, 2005	I haven't had much need to work down at that level in a long time, but from what I have read, the MMX registers have been used quite successfully for doing crypto. I think the barrier you would hit if you tried to do a 256-bit cipher with them is that you generally need some place to put intermediate results, and if you fill up all 8 registers, you don't have any MMX registers for temporary storage. You'll probably have to copy data around a little bit more than you would like. Someone else may have a better perspective on this.


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