Re: Decimal encryption

2008-08-28 Thread Hovav Shacham
- Jonathan Katz [EMAIL PROTECTED] wrote: But he probably wants an encryption scheme, not a cipher. Jon, I'm not sure I understand what you mean. If I am reading his message correctly, the original poster seems to be asking for a format-preserving encryption over a domain with 10^40

Re: [cryptography] 5x speedup for AES using SSE5?

2008-08-25 Thread Hovav Shacham
On Aug 24, 2008, at 5:20 AM, Peter Gutmann wrote: Speaking of CPU-specific optimisations, I've seen a few algorithm proposals from the last few years that assume that an algorithm can be scaled linearly in the number of CPU cores, treating a multicore CPU as some kind of SIMD engine with