Date: Fri, 3 May 2013 17:03:09 +0530 From: Dhiru Kholia <dhiru.kholia@...il.com> To: john-dev@...ts.openwall.com Subject: Re: zip-opencl On Fri, May 3, 2013 at 4:48 PM, Solar Designer <solar@...nwall.com> wrote: > On Fri, May 03, 2013 at 03:17:17PM +0530, Dhiru Kholia wrote: >> This optimization is now implemented in the CPU "zip" format. >> However, we would need to revert it in case we decide to implement >> decryption and decompression later on. > > No, in that case we'd need to compute the rest of PBKDF2 output in > cmp_exact(). It's quite dumb to compute the full PBKDF2 output right > away simply because we need it once in 65536 passwords tested. I understand now. The two byte verifier will act as the fast check. -- Dhiru
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