Date: Mon, 31 Dec 2012 10:39:41 +0530 From: Dhiru Kholia <dhiru.kholia@...il.com> To: john-dev@...ts.openwall.com Subject: Re: Formats dmg, encfs and strip crash on longer passwords On Mon, Dec 31, 2012 at 9:52 AM, magnum <john.magnum@...hmail.com> wrote: > On 31 Dec, 2012, at 5:03 , Dhiru Kholia <dhiru.kholia@...il.com> wrote: >> 4. ZIP files using AES 256-bit encryption require very long PBKDF2 output (upto 66 bytes). Can the new PBKDF2 code do this? Strangely the zip OpenCL handles this just fine! > > As-is, it produces 40 bytes but only 32 are used. It can output up to 40 bytes with a super trivial modification. How do they do more, another bunch of iterations? I just looked at zip_kernel.cl file and after reading it I have *no* clue how it outputs 66 bytes. However, I think it does output 66 bytes. Can you take a look? -- Cheers, Dhiru
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