Date: Thu, 19 Jul 2012 20:41:53 +0530 From: Dhiru Kholia <dhiru.kholia@...il.com> To: john-dev@...ts.openwall.com Subject: fast pbkdf2-sha1 OpenCL kernel Hi, I am looking for a fast pbkdf2-sha1 OpenCL kernel which can handle passwords of length 20, salt size 20 and can output key length of 66. 1) Can the wpa-psk kernel work with password size of 20? If not, can it be modified to do the same? I need this for ODF kernel. 2) Currently the output of wpa-psk kernel is 32 bytes, can this be increased to 64 + 2 (= 66)? I need this for ZIP AES kernel. Jim, does you pbkdf2 kernel meet these requirements? Can it be modified to do so? I have written a pbkdf2 kernel which meet all these requirements but it is 5x slower than Lukas's code on CPU and on GPU it is unusable (super super slow). -- Cheers, Dhiru
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