Date: Thu, 19 Jul 2012 17:38:23 +0200 From: Lukas Odzioba <lukas.odzioba@...il.com> To: john-dev@...ts.openwall.com Subject: Re: fast pbkdf2-sha1 OpenCL kernel 2012/7/19 Dhiru Kholia <dhiru.kholia@...il.com>: > 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). I can prepare for you kernel meeting that requirements, however for OpenCL i suppose that Sayantan's code is faster. Make a decision which kernel you want to use, and let me know then I can start working on more general PBKDF2-SHA1 kernel than this in wpapsk. Lukas
Powered by blists - more mailing lists
Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.