Date: Tue, 16 Mar 2010 14:15:10 +0100 From: SL <auditor@...chat.de> To: john-users@...ts.openwall.com Subject: salted triple-SHA1 Hello Group, is there a (fairly simple) way to teach john following hashing algorithm? sha1($salt.sha1($salt.sha1($pass))) Example: username:password:salt username:e6240f5404d2c1004aed37a66550a5b1ea60c469:b295d117135a9763da282e 7dae73a5ca7d3e5b11 salt="b295d117135a9763da282e7dae73a5ca7d3e5b11" pass="password" echo -n "$salt$(echo -n "$salt$(echo -n "$pass" | openssl sha1)" | openssl sha1)" | openssl sha1 I used "sha1('salt')" as salt, but that doesn't matter. I was thinking of the new generic MD5 mode, modified to SHA1 (such as: username:sha1_gen(1)e6240f5404d2c1004aed37a66550a5b1ea60c469 $b295d117135a9763da282e7dae73a5ca7d3e5b11), but I'm afraid that's beyond my coding skills. I'd give it a go though, if someone could give me a raw sketch of the steps involved. Anyone? Thanks in advance! SL
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