Date: Thu, 2 Jul 2015 23:40:54 +0300 From: Aleksey Cherepanov <lyosha@...nwall.com> To: john-users@...ts.openwall.com Subject: LM and halves, length limit, does john "attack" halves together? I'd like to know how john handles candidates in relation to halves of LMs? Let's consider "Password1" password. There will be 2 LMs with passwords: PASSWOR and D1 . Does john know that first 7 chars should be cut off? I don't see that in code. But I see a rule for that: # Used for loopback. This rule will produce candidates "PASSWOR" and "D" for # an input of "PASSWORD" (assuming LM, which has halves of length 7). [List.Rules:Split] : -s x** I find "Used for loopback" misleading because john (jumbo) stores truncated passwords in .pot. The rule is for original attack and it should be combined with other rules. Would not it be more convenient to do that in format itself? Thanks! -- Regards, Aleksey Cherepanov
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