Date: Thu, 8 Dec 2011 03:35:28 +0400 From: Solar Designer <solar@...nwall.com> To: john-users@...ts.openwall.com Subject: Re: maximum settings for CHARSET_LENGTH and CHARSET_SCALE On Wed, Dec 07, 2011 at 11:55:05PM +0100, websiteaccess@...il.com wrote: > I want crack password up to 26 letters (lower) and digits (0-9) > In the params.h source file, what is the maximum value for : > > #define CHARSET_MIN '0' <-- zero > #define CHARSET_MAX 'z' > #define CHARSET_SIZE (CHARSET_MAX - CHARSET_MIN + 1) > #define CHARSET_LENGTH 26 <--- I can compile with these value, but I can't generate a charset (Self test failed (pow64of32() overflow) > #define CHARSET_SCALE 36 <--- I can compile with these value (Self test failed (pow64of32() overflow), is 36 too high or not enough ??? For versions up to 1.7.8-jumbo-8 inclusive, the maximum is: #define CHARSET_MIN '0' #define CHARSET_MAX 'z' #define CHARSET_SIZE (CHARSET_MAX - CHARSET_MIN + 1) #define CHARSET_LENGTH 10 #define CHARSET_SCALE 26 That is, you can only go up to length 10 with this charset. For version 1.7.9 (and for 1.7.9-jumbo when we release it), there's practically no maximum for CHARSET_LENGTH (any sane value will do - e.g., 16), and there's no CHARSET_SCALE. I understand that for hash types you're typically cracking you need -jumbo, so either use the settings above (lengths up to 10) or wait for 1.7.9-jumbo. Well, or use these settings for now and use a larger CHARSET_LENGTH once you upgrade to 1.7.9-jumbo. Alexander
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