Date: Mon, 21 May 2018 11:10:09 +0200 From: Solar Designer <solar@...nwall.com> To: john-users@...ts.openwall.com Subject: Re: Incremental mode over 13 characters? On Mon, May 21, 2018 at 12:03:24AM +0100, Eric Watson wrote: > I read that Incremental Mode will use the full printable ASCII character > set and try all possible password lengths from 0 to 13 from the 95 > characters. The maximum length is runtime configurable (up to a compile-time limit currently at 24). It's "MaxLen = 13" in this section in john.conf: # Incremental modes [Incremental:ASCII] File = $JOHN/ascii.chr MinLen = 0 MaxLen = 13 CharCount = 95 You can edit it. Or you can use a different section. As you can see, some other pre-defined incremental modes have MaxLen set differently: [Incremental:Digits] File = $JOHN/digits.chr MinLen = 1 MaxLen = 20 CharCount = 10 > Can JtR use incremental mode with a password which has at most a total > of 22 characters which include special characters if the available > characters are known? A word of up to 22 characters from a list of 16 > characters. > > Eg. A password such as !AbCdEfGhIj*1234, expanded using the same > characters to a total of 22, the characters of which are known but the > order is not. Technically yes, you can set "MaxLen = 22" and generate a custom .chr file corresponding to your character set. But you're not going to get that password cracked, at least in this way and without focusing the attack much more. 16^22 is a lot more than you'd ever search. Alexander
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.