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Date: Wed, 6 May 2015 00:19:08 +0300
From: Aleksey Cherepanov <lyosha@...nwall.com>
To: john-dev@...ts.openwall.com
Subject: Re: get_binary_*() and get_hash_*() methods
On Tue, May 05, 2015 at 10:40:24PM +0200, magnum wrote:
> On 2015-05-05 21:53, Aleksey Cherepanov wrote:
> >Though some formats define get_hash_6 as "return 0;".
>
> Sounds like a bug to me. I think there should be no get_hash_6 in that case
> (ie. the function pointer should be NULL).
I must have confused something with it. Sorry!
Though there is 1 format that can return 0 from get_hash*:
$ grep 'get_hash.*return 0;' JohnTheRipper/src/*
JohnTheRipper/src/office_fmt_plug.c:static int get_hash_0(int index) { if (cur_salt->version!=2007) return 0; return crypt_key[index][0] & 0xf; }
JohnTheRipper/src/office_fmt_plug.c:static int get_hash_1(int index) { if (cur_salt->version!=2007) return 0; return crypt_key[index][0] & 0xff; }
JohnTheRipper/src/office_fmt_plug.c:static int get_hash_2(int index) { if (cur_salt->version!=2007) return 0; return crypt_key[index][0] & 0xfff; }
JohnTheRipper/src/office_fmt_plug.c:static int get_hash_3(int index) { if (cur_salt->version!=2007) return 0; return crypt_key[index][0] & 0xffff; }
JohnTheRipper/src/office_fmt_plug.c:static int get_hash_4(int index) { if (cur_salt->version!=2007) return 0; return crypt_key[index][0] & 0xfffff; }
JohnTheRipper/src/office_fmt_plug.c:static int get_hash_5(int index) { if (cur_salt->version!=2007) return 0; return crypt_key[index][0] & 0xffffff; }
JohnTheRipper/src/office_fmt_plug.c:static int get_hash_6(int index) { if (cur_salt->version!=2007) return 0; return crypt_key[index][0] & 0x7ffffff; }
Formatted get_hash_6():
static int get_hash_6(int index) {
if (cur_salt->version!=2007)
return 0;
return crypt_key[index][0] & 0x7ffffff;
}
Thanks!
--
Regards,
Aleksey Cherepanov
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