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Date: Fri, 22 Jun 2012 00:53:30 +0200
From: Frank Dittrich <>
Subject: Re: relbench and changed format names

On 06/22/2012 12:37 AM, Frank Dittrich wrote:
> On 06/22/2012 12:23 AM, Solar Designer wrote:
>> On Fri, Jun 22, 2012 at 12:04:06AM +0200, Frank Dittrich wrote:
>>> This gets tricky because now some formats that used different format
>>> names in jumbo-5 now use the same format name.
>> Oh, perhaps we need to correct that as it'd keep confusing relbench.
> These are the format names:
> $ ./john --list=format-details |cut -f 7|sort |uniq -c|grep -v "^ *1 "
>       2 MySQL
>       2 NT MD4
>       2 Raw SHA-1
> These are the format labels:
> mysql-fast
> mysql
> nt
> nt2
> raw-sha1
> raw-sha1-ng
> $ for f in mysql-fast mysql nt nt2 raw-sha1 raw-sha1-ng;
> do ./john --test=1 --format=$f; done
> Benchmarking: MySQL [32/32 (label mysql-fast)]... DONE
> Raw:	4461K c/s real, 4461K c/s virtual
> Benchmarking: MySQL [32/32 (label mysql)]... DONE
> Raw:	517064 c/s real, 517064 c/s virtual

I wouldn't have to run the test to see the format name and algorithm name:
$ ./john --list=format-details |grep -E '\s(MySQL|NT MD4|Raw
SHA-1)$'|cut -f 1,6,7
mysql-fast	32/32 (label mysql-fast)	MySQL
mysql	32/32 (label mysql)	MySQL
nt	128/128 SSE2 + 32/32	NT MD4
nt2	128/128 SSE2 intrinsics 12x	NT MD4
raw-sha1	128/128 SSE2 intrinsics 8x	Raw SHA-1
raw-sha1-ng	128/128 SSE2 intrinsics 4x	Raw SHA-1

BTW, --list=format-details lists the formats in the sequence they are
registered (same as --list=formats).

And for those who want to adjust the format names, here are the src files:

$ grep -E '"(MySQL|NT MD4|Raw SHA-1)"' *.c
MYSQL_fast_fmt_plug.c:#define FORMAT_NAME			"MySQL"
MYSQL_fmt_plug.c:#define FORMAT_NAME "MySQL"
NT_fmt_plug.c:#define FORMAT_NAME			"NT MD4"
nt2_fmt_plug.c:#define FORMAT_NAME			"NT MD4"
opencl_nt_fmt.c:#define FORMAT_NAME			"NT MD4"
rawSHA1_fmt_plug.c:#define FORMAT_NAME			"Raw SHA-1"
rawSHA1_ng_fmt.c:        .format_name        = "Raw SHA-1",

Actually, I liked the idea to identify different format labels that
crack the same hash, together with seeing possible differences in
supported password length (in bytes):
$ ./john --list=format-details |grep -E '\s(MySQL|NT MD4|Raw
SHA-1)$'|cut -f 1,2
mysql-fast	32
mysql	32
nt	27
nt2	27
raw-sha1	55
raw-sha1-ng	15

Too bad that relbench needs distinct names to match benchmarks of
different output files.



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