& It is normal. Crack is incredibly slow (when you consider that for each
& entry in /etc/passwd it is doing 500K encryptions, that's understandable).
In according to you, yes Crack is slow if running over a single host.
are you using ufc-crypt ? if no, get it. README...
UFC-crypt: ultra fast 'crypt' implementation
============================================
Design goals/non goals:
----------------------
- Crypt implementation plugin compatible with crypt(3)/fcrypt.
- High performance when used for password cracking.
- Portable to most 32/64 bit machines.
- Startup time/mixed salt performance not critical.
Features of the implementation:
------------------------------
- On most machines, UFC-crypt runs 30-60 times faster than crypt(3) when
invoked repeated times with the same salt and varying passwords.
- With mostly constant salts, performance is about two to three times
that of the default fcrypt implementation shipped with Alec
Muffets 'Crack' password cracker. For instructions on how to
plug UFC-crypt into 'Crack', see below.
- With alternating salts, performance is only about twice
that of crypt(3).
- Tested on 680x0, 386, SPARC, MIPS, HP-PA, Convex, Cray,
Pyramid and IBM RS/6000 systems as well as with gcc on IBM PS/2(DOS)
and Linux on a 386 PC.
- Requires 165 kb for tables.
- UFC-crypt is known to have compilation problems on some micro computer
C compilers (e.g. Turbo C++) due to its table sizes. Flame the vendors
for placing arbitrary limitations on their products. Use & support the
GNU C compiler, gcc.
...
extract the ufc-crypt library at your Crack home directory
as directory ufc-crypt. Crack will recognize automatically
that you want to use ufc-crypt instead of crypt or fcrypt.
"cd ~Crack/Sources ; make tests" performance results :
crypt fcrypt xform ufc (*crypt per secs)
hp710 56.1 942.3 1070.1 1771.0
hp715/50 50.5 986.6 1073.9 1866.2
hp715/75 79.4 1719.8 1938.8 4385.3
hp712/80 107.7 2496.8 2830.6 6566.7
hp720 50.8 986.5 1080.8 1883.5
hp730 74.5 1487.1 1660.2 3721.8
hp735 99.2 2237.9 2494.7 5517.9
ssIPC 21.6 325.9 375.5 802.7
ssLX 43.4 428.2 475.6 937.0
ss5 80.2 1098.3 1333.4 1673.6
ss10 94.6 1097.5 1064.5 1361.8
ss20 147.8 2039.8 2402.3 3276.0
(values may change in relation to CPU charge)
under Solaris, modify the ~Crack/{Sources,ufc-crypt}/Makefile to
use the BSD compiler (required 4 bzero & gethostname) as :
CC=[ -f /usr/ucb/cc ] && CC=/usr/ucb/cc || CC=cc; $$CC
&&& /\ ufc-crypt /\ &&&&&&&&&&&&&&&&&&&&&&&&&&&&& \/ Crack -network ... \/ &&&
if you are using a wide lan (more than one workstation :-)
it is possible to start Crack in // over N workstations
of N architectures.
to do this, just update ~Crack/Scripts/network.conf
(see comments in it) as :
hp-hostname:hppa:1875:::-n4:HP 9000/715-50 w/ ufc-crypt
sun-hostname:sun4:1945:::-n4:SUN SparcStation 5 w/ ufc-crypt
~Crack/Scripts/RCrack is buggy at :
"HP*UX") # Hewlett Packard boxen
must be :
HP*UX ) # Hewlett Packard boxen
then fireup Crack over the network as :
~Crack/Crack -network your_passwd_file_to_crack
don't miss to update ~Crack/Crack as :
#!/bin/sh
PATH=/bin:/usr/bin:/usr/ccs/bin:/usr/ucb/bin:/usr/local/bin export PATH
# ^^^^ HP compiler
# ^^^^^^^^^^^^ Solaris's make
# ^^^^^^^^^^^^ Solaris BSD compiler
# ^^^^^^^^^^^^^^ if you have
# gzipped ~Crack/Dicts/bigdicts
...
CRACK_HOME=/full_path_of/Crack-4.1
I know that this is unordered, but... is the answer complete enough
to help you ?
have fun & good luck.
--
The above opinions are all my own work, and do not represent those of EDF
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