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+--- Thread: hashcat 5.0.0 with Token length exception with sha1 (/thread-7964.html)
hashcat 5.0.0 with Token length exception with sha1 - pmatos - 11-19-2018
Hello
I was attempting (first time with hashcat) this:
Code:
$ echo "foo:$(echo bar | sha1sum | cut -d ' ' -f 1)" > test.txt
$ hashcat -m 100 -a 0 test.txt
hashcat (v5.0.0) starting...
* Device #1: WARNING! Kernel exec timeout is not disabled.
This may cause "CL_OUT_OF_RESOURCES" or related errors.
To disable the timeout, see: https://hashcat.net/q/timeoutpatch
OpenCL Platform #1: NVIDIA Corporation
======================================
* Device #1: GeForce GTX 950, 492/1968 MB allocatable, 6MCU
Hashfile 'test.txt' on line 1 (foo:e2...ffccdf271b7fbaf34ed72d089537b42f): Token length exception
No hashes loaded.
Started: Mon Nov 19 14:14:05 2018
Stopped: Mon Nov 19 14:14:05 2018No idea why my hash wouldn't be a valid hash. Looks valid:
Code:
$ cat test.txt
foo:e242ed3bffccdf271b7fbaf34ed72d089537b42fWhat's hashcat really complaining about here?
RE: hashcat 5.0.0 with Token length exception with sha1 - DanielG - 11-19-2018
You are not using --username which tells hashcat to ignore the "foo:" part. Hashcat expects a list with just the hashes, no extra data before that. See https://hashcat.net/wiki/doku.php?id=example_hashes where you can see mode 100 only expects "b89eaac7e61417341b710b727768294d0e6a277b" and not "foo: b89eaac7e61417341b710b727768294d0e6a277b".
--edit: Also you are doing "echo bar | sha1sum" which will make a sha1sum of 'bar+newline' because echo automatically appends a newline. If you just want the sha1sum of 'bar' use "echo -n bar" to omit the newline.
RE: hashcat 5.0.0 with Token length exception with sha1 - royce - 11-19-2018
By default, hashcat expects bare hashes (without username). To ignore username, use --username.
With -a 0, you also need to supply a wordlist. If you want to try the default mask attack set instead, use -a 3.
RE: hashcat 5.0.0 with Token length exception with sha1 - undeath - 11-19-2018
also note that you probably intended to run
Code:
echo "foo:$(echo -n bar | sha1sum | cut -d ' ' -f 1)"