Separator unmatched for hmac sha512

Separator unmatched for hmac sha512 - Printable Version

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Separator unmatched for hmac sha512 - fishoil - 12-10-2021

Consider the following

python script:

Code:
#!/usr/bin/env python

import hashlib

import hmac

def to_hash(raw):

    return hmac.new(raw.encode("utf-8"),

                    digestmod=hashlib.sha512).digest().hex()

if __name__ == "__main__":

    raw_pass = "123456"

    h = to_hash(raw_pass)

    with open("hlist", "w") as lf:

        lf.write(h)

output file:

Code:
$ cat hlist

d3f2f066f0da13b4cd51085457a9c50f4dfc3ddc2b790133d49f6a11bd048ab7bf4292abaae52d5c2841f7eda24f51bce0858ef75dd0ee02283c73783d63c6a4%

password list file:

Code:
$ cat pass_list

qwerty

123456

zxcvbn

command:

Code:
$ hashcat -m 1750 -a 0 hlist pass_list

output

Code:
hashcat (v6.2.5) 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

* Device #2: 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

CUDA API (CUDA 11.5)

====================

* Device #1: NVIDIA GeForce RTX 2060, 5559/5933 MB, 30MCU

OpenCL API (OpenCL 3.0 CUDA 11.5.100) - Platform #1 [NVIDIA Corporation]

========================================================================

* Device #2: NVIDIA GeForce RTX 2060, skipped

Minimum password length supported by kernel: 0

Maximum password length supported by kernel: 256

Hashfile 'hlist' on line 1 (d3f2f0...e0858ef75dd0ee02283c73783d63c6a4): Separator unmatched

No hashes loaded.

Started: Fri Dec 10 17:15:01 2021

Stopped: Fri Dec 10 17:15:01 2021

without -m option:

Code:
$ hashcat -a 0 hlist pass_list

output is:

Code:
The following 7 hash-modes match the structure of your input hash:

      # | Name                                                | Category

  ======+=====================================================+============================

==========

  1700 | SHA2-512                                            | Raw Hash

  17600 | SHA3-512                                            | Raw Hash

  11800 | GOST R 34.11-2012 (Streebog) 512-bit, big-endian    | Raw Hash

  18000 | Keccak-512                                          | Raw Hash

  6100 | Whirlpool                                          | Raw Hash

  1770 | sha512(utf16le($pass))                              | Raw Hash

  21000 | BitShares v0.x - sha512(sha512_bin(pass))          | Cryptocurrency Wallet

I tried them all, they don't return errors, but simply fail to find password
example:

Code:
$ hashcat -m 1700 -a 0 hlist pass_list

output:

Code:
Session..........: hashcat

Status...........: Exhausted

Hash.Mode........: 1700 (SHA2-512)

Hash.Target......: d3f2f066f0da13b4cd51085457a9c50f4dfc3ddc2b790133d49...63c6a4

Time.Started.....: Fri Dec 10 17:20:04 2021 (0 secs)

Time.Estimated...: Fri Dec 10 17:20:04 2021 (0 secs)

Kernel.Feature...: Pure Kernel

Guess.Base.......: File (pass_list)

Guess.Queue......: 1/1 (100.00%)

Speed.#1.........:    16228 H/s (0.02ms) @ Accel:1024 Loops:1 Thr:64 Vec:1

Recovered........: 0/1 (0.00%) Digests

Progress.........: 3/3 (100.00%)

Rejected.........: 0/3 (0.00%)

Restore.Point....: 3/3 (100.00%)

Restore.Sub.#1...: Salt:0 Amplifier:0-1 Iteration:0-1

Candidate.Engine.: Device Generator

Candidates.#1....: qwerty -> zxcvbn

Hardware.Mon.#1..: Temp: 50c Fan:  0% Util:  8% Core:1365MHz Mem:6801MHz Bus:16

please help: I am out of touch? Or it's the hashcat who is wrong?

RE: Separator unmatched for hmac sha512 - RocketTwice - 12-10-2021

Found online tool which generate hash from pass and salt, and its a PBKDF2. I cannot understand why hashcat module cannot bruteforce hash if hashtype is proper one.

https://neurotechnics.com/tools/pbkdf2-test

iterations 1000
key 32
salt and plaintext passw from my first post generate same hash as i have.

RE: Separator unmatched for hmac sha512 - penguinkeeper - 12-11-2021

Hashcat only supports keyed hmac, in this case, you didn't provide your Python code a key, so it has no key. For your hash, run -m 1750 and append a colon to the end and it'll crack it. Example command:

Code:
hashcat -m 1750 -a 3 "d3f2f066f0da13b4cd51085457a9c50f4dfc3ddc2b790133d49f6a11bd048ab7bf4292abaae52d5c2841f7eda24f51bce0858ef75dd0ee02283c73783d63c6a4:" 123456 --potfile-disable

RE: Separator unmatched for hmac sha512 - fishoil - 12-11-2021

(12-11-2021, 04:14 AM)penguinkeeper Wrote: Hashcat only supports keyed hmac, in this case, you didn't provide your Python code a key, so it has no key. For your hash, run -m 1750 and append a colon to the end and it'll crack it. Example command:

Code:
hashcat -m 1750 -a 3 "d3f2f066f0da13b4cd51085457a9c50f4dfc3ddc2b790133d49f6a11bd048ab7bf4292abaae52d5c2841f7eda24f51bce0858ef75dd0ee02283c73783d63c6a4:" 123456 --potfile-disable

Thank you penguinkeeper, very cool