README.md

generate NT Hash

script to generate the NT hash for a password string (for NTLMv2 auth, etc). OpenSSL config was tested on Fedora 42.

Usage

$ nthash --help
Generate NT Hash from password string.

Usage: nthash '<password>'

To use the generated hash in Go as []byte:
hashBytes, _ := hex.DecodeString("<hash>")

Example

$ nthash Password123
58A478135A93AC3BF058A5EA0E8FDB71

nthash

#!/bin/bash

dp0="$(cd "$(dirname "$(readlink -f "$0")")" && pwd)"
OPENSSL_CONF="$dp0/nthash_openssl.cnf" python $dp0/nthash.py $1

nthash.py

#!/usr/bin/python

import sys
import hashlib

usage = f"""
Generate NT Hash from password string.

Usage: nthash '<password>'

To use the generated hash in Go as []byte:
hashBytes, _ := hex.DecodeString("<hash>")
"""


if len(sys.argv) < 2 or not sys.argv[1] or sys.argv[1].strip() == "" or sys.argv[1].strip() == "--help" or sys.argv[1].strip() == "-h":
    print(usage)
    sys.exit(1)

passwd = sys.argv[1].strip()

print(hashlib.new('md4', passwd.encode('utf-16le')).hexdigest().upper())

nthash_openssl.cnf

openssl_conf = openssl_init

[openssl_init]
providers = provider_sect

[provider_sect]
default = default_sect
legacy = legacy_sect

[default_sect]
activate = 1

[legacy_sect]
activate = 1