libntlm ☆

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Description:
Implements Microsoft's NTLM authentication

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Security

Tags: authentication ntlm security library c

Install: brew install libntlm

About:
Libntlm is a C library that implements Microsoft's NTLM (NT LAN Manager) authentication protocol. It provides functions to generate and process NTLM authentication messages, enabling client-server applications to authenticate against Windows systems. Its main value is offering a lightweight, standalone solution for adding NTLM support without requiring the full Samba suite.

Key Features:

C library for NTLM v1 and v2 authentication
Generates and parses NTLM messages
Standalone and lightweight
Supports MD4 and HMAC-MD5 hashing

Use Cases:

Adding NTLM authentication to custom network clients
Integrating with legacy Windows services that require NTLM
Building proxy servers that need to handle NTLM

Alternatives:

Samba libs – Samba provides NTLM support but is a much larger and more complex suite of tools.

Version History

Detected	Version	Rev	Change	Commit
Sep 16, 2025 8:12am		0	VERSION_BUMP	a6ed22e2
Sep 13, 2024 2:53pm		0	VERSION_BUMP	e640e8c5