gsasl ☆

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Description:
SASL library command-line interface

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Security

Tags: authentication sasl security networking library

Install: brew install gsasl

About:
Gsasl is a command-line utility and library that provides a complete implementation of the Simple Authentication and Security Layer (SASL) framework. It enables users to authenticate against various network services and supports multiple mechanisms like Kerberos, CRAM-MD5, and PLAIN. Its main value is providing a standardized, scriptable interface for adding authentication to custom or legacy network applications.

Key Features:

Supports multiple SASL mechanisms (GSSAPI/Kerberos, CRAM-MD5, DIGEST-MD5, PLAIN, ANONYMOUS, etc.)
Works as both a library for developers and a command-line tool for users
Enables authentication for custom network protocols
Lightweight and easy to integrate into existing scripts

Use Cases:

Authenticating to legacy or custom network daemons that lack modern security
Testing SASL configurations on mail servers (SMTP, IMAP)
Implementing client-side authentication in shell scripts

Alternatives:

cyrus-sasl – Cyrus SASL is a more complex, system-level library often used by servers; Gsasl is simpler and focused on client-side usage.

Version History

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