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cyrus-sasl

brew install cyrus-sasl v2.1.28_2 BSD-3-Clause-Attribution keg-only

Shared library implementing SASL (Simple Authentication and Security Layer) authentication mechanisms for C/C++ applications.

Why you might care

Cyrus SASL is a foundational authentication library used by mail servers, LDAP clients, and other networked services that need pluggable authentication (Kerberos, PLAIN, DIGEST-MD5, etc.). It's keg-only because macOS provides its own SASL, but Homebrew's version offers newer mechanisms and better integration with OpenSSL 3. Primarily a build dependency for other formulae rather than a direct CLI tool.

Categories

library security authentication

Alternatives

GNU SASL OpenSSL
25.5k
30-day installs · #207
86.8k
90-day · #199
293.1k
365-day · #218

Runtime dependencies

krb5 openssl@3

Links

Keg-only reason

:provided_by_macos

Blurb generated by claude-haiku-4-5 on today.

Raw metadata 
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  "desc": "Simple Authentication and Security Layer",
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  "enrichment_fetched_at": "2026-06-20T23:36:47+00:00",
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  "license": "BSD-3-Clause-Attribution",
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  "why_use_this": "Cyrus SASL is a foundational authentication library used by mail servers, LDAP clients, and other networked services that need pluggable authentication (Kerberos, PLAIN, DIGEST-MD5, etc.). It\u0027s keg-only because macOS provides its own SASL, but Homebrew\u0027s version offers newer mechanisms and better integration with OpenSSL 3. Primarily a build dependency for other formulae rather than a direct CLI tool."
}