Have a reusable library for client implementations that need to do authentication over SASL, mainly targeted at Jabber/XMPP libraries.
All class carry just state, are thread-agnostic and must also work in asynchronous environments.
Derive from SASL::Preferences and overwrite the methods. Then, create a mechanism instance: # mechanisms => ['DIGEST-MD5', 'PLAIN'] sasl = SASL.new(mechanisms, my_preferences) content_to_send = sasl.start # [...] content_to_send = sasl.challenge(received_content)