I think that there was a bug in Ignite Realtime Discourse, publication has been removed ^^
Users and devs request informations about SCRAM in more SCRAM-SHA-1, the missing SCRAM-SHA-1-PLUS point from RFC6120 (March 2011) and SCRAM-SHA-256(-PLUS):
- SCRAM-SHA-1-PLUS (RFC5802 + RFC6120)
- SCRAM-SHA-256(-PLUS) (RFC7677 + draft-ietf-mile-xmpp-grid)
Why not SCRAM-SHA-512(-PLUS).
Source:
- Salted Challenge Response Authentication Mechanism (SCRAM): SASL and GSS-API Mechanisms: https://tools.ietf.org/html/rfc5802
- Extensible Messaging and Presence Protocol (XMPP): Core: https://tools.ietf.org/html/rfc6120
- SCRAM-SHA-256 and SCRAM-SHA-256-PLUS: Simple Authentication and Security Layer (SASL) Mechanisms: https://tools.ietf.org/html/rfc7677
- Using XMPP for Security Information Exchange: https://tools.ietf.org/html/draft-ietf-mile-xmpp-grid