SCRAM-SHA-1(-PLUS) + SCRAM-SHA-256(-PLUS) + SCRAM-SHA-512(-PLUS) + SCRAM-SHA3-512(-PLUS) supports

Dear @foxcpp,

Can you add supports of :
- SCRAM-SHA-1
- SCRAM-SHA-1-PLUS
- SCRAM-SHA-256
- SCRAM-SHA-256-PLUS
- SCRAM-SHA-512
- SCRAM-SHA-512-PLUS
- SCRAM-SHA3-512
- SCRAM-SHA3-512-PLUS

You can add too:
- SCRAM-SHA-224
- SCRAM-SHA-224-PLUS
- SCRAM-SHA-384
- SCRAM-SHA-384-PLUS

"When using the SASL SCRAM mechanism, the SCRAM-SHA-256-PLUS variant SHOULD be preferred over the SCRAM-SHA-256 variant, and SHA-256 variants [RFC7677] SHOULD be preferred over SHA-1 variants [RFC5802]".

- SCRAM-SHA-1(-PLUS):
-- https://tools.ietf.org/html/rfc5802
-- https://tools.ietf.org/html/rfc6120

- SCRAM-SHA-256(-PLUS):
-- https://tools.ietf.org/html/rfc7677 since 2015-11-02
-- https://tools.ietf.org/html/rfc8600 since 2019-06-21: https://mailarchive.ietf.org/arch/msg/ietf-announce/suJMmeMhuAOmGn_PJYgX5Vm8lNA

- SCRAM-SHA-512(-PLUS):
-- https://tools.ietf.org/html/draft-melnikov-scram-sha-512

- SCRAM-SHA3-512(-PLUS):
-- https://tools.ietf.org/html/draft-melnikov-scram-sha3-512

- SCRAM BIS: Salted Challenge Response Authentication Mechanism (SCRAM) SASL and GSS-API Mechanisms:
-- https://tools.ietf.org/html/draft-melnikov-scram-bis

https://xmpp.org/extensions/inbox/hash-recommendations.html

-PLUS variants:
- RFC5056: On the Use of Channel Bindings to Secure Channels: https://tools.ietf.org/html/rfc5056
- RFC5929: Channel Bindings for TLS: https://tools.ietf.org/html/rfc5929
- Channel-Binding Types: https://www.iana.org/assignments/channel-binding-types/channel-binding-types.xhtml
- RFC 9266: Channel Bindings for TLS 1.3: https://tools.ietf.org/html/rfc9266

IMAP:
- RFC9051: Internet Message Access Protocol (IMAP) - Version 4rev2: https://tools.ietf.org/html/rfc9051

LDAP:
- RFC5803: Lightweight Directory Access Protocol (LDAP) Schema for Storing Salted: Challenge Response Authentication Mechanism (SCRAM) Secrets: https://tools.ietf.org/html/rfc5803

HTTP:
- RFC7804: Salted Challenge Response HTTP Authentication Mechanism: https://tools.ietf.org/html/rfc7804

2FA:
- Extensions to Salted Challenge Response (SCRAM) for 2 factor authentication: https://datatracker.ietf.org/doc/html/draft-ietf-kitten-scram-2fa

IANA:
- Simple Authentication and Security Layer (SASL) Mechanisms: https://www.iana.org/assignments/sasl-mechanisms/sasl-mechanisms.xhtml

Linked to:
- https://github.com/scram-xmpp/info/issues/1

Comienza comparando los mecanismos solicitados con las RFC citadas y la IANA SASL registry. Después, localiza los puntos de entrada actuales de la autenticación SCRAM y la cobertura de pruebas del repositorio, y define la finalización como la compatibilidad con los mecanismos solicitados y PLUS channel bindings. El issue no menciona archivos ni pruebas, por lo que el alcance de la implementación requiere aclaración por parte de los maintainers.

Escrito por el modelo de indexación a partir del texto del issue.