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

[Neustradamus]

Dear @bruceg,

For more security, 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

A "big" list has been done in last link of this ticket.

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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

-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
• RFC9266: 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

JMAP:

• RFC8621: The JSON Meta Application Protocol (JMAP) for Mail: https://tools.ietf.org/html/rfc8621

2FA:

• Extensions to Salted Challenge Response (SCRAM) for 2 factor authentication: https://tools.ietf.org/html/draft-melnikov-scram-2fa

IANA:

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

Linked to:

• State of Play scram-sasl/info#1