dovecot - Aug 2022 - RFC 9266: Channel Bindings for TLS 1.3 support

Hello all,

I would like to know if it is possible to add RFC 9266: Channel Bindings for TLS
1.3?
- https://datatracker.ietf.org/doc/html/rfc9266

Little details, to know easily:
- tls-unique for TLS =< 1.2
- tls-exporter for TLS = 1.3

It is will be used by SCRAM-SHA-*-PLUS like SCRAM-SHA-1-PLUS/SCRAM-SHA-256-PLUS.
SCRAM-SHA-1 and SCRAM-SHA-256 are already supported.

Thanks in advance.

Regards,

Neustradamus

> On 02/08/2022 23:53 EEST * Neustradamus * <neustradamus at
hotmail.com> wrote:
> 
>  
> Hello all,
> 
> I would like to know if it is possible to add RFC 9266: Channel Bindings
for TLS 1.3?
> - https://datatracker.ietf.org/doc/html/rfc9266
> 
> Little details, to know easily:
> - tls-unique for TLS =< 1.2
> - tls-exporter for TLS = 1.3
> 
> It is will be used by SCRAM-SHA-*-PLUS like
SCRAM-SHA-1-PLUS/SCRAM-SHA-256-PLUS.
> SCRAM-SHA-1 and SCRAM-SHA-256 are already supported.
> 
> Thanks in advance.
> 
> Regards,
> 
> Neustradamus
Not sure how much use the channel binding would be for IMAP. Do you have any
particular use case for this?

Aki