[Bug 3472] New: Consider discontinuing support for sntrup761x25519-sha512 at openssh.com

[bugzilla-daemon at mindrot.org]

https://bugzilla.mindrot.org/show_bug.cgi?id=3472

            Bug ID: 3472
           Summary: Consider discontinuing support for
                    sntrup761x25519-sha512 at openssh.com
           Product: Portable OpenSSH
           Version: v9.0p1
          Hardware: Other
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P5
         Component: Build system
          Assignee: unassigned-bugs at mindrot.org
          Reporter: ricky.tigg at gmail.com

Hello. Post-quantum cryptographic primitives
sntrup761x25519-sha512 at openssh.com and chacha20-poly1305 at openssh.com
were introduced in OpenSSH respectively in v. 8.5, as default in v.
9.0, and v. 6.5, promoted default cipher in v. 6.9. I mistaken by
conceiving that the project has for policy to solely accept to
integrate algorithm implementations which have been standardised either
by a recognised national or internal standards entity. At this very
time, it seems there is no such standard for NTRU. It's worth noting
that NIST recently decided not to select NTRU for standardisation. It
instead selected CRYSTALS-Kyber in this respect. What could have
happened for it to be integrated in this project, when apparently
nothing intended it for this destiny? Has it ever occurred to any of
you developers that a such integration might be inappropriate? It's
surprising to say the least.

(*)
https://nvlpubs.nist.gov/nistpubs/ir/2022/NIST.IR.8413.pdf#page=47&zoom=100,120,546

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