Ok, will try the upstream version.
Last working version was 1:9.9p2-1 (1:9.9p2-2 might have worked, not sure) Thanks. On Thu, 2025-04-17 at 22:29 +0100, Colin Watson wrote: > On Thu, Apr 17, 2025 at 02:43:51PM +1200, Jean-Francois Pirus wrote: > > If I delete the key from the known_hosts I get the additional line > > just > > before the incorrect signature: > > debug2: ssh_ed25519_verify: crypto_sign_ed25519_open failed: -1 > > Can you reproduce this using a clean build from unmodified upstream > sources? If so, it would be best to report this directly upstream; I > haven't had access to an AIX machine for literally decades now, but > I'm > pretty sure there are still OpenSSH upstream developers who do. > > Can you also describe whether this is a regression from a previous > release? If so, what was the last version that worked? > > Thanks,