Bug#1103392: incorrect signature when ssh'ing to an AIX server (Big Endian) from X86 (Little endian)

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,