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Issue 1952 – Support rsa-sha2-256 and rsa-sha2-512 SSH public key algorithms

: Core
: Unspecified
: Enhancement
: Medium
: 3
: 5.20
OpenSSH 8.8 disabled ssh-rsa by default. Until WinSCP 5.20 is released, add this to server's sshd_config to re-enable it:
PubkeyAcceptedAlgorithms +ssh-rsa
Emails with Максим Курносенко.
Emails with Tiago Costa.
The problem manifests as "Server refused our key".
WinSCP 5.19.5 will log a reference to this bug, when an OpenSSH 8.8 (or newer) server refuses the key.
Issue 1980 has been marked as a duplicate of this issue.