https://bugzilla.mindrot.org/show_bug.cgi?id=2568
Bug ID: 2568
Summary: ssh fails to authenticate using RSA keys when agent
does not support sha256/512 signatures
Product: Portable OpenSSH
Version: -current
Hardware: Other
URL: https://github.com/connectbot/connectbot/issues/397
OS: Linux
Status: NEW
Severity: normal
Priority: P5
Component: ssh
Assignee: [email protected]
Reporter: [email protected]
When attempting a ssh connection using a recent client and recent
server but old or non-openssh agent, the ssh client will request
rsa-sha2-256/512 signatures from the agent unconditionally (since there
is no way for an agent to explicitly signal support for them). The
agent signature request and authentication attempt will therefore fail.
Maybe we should fall back to attempting the classic ssh-rsa style
signature for now?
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