Andre Schlegel-Tylla created KARAF-7753:
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Summary: Key authentication doesn't work with ecdsa keys
Key: KARAF-7753
URL: https://issues.apache.org/jira/browse/KARAF-7753
Project: Karaf
Issue Type: Bug
Components: karaf
Affects Versions: 4.4.4
Reporter: Andre Schlegel-Tylla
Key based authentication isn't working anymore. With Karaf 4.4.3 we had no
problems.
To reproduce follow the manual
[https://karaf.apache.org/manual/latest/#_managing_authentication_by_key] but
replace "rsa" with "ecdsa" for the key creation:
{code:java}
ssh-keygen -t ecdsa -f karaf.id_rsa{code}
sshd Log Karaf 4.4.4
{code:java}
2023-09-20T08:47:30,532 | DEBUG |
sshd-SshServer[39ab90a6](port=8101)-nio2-thread-2 | UserAuthPublicKey
| 165 - org.apache.sshd.osgi - 2.10.0 |
doAuth(karaf2@ServerSessionImpl[null@/[0:0:0:0:0:0:0:1]:53738]) verify key
type=ecdsa-sha2-nistp256,
factories=ssh-rsa,rsa-sha2-256,rsa-sha2-512,[email protected],ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,
fingerprint=SHA256:ytAdBMtQ99Rk0YRk+nIERN+jg0tejbymaKnM5rvlfAQ
2023-09-20T08:47:30,532 | DEBUG |
sshd-SshServer[39ab90a6](port=8101)-nio2-thread-2 | UserAuthPublicKey
| 165 - org.apache.sshd.osgi - 2.10.0 |
doAuth(karaf2@ServerSessionImpl[null@/[0:0:0:0:0:0:0:1]:53738]) key
type=ecdsa-sha2-nistp256,
fingerprint=SHA256:ytAdBMtQ99Rk0YRk+nIERN+jg0tejbymaKnM5rvlfAQ - authentication
result: false {code}
Same part of the log with Karaf 4.4.3
{code:java}
2023-09-20T09:04:26,979 | DEBUG |
sshd-SshServer[64c0cbfc](port=8101)-nio2-thread-2 | UserAuthPublicKey
| 174 - org.apache.sshd.osgi - 2.9.2 |
doAuth(karaf2@ServerSessionImpl[null@/[0:0:0:0:0:0:0:1]:55857]) verify key
type=ecdsa-sha2-nistp256,
factories=ssh-rsa,rsa-sha2-256,rsa-sha2-512,[email protected],ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,
fingerprint=SHA256:ytAdBMtQ99Rk0YRk+nIERN+jg0tejbymaKnM5rvlfAQ2023-09-20T09:04:26,979
| DEBUG | sshd-SshServer[64c0cbfc](port=8101)-nio2-thread-2 |
UserAuthPublicKey | 174 - org.apache.sshd.osgi - 2.9.2 |
doAuth(karaf2@ServerSessionImpl[null@/[0:0:0:0:0:0:0:1]:55857]) key
type=ecdsa-sha2-nistp256,
fingerprint=SHA256:ytAdBMtQ99Rk0YRk+nIERN+jg0tejbymaKnM5rvlfAQ - authentication
result: true {code}
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