Key login not working

[Jimmy]

Thanks for making this cool project!

Note, the keypair work , I've tested on other machines.
I downloaded id-rsa and id-rsa.pub from my linux computer, and placed them on the OS9.2 desktop, then provided the .pub file when asked for "public key". I am then asked for the password, there is no password, so I press enter.

ssheven then tells that login failed, the message is:

Connecting endpoint... done.
Beginning SSH session handshake... done. (15 ticks)
Authenticating... failed!
Username/public key combination invalid!

I captured the attached log from SSHD Did I do something wrong?

Best Regards

21:19:24 sshd[1239115]: debug1: Forked child 1239244.
21:19:24 sshd[1239244]: debug1: Set /proc/self/oom_score_adj to 0
21:19:24 sshd[1239244]: debug1: rexec start in 5 out 5 newsock 5 pipe 7 sock 8
21:19:24 sshd[1239244]: debug1: inetd sockets after dupping: 4, 4
21:19:24 sshd[1239244]: Connection from 192.168.40.149 port 49164 on 192.168.40.118 port 22 rdomain ""
21:19:24 sshd[1239244]: debug1: Local version string SSH-2.0-OpenSSH_8.2p1 Ubuntu-4ubuntu0.5
21:19:24 sshd[1239244]: debug1: Remote protocol version 2.0, remote software version libssh2_1.9.0_DEV
21:19:24 sshd[1239244]: debug1: no match: libssh2_1.9.0_DEV
21:19:24 sshd[1239244]: debug1: permanently_set_uid: 122/65534 [preauth]
21:19:24 sshd[1239244]: debug1: list_hostkey_types: rsa-sha2-512,rsa-sha2-256,ssh-rsa,ecdsa-sha2-nistp256,ssh-ed25519 [preauth]
21:19:24 sshd[1239244]: debug1: SSH2_MSG_KEXINIT sent [preauth]
21:19:24 sshd[1239244]: debug1: SSH2_MSG_KEXINIT received [preauth]
21:19:24 sshd[1239244]: debug1: kex: algorithm: ecdh-sha2-nistp256 [preauth]
21:19:24 sshd[1239244]: debug1: kex: host key algorithm: ecdsa-sha2-nistp256 [preauth]
21:19:24 sshd[1239244]: debug1: kex: client->server cipher: aes128-ctr MAC: hmac-sha2-256 compression: none [preauth]
21:19:24 sshd[1239244]: debug1: kex: server->client cipher: aes128-ctr MAC: hmac-sha2-256 compression: none [preauth]
21:19:24 sshd[1239244]: debug1: expecting SSH2_MSG_KEX_ECDH_INIT [preauth]
21:19:24 sshd[1239244]: debug1: rekey out after 4294967296 blocks [preauth]
21:19:24 sshd[1239244]: debug1: SSH2_MSG_NEWKEYS sent [preauth]
21:19:24 sshd[1239244]: debug1: expecting SSH2_MSG_NEWKEYS [preauth]
21:19:24 sshd[1239244]: debug1: SSH2_MSG_NEWKEYS received [preauth]
21:19:24 sshd[1239244]: debug1: rekey in after 4294967296 blocks [preauth]
21:19:24 sshd[1239244]: debug1: KEX done [preauth]
21:19:24 sshd[1239244]: debug1: userauth-request for user dusted service ssh-connection method publickey [preauth]
21:19:24 sshd[1239244]: debug1: attempt 0 failures 0 [preauth]
21:19:24 sshd[1239244]: debug1: PAM: initializing for "dusted"
21:19:24 sshd[1239244]: debug1: PAM: setting PAM_RHOST to "192.168.40.149"
21:19:24 sshd[1239244]: debug1: PAM: setting PAM_TTY to "ssh"
21:19:24 sshd[1239244]: debug1: userauth_pubkey: test pkalg ssh-rsa pkblob RSA SHA256:#REDACTED #REDACTED# #REDACTED# #REDACTED## [preauth]
21:19:24 sshd[1239244]: debug1: temporarily_use_uid: 1000/1000 (e=0/0)
21:19:24 sshd[1239244]: debug1: trying public key file /home/dusted/.ssh/authorized_keys
21:19:24 sshd[1239244]: debug1: fd 5 clearing O_NONBLOCK
21:19:24 sshd[1239244]: debug1: /home/dusted/.ssh/authorized_keys:2: matching key found: RSA SHA256:#REDACTED #REDACTED# #REDACTED# #REDACTED##
21:19:24 sshd[1239244]: debug1: /home/dusted/.ssh/authorized_keys:2: key options: agent-forwarding port-forwarding pty user-rc x11-forwarding
21:19:24 sshd[1239244]: Accepted key RSA SHA256:#REDACTED #REDACTED# #REDACTED# #REDACTED## found at /home/dusted/.ssh/authorized_keys:2
21:19:24 sshd[1239244]: debug1: restore_uid: 0/0
21:19:24 sshd[1239244]: Postponed publickey for dusted from 192.168.40.149 port 49164 ssh2 [preauth]
21:19:24 sshd[1239244]: Connection closed by authenticating user dusted 192.168.40.149 port 49164 [preauth]
21:19:24 sshd[1239244]: debug1: do_cleanup [preauth]
21:19:24 sshd[1239244]: debug1: monitor_read_log: child log fd closed
21:19:24 sshd[1239244]: debug1: do_cleanup
21:19:24 sshd[1239244]: debug1: PAM: cleanup
21:19:24 sshd[1239244]: debug1: Killing privsep child 1239245
21:19:24 sshd[1239244]: debug1: audit_event: unhandled event 12
21:19:24 sshd[1239115]: debug1: main_sigchld_handler: Child exited

[cy384]

thanks for the bug report, I'll take a look. I've only ever tested keys that require a password, so it may be something related to that.

[Miles Raymond]

Maybe I am mistaken, but shouldn't the client be provided the PRIVATE key and the server configured to allow with the PUBLIC key ? I think the client should be asking for the id_rsa and not the id_rsa.pub file. The id_rsa.pub contents should be added to the server's ~/.ssh/authorized_keys file to allow key-based login.