The application reports an error in the private key format

[itamcampos]

What Operating System(s) are you seeing this problem on?

Windows

Which Wayland compositor or X11 Window manager(s) are you using?

No response

WezTerm version

20240203-110809-5046fc22

Did you try the latest nightly build to see if the issue is better (or worse!) than your current version?

Yes, and I updated the version box above to show the version of the nightly that I tried

Describe the bug

I'm trying to load a private key and this message returns

Load key "C:\\Users\\MyUser\\.ssh\\id_ed25519": invalid format

My private key Ed25519 is in the correct format::

-----BEGIN OPENSSH PRIVATE KEY-----
[...]
-----END OPENSSH PRIVATE KEY-----

To Reproduce

Inside Wezterm:

 wezterm ssh -vvv -oUser=myuser -oPort=22 -oIdentityFile=C:/Users/MyUser/.ssh/id_ed25519 192.168.58.14

Configuration

no config

Expected Behavior

No response

Logs

No response

Anything else?

SSH command output

OpenSSH_for_Windows_7.7p1, LibreSSL 2.6.5
debug1: Reading configuration data C:\\Users\\MyUser/.ssh/config
debug1: C:\\Users\\MyUser/.ssh/config line 1: Applying options for sarq
debug3: Failed to open file:C:/ProgramData/ssh/ssh_config error:2
debug2: resolve_canonicalize: hostname 192.168.58.14 is address
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to 192.168.58.14 [192.168.58.14] port 22.
debug1: Connection established.
debug1: identity file C:\\Users\\MyUser\\.ssh\\id_ed25519 type 3
debug3: Failed to open file:C:/Users/MyUser/.ssh/id_ed25519-cert error:2
debug3: Failed to open file:C:/Users/MyUser/.ssh/id_ed25519-cert.pub error:2
debug1: key_load_public: No such file or directory
debug1: identity file C:\\Users\\MyUser\\.ssh\\id_ed25519-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_for_Windows_7.7
debug1: Remote protocol version 2.0, remote software version OpenSSH_8.4p1 Debian-5+deb11u3
debug1: match: OpenSSH_8.4p1 Debian-5+deb11u3 pat OpenSSH* compat 0x04000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to 192.168.58.14:22 as 'myuser'
debug3: put_host_port: [192.168.58.14]:22
debug3: hostkeys_foreach: reading file "C:\\Users\\MyUser/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file C:\\Users\\MyUser/.ssh/known_hosts:1
debug3: load_hostkeys: loaded 1 keys from [192.168.58.14]:22
debug3: Failed to open file:C:/Users/MyUser/.ssh/known_hosts2 error:2
debug3: Failed to open file:C:/ProgramData/ssh/ssh_known_hosts error:2
debug3: Failed to open file:C:/ProgramData/ssh/ssh_known_hosts2 error:2
debug3: order_hostkeyalgs: prefer hostkeyalgs: [email protected],[email protected],[email protected],ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521
debug3: send packet: type 20
debug1: SSH2_MSG_KEXINIT sent
debug3: receive packet: type 20
debug1: SSH2_MSG_KEXINIT received
debug2: local client KEXINIT proposal
debug2: KEX algorithms: curve25519-sha256,[email protected],ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1,ext-info-c
debug2: host key algorithms: [email protected],[email protected],[email protected],ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,[email protected],[email protected],ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa
debug2: ciphers ctos: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: ciphers stoc: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: MACs ctos: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none
debug2: compression stoc: none
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug2: peer server KEXINIT proposal
debug2: KEX algorithms: curve25519-sha256,[email protected],ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256,[email protected]
debug2: host key algorithms: rsa-sha2-512,rsa-sha2-256,ssh-rsa,ecdsa-sha2-nistp256,ssh-ed25519
debug2: ciphers ctos: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: ciphers stoc: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: MACs ctos: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,[email protected]
debug2: compression stoc: none,[email protected]
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug1: kex: algorithm: curve25519-sha256
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: [email protected] MAC: <implicit> compression: none
debug1: kex: client->server cipher: [email protected] MAC: <implicit> compression: none
debug3: send packet: type 30
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug3: receive packet: type 31
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:M4YZE3l1L77mTQ6mYBIJH0JU0qxhp3yFMy6OPrB44CY
debug3: put_host_port: [192.168.58.14]:22
debug3: put_host_port: [192.168.58.14]:22
debug3: hostkeys_foreach: reading file "C:\\Users\\MyUser/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file C:\\Users\\MyUser/.ssh/known_hosts:1
debug3: load_hostkeys: loaded 1 keys from [192.168.58.14]:22
debug3: Failed to open file:C:/Users/MyUser/.ssh/known_hosts2 error:2
debug3: Failed to open file:C:/ProgramData/ssh/ssh_known_hosts error:2
debug3: Failed to open file:C:/ProgramData/ssh/ssh_known_hosts2 error:2
debug3: hostkeys_foreach: reading file "C:\\Users\\MyUser/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file C:\\Users\\MyUser/.ssh/known_hosts:1
debug3: load_hostkeys: loaded 1 keys from [192.168.58.14]:22
debug3: Failed to open file:C:/Users/MyUser/.ssh/known_hosts2 error:2
debug3: Failed to open file:C:/ProgramData/ssh/ssh_known_hosts error:2
debug3: Failed to open file:C:/ProgramData/ssh/ssh_known_hosts2 error:2
debug1: Host '[192.168.58.14]:22' is known and matches the ECDSA host key.
debug1: Found key in C:\\Users\\MyUser/.ssh/known_hosts:1
debug3: send packet: type 21
debug2: set_newkeys: mode 1
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug3: receive packet: type 21
debug1: SSH2_MSG_NEWKEYS received
debug2: set_newkeys: mode 0
debug1: rekey after 134217728 blocks
debug3: unable to connect to pipe \\\\.\\pipe\\openssh-ssh-agent, error: 2
debug1: pubkey_prepare: ssh_get_authentication_socket: No such file or directory
debug2: key: C:\\Users\\MyUser\\.ssh\\id_ed25519 (00000253AD69B370), explicit
debug3: send packet: type 5
debug3: receive packet: type 7
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<ssh-ed25519,[email protected],ssh-rsa,rsa-sha2-256,rsa-sha2-512,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,[email protected],[email protected]>
debug3: receive packet: type 6
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug3: send packet: type 50
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey
debug3: start over, passed a different list publickey
debug3: preferred publickey,keyboard-interactive,password
debug3: authmethod_lookup publickey
debug3: remaining preferred: keyboard-interactive,password
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Offering public key: ED25519 SHA256:ga9dqIUABQ4juPwl/çfsQk7040AHp5BWwqlCprGLnJfWQ C:\\Users\\MyUser\\.ssh\\id_ed25519
debug3: send_pubkey_test
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 60
debug1: Server accepts key: pkalg ssh-ed25519 blen 51
debug2: input_userauth_pk_ok: fp SHA256:ga9dqIUABQ4juPwl/çfsQk7040AHp5BWwqlCprGLnJfWQ
debug3: sign_and_send_pubkey: ED25519 SHA256:ga9dqIUABQ4juPwl/çfsQk7040AHp5BWwqlCprGLnJfWQ
Load key "C:\\Users\\MyUser\\.ssh\\id_ed25519": invalid format
debug2: we did not send a packet, disable method
debug1: No more authentication methods to try.
[email protected]: Permission denied (publickey).

[wez]

I wonder if this is a build issue with libssh on windows, with the consequence that it doesn't quite understand how to load that key?

[wez]

Oh, one thing to check, is whether your key file is using unix or windows line endings to see if that might be a factor. It shouldn't but I've learned that weird things can happen on windows.

[itamcampos]

Problem solved.

I was trying to use Ed25519 keys. I switched to RSA and it worked.

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