VSCode SFTP plugin connecting with private key error:OPENSSL_internal:DECODE_ERROR

When I'm trying to upload file using SFTP extension in Visual Studio Code, following error is shown:

Error while signing data with privateKey: error:06000066:public key routines:OPENSSL_internal:DECODE_ERROR

Full stack trace is

[04-15 09:45:25] [error] Error: [120.55.113.108]: Error while signing data with privateKey: error:06000066:public key routines:OPENSSL_internal:DECODE_ERROR
    at Client. (/home/gbstack/.vscode/extensions/liximomo.sftp-1.12.9/dist/extension.js:70:107548)
    at Client.emit (events.js:327:22)
    at Client.EventEmitter.emit (domain.js:483:12)
    at /home/gbstack/.vscode/extensions/liximomo.sftp-1.12.9/node_modules/ssh2/lib/client.js:578:16
    at SSH2Stream.authPK (/home/gbstack/.vscode/extensions/liximomo.sftp-1.12.9/node_modules/ssh2-streams/lib/ssh.js:1640:3)
    at SSH2Stream.onUSERAUTH_PK_OK (/home/gbstack/.vscode/extensions/liximomo.sftp-1.12.9/node_modules/ssh2/lib/client.js:572:14)
    at Object.onceWrapper (events.js:421:28)
    at SSH2Stream.emit (events.js:315:20)
    at SSH2Stream.EventEmitter.emit (domain.js:483:12)
    at parse_USERAUTH (/home/gbstack/.vscode/extensions/liximomo.sftp-1.12.9/node_modules/ssh2-streams/lib/ssh.js:4171:12)
    at parsePacket (/home/gbstack/.vscode/extensions/liximomo.sftp-1.12.9/node_modules/ssh2-streams/lib/ssh.js:3862:12)
    at SSH2Stream._transform (/home/gbstack/.vscode/extensions/liximomo.sftp-1.12.9/node_modules/ssh2-streams/lib/ssh.js:694:13)
    at SSH2Stream.Transform._read (_stream_transform.js:191:10)
    at SSH2Stream._read (/home/gbstack/.vscode/extensions/liximomo.sftp-1.12.9/node_modules/ssh2-streams/lib/ssh.js:253:15)
    at SSH2Stream.Transform._write (_stream_transform.js:179:12)
    at doWrite (_stream_writable.js:403:12)
    at writeOrBuffer (_stream_writable.js:387:5)
    at SSH2Stream.Writable.write (_stream_writable.js:318:11)
    at Socket.ondata (_stream_readable.js:716:22)
    at Socket.emit (events.js:315:20)
    at Socket.EventEmitter.emit (domain.js:483:12)
    at addChunk (_stream_readable.js:295:12)
    at readableAddChunk (_stream_readable.js:271:9)
    at Socket.Readable.push (_stream_readable.js:212:10)
    at TCP.onStreamRead (internal/stream_base_commons.js:186:23)

The ssh connection is using public key authentication, and my sftp configuration (sftp.json) is like following:

{
    "name": "My Server",
    "host": "test",
    "protocol": "sftp",
    "privateKeyPath": "/home/test/.ssh/id_rsa",
    "port": 22,
    "username": "root",
    "remotePath": "/var/www/html/test/"
}

Solution

To fix this error, we can convert the private key file from OpenSSH private key format to PEM format.

ssh-keygen -p -m PEM -f /home/test/.ssh/id_rsa

Try again it will work now.

The post VSCode SFTP plugin connecting with private key error:OPENSSL_internal:DECODE_ERROR appeared first on Redino blog.