(Node.js) SSH Key Fingerprint

Generates a fingerprint for an SSH key.

Install Chilkat for Node.js and Electron using npm at Chilkat npm packages for Node.js Chilkat npm packages for Electron on Windows, Linux, MacOS

var os = require('os');
if (os.platform() == 'win32') {  
  var chilkat = require('@chilkat/ck-node23-win64'); 
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node23-linux-arm');
    } else if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node23-linux-arm64');
    } else {
        var chilkat = require('@chilkat/ck-node23-linux-x64');
    }
} else if (os.platform() == 'darwin') {
  var chilkat = require('@chilkat/ck-node23-mac-universal');
}

function chilkatExample() {

    var key = new chilkat.SshKey();

    var success;

    // Load an SSH key from an encrypted OpenSSH-formatted private key:
    key.Password = "secret";

    var keyStr;
    // First load the PEM into a string:
    keyStr = key.LoadText("privkey_openssh_encrypted.pem");

    // Import into the SSH key object:
    success = key.FromOpenSshPrivateKey(keyStr);
    if (success !== true) {
        console.log(key.LastErrorText);
        return;
    }

    // Generate the fingerprint:
    var fingerprint;
    fingerprint = key.GenFingerprint();

    console.log(fingerprint);

    // A sample fingerpring looks like this:
    // ssh-dss 2048 d0:5f:f7:d6:49:60:7b:50:19:f4:41:59:d4:1f:61:7

}

chilkatExample();