SSH Key Fingerprint

Generates a fingerprint for an SSH key.

Download Chilkat Java Library

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {

    CkSshKey key = new CkSshKey();

    boolean success;

    //  Load an SSH key from an encrypted OpenSSH-formatted private key:
    key.put_Password("secret");

    String 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) {
        System.out.println(key.lastErrorText());
        return;
    }

    //  Generate the fingerprint:
    String fingerprint;
    fingerprint = key.genFingerprint();

    System.out.println(fingerprint);

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


  }
}