Java

Load a Private Key from XML Text

Demonstrates the Chilkat PrivateKey.LoadXml method, which loads a private key from XML text. The only argument is the XML string. Supported roots include RSAKeyValue, DSAKeyValue, ECCKeyValue, and Ed25519KeyValue.

Background: XML key representations such as RSAKeyValue come from the .NET/XML-DSIG world, where keys are exchanged as XML elements. This loads that form — the inverse of GetXml — which is handy for interoperating with .NET code or systems built around XML signatures. It is a plaintext format, so protect the XML like any unencrypted key material.

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Java

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[])
  {
    boolean success = false;

    //  Demonstrates the PrivateKey.LoadXml method, which loads a private key from XML text.  The only
    //  argument is the XML string.  Supported roots include RSAKeyValue, DSAKeyValue, ECCKeyValue,
    //  and Ed25519KeyValue.

    CkPrivateKey privKey = new CkPrivateKey();

    //  The XML text of a private key (for example as produced by GetXml).
    String xmlText = "<RSAKeyValue><Modulus>...</Modulus><Exponent>AQAB</Exponent>...</RSAKeyValue>";

    success = privKey.LoadXml(xmlText);
    if (success == false) {
        System.out.println(privKey.lastErrorText());
        return;
        }

    System.out.println("Loaded a " + privKey.keyType() + " private key.");
  }
}