Java

Export a Public Key as XML

Demonstrates the Chilkat PublicKey.GetXml method, which returns the public key in Chilkat XML format. It takes no arguments; the exact representation (for example an RSAPublicKey element) depends on the key type.

Note: The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: The XML key format comes from the .NET/XML-DSIG world; exporting to it lets you hand a public key to .NET code or a system built around XML signatures. It is the inverse of LoadXml-style loading. Because a public key is not secret, this XML can be shared freely.

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Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.PublicKey;

public class ChilkatExample {

    public static void main(String[] args) {
        // Load a public key to export.  LoadFromFile inspects the content, so it accepts DER, PEM, XML,
        // JWK, and other supported representations.
        PublicKey pubKey = new PublicKey();
        String xml;
        try {
            pubKey.loadFromFile("qa_data/public.pem");

            // Export the public key in Chilkat XML format.  The representation depends on the key type (for
            // example an RSAPublicKey element for RSA).
            xml = pubKey.getXml();
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        System.out.println(xml);
    }
}