Java Requires Chilkat v11.0.0+

Generate RSA Public/Private Key Pair and Export to PEM

See more RSA Examples

_LANGUAGE_ example code showing how to generate an RSA public/private key pair and export to PEM files. Chilkat2 Java

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

public class ChilkatExample {

    public static void main(String[] args) {
        // This example assumes the Chilkat API to have been previously unlocked.
        // See Global Unlock Sample for sample code.

        Rsa rsa = new Rsa();

        // Generate a 2048-bit key.  Chilkat RSA supports
        // key sizes ranging from 512 bits to 8192 bits.
        PrivateKey privKey = new PrivateKey();
        try {
            rsa.genKey(2048, privKey);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        PublicKey pubKey = new PublicKey();
        privKey.toPublicKey(pubKey);

        // Save the private key in PEM format:
        try {
            privKey.savePemFile("privateKey.pem");

            // Save the public key in PEM format:
            pubKey.savePemFile(false, "publicKey.pem");
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        System.out.println("Success.");
    }
}