Java Requires Chilkat v11.0.0+

RSA OAEP Padding

See more RSA Examples

Demonstrates how to use OAEP padding with the RSA encryption algorithm. More information about OAEP Padding. Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
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();

        // RSA public key in XML format:
        String pubKeyXml = "<RSAPublicKey><Modulus>of3im3mRgd2NLXIGoK6uYLg6jj0Ug2b42rnqa5Tbwz2ieFqMJqt+++x2oqLYGurlz49nt+7/785g3XYWqoka4u9c9zul6YubIjnBM72dQy7rEkEfbUxgjcxqXyjZFx+FpaxFUecLu688XEu+9UA42VKiCgcl+E7TrqnfeeYpNXc=</Modulus><Exponent>AQAB</Exponent></RSAPublicKey>";

        PublicKey pubKey = new PublicKey();
        try {
            pubKey.loadFromString(pubKeyXml);

            rsa.usePublicKey(pubKey);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // To use Optimal Asymmetric Encryption Padding (OAEP) padding,
        // simply set the PkcsPadding property to false
        rsa.setPkcsPadding(false);

        // Encrypt a string and return the encrypted data base64-encoded:
        rsa.setEncodingMode("base64");

        String plainText = "RSA Encryption should be easy.";

        boolean usePrivateKey = false;
        String encryptedStr = rsa.encryptStringENC(plainText, usePrivateKey);
        System.out.println(encryptedStr);
    }
}