Java Requires Chilkat v11.0.0+

RSASSA-PSS Algorithm with SHA256 Hashing

See more RSA Examples

RSA encrypt a SHA256 hash with OAEP padding. Chilkat2 Java

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

public class ChilkatExample {

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

        PrivateKey privkey = new PrivateKey();

        // Load the private key object from a PEM file.
        // (To load from a PEM string, call LoadPem instead.)
        try {
            privkey.loadPemFile("somePath/myPrivateKey.pem");
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        Rsa rsa = new Rsa();
        // Use RSA-PSS by setting PkcsPadding = false
        rsa.setPkcsPadding(false);
        // Use SHA256
        rsa.setOaepHash("SHA-256");

        rsa.usePrivateKey(privkey);

        // Generate a base64 signature.
        rsa.setEncodingMode("base64");

        String sigStr;
        try {
            sigStr = rsa.signStringENC("String to be signed", "SHA-256");
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        System.out.println("Signature: " + sigStr);
    }
}