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(Java) RSA OAEP Padding

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

Chilkat Java Downloads

Java Libs for Windows, Linux, Alpine Linux,
MAC OS X, Solaris, FreeBSD, OpenBSD,
Raspberry Pi and other single board computers

Java Libs for Android

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[])
  {
    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkRsa rsa = new CkRsa();

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

    boolean success = rsa.ImportPublicKey(publicKey);

    // To use Optimal Asymmetric Encryption Padding (OAEP) padding,
    // simply set the OaepPadding property:
    rsa.put_OaepPadding(true);

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

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

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

 

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