public static String encryptMessagePublicKey(final String plainMessage, final String hexPublicKey)
throws IllegalArgumentException {
checkStringArgument(plainMessage);
checkStringArgument(hexPublicKey);
AsymmetricCipher cipher = new AsymmetricCipher();
AsymmetricPublicKey publicKey = new AsymmetricPublicKey(hexPublicKey);
return cipher.encryptWithPublicKey(plainMessage, publicKey);
}
public static String decryptMessagePrivateKey(
final String encryptedMessage, final String hexPrivateKey) throws IllegalArgumentException {
checkStringArgument(encryptedMessage);
checkStringArgument(hexPrivateKey);
AsymmetricCipher cipher = new AsymmetricCipher();
AsymmetricPrivateKey privateKey = new AsymmetricPrivateKey(new BigInteger(hexPrivateKey, 16));
try {
return cipher.decryptWithPrivateKey(encryptedMessage, privateKey);
} catch (Exception ex) {
System.out.println("ex = " + ex);
throw new IllegalArgumentException(ex.getMessage());
}
}
