get RSA Decrypt Cipher - Java Security

Java examples for Security:RSA

  1. HOME
  2. Java
  3. Security
  4. RSA

Description

get RSA Decrypt Cipher

Demo Code

/*//from w  w w  . j  ava  2  s  . c  o m
 * Copyright (C) 2016  Matteo Morena
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
//package com.java2s;
import java.security.GeneralSecurityException;
import java.security.InvalidKeyException;

import java.security.PrivateKey;

import javax.crypto.Cipher;

public class Main {
    public static Cipher getDecryptCipher(PrivateKey key)
            throws InvalidKeyException {
        try {
            Cipher cipher;
            cipher = Cipher.getInstance("RSA");
            cipher.init(Cipher.DECRYPT_MODE, key);
            return cipher;
        } catch (GeneralSecurityException e) { // NoSuchAlgorithmException and NoSuchPaddingException
            // Can't happen
        }
        return null;
    }
}

Related Tutorials