get RSA Encrypt Cipher - Java Security

Java examples for Security:RSA

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Description

get RSA Encrypt Cipher

Demo Code

/*//  w  w  w  . j  a  v  a  2s .co  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.PublicKey;

import javax.crypto.Cipher;

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

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