Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * 
 * Copyright (C) 2015 Orange Labs
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *    http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 */

import java.security.Key;
import java.security.KeyFactory;

import java.security.spec.EncodedKeySpec;
import java.security.spec.PKCS8EncodedKeySpec;

import android.util.Base64;

public class Main {
    static Key base64ToRsaPrivateKey(String b64) {
        if (b64 != null) {
            try {
                byte[] keyBytes = decodeB64(b64);
                if (keyBytes != null) {
                    KeyFactory keyFactory = KeyFactory.getInstance("RSA");
                    EncodedKeySpec privateKeySpec = new PKCS8EncodedKeySpec(keyBytes);
                    return keyFactory.generatePrivate(privateKeySpec);
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        return null;
    }

    static byte[] decodeB64(String s64) {
        return Base64.decode(s64, Base64.URL_SAFE);
    }
}