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.nio.charset.Charset;

import java.security.Signature;
import java.security.interfaces.RSAPrivateKey;

import android.util.Base64;

public class Main {
    static public String getSignature(String s, RSAPrivateKey privKey, String algorithm) {
        try {
            if ("RS256".compareTo(algorithm) == 0)
                algorithm = "SHA256withRSA";
            Signature signature = Signature.getInstance(algorithm, "SC");
            signature.initSign(privKey);
            signature.update(s.getBytes(Charset.forName("UTF-8")));
            byte[] signed = signature.sign();
            return encodeB64(signed);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    static String encodeB64(byte[] bytes) {
        try {
            return Base64.encodeToString(bytes, Base64.URL_SAFE | Base64.NO_PADDING | Base64.NO_WRAP);
        } catch (Exception e) {
        }
        return null;
    }
}