DES ECB 模式 JAVA PHP C# 實現加密解密兼容

時間 2019-11-07

標籤 des ecb 模式 java php c# 實現加密解密兼容欄目 Java 简体版

原文原文鏈接

版本一：

JAVA：php

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;

import javax.crypto.*;
import javax.crypto.spec.DESKeySpec;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.security.spec.InvalidKeySpecException;

/**
 * 該加密工具兼容PHP
 */
public class DesEcbCompatiblePhpUtil {

    private static final Logger LOGGER = LoggerFactory.getLogger(DesEcbCompatiblePhpUtil.class);

    /**
     * 密鑰算法
     */
    private static final String ALGORITHM = "DES";
    /**
     * 加解密算法/工做模式/填充方式
     */
    private static final String ALGORITHM_STR = "DES/ECB/NoPadding";

    private static final String CHARSET = "UTF-8";

    /**
     * 填充內容
     */
    private static final String PAD_STR = "\0";

    public static void main(String[] args) throws Exception {
        String clearText = "123";

        String key = "123";
        System.out.println("明文：" + clearText + "\n密鑰：" + key);
        String encryptText = encrypt(clearText, key);
        System.out.println("加密後：" + encryptText);
        String decryptText = decrypt(encryptText, key);
        System.out.println("解密後："+decryptText);

        System.out.println(decryptText.trim().equals("123456"));
    }

    public static String encrypt(String souce, String key) {
        try {
            return encryptByDes(pkcs5Pad(souce), pkcs5Pad(key));
        } catch (Exception e) {
            LOGGER.error("加密數據: {}異常,緣由：{},{}", souce, e.getMessage(), e);
        }

        return "";
    }

    public static String decrypt(final String souce, final String key) {
        try {
            return decryptByDes(souce, pkcs5Pad(key)).trim();
        } catch (Exception e) {
            LOGGER.error("解密數據: {}異常,緣由：{},{}", souce, e.getMessage(), e);
        }

        return "";
    }

    private static String encryptByDes(final String souce, final String key) throws InvalidKeyException,
            NoSuchAlgorithmException, InvalidKeySpecException, NoSuchPaddingException,
            IllegalBlockSizeException, BadPaddingException, UnsupportedEncodingException {
        // DES算法要求有一個可信任的隨機數源
        SecureRandom sr = new SecureRandom();
        // 從原始密匙數據建立DESKeySpec對象
        DESKeySpec dks = new DESKeySpec(key.getBytes(CHARSET));
        // 建立一個密匙工廠，而後用它把DESKeySpec轉換成 一個SecretKey對象
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(ALGORITHM);
        SecretKey key1 = keyFactory.generateSecret(dks);
        // Cipher對象實際完成加密操做
        Cipher cipher = Cipher.getInstance(ALGORITHM_STR);
        // 用密匙初始化Cipher對象
        cipher.init(Cipher.ENCRYPT_MODE, key1, sr);
        // 如今，獲取數據並加密
        byte encryptedData[] = cipher.doFinal(souce.getBytes(CHARSET));
        // 經過BASE64位編碼成字符創形式
        String base64Str = new BASE64Encoder().encode(encryptedData);

        return base64Str;
    }

    private static String decryptByDes(final String souce, final String key) throws InvalidKeyException,
            NoSuchAlgorithmException, InvalidKeySpecException, NoSuchPaddingException, IOException,
            IllegalBlockSizeException, BadPaddingException {
        // DES算法要求有一個可信任的隨機數源
        SecureRandom sr = new SecureRandom();
        // 從原始密匙數據建立DESKeySpec對象
        DESKeySpec dks = new DESKeySpec(key.getBytes(CHARSET));
        // 建立一個密匙工廠，而後用它把DESKeySpec轉換成 一個SecretKey對象
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(ALGORITHM);
        SecretKey key1 = keyFactory.generateSecret(dks);
        // Cipher對象實際完成加密操做
        Cipher cipher = Cipher.getInstance(ALGORITHM_STR);
        // 用密匙初始化Cipher對象
        cipher.init(Cipher.DECRYPT_MODE, key1, sr);
        // 將加密報文用BASE64算法轉化爲字節數組
        byte[] encryptedData = new BASE64Decoder().decodeBuffer(souce);
        // 用DES算法解密報文
        byte decryptedData[] = cipher.doFinal(encryptedData);
        return new String(decryptedData, CHARSET);
    }

    private static String pkcs5Pad(final String souce) {
        //密文和密鑰的長度必須是8的倍數
        if (0 == souce.length() % 8) {
            return souce;
        }

        StringBuffer tmp = new StringBuffer(souce);

        while (0 != tmp.length() % 8) {
            tmp.append(PAD_STR);
        }
        return tmp.toString();
    }
}

PHP:java

class DesUtil{
    
    public function ecbEncrypt($key = "", $encrypt) {
        $iv = mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_DES, MCRYPT_MODE_ECB), MCRYPT_RAND);
        $decrypted = mcrypt_encrypt(MCRYPT_DES, $key, $encrypt, MCRYPT_MODE_ECB, $iv);
        $encode = base64_encode($decrypted);
        return $encode;
    }

    public function ecbDecrypt($key = "", $decrypt) {
        $decoded = base64_decode($decrypt);
        $iv = mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_DES, MCRYPT_MODE_ECB), MCRYPT_RAND);
        $decrypted = mcrypt_decrypt(MCRYPT_DES, $key, $decoded, MCRYPT_MODE_ECB, $iv);
        return self::trimEnd($decrypted);
    }

    /*
     * 去掉填充的字符
     */

    private function trimEnd($text) {
        $len = strlen($text);
        $c = $text[$len - 1];

        if (ord($c) == 0) {
            return rtrim($text, $c);
        }

        if (ord($c) < $len) {
            for ($i = $len - ord($c); $i < $len; $i++) {
                if ($text[$i] != $c) {
                    return $text;
                }
            }
            return substr($text, 0, $len - ord($c));
        }
        return $text;
    }
}

版本二：

JAVA:算法

import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.security.spec.InvalidKeySpecException;

import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.SecretKey;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.DESKeySpec;

import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;


public class SecretUtilTools {
    
    public static String encryptForDES(String souce, String key) throws InvalidKeyException,
            NoSuchAlgorithmException, InvalidKeySpecException, NoSuchPaddingException,
            IllegalBlockSizeException, BadPaddingException, UnsupportedEncodingException {
        // DES算法要求有一個可信任的隨機數源
        SecureRandom sr = new SecureRandom();
        // 從原始密匙數據建立DESKeySpec對象
        DESKeySpec dks = new DESKeySpec(key.getBytes("UTF-8"));
        // 建立一個密匙工廠，而後用它把DESKeySpec轉換成 一個SecretKey對象
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
        SecretKey key1 = keyFactory.generateSecret(dks);
        // Cipher對象實際完成加密操做
        Cipher cipher = Cipher.getInstance("DES");
        // 用密匙初始化Cipher對象
        cipher.init(Cipher.ENCRYPT_MODE, key1, sr);
        // 如今，獲取數據並加密
        byte encryptedData[] = cipher.doFinal(souce.getBytes("UTF-8"));
        // 經過BASE64位編碼成字符創形式
        String base64Str = new BASE64Encoder().encode(encryptedData);

        return base64Str;
    }

    
    public static String decryptForDES(String souce, String key) throws InvalidKeyException,
            NoSuchAlgorithmException, InvalidKeySpecException, NoSuchPaddingException, IOException,
            IllegalBlockSizeException, BadPaddingException {
        // DES算法要求有一個可信任的隨機數源
        SecureRandom sr = new SecureRandom();
        // 從原始密匙數據建立DESKeySpec對象
        DESKeySpec dks = new DESKeySpec(key.getBytes());
        // 建立一個密匙工廠，而後用它把DESKeySpec轉換成 一個SecretKey對象
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
        SecretKey key1 = keyFactory.generateSecret(dks);
        // Cipher對象實際完成加密操做
        Cipher cipher = Cipher.getInstance("DES");
        // 用密匙初始化Cipher對象
        cipher.init(Cipher.DECRYPT_MODE, key1, sr);
        // 將加密報文用BASE64算法轉化爲字節數組
        byte[] encryptedData = new BASE64Decoder().decodeBuffer(souce);
        // 用DES算法解密報文
        byte decryptedData[] = cipher.doFinal(encryptedData);
        return new String(decryptedData,"UTF-8");
    }

}

PHP:數組

<?php  
class SecretUtilTools  
{     
    //加密算法       
    function encryptForDES($input,$key)   
    {         
       $size = mcrypt_get_block_size('des','ecb');  
       $input = $this->pkcs5_pad($input, $size);  
       $td = mcrypt_module_open('des', '', 'ecb', '');  
       $iv = @mcrypt_create_iv (mcrypt_enc_get_iv_size($td), MCRYPT_RAND);  
       @mcrypt_generic_init($td, $key, $iv);  
       $data = mcrypt_generic($td, $input);  
       mcrypt_generic_deinit($td);  
       mcrypt_module_close($td);  
       $data = base64_encode($data);  
       return $data;  
    }   
    //解密算法      
    function decryptForDES($encrypted,$key)  
    {         
       $encrypted = base64_decode($encrypted);  
       $td = mcrypt_module_open('des','','ecb','');   
       //使用MCRYPT_DES算法,cbc模式  
       $iv = @mcrypt_create_iv(mcrypt_enc_get_iv_size($td), MCRYPT_RAND);  
       $ks = mcrypt_enc_get_key_size($td);  
       @mcrypt_generic_init($td, $key, $iv);  
       //初始處理                 
       $decrypted = mdecrypt_generic($td, $encrypted);  
       //解密  
       mcrypt_generic_deinit($td);  
       //結束               
       mcrypt_module_close($td);  
       $y=$this->pkcs5_unpad($decrypted);  
       return $y;     
    }
             
    function pkcs5_pad ($text, $blocksize)   
    {         
       $pad = $blocksize - (strlen($text) % $blocksize);  
       return $text . str_repeat(chr($pad), $pad);  
    } 
        
    function pkcs5_unpad($text)   
    {         
       $pad = ord($text{strlen($text)-1});  
       if ($pad > strlen($text))  
       {  
           return false;  
       }  
       if (strspn($text, chr($pad), strlen($text) - $pad) != $pad)  
       {  
          return false;  
       }  
       return substr($text, 0, -1 * $pad);  
    }  
}

C#:app

using System;
using System.IO;
using System.Security.Cryptography;
using System.Text;
using System.Threading;

public class SecretUtilTools  
{
    public string encryptForDES(string message, string key)
    {
        using (DESCryptoServiceProvider des = new DESCryptoServiceProvider())
        {
            byte[] inputByteArray = Encoding.UTF8.GetBytes(message);
            des.Key = UTF8Encoding.UTF8.GetBytes(key);
            des.IV = UTF8Encoding.UTF8.GetBytes(key);
            des.Mode = System.Security.Cryptography.CipherMode.ECB;
            System.IO.MemoryStream ms = new System.IO.MemoryStream();
            using (CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write))
            {
                cs.Write(inputByteArray, 0, inputByteArray.Length);
                cs.FlushFinalBlock();
                cs.Close();
            }
            string str = Convert.ToBase64String(ms.ToArray());
            ms.Close();
            return str;
        }
    }


    public string decryptForDES(string message, string key)
    {
        byte[] inputByteArray = Convert.FromBase64String(message);
        using (DESCryptoServiceProvider des = new DESCryptoServiceProvider())
        {
            des.Key = UTF8Encoding.UTF8.GetBytes(key);
            des.IV = UTF8Encoding.UTF8.GetBytes(key);
            des.Mode = System.Security.Cryptography.CipherMode.ECB;
            System.IO.MemoryStream ms = new System.IO.MemoryStream();
            using (CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write))
            {
                cs.Write(inputByteArray, 0, inputByteArray.Length);
                cs.FlushFinalBlock();
                cs.Close();
            }
            string str = Encoding.UTF8.GetString(ms.ToArray());
            ms.Close();
            return str;
        }
    }
   
}