c#,Java aes加密

時間 2019-11-19

標籤 c# java aes 加密欄目 C# 简体版

原文原文鏈接

1.c#版本java

    /// <summary>
    /// Aes加密解密.c#版
    /// </summary>
    public class BjfxEncryptHelper
    {
        /// <summary>
        /// 加密解密Key
        /// </summary>
        ////文檔示例
        public const string Key = "asjfasfaskjdlfljasjfsafsfsadfsdffds";/// <summary>  
        /// AES加密  
        /// </summary>  
        /// <param name="encryptStr">明文</param>  
        /// <returns></returns>  
        public static string Encrypt(string encryptStr)
        {
            return Encrypt(encryptStr, Key);
        }

        /// <summary>  
        /// AES加密  
        /// </summary>  
        /// <param name="encryptStr">明文</param>  
        /// <param name="key">密鑰</param>  
        /// <returns></returns>  
        public static string Encrypt(string encryptStr, string key)
        {

            byte[] keyArray = UTF8Encoding.UTF8.GetBytes(key);
            byte[] toEncryptArray = UTF8Encoding.UTF8.GetBytes(encryptStr);
            RijndaelManaged rDel = new RijndaelManaged();
            rDel.Key = keyArray;
            rDel.Mode = CipherMode.ECB;
            rDel.Padding = PaddingMode.PKCS7;
            ICryptoTransform cTransform = rDel.CreateEncryptor();
            byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
            return Convert.ToBase64String(resultArray, 0, resultArray.Length);

        }

        /// <summary>  
        /// AES解密  
        /// </summary>  
        /// <param name="decryptStr">密文</param>  
        /// <param name="key">密鑰</param> 
        /// <returns></returns>  
        public static string Decrypt(string decryptStr)
        {
            return Decrypt(decryptStr, Key);
        }

        /// <summary>  
        /// AES解密  
        /// </summary>  
        /// <param name="decryptStr">密文</param>  
        /// <param name="key">密鑰</param> 
        /// <returns></returns>  
        public static string Decrypt(string decryptStr, string key)
        {

            byte[] keyArray = UTF8Encoding.UTF8.GetBytes(key);
            byte[] toEncryptArray = Convert.FromBase64String(decryptStr);
            RijndaelManaged rDel = new RijndaelManaged();
            rDel.Key = keyArray;
            rDel.Mode = CipherMode.ECB;
            rDel.Padding = PaddingMode.PKCS7;
            ICryptoTransform cTransform = rDel.CreateDecryptor();
            byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
            return UTF8Encoding.UTF8.GetString(resultArray);

        }
    }

2.Java版本算法

import java.math.BigInteger;
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.spec.SecretKeySpec;
import org.apache.commons.codec.binary.Base64;
import org.apache.commons.lang3.StringUtils;
import sun.misc.BASE64Decoder;

/**
 *
 */
public class EncryptUtil {
    /**
     * 密鑰
     */
    private final String Key="asjfasfaskjdlfljasjfsafsfsadfsdffds";
    /**
     * 算法
     */
    private final String Alogorithmstr= "AES/ECB/PKCS5Padding";

    /**
     * 密鑰
     */
    public String getKey() {
        return Key;
    }

    /**
     * 算法
     */
    public String getAlogorithmstr() {
        return Alogorithmstr;
    }

    /**
     * aes解密
     *
     * @param encrypt 內容
     * @return
     * @throws Exception
     */
    public  String aesDecrypt(String encrypt) throws Exception {
        return aesDecrypt(encrypt, Key);
    }

    /**
     * aes加密
     *
     * @param content
     * @return
     * @throws Exception
     */
    public  String aesEncrypt(String content) throws Exception {
        return aesEncrypt(content, Key);
    }

    /**
     * 將byte[]轉爲各類進制的字符串
     *
     * @param bytes byte[]
     * @param radix 能夠轉換進制的範圍，從Character.MIN_RADIX到Character.MAX_RADIX，超出範圍後變爲10進制
     * @return 轉換後的字符串
     */
    public  String binary(byte[] bytes, int radix) {
        return new BigInteger(1, bytes).toString(radix);// 這裏的1表明正數
    }

    /**
     * base 64 encode
     *
     * @param bytes 待編碼的byte[]
     * @return 編碼後的base 64 code
     */
    public  String base64Encode(byte[] bytes) {
        return Base64.encodeBase64String(bytes);
    }

    /**
     * base 64 decode
     *
     * @param base64Code 待解碼的base 64 code
     * @return 解碼後的byte[]
     * @throws Exception
     */
    public  byte[] base64Decode(String base64Code) throws Exception {
        return StringUtils.isEmpty(base64Code) ? null : new BASE64Decoder().decodeBuffer(base64Code);
    }


    /**
     * AES加密
     *
     * @param content    待加密的內容
     * @param encryptKey 加密密鑰
     * @return 加密後的byte[]
     * @throws Exception
     */
    public  byte[] aesEncryptToBytes(String content, String encryptKey) throws Exception {
        KeyGenerator kgen = KeyGenerator.getInstance("AES");
        kgen.init(128);
        Cipher cipher = Cipher.getInstance(Alogorithmstr);
        cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(encryptKey.getBytes(), "AES"));

        return cipher.doFinal(content.getBytes("utf-8"));
    }


    /**
     * AES加密爲base 64 code
     *
     * @param content    待加密的內容
     * @param encryptKey 加密密鑰
     * @return 加密後的base 64 code
     * @throws Exception
     */
    public  String aesEncrypt(String content, String encryptKey) throws Exception {
        return base64Encode(aesEncryptToBytes(content, encryptKey));
    }

    /**
     * AES解密
     *
     * @param encryptBytes 待解密的byte[]
     * @param decryptKey   解密密鑰
     * @return 解密後的String
     * @throws Exception
     */
    public  String aesDecryptByBytes(byte[] encryptBytes, String decryptKey) throws Exception {
        KeyGenerator kgen = KeyGenerator.getInstance("AES");
        kgen.init(128);

        Cipher cipher = Cipher.getInstance(Alogorithmstr);
        cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(decryptKey.getBytes(), "AES"));
        byte[] decryptBytes = cipher.doFinal(encryptBytes);

        return new String(decryptBytes);
    }


    /**
     * 將base 64 code AES解密
     *
     * @param encryptStr 待解密的base 64 code
     * @param decryptKey 解密密鑰
     * @return 解密後的string
     * @throws Exception
     */
    public  String aesDecrypt(String encryptStr, String decryptKey) throws Exception {
        return StringUtils.isEmpty(encryptStr) ? null : aesDecryptByBytes(base64Decode(encryptStr), decryptKey);
    }

}

java-pom.xmlapache

引入以下依賴c#

    <dependency>
      <groupId>commons-codec</groupId>
      <artifactId>commons-codec</artifactId>
      <version>1.9</version>
    </dependency>

  <dependency>
      <groupId>org.apache.commons</groupId>
      <artifactId>commons-lang3</artifactId>
      <version>3.7</version>
  </dependency>

3.測試測試

        /// <summary>
        /// 測試加密解密
        /// </summary>
        static void TestFxEncrypt()
        {

            string encryptStr, decryptStr;
            encryptStr = "測試數據看看看卡";

            Console.WriteLine("==============  256位AES加密  ============\n");
            Console.WriteLine("加密前：" + encryptStr);
            Console.WriteLine("密  鑰：" + BjfxEncryptHelper.Key);
            Console.WriteLine();
            decryptStr = BjfxEncryptHelper.Encrypt(encryptStr);
            Console.WriteLine("加密後：" + decryptStr);

            encryptStr = BjfxEncryptHelper.Decrypt(decryptStr);
            Console.WriteLine("解密後：" + encryptStr);
            //c#加密
            //1:XtO1f0R4pCOhwLMKiku5+OWeBJTsTgzvSUb5fGQgoUM=
            //java加密
            //2:XtO1f0R4pCOhwLMKiku5+OWeBJTsTgzvSUb5fGQgoUM=

        }