安卓 net aes加密

蔚落 2023-10-05 21:22 21阅读 0赞

package com.bci.wx.base.util;
    
    import javax.crypto.Cipher;
    import javax.crypto.spec.IvParameterSpec;
    import javax.crypto.spec.SecretKeySpec;
    
    import sun.misc.BASE64Decoder;
    import sun.misc.BASE64Encoder;
    
    
    /**
     * AES 是一种可逆加密算法，对用户的敏感信息加密处理 对原始数据进行AES加密后，在进行Base64编码转化；
     */
    public class AESOperator {
    
        /*
         * 加密用的Key 可以用26个字母和数字组成 此处使用AES-128-CBC加密模式，key需要为16位。
         */
        private String sKey = "smkldospdosldaaa";//key，可自行修改
        private String ivParameter = "0392039203920300";//偏移量,可自行修改
        private static AESOperator instance = null;
    
        private AESOperator() {
    
        }
    
        public static AESOperator getInstance() {
            if (instance == null)
                instance = new AESOperator();
            return instance;
        }
        
    public static String Encrypt(String encData ,String secretKey,String vector) throws Exception {
            
            if(secretKey == null) {
                return null;
            }
            if(secretKey.length() != 16) {
                return null;
            }
            Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
            byte[] raw = secretKey.getBytes();
            SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
            IvParameterSpec iv = new IvParameterSpec(vector.getBytes());// 使用CBC模式，需要一个向量iv，可增加加密算法的强度
            cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);
            byte[] encrypted = cipher.doFinal(encData.getBytes("utf-8"));
            return new BASE64Encoder().encode(encrypted);// 此处使用BASE64做转码。
        }
    
    
        // 加密
        public String encrypt(String sSrc) throws Exception {
            Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
            byte[] raw = sKey.getBytes();
            SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
            IvParameterSpec iv = new IvParameterSpec(ivParameter.getBytes());// 使用CBC模式，需要一个向量iv，可增加加密算法的强度
            cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);
            byte[] encrypted = cipher.doFinal(sSrc.getBytes("utf-8"));
            return new BASE64Encoder().encode(encrypted);// 此处使用BASE64做转码。
        }
    
        // 解密
        public String decrypt(String sSrc) throws Exception {
            try {
                byte[] raw = sKey.getBytes("ASCII");
                SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
                Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
                IvParameterSpec iv = new IvParameterSpec(ivParameter.getBytes());
                cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);
                byte[] encrypted1 = new BASE64Decoder().decodeBuffer(sSrc);// 先用base64解密
                byte[] original = cipher.doFinal(encrypted1);
                String originalString = new String(original, "utf-8");
                return originalString;
            } catch (Exception ex) {
                return null;
            }
        }
        
        public String decrypt(String sSrc,String key,String ivs) throws Exception {
            try {
                byte[] raw = key.getBytes("ASCII");
                SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
                Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
                IvParameterSpec iv = new IvParameterSpec(ivs.getBytes());
                cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);
                byte[] encrypted1 = new BASE64Decoder().decodeBuffer(sSrc);// 先用base64解密
                byte[] original = cipher.doFinal(encrypted1);
                String originalString = new String(original, "utf-8");
                return originalString;
            } catch (Exception ex) {
                return null;
            }
        }
        
        public static String encodeBytes(byte[] bytes) {
            StringBuffer strBuf = new StringBuffer();
    
            for (int i = 0; i < bytes.length; i++) {
                strBuf.append((char) (((bytes[i] >> 4) & 0xF) + ((int) 'a')));
                strBuf.append((char) (((bytes[i]) & 0xF) + ((int) 'a')));
            }
    
            return strBuf.toString();
        }
    
        public static void main(String[] args) throws Exception {
            // 需要加密的字串
            String cSrc = "[{\"request_no\":\"1001\",\"service_code\":\"FS0001\",\"contract_id\":\"100002\",\"order_id\":\"0\",\"phone_id\":\"13913996922\",\"plat_offer_id\":\"100094\",\"channel_id\":\"1\",\"activity_id\":\"100045\"}]";
            
            // 加密
            long lStart = System.currentTimeMillis();
            String enString = AESOperator.getInstance().encrypt(cSrc);
            System.out.println("加密后的字串是：" + enString);
    
            long lUseTime = System.currentTimeMillis() - lStart;
            System.out.println("加密耗时：" + lUseTime + "毫秒");
            // 解密
            lStart = System.currentTimeMillis();
            String DeString = AESOperator.getInstance().decrypt(enString);
            System.out.println("解密后的字串是：" + DeString);
            lUseTime = System.currentTimeMillis() - lStart;
            System.out.println("解密耗时：" + lUseTime + "毫秒");
        }
    
    }

using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Security.Cryptography;
    using System.Text;
    using System.Threading.Tasks;
    
    namespace AES_Dome
    {
        class Program
        {
            private static string key = "smkldospdosldaaa";//key，可自行修改
            private static string iv = "0392039203920300"; //偏移量,可自行修改
            static void Main(string[] args)
            {
                string encrytpData = Encrypt("abc", key, iv);
                Console.WriteLine(encrytpData);
    
                string decryptData = Decrypt("5z9WEequVr7qtd+WoxV+Kw==", key, iv);
                Console.WriteLine(decryptData);
    
                Console.ReadLine();
            }
            public static string Encrypt(string toEncrypt, string key, string iv)
            {
                byte[] keyArray = UTF8Encoding.UTF8.GetBytes(key);
                byte[] ivArray = UTF8Encoding.UTF8.GetBytes(iv);
                byte[] toEncryptArray = UTF8Encoding.UTF8.GetBytes(toEncrypt);
    
                RijndaelManaged rDel = new RijndaelManaged();
                rDel.BlockSize = 128;
                rDel.KeySize = 256;
                rDel.FeedbackSize = 128;
                rDel.Padding = PaddingMode.PKCS7;
                rDel.Key = keyArray;
                rDel.IV = ivArray;
                rDel.Mode = CipherMode.CBC;
    
                ICryptoTransform cTransform = rDel.CreateEncryptor();
                byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
    
                return Convert.ToBase64String(resultArray, 0, resultArray.Length);
            }
    
            public static string Decrypt(string toDecrypt, string key, string iv)
            {
                byte[] keyArray = UTF8Encoding.UTF8.GetBytes(key);
                byte[] ivArray = UTF8Encoding.UTF8.GetBytes(iv);
                byte[] toEncryptArray = Convert.FromBase64String(toDecrypt);
    // 这里的模式，请保持和上面加密的一样。但源代码里，这个地方并没有修正，虽然也能正确解密。看到博客的朋友，请自行修改。// 这是个人疏忽的地址，感谢@jojoka 的提醒。
                RijndaelManaged rDel = new RijndaelManaged();
                //rDel.Key = keyArray;
                //rDel.IV = ivArray;
                //rDel.Mode = CipherMode.CBC;
                //rDel.Padding = PaddingMode.Zeros; 　　　　　　 rDel.BlockSize = 128;
                rDel.KeySize = 256;
                rDel.FeedbackSize = 128;
                rDel.Padding = PaddingMode.PKCS7;
                rDel.Key = keyArray;
                rDel.IV = ivArray;
                rDel.Mode = CipherMode.CBC;　　　　ICryptoTransform cTransform = rDel.CreateDecryptor(); 　　　　byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length); 　　　　return UTF8Encoding.UTF8.GetString(resultArray); 　　}  }}

[https://www.cnblogs.com/jys509/p/4768120.html][https_www.cnblogs.com_jys509_p_4768120.html] 侵删

[https_www.cnblogs.com_jys509_p_4768120.html]: https://www.cnblogs.com/jys509/p/4768120.html