C# 加密(Encrypt) 解密(Decrypt) 操作类 java与 C# 可以相互加密解密
public sealed class EncryptUtils { #region Base64加密解密 /// <summary> /// Base64加密 /// </summary> /// <param name="input">需要加密的字符串</param> /// <returns></returns> public static string Base64Encrypt(string input) { return Base64Encrypt(input, new UTF8Encoding()); } /// <summary> /// Base64加密 /// </summary> /// <param name="input">需要加密的字符串</param> /// <param name="encode">字符编码</param> /// <returns></returns> public static string Base64Encrypt(string input, Encoding encode) { return Convert.ToBase64String(encode.GetBytes(input)); } /// <summary> /// Base64解密 /// </summary> /// <param name="input">需要解密的字符串</param> /// <returns></returns> public static string Base64Decrypt(string input) { return Base64Decrypt(input, new UTF8Encoding()); } /// <summary> /// Base64解密 /// </summary> /// <param name="input">需要解密的字符串</param> /// <param name="encode">字符的编码</param> /// <returns></returns> public static string Base64Decrypt(string input, Encoding encode) { return encode.GetString(Convert.FromBase64String(input)); } #endregion #region DES加密解密 /// <summary> /// DES加密 /// </summary> /// <param name="data">加密数据</param> /// <param name="key">8位字符的密钥字符串</param> /// <param name="iv">8位字符的初始化向量字符串</param> /// <returns></returns> public static string DESEncrypt(string data, string key, string iv) { byte[] byKey = System.Text.ASCIIEncoding.ASCII.GetBytes(key); byte[] byIV = System.Text.ASCIIEncoding.ASCII.GetBytes(iv); DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider(); int i = cryptoProvider.KeySize; MemoryStream ms = new MemoryStream(); CryptoStream cst = new CryptoStream(ms, cryptoProvider.CreateEncryptor(byKey, byIV), CryptoStreamMode.Write); StreamWriter sw = new StreamWriter(cst); sw.Write(data); sw.Flush(); cst.FlushFinalBlock(); sw.Flush(); return Convert.ToBase64String(ms.GetBuffer(), 0, (int)ms.Length); } /// <summary> /// DES解密 /// </summary> /// <param name="data">解密数据</param> /// <param name="key">8位字符的密钥字符串(需要和加密时相同)</param> /// <param name="iv">8位字符的初始化向量字符串(需要和加密时相同)</param> /// <returns></returns> public static string DESDecrypt(string data, string key, string iv) { byte[] byKey = System.Text.ASCIIEncoding.ASCII.GetBytes(key); byte[] byIV = System.Text.ASCIIEncoding.ASCII.GetBytes(iv); byte[] byEnc; try { byEnc = Convert.FromBase64String(data); } catch { return null; } DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider(); MemoryStream ms = new MemoryStream(byEnc); CryptoStream cst = new CryptoStream(ms, cryptoProvider.CreateDecryptor(byKey, byIV), CryptoStreamMode.Read); StreamReader sr = new StreamReader(cst); return sr.ReadToEnd(); } #endregion #region MD5加密 /// <summary> /// MD5加密 /// </summary> /// <param name="input">需要加密的字符串</param> /// <returns></returns> public static string MD5Encrypt(string input) { return MD5Encrypt(input, new UTF8Encoding()); } /// <summary> /// MD5加密 /// </summary> /// <param name="input">需要加密的字符串</param> /// <param name="encode">字符的编码</param> /// <returns></returns> public static string MD5Encrypt(string input, Encoding encode) { MD5 md5 = new MD5CryptoServiceProvider(); byte[] t = md5.ComputeHash(encode.GetBytes(input)); StringBuilder sb = new StringBuilder(32); for (int i = 0; i < t.Length; i++) sb.Append(t[i].ToString("x").PadLeft(2, '0')); return sb.ToString(); } /// <summary> /// MD5对文件流加密 /// </summary> /// <param name="sr"></param> /// <returns></returns> public static string MD5Encrypt(Stream stream) { MD5 md5serv = MD5CryptoServiceProvider.Create(); byte[] buffer = md5serv.ComputeHash(stream); StringBuilder sb = new StringBuilder(); foreach (byte var in buffer) sb.Append(var.ToString("x2")); return sb.ToString(); } /// <summary> /// MD5加密(返回16位加密串) /// </summary> /// <param name="input"></param> /// <param name="encode"></param> /// <returns></returns> public static string MD5Encrypt16(string input, Encoding encode) { MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider(); string result = BitConverter.ToString(md5.ComputeHash(encode.GetBytes(input)), 4, 8); result = result.Replace("-", ""); return result; } #endregion #region 3DES 加密解密 public static string DES3Encrypt(string data, string key) { TripleDESCryptoServiceProvider DES = new TripleDESCryptoServiceProvider(); DES.Key = ASCIIEncoding.ASCII.GetBytes(key); DES.Mode = CipherMode.CBC; DES.Padding = PaddingMode.PKCS7; ICryptoTransform DESEncrypt = DES.CreateEncryptor(); byte[] Buffer = ASCIIEncoding.ASCII.GetBytes(data); return Convert.ToBase64String(DESEncrypt.TransformFinalBlock(Buffer, 0, Buffer.Length)); } public static string DES3Decrypt(string data, string key) { TripleDESCryptoServiceProvider DES = new TripleDESCryptoServiceProvider(); DES.Key = ASCIIEncoding.ASCII.GetBytes(key); DES.Mode = CipherMode.CBC; DES.Padding = System.Security.Cryptography.PaddingMode.PKCS7; ICryptoTransform DESDecrypt = DES.CreateDecryptor(); string result = ""; try { byte[] Buffer = Convert.FromBase64String(data); result = ASCIIEncoding.ASCII.GetString(DESDecrypt.TransformFinalBlock(Buffer, 0, Buffer.Length)); } catch (Exception e) { } return result; } #endregion #region DESEnCode DES加密-解密 #region DESEnCode DES加密 public static string DESEnCode(string pToEncrypt, string sKey) { // string pToEncrypt1 = HttpContext.Current.Server.UrlEncode(pToEncrypt); DESCryptoServiceProvider des = new DESCryptoServiceProvider(); byte[] inputByteArray = Encoding.GetEncoding("UTF-8").GetBytes(pToEncrypt); //建立加密对象的密钥和偏移量 //原文使用ASCIIEncoding.ASCII方法的GetBytes方法 //使得输入密码必须输入英文文本 des.Key = ASCIIEncoding.ASCII.GetBytes(sKey); des.IV = ASCIIEncoding.ASCII.GetBytes(sKey); MemoryStream ms = new MemoryStream(); CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write); cs.Write(inputByteArray, 0, inputByteArray.Length); cs.FlushFinalBlock(); StringBuilder ret = new StringBuilder(); foreach (byte b in ms.ToArray()) { ret.AppendFormat("{0:X2}", b); } ret.ToString(); return ret.ToString(); } #endregion #region DESDeCode DES解密 public static string DESDeCode(string pToDecrypt, string sKey) { // HttpContext.Current.Response.Write(pToDecrypt + "<br>" + sKey); // HttpContext.Current.Response.End(); DESCryptoServiceProvider des = new DESCryptoServiceProvider(); byte[] inputByteArray = new byte[pToDecrypt.Length / 2]; for (int x = 0; x < pToDecrypt.Length / 2; x++) { int i = (Convert.ToInt32(pToDecrypt.Substring(x * 2, 2), 16)); inputByteArray[x] = (byte)i; } des.Key = ASCIIEncoding.ASCII.GetBytes(sKey); des.IV = ASCIIEncoding.ASCII.GetBytes(sKey); MemoryStream ms = new MemoryStream(); CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write); cs.Write(inputByteArray, 0, inputByteArray.Length); cs.FlushFinalBlock(); StringBuilder ret = new StringBuilder(); // return HttpContext.Current.Server.UrlDecode(System.Text.Encoding.Default.GetString(ms.ToArray())); return System.Text.Encoding.Default.GetString(ms.ToArray()); } #endregion #endregion }
DES加密 java与 C# 可以相互加密解密两种方法
通过这个方法可以实现java和C#相互加密与解密 并能保持解密出来一致
方法一:通过.NET的key和VI来生成对应于java的key
java:
<span style="color: #888888;">import java.security.Key; import java.security.spec.AlgorithmParameterSpec; import javax.crypto.Cipher; import javax.crypto.SecretKeyFactory; import javax.crypto.spec.DESKeySpec; import javax.crypto.spec.IvParameterSpec; import sun.misc.BASE64Decoder; import sun.misc.BASE64Encoder; public class CryptoTools { private static final byte[] DESkey = { (byte) 0x15, (byte) 0xE7, (byte) 0xA1, (byte) 0x22, (byte) 0x96, (byte) 0x8B, (byte) 0x24, (byte) 0xFA };// 设置密钥，略去 private static final byte[] DESIV = { (byte) 0xCE, (byte) 0x35, (byte) 0x5, (byte) 0xD, (byte) 0x98, (byte) 0x91, (byte) 0x8, (byte) 0xA };// 设置向量，略去 static AlgorithmParameterSpec iv = null;// 加密算法的参数接口，IvParameterSpec是它的一个实现 private static Key key = null; public CryptoTools() throws Exception { DESKeySpec keySpec = new DESKeySpec(DESkey);// 设置密钥参数 iv = new IvParameterSpec(DESIV);// 设置向量 SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");// 获得密钥工厂 key = keyFactory.generateSecret(keySpec);// 得到密钥对象 } public String encode(String data) throws Exception { Cipher enCipher = Cipher.getInstance("DES/CBC/PKCS5Padding");// 得到加密对象Cipher enCipher.init(Cipher.ENCRYPT_MODE, key, iv);// 设置工作模式为加密模式，给出密钥和向量 byte[] pasByte = enCipher.doFinal(data.getBytes("utf-8")); BASE64Encoder base64Encoder = new BASE64Encoder(); return base64Encoder.encode(pasByte); } public String decode(String data) throws Exception { Cipher deCipher = Cipher.getInstance("DES/CBC/PKCS5Padding"); deCipher.init(Cipher.DECRYPT_MODE, key, iv); BASE64Decoder base64Decoder = new BASE64Decoder(); byte[] pasByte = deCipher.doFinal(base64Decoder.decodeBuffer(data)); return new String(pasByte, "UTF-8"); } public static void main(String[] args) throws Exception { CryptoTools tools = new CryptoTools(); System.out.println("加密:" + tools.encode("天下")); System.out.println("解密:" + tools.decode(tools.encode("天下"))); } }</span>
方法二:通过java的key来生成对应于.NET的key和VI
C#:
<span style="color: #888888;">using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using System.Configuration; using System.Web; using System.Security.Cryptography; using System.IO; namespace DES { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { string jiami = textBox1.Text; textBox2.Text= DESEnCode(jiami, "11111111"); } public static string DES_Key = "11111111"; #region DESEnCode DES加密 public static string DESEnCode(string pToEncrypt, string sKey) { // string pToEncrypt1 = HttpContext.Current.Server.UrlEncode(pToEncrypt); DESCryptoServiceProvider des = new DESCryptoServiceProvider(); byte[] inputByteArray = Encoding.GetEncoding("UTF-8").GetBytes(pToEncrypt); //建立加密对象的密钥和偏移量 //原文使用ASCIIEncoding.ASCII方法的GetBytes方法 //使得输入密码必须输入英文文本 des.Key = ASCIIEncoding.ASCII.GetBytes(sKey); des.IV = ASCIIEncoding.ASCII.GetBytes(sKey); MemoryStream ms = new MemoryStream(); CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write); cs.Write(inputByteArray, 0, inputByteArray.Length); cs.FlushFinalBlock(); StringBuilder ret = new StringBuilder(); foreach (byte b in ms.ToArray()) { ret.AppendFormat("{0:X2}", b); } ret.ToString(); return ret.ToString(); } #endregion #region DESDeCode DES解密 public static string DESDeCode(string pToDecrypt, string sKey) { // HttpContext.Current.Response.Write(pToDecrypt + "<br>" + sKey); // HttpContext.Current.Response.End(); DESCryptoServiceProvider des = new DESCryptoServiceProvider(); byte[] inputByteArray = new byte[pToDecrypt.Length / 2]; for (int x = 0; x < pToDecrypt.Length / 2; x++) { int i = (Convert.ToInt32(pToDecrypt.Substring(x * 2, 2), 16)); inputByteArray[x] = (byte)i; } des.Key = ASCIIEncoding.ASCII.GetBytes(sKey); des.IV = ASCIIEncoding.ASCII.GetBytes(sKey); MemoryStream ms = new MemoryStream(); CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write); cs.Write(inputByteArray, 0, inputByteArray.Length); cs.FlushFinalBlock(); StringBuilder ret = new StringBuilder(); // return HttpContext.Current.Server.UrlDecode(System.Text.Encoding.Default.GetString(ms.ToArray())); return System.Text.Encoding.Default.GetString(ms.ToArray()); } #endregion private void button2_Click(object sender, EventArgs e) { string jiemi = textBox2.Text; textBox3.Text = DESDeCode(jiemi,"11111111"); } } } </span>
java:
<span style="color: #888888;">import javax.crypto.Cipher; import javax.crypto.SecretKey; import javax.crypto.SecretKeyFactory; import javax.crypto.spec.DESKeySpec; import javax.crypto.spec.IvParameterSpec; public class Des { private byte[] desKey; //解密数据 public static String decrypt(String message,String key) throws Exception { byte[] bytesrc =convertHexString(message); Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding"); DESKeySpec desKeySpec = new DESKeySpec(key.getBytes("UTF-8")); SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES"); SecretKey secretKey = keyFactory.generateSecret(desKeySpec); IvParameterSpec iv = new IvParameterSpec(key.getBytes("UTF-8")); cipher.init(Cipher.DECRYPT_MODE, secretKey, iv); byte[] retByte = cipher.doFinal(bytesrc); return new String(retByte); } public static byte[] encrypt(String message, String key) throws Exception { Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding"); DESKeySpec desKeySpec = new DESKeySpec(key.getBytes("UTF-8")); SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES"); SecretKey secretKey = keyFactory.generateSecret(desKeySpec); IvParameterSpec iv = new IvParameterSpec(key.getBytes("UTF-8")); cipher.init(Cipher.ENCRYPT_MODE, secretKey, iv); return cipher.doFinal(message.getBytes("UTF-8")); } public static byte[] convertHexString(String ss) { byte digest[] = new byte[ss.length() / 2]; for(int i = 0; i < digest.length; i++) { String byteString = ss.substring(2 * i, 2 * i + 2); int byteValue = Integer.parseInt(byteString, 16); digest[i] = (byte)byteValue; } return digest; } public static void main(String[] args) throws Exception { String key = "11111111"; String value="aa"; String jiami=java.net.URLEncoder.encode(value, "utf-8").toLowerCase(); System.out.println("加密数据:"+jiami); String a=toHexString(encrypt(jiami, key)).toUpperCase(); System.out.println("加密后的数据为:"+a); String b=java.net.URLDecoder.decode(decrypt(a,key), "utf-8") ; System.out.println("解密后的数据:"+b); } public static String toHexString(byte b[]) { StringBuffer hexString = new StringBuffer(); for (int i = 0; i < b.length; i++) { String plainText = Integer.toHexString(0xff & b[i]); if (plainText.length() < 2) plainText = "0" + plainText; hexString.append(plainText); } return hexString.toString(); } } </span>
3DES加密 java与 C# 可以相互加密解密
这里的KEY采用Base64编码，便用分发，因为Java的Byte范围为-128至127，c#的Byte范围是0-255
核心是确定Mode和Padding，关于这两个的意思可以搜索3DES算法相关文章
一个是C#采用CBC Mode，PKCS7 Padding,Java采用CBC Mode，PKCS5Padding Padding,
另一个是C#采用ECB Mode，PKCS7 Padding,Java采用ECB Mode，PKCS5Padding Padding,
Java的ECB模式不需要IV
对字符加密时，双方采用的都是UTF-8编码
C#代码
/// <summary> /// DES3加密解密 /// </summary> public class Des3 { #region CBC模式** /// <summary> /// DES3 CBC模式加密 /// </summary> /// <param name="key">密钥</param> /// <param name="iv">IV</param> /// <param name="data">明文的byte数组</param> /// <returns>密文的byte数组</returns> public static byte[] Des3EncodeCBC( byte[] key, byte[] iv, byte[] data ) { //复制于MSDN try { // Create a MemoryStream. MemoryStream mStream = new MemoryStream(); TripleDESCryptoServiceProvider tdsp = new TripleDESCryptoServiceProvider(); tdsp.Mode = CipherMode.CBC; //默认值 tdsp.Padding = PaddingMode.PKCS7; //默认值 // Create a CryptoStream using the MemoryStream // and the passed key and initialization vector (IV). CryptoStream cStream = new CryptoStream( mStream, tdsp.CreateEncryptor( key, iv ), CryptoStreamMode.Write ); // Write the byte array to the crypto stream and flush it. cStream.Write( data, 0, data.Length ); cStream.FlushFinalBlock(); // Get an array of bytes from the // MemoryStream that holds the // encrypted data. byte[] ret = mStream.ToArray(); // Close the streams. cStream.Close(); mStream.Close(); // Return the encrypted buffer. return ret; } catch ( CryptographicException e ) { Console.WriteLine( "A Cryptographic error occurred: {0}", e.Message ); return null; } } /// <summary> /// DES3 CBC模式解密 /// </summary> /// <param name="key">密钥</param> /// <param name="iv">IV</param> /// <param name="data">密文的byte数组</param> /// <returns>明文的byte数组</returns> public static byte[] Des3DecodeCBC( byte[] key, byte[] iv, byte[] data ) { try { // Create a new MemoryStream using the passed // array of encrypted data. MemoryStream msDecrypt = new MemoryStream( data ); TripleDESCryptoServiceProvider tdsp = new TripleDESCryptoServiceProvider(); tdsp.Mode = CipherMode.CBC; tdsp.Padding = PaddingMode.PKCS7; // Create a CryptoStream using the MemoryStream // and the passed key and initialization vector (IV). CryptoStream csDecrypt = new CryptoStream( msDecrypt, tdsp.CreateDecryptor( key, iv ), CryptoStreamMode.Read ); // Create buffer to hold the decrypted data. byte[] fromEncrypt = new byte[data.Length]; // Read the decrypted data out of the crypto stream // and place it into the temporary buffer. csDecrypt.Read( fromEncrypt, 0, fromEncrypt.Length ); //Convert the buffer into a string and return it. return fromEncrypt; } catch ( CryptographicException e ) { Console.WriteLine( "A Cryptographic error occurred: {0}", e.Message ); return null; } } #endregion #region ECB模式 /// <summary> /// DES3 ECB模式加密 /// </summary> /// <param name="key">密钥</param> /// <param name="iv">IV(当模式为ECB时，IV无用)</param> /// <param name="str">明文的byte数组</param> /// <returns>密文的byte数组</returns> public static byte[] Des3EncodeECB( byte[] key, byte[] iv, byte[] data ) { try { // Create a MemoryStream. MemoryStream mStream = new MemoryStream(); TripleDESCryptoServiceProvider tdsp = new TripleDESCryptoServiceProvider(); tdsp.Mode = CipherMode.ECB; tdsp.Padding = PaddingMode.PKCS7; // Create a CryptoStream using the MemoryStream // and the passed key and initialization vector (IV). CryptoStream cStream = new CryptoStream( mStream, tdsp.CreateEncryptor( key, iv ), CryptoStreamMode.Write ); // Write the byte array to the crypto stream and flush it. cStream.Write( data, 0, data.Length ); cStream.FlushFinalBlock(); // Get an array of bytes from the // MemoryStream that holds the // encrypted data. byte[] ret = mStream.ToArray(); // Close the streams. cStream.Close(); mStream.Close(); // Return the encrypted buffer. return ret; } catch ( CryptographicException e ) { Console.WriteLine( "A Cryptographic error occurred: {0}", e.Message ); return null; } } /// <summary> /// DES3 ECB模式解密 /// </summary> /// <param name="key">密钥</param> /// <param name="iv">IV(当模式为ECB时，IV无用)</param> /// <param name="str">密文的byte数组</param> /// <returns>明文的byte数组</returns> public static byte[] Des3DecodeECB( byte[] key, byte[] iv, byte[] data ) { try { // Create a new MemoryStream using the passed // array of encrypted data. MemoryStream msDecrypt = new MemoryStream( data ); TripleDESCryptoServiceProvider tdsp = new TripleDESCryptoServiceProvider(); tdsp.Mode = CipherMode.ECB; tdsp.Padding = PaddingMode.PKCS7; // Create a CryptoStream using the MemoryStream // and the passed key and initialization vector (IV). CryptoStream csDecrypt = new CryptoStream( msDecrypt, tdsp.CreateDecryptor( key, iv ), CryptoStreamMode.Read ); // Create buffer to hold the decrypted data. byte[] fromEncrypt = new byte[data.Length]; // Read the decrypted data out of the crypto stream // and place it into the temporary buffer. csDecrypt.Read( fromEncrypt, 0, fromEncrypt.Length ); //Convert the buffer into a string and return it. return fromEncrypt; } catch ( CryptographicException e ) { Console.WriteLine( "A Cryptographic error occurred: {0}", e.Message ); return null; } } #endregion /// <summary> /// 类测试 /// </summary> public static void Test() { System.Text.Encoding utf8 = System.Text.Encoding.UTF8; //key为abcdefghijklmnopqrstuvwx的Base64编码 byte[] key = Convert.FromBase64String( "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4" ); byte[] iv = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8 }; //当模式为ECB时，IV无用 byte[] data = utf8.GetBytes( "中国ABCabc123" ); System.Console.WriteLine( "ECB模式:" ); byte[] str1 = Des3.Des3EncodeECB( key, iv, data ); byte[] str2 = Des3.Des3DecodeECB( key, iv, str1 ); System.Console.WriteLine( Convert.ToBase64String( str1 ) ); System.Console.WriteLine( System.Text.Encoding.UTF8.GetString( str2 ) ); System.Console.WriteLine(); System.Console.WriteLine( "CBC模式:" ); byte[] str3 = Des3.Des3EncodeCBC( key, iv, data ); byte[] str4 = Des3.Des3DecodeCBC( key, iv, str3 ); System.Console.WriteLine( Convert.ToBase64String( str3 ) ); System.Console.WriteLine( utf8.GetString( str4 ) ); System.Console.WriteLine(); } }
Java代码
import java.security.Key; import javax.crypto.Cipher; import javax.crypto.SecretKeyFactory; import javax.crypto.spec.DESedeKeySpec; import javax.crypto.spec.IvParameterSpec; import sun.misc.BASE64Decoder; import sun.misc.BASE64Encoder; public class Des3 { public static void main(String[] args) throws Exception { byte[] key=new BASE64Decoder().decodeBuffer("YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4"); byte[] keyiv = { 1, 2, 3, 4, 5, 6, 7, 8 }; byte[] data="中国ABCabc123".getBytes("UTF-8"); System.out.println("ECB加密解密"); byte[] str3 = des3EncodeECB(key,data ); byte[] str4 = ees3DecodeECB(key, str3); System.out.println(new BASE64Encoder().encode(str3)); System.out.println(new String(str4, "UTF-8")); System.out.println(); System.out.println("CBC加密解密"); byte[] str5 = des3EncodeCBC(key, keyiv, data); byte[] str6 = des3DecodeCBC(key, keyiv, str5); System.out.println(new BASE64Encoder().encode(str5)); System.out.println(new String(str6, "UTF-8")); } /** * ECB加密,不要IV * @param key 密钥 * @param data 明文 * @return Base64编码的密文 * @throws Exception */ public static byte[] des3EncodeECB(byte[] key, byte[] data) throws Exception { Key deskey = null; DESedeKeySpec spec = new DESedeKeySpec(key); SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede"); deskey = keyfactory.generateSecret(spec); Cipher cipher = Cipher.getInstance("desede" + "/ECB/PKCS5Padding"); cipher.init(Cipher.ENCRYPT_MODE, deskey); byte[] bOut = cipher.doFinal(data); return bOut; } /** * ECB解密,不要IV * @param key 密钥 * @param data Base64编码的密文 * @return 明文 * @throws Exception */ public static byte[] ees3DecodeECB(byte[] key, byte[] data) throws Exception { Key deskey = null; DESedeKeySpec spec = new DESedeKeySpec(key); SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede"); deskey = keyfactory.generateSecret(spec); Cipher cipher = Cipher.getInstance("desede" + "/ECB/PKCS5Padding"); cipher.init(Cipher.DECRYPT_MODE, deskey); byte[] bOut = cipher.doFinal(data); return bOut; } /** * CBC加密 * @param key 密钥 * @param keyiv IV * @param data 明文 * @return Base64编码的密文 * @throws Exception */ public static byte[] des3EncodeCBC(byte[] key, byte[] keyiv, byte[] data) throws Exception { Key deskey = null; DESedeKeySpec spec = new DESedeKeySpec(key); SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede"); deskey = keyfactory.generateSecret(spec); Cipher cipher = Cipher.getInstance("desede" + "/CBC/PKCS5Padding"); IvParameterSpec ips = new IvParameterSpec(keyiv); cipher.init(Cipher.ENCRYPT_MODE, deskey, ips); byte[] bOut = cipher.doFinal(data); return bOut; } /** * CBC解密 * @param key 密钥 * @param keyiv IV * @param data Base64编码的密文 * @return 明文 * @throws Exception */ public static byte[] des3DecodeCBC(byte[] key, byte[] keyiv, byte[] data) throws Exception { Key deskey = null; DESedeKeySpec spec = new DESedeKeySpec(key); SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede"); deskey = keyfactory.generateSecret(spec); Cipher cipher = Cipher.getInstance("desede" + "/CBC/PKCS5Padding"); IvParameterSpec ips = new IvParameterSpec(keyiv); cipher.init(Cipher.DECRYPT_MODE, deskey, ips); byte[] bOut = cipher.doFinal(data); return bOut; } }
