C# 代码
using System; using System.IO; using System.Security.Cryptography; using System.Text; /// <summary> /// DES3加密解密 /// </summary> public class Des3 { public static void Main() { byte[] key = Convert.FromBase64String("YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4"); //key为abcdefghijklmnopqrstuvwx的Base64编码 byte[] iv = { 1, 2, 3, 4, 5, 6, 7, 8 }; var data = Encoding.UTF8.GetBytes("中国ABCabc123:{}"); Console.WriteLine("ECB模式:");//当模式为ECB时,IV无用 var encode = Des3EncodeECB(key, iv, data); var decode = Des3DecodeECB(key, iv, encode); Console.WriteLine("加密:" + Convert.ToBase64String(encode)); Console.WriteLine("解密:" + Encoding.UTF8.GetString(decode)); Console.WriteLine(); Console.WriteLine("CBC模式:"); encode = Des3EncodeCBC(key, iv, data); decode = Des3DecodeCBC(key, iv, encode); Console.WriteLine("加密:" + Convert.ToBase64String(encode)); Console.WriteLine("解密:" + Encoding.UTF8.GetString(decode)); Console.WriteLine(); Console.Read(); } #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) { try { byte[] bytes; using (var memoryStream = new MemoryStream()) { var provider = new TripleDESCryptoServiceProvider { Mode = CipherMode.CBC, Padding = PaddingMode.PKCS7 }; using (var stream = new CryptoStream(memoryStream, provider.CreateEncryptor(key, iv), CryptoStreamMode.Write)) { stream.Write(data, 0, data.Length); stream.FlushFinalBlock(); bytes = memoryStream.ToArray(); stream.Close(); } memoryStream.Close(); } return bytes; } 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 { var memoryStream = new MemoryStream(data); var provider = new TripleDESCryptoServiceProvider { Mode = CipherMode.CBC, Padding = PaddingMode.PKCS7 }; byte[] bytes; using (var stream = new CryptoStream(memoryStream, provider.CreateDecryptor(key, iv), CryptoStreamMode.Read)) { bytes = new byte[data.Length]; stream.Read(bytes, 0, bytes.Length); } return bytes; } 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="data">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 { var memoryStream = new MemoryStream(); var provider = new TripleDESCryptoServiceProvider {Mode = CipherMode.ECB, Padding = PaddingMode.PKCS7}; byte[] bytes; using (var stream = new CryptoStream(memoryStream, provider.CreateEncryptor(key, iv), CryptoStreamMode.Write)) { stream.Write(data, 0, data.Length); stream.FlushFinalBlock(); bytes = memoryStream.ToArray(); stream.Close(); } memoryStream.Close(); return bytes; } 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="data">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 { var memoryStream = new MemoryStream(data); var provider = new TripleDESCryptoServiceProvider {Mode = CipherMode.ECB, Padding = PaddingMode.PKCS7}; byte[] bytes; using (var stream = new CryptoStream(memoryStream, provider.CreateDecryptor(key, iv), CryptoStreamMode.Read)) { bytes = new byte[data.Length]; stream.Read(bytes, 0, bytes.Length); } return bytes; } catch (CryptographicException e) { Console.WriteLine("A Cryptographic error occurred: {0}", e.Message); return null; } } #endregion }Java 代码
import java.security.Key; import java.util.Base64; 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 = decryptBASE64("YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4");// key为abcdefghijklmnopqrstuvwx的Base64编码 byte[] keyiv = { 1, 2, 3, 4, 5, 6, 7, 8 }; byte[] data = "中国ABCabc123:{}".getBytes("UTF-8"); System.out.println("ECB模式:");// 当模式为ECB时,IV无用 byte[] encode = des3EncodeECB(key, data); byte[] decode = ees3DecodeECB(key, encode); System.out.println("加密:" + encryptBASE64(encode)); System.out.println("解密:" + new String(decode, "UTF-8")); System.out.println(); System.out.println("CBC模式:"); encode = des3EncodeCBC(key, keyiv, data); decode = des3DecodeCBC(key, keyiv, encode); System.out.println("加密:" + encryptBASE64(encode)); System.out.println("解密:" + new String(decode, "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 factory = SecretKeyFactory.getInstance("desede"); deskey = factory.generateSecret(spec); Cipher cipher = Cipher.getInstance("desede" + "/ECB/PKCS5Padding"); cipher.init(Cipher.ENCRYPT_MODE, deskey); byte[] out = cipher.doFinal(data); return out; } /** * 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 factory = SecretKeyFactory.getInstance("desede"); deskey = factory.generateSecret(spec); Cipher cipher = Cipher.getInstance("desede" + "/ECB/PKCS5Padding"); cipher.init(Cipher.DECRYPT_MODE, deskey); byte[] out = cipher.doFinal(data); return out; } /** * 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 factory = SecretKeyFactory.getInstance("desede"); deskey = factory.generateSecret(spec); Cipher cipher = Cipher.getInstance("desede" + "/CBC/PKCS5Padding"); IvParameterSpec ips = new IvParameterSpec(keyiv); cipher.init(Cipher.ENCRYPT_MODE, deskey, ips); byte[] out = cipher.doFinal(data); return out; } /** * 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 factory = SecretKeyFactory.getInstance("desede"); deskey = factory.generateSecret(spec); Cipher cipher = Cipher.getInstance("desede" + "/CBC/PKCS5Padding"); IvParameterSpec ips = new IvParameterSpec(keyiv); cipher.init(Cipher.DECRYPT_MODE, deskey, ips); byte[] out = cipher.doFinal(data); return out; } // Base64解码 public static String encryptBASE64(byte[] data) { Base64.Encoder encoder = Base64.getEncoder(); String encode = encoder.encodeToString(data); return encode; } // Base64编码 public static byte[] decryptBASE64(String data) throws Exception { Base64.Decoder decoder = Base64.getDecoder(); byte[] buffer = decoder.decode(data); return buffer; } }运行结果