直接上代码了。
Java控制台代码:
package Test; import java.security.Key; import javax.crypto.Cipher; import javax.crypto.SecretKeyFactory; import javax.crypto.spec.DESedeKeySpec; import javax.crypto.spec.IvParameterSpec; import org.apache.commons.codec.binary.Base64; public class Test { private static final String encoding = "UTF-8"; public static void main(String[] args) { try { String text = "20200121";// 明文 String key = "Tt3rLPrDIVIhXqAz";// 长度控制为16,作为3DES加密用的key String encryptStr = EncryptData(text, key);// 3DES加密结果 System.out.println("明文:" + text); System.out.println("密钥:" + key); System.out.println("密文:" + encryptStr); System.out.println("解密:" + DecryptData(encryptStr, key)); } catch (Exception e) { e.printStackTrace(); } } /** * DESede加密,key长度为16 * * @param plainText 明文 * @param key 密钥 * @return DESede加密结果 * @throws Exception */ static String EncryptData(String plainText, String key) throws Exception { byte[] keyBytes = key.getBytes(encoding); if (keyBytes.length == 16) { // short key ? .. extend to 24 byte key byte[] tmpKey = new byte[24]; System.arraycopy(keyBytes, 0, tmpKey, 0, 16); System.arraycopy(keyBytes, 0, tmpKey, 16, 8); keyBytes = tmpKey; } Key deskey = null; DESedeKeySpec spec = new DESedeKeySpec(keyBytes); SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede"); deskey = keyfactory.generateSecret(spec); Cipher cipher = Cipher.getInstance("desede/CBC/PKCS5Padding"); if (keyBytes.length > 8) { byte[] tmpKey = new byte[8]; System.arraycopy(keyBytes, 0, tmpKey, 0, 8); keyBytes = tmpKey; } IvParameterSpec ips = new IvParameterSpec(keyBytes); cipher.init(Cipher.ENCRYPT_MODE, deskey, ips); byte[] bOut = cipher.doFinal(plainText.getBytes(encoding)); return Base64.encodeBase64String(bOut); } /** * DESede解密,key长度为16 * * @param input DESede加密的结果 * @param key 密钥 * @return DESede解密结果 * @throws Exception */ static String DecryptData(String input, String key) throws Exception { byte[] keyBytes = key.getBytes(encoding); if (keyBytes.length == 16) { // short key ? .. extend to 24 byte key byte[] tmpKey = new byte[24]; System.arraycopy(keyBytes, 0, tmpKey, 0, 16); System.arraycopy(keyBytes, 0, tmpKey, 16, 8); keyBytes = tmpKey; } Key deskey = null; DESedeKeySpec spec = new DESedeKeySpec(keyBytes); SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede"); deskey = keyfactory.generateSecret(spec); Cipher cipher = Cipher.getInstance("desede/CBC/PKCS5Padding"); if (keyBytes.length > 8) { byte[] tmpKey = new byte[8]; System.arraycopy(keyBytes, 0, tmpKey, 0, 8); keyBytes = tmpKey; } IvParameterSpec ips = new IvParameterSpec(keyBytes); cipher.init(Cipher.DECRYPT_MODE, deskey, ips); byte[] bOut = cipher.doFinal(Base64.decodeBase64(input)); return new String(bOut, encoding); } }
C#控制台代码:
using System; using System.Text; using System.Security.Cryptography; using System.IO; namespace Test { class Program { static void Main(string[] args) { try { String text = "20200121";// 明文 String key = "Tt3rLPrDIVIhXqAz";// 长度控制为16,作为3DES加密用的key String encryptStr = EncryptData(text, key);// 3DES加密结果 Console.WriteLine("明文:" + text); Console.WriteLine("密钥:" + key); Console.WriteLine("密文:" + encryptStr); Console.WriteLine("解密:" + DecryptData(encryptStr, key)); Console.Read(); } catch (Exception ex) { Console.WriteLine("运行异常,异常信息:" + ex.Message + ex.StackTrace); Console.WriteLine("按任意键退出重试"); Console.Read(); } } /// <summary> /// TripleDES加密,key长度为16 /// </summary> /// <param name="plainText">明文</param> /// <param name="key">密钥</param> /// <returns>TripleDES加密结果</returns> public static string EncryptData(string plainText, string key) { TripleDESCryptoServiceProvider Tripledes = new TripleDESCryptoServiceProvider(); //Tripledes.Mode = CipherMode.ECB; //Tripledes.Padding = PaddingMode.PKCS7; byte[] b_input = Encoding.UTF8.GetBytes(plainText); byte[] b_key = Encoding.UTF8.GetBytes(key); MemoryStream tempStream = new MemoryStream(); //rgbKey即用于对称算法的密钥、rgbIV即用于对称算法的初始化向量,这里均使用b_key CryptoStream encStream = new CryptoStream(tempStream, Tripledes.CreateEncryptor(b_key, b_key), CryptoStreamMode.Write); encStream.Write(b_input, 0, b_input.Length); encStream.Close(); return Convert.ToBase64String(tempStream.ToArray()); } /// <summary> /// TripleDES解密,key长度为16 /// </summary> /// <param name="input">TripleDES加密的结果</param> /// <param name="key">密钥</param> /// <returns>TripleDES解密结果</returns> public static string DecryptData(string input, string key) { TripleDESCryptoServiceProvider Tripledes = new TripleDESCryptoServiceProvider(); byte[] b_input = Convert.FromBase64String(input); byte[] b_key = Encoding.UTF8.GetBytes(key); MemoryStream tempStream = new MemoryStream(); //rgbKey即用于对称算法的密钥、rgbIV即用于对称算法的初始化向量,这里均使用b_key CryptoStream encStream = new CryptoStream(tempStream, Tripledes.CreateDecryptor(b_key, b_key), CryptoStreamMode.Write); encStream.Write(b_input, 0, b_input.Length); encStream.FlushFinalBlock(); return Encoding.UTF8.GetString(tempStream.ToArray()); } } }
Java和C#运行结果一致,如下:
明文:20200121
密钥:Tt3rLPrDIVIhXqAz
密文:jHaDswvQaPn4ZvashXOTNQ==
解密:20200121
本文首发于我的CSDN博客:https://blog.csdn.net/n_ithero/article/details/104061959
原文地址:https://www.cnblogs.com/xuezhizhang/p/TripleDES.html
时间: 2024-11-12 11:29:34