AES用户名(中文)、密码加密解密

package cn.hakim.bean; import javax.crypto.Cipher; import javax.crypto.KeyGenerator; import javax.crypto.spec.IvParameterSpec; import javax.crypto.spec.SecretKeySpec; import org.apache.commons.codec.binary.Base64; import javax.crypto.SecretKey; import java.security.SecureRandom; /******************************************************************************* * AES加解密算法 * * @author guoxp * */ public class AES { // 加密 public static String Encrypt(String sSrc, String sKey) throws Exception { if (sKey == null) { System.out.print("Key为空null"); return null; } // 判断Key是否为16位 if (sKey.length() != 16) { System.out.print("Key长度不是16位"); return null; } KeyGenerator kgen = KeyGenerator.getInstance("AES"); kgen.init(128, new SecureRandom(sKey.getBytes())); SecretKey secretKey = kgen.generateKey(); //byte[] raw = sKey.getBytes(); byte[] raw = secretKey.getEncoded(); SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES"); Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");//"算法/模式/补码方式" IvParameterSpec iv = new IvParameterSpec("0102030405060708".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()); return Base64.encodeBase64String(encrypted);//此处使用BAES64做转码功能，同时能起到2次加密的作用。 } // 解密 public static String Decrypt(String sSrc, String sKey) throws Exception { try { // 判断Key是否正确 if (sKey == null) { System.out.print("Key为空null"); return null; } // 判断Key是否为16位 if (sKey.length() != 16) { System.out.print("Key长度不是16位"); return null; } byte[] raw = sKey.getBytes("ASCII"); SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES"); Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding"); IvParameterSpec iv = new IvParameterSpec("0102030405060708".getBytes()); cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv); byte[] encrypted1 = Base64.decodeBase64(sSrc);//先用bAES64解密 try { byte[] original = cipher.doFinal(encrypted1); String originalString = new String(original,"utf-8"); return originalString; } catch (Exception e) { System.out.println(e.toString()); return null; } } catch (Exception ex) { System.out.println(ex.toString()); return null; } } public static void main(String[] args) { try { //加密 String encrypt_str = Encrypt("abcdefg", "123456789abcdefg"); System.out.println(encrypt_str); //解密 String decrypt_str = Decrypt("IUbbZKOaTg7BDTDfjy2zIg==", "123456789abcdefg"); System.out.println(decrypt_str); } catch (Exception e) { e.printStackTrace(); } } }