import javax.crypto.Cipher; import javax.crypto.spec.SecretKeySpec; import sun.misc.BASE64Decoder; import sun.misc.BASE64Encoder; /** * java使用AES加密解密 AES-128-ECB加密 * 与mysql数据库aes加密算法通用 * 数据库aes加密解密 * -- 加密 * SELECT to_base64(AES_ENCRYPT('www.gowhere.so','jkl;POIU1234++==')); * -- 解密 * SELECT AES_DECRYPT(from_base64('Oa1NPBSarXrPH8wqSRhh3g=='),'jkl;POIU1234++=='); * @author 836508 * */ public class MyAESUtil { // 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; } byte[] raw = sKey.getBytes("utf-8"); SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES"); Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");//"算法/模式/补码方式" cipher.init(Cipher.ENCRYPT_MODE, skeySpec); byte[] encrypted = cipher.doFinal(sSrc.getBytes("utf-8")); return new BASE64Encoder().encode(encrypted);//此处使用BASE64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("utf-8"); SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES"); Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding"); cipher.init(Cipher.DECRYPT_MODE, skeySpec); byte[] encrypted1 = new BASE64Decoder().decodeBuffer(sSrc);//先用base64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) throws Exception { /* * 此处使用AES-128-ECB加密模式，key需要为16位。 */ String cKey = "jkl;POIU1234++=="; // 需要加密的字串 String cSrc = "www.gowhere.so"; System.out.println(cSrc); // 加密 String enString = MyAESUtil.Encrypt(cSrc, cKey); System.out.println("加密后的字串是：" + enString); // 解密 String DeString = MyAESUtil.Decrypt(enString, cKey); System.out.println("解密后的字串是：" + DeString); } }
2、java AES-128-CBC加密模式