java AES加密/解密算法 示例源码

直接解压，放入工程，运行测试。

package com;import javax.crypto.Cipher;import javax.crypto.spec.IvParameterSpec;import javax.crypto.spec.SecretKeySpec;import sun.misc.BASE64Decoder;import sun.misc.BASE64Encoder;/** * AES方式加解密算法 * @author venus4A */public class AES {/** * 由服务端提供给调用者的一个用于数据加密的共享密钥 */private String _publicKey = null;/** * * @param publicKey AES密钥 */public AES() {String publicKey = "jKV4GEAwBtcyehND";_publicKey = publicKey;}public static final String KEY_ALGORITHM = "AES";public static final String CIPHER_ALGORITHM = "AES/CTR/PKCS5Padding";public static final String ivParameter = "1234567890abcdef";/** * 解密 * @param data * @return */public String decrypt(String data) {try {SecretKeySpec skeySpec = new SecretKeySpec(_publicKey.getBytes("ASCII"), KEY_ALGORITHM);Cipher cipher = Cipher.getInstance(CIPHER_ALGORITHM);IvParameterSpec iv = new IvParameterSpec(ivParameter.getBytes());cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);byte[] encrypted1 = new BASE64Decoder().decodeBuffer(data);byte[] original = cipher.doFinal(encrypted1);String originalString = new String(original, "utf-8");return originalString;} catch (Exception ex) {ex.printStackTrace();return null;}}/** * 加密 * @param data * @return */public String encrypt(String data) {try {IvParameterSpec iv = new IvParameterSpec(ivParameter.getBytes());SecretKeySpec sKeySpec = new SecretKeySpec(_publicKey.getBytes(), KEY_ALGORITHM);Cipher cipher = Cipher.getInstance(CIPHER_ALGORITHM);cipher.init(Cipher.ENCRYPT_MODE, sKeySpec, iv);byte[] encrypted = cipher.doFinal(data.getBytes("utf-8"));return new BASE64Encoder().encode(encrypted);} catch (Exception e) {e.printStackTrace();return null;}}public static void main(String[] args) throws Exception {//举例String str = "王海平";AES aes = new AES();str = aes.encrypt(str);System.out.println("加密=" str);str = aes.decrypt(str);System.out.println("解密=" str);}}