package com.ruoyi.jianguan.elutong.core;
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import org.slf4j.LoggerFactory;
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import javax.crypto.Cipher;
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import javax.crypto.spec.SecretKeySpec;
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public class AESTools {
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private static final String KEY_ALGORITHM = "AES";
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private static final String DEFAULT_CIPHER_ALGORITHM = "AES/ECB/PKCS5Padding";// 默认的加密算法
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/**
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* AES 加密操作
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*
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* @param content 待加密内容
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* @param password 加密密码
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* @return 返回Base64转码后的加密数据
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*/
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public static String encrypt(String content, String password) {
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try {
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Cipher cipher = Cipher.getInstance(DEFAULT_CIPHER_ALGORITHM);// 创建密码器
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byte[] byteContent = content.getBytes("utf-8");
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cipher.init(Cipher.ENCRYPT_MODE, getSecretKey(password));// 初始化为加密模式的密码器
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byte[] result = cipher.doFinal(byteContent);// 加密
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return Base64Tools.encodeToString(result);// 通过Base64转码返回
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} catch (Exception ex) {
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LoggerFactory.getLogger(AESTools.class).error("", ex);
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throw new RuntimeException("AES加密失败:" + content);
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}
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}
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/**
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* AES 解密操作
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*
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* @param content
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* @param password
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* @return
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*/
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public static String decrypt(String content, String password) {
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try {
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// 实例化
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Cipher cipher = Cipher.getInstance(DEFAULT_CIPHER_ALGORITHM);
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// 使用密钥初始化，设置为解密模式
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cipher.init(Cipher.DECRYPT_MODE, getSecretKey(password));
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// 执行操作
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byte[] result = cipher.doFinal(Base64Tools.decodeFromString(content));
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return new String(result, "utf-8");
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} catch (Exception ex) {
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LoggerFactory.getLogger(AESTools.class).error("", ex);
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throw new RuntimeException("AES解密失败:" + content);
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}
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}
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/**
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* 生成加密秘钥
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*
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* @return
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*/
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private static SecretKeySpec getSecretKey(final String password) {
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try {
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return new SecretKeySpec(password.getBytes("UTF-8"), KEY_ALGORITHM);// 转换为AES专用密钥
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} catch (Exception ex) {
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LoggerFactory.getLogger(AESTools.class).error("", ex);
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throw new RuntimeException("生成加密秘钥");
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}
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}
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}
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