128 lines
3.8 KiB
Java
128 lines
3.8 KiB
Java
package com.sgcc.utils;
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import ch.qos.logback.core.boolex.EvaluationException;
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import lombok.extern.slf4j.Slf4j;
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import org.apache.commons.codec.binary.Base64;
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import org.bouncycastle.jce.provider.BouncyCastleProvider;
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import javax.crypto.Cipher;
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import javax.crypto.spec.IvParameterSpec;
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import javax.crypto.spec.SecretKeySpec;
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import java.security.Security;
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/**
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* AES加密/解密工具类
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*
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* @author zhaoyuanyuan
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* @version 1.0.0
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* @date 2024/11/22 14:03
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*/
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@Slf4j
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public class AESPKCS7PaddingUtils {
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/**
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* 密钥算法
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*/
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private static final String KEY_ALGORITHM = "AES";
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/**
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* 加密/解密算法 / 工作模式 / 填充方式
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* Java 6支持PKCS5Padding填充方式
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* Bouncy Castle支持PKCS7Padding填充方式
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*/
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private static final String CIPHER_ALGORITHM = "AES/CBC/PKCS7Padding";
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/**
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* 偏移量，只有CBC模式才需要
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*/
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private final static String ivParameter = "0000000000000000";
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/**
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* AES要求密钥长度为128位或192位或256位，java默认限制AES密钥长度最多128位
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*/
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public static String secretKey = "";
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/**
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* 编码格式
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*/
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public static final String ENCODING = "utf-8";
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static {
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//如果是PKCS7Padding填充方式，则必须加上下面这行
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Security.addProvider(new BouncyCastleProvider());
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}
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/**
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* AES加密
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*
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* @param source 源字符串
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* @return {@code String }
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* @author zhaoyuanyuan
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* @date 2024/11/22 14:05
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*/
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public static String encrypt(String source) {
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try {
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byte[] sourceBytes = source.getBytes(ENCODING);
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byte[] keyBytes = secretKey.getBytes(ENCODING);
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Cipher cipher = Cipher.getInstance(CIPHER_ALGORITHM, "BC");
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IvParameterSpec iv = new IvParameterSpec(ivParameter.getBytes(ENCODING));
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cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(keyBytes, KEY_ALGORITHM),iv);
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byte[] decrypted = cipher.doFinal(sourceBytes);
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return Base64.encodeBase64String(decrypted);
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} catch (Exception e) {
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log.error(e.toString());
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}
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return null;
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}
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/**
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* AES解密
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*
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* @param encryptStr 加密后的密文
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* @return {@code String }
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* @author zhaoyuanyuan
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* @date 2024/11/22 14:05
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*/
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public static String decrypt(String encryptStr) {
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try {
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byte[] sourceBytes = Base64.decodeBase64(encryptStr);
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byte[] keyBytes = secretKey.getBytes(ENCODING);
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Cipher cipher = Cipher.getInstance(CIPHER_ALGORITHM, "BC");
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IvParameterSpec iv = new IvParameterSpec(ivParameter.getBytes(ENCODING));
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cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(keyBytes, KEY_ALGORITHM),iv);
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byte[] decoded = cipher.doFinal(sourceBytes);
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return new String(decoded, ENCODING);
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} catch (Exception e) {
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log.error(e.toString());
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}
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return null;
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}
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/**
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* 校验密码
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*
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* @param inputPassword 输入密码
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* @param password 数据库存储密码
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* @return boolean
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* @author zhaoyuanyuan
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* @date 2024/11/23 09:40
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*/
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public static boolean validatePassword(String inputPassword, String password) {
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if (decrypt(inputPassword).equals(decrypt(password))) {
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return true;
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}
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return false;
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}
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public static void main(String[] args) throws Exception {
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//加密
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String enString = AESPKCS7PaddingUtils.encrypt("12345678");
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System.out.println("加密后的字串是：" + enString);
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// 解密
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String DeString = AESPKCS7PaddingUtils.decrypt("wUpDBpZlm//omEBf20WCag==");
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System.out.println("解密后的字串是：" + DeString);
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}
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}
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