JAVA-AES 加密

最新推荐文章于 2025-05-08 00:15:00 发布

脱发是不可能的

最新推荐文章于 2025-05-08 00:15:00 发布

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分类专栏： JAVA-AES 加密文章标签： java 加密解密密码学数据安全

本文链接：https://blog.youkuaiyun.com/weixin_43790966/article/details/113866905

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代码部分


/**
 * @program: ExtrenalLabor_XuHui
 * @description: AES加密算法uti
 * @author: Mr.Ma
 * @create: 2020-12-15 11:25
 **/
public class AESUtil {

    private static final String CHARSET_NAME = "UTF-8";
    private static final String AES_NAME = "AES";
    // 加密模式
    public static final String ALGORITHM = "AES/CBC/PKCS5Padding";
    // 密钥
    public static final String KEY = "sde@5f98H*^hsff%";
    // 偏移量
    public static final String IV = "sde@5f98H*^hsff%";
    static {
        Security.addProvider(new BouncyCastleProvider());
    }

    /**
     * 加密
     *
     * @param content
     * @return
     */
    public String encrypt(@NotNull String content) {
        byte[] result = null;
        try {
            Cipher cipher = Cipher.getInstance(ALGORITHM);
            SecretKeySpec keySpec = new SecretKeySpec(KEY.getBytes(CHARSET_NAME), AES_NAME);
            AlgorithmParameterSpec paramSpec = new IvParameterSpec(IV.getBytes());
            cipher.init(Cipher.ENCRYPT_MODE, keySpec, paramSpec);
            result = cipher.doFinal(content.getBytes(CHARSET_NAME));
        } catch (Exception e) {
            e.printStackTrace();
        }
        return Base64.encodeBase64String(result);
    }

    /**
     * 解密
     *
     * @param content
     * @return
     */
    public String decrypt(@NotNull String content) {
        try {
            Cipher cipher = Cipher.getInstance(ALGORITHM);
            SecretKeySpec keySpec = new SecretKeySpec(KEY.getBytes(CHARSET_NAME), AES_NAME);
            AlgorithmParameterSpec paramSpec = new IvParameterSpec(IV.getBytes());
            cipher.init(Cipher.DECRYPT_MODE, keySpec, paramSpec);
            return new String(cipher.doFinal(Base64.decodeBase64(content)), CHARSET_NAME);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return StringUtils.EMPTY;
    }

pom.xml

注：java本身只支持NoPadding和PKCS5Padding,而crypto-js提供的padding方式没有PKCS5Padding，所以不得以，前后端最终使用PKCS7Padding来实现功能.因此只能通过引入第三方jar包的方式让jave支持pkcs7padding

pkcs5padding

<dependency>       
 <groupId>org.bouncycastle</groupId>      
 <artifactId>bcprov-jdk16</artifactId>             
 <version>1.46</version>         
</dependency>

pkcs7padding

<!--AES/ECB/PKCS7Padding 加密-->
<dependency> 
  <groupId>org.bouncycastle</groupId> 
  <artifactId>bcprov-ext-jdk16</artifactId> 
  <version>1.45</version> 
</dependency>