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我刚刚完成了一个用于解密或 encrpyt 的 AES 类，它在 Windows 上运行良好，但无法在 linux 上运行，引发如下错误：

给定最终块未正确填充

完整代码如下：

/**
 * AESTest.java
 * 
 * @author liuyincan
 * @Time 2013-12-12 下午1:25:44
 */
public class AES {


public static String generateKey(int len) {
    try {
        KeyGenerator keyGen = KeyGenerator.getInstance("AES");
        keyGen.init(len);
        Key key = keyGen.generateKey();

        return ParserStringUtils.toHexString(key.getEncoded());
    } catch (Exception e) {
        return null;
    }
}


/**
 * 加密
 * 
 * @param content
 *            待加密内容
 * @param key
 *            加密的密钥
 * @return
 */
public static String encode(String content, String key) {
    try {
        KeyGenerator kgen = KeyGenerator.getInstance("AES");
        kgen.init(128, new SecureRandom(key.getBytes()));
        SecretKey secretKey = kgen.generateKey();
        byte[] enCodeFormat = secretKey.getEncoded();
        SecretKeySpec secretKeySpec = new SecretKeySpec(enCodeFormat, "AES");
        Cipher cipher = Cipher.getInstance("AES");
        byte[] byteContent = content.getBytes("utf-8");
        cipher.init(Cipher.ENCRYPT_MODE, secretKeySpec);
        byte[] byteRresult = cipher.doFinal(byteContent);
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < byteRresult.length; i++) {
            String hex = Integer.toHexString(byteRresult[i] & 0xFF);
            if (hex.length() == 1) {
                hex = '0' + hex;
            }
            sb.append(hex.toUpperCase());
        }
        return sb.toString();
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    } catch (NoSuchPaddingException e) {
        e.printStackTrace();
    } catch (InvalidKeyException e) {
        e.printStackTrace();
    } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
    } catch (IllegalBlockSizeException e) {
        e.printStackTrace();
    } catch (BadPaddingException e) {
        e.printStackTrace();
    }
    return null;
}

/**
 * 解密
 * 
 * @param content
 *            待解密内容
 * @param key
 *            解密的密钥
 * @return
 */
public static String decode(String content, String key) {
    if (content.length() < 1)
        return null;
    byte[] byteRresult = new byte[content.length() / 2];
    for (int i = 0; i < content.length() / 2; i++) {
        int high = Integer.parseInt(content.substring(i * 2, i * 2 + 1), 16);
        int low = Integer.parseInt(content.substring(i * 2 + 1, i * 2 + 2), 16);
        byteRresult[i] = (byte) (high * 16 + low);
    }
    try {
        KeyGenerator kgen = KeyGenerator.getInstance("AES");
        kgen.init(128, new SecureRandom(key.getBytes()));
        SecretKey secretKey = kgen.generateKey();
        byte[] enCodeFormat = secretKey.getEncoded();
        SecretKeySpec secretKeySpec = new SecretKeySpec(enCodeFormat, "AES");
        Cipher cipher = Cipher.getInstance("AES");
        cipher.init(Cipher.DECRYPT_MODE, secretKeySpec);
        byte[] result = cipher.doFinal(byteRresult);
        return new String(result);
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    } catch (NoSuchPaddingException e) {
        e.printStackTrace();
    } catch (InvalidKeyException e) {
        e.printStackTrace();
    } catch (IllegalBlockSizeException e) {
        e.printStackTrace();
    } catch (BadPaddingException e) {
        e.printStackTrace();
    }
    return null;
}

请帮我解决问题，否则我的老板会解雇我，非常感谢

4

1 回答 1

-1

Cipher.getInstance("AES");- 这给出了 AES 的默认实现。

在 Oracle Java 6 和后期 Java 7 之间的某个地方，这将形式更改AES/ECB/NoPadding为AES/ECB/PKCS5Padding.

将这些行更改为：

  • Cipher.getInstance("AES/ECB/PKCS5Padding");
于 2016-08-08T12:07:35.793 回答