几周前我收到了这篇文章并且工作得很好:适用于 Java 和 Javascript 的兼容 AES 算法
现在,我需要执行相反的操作,但是一旦进入java,我就会得到这个异常:
javax.crypto.BadPaddingException: Given final block not properly padded
at com.sun.crypto.provider.CipherCore.doFinal(CipherCore.java:966)
at com.sun.crypto.provider.CipherCore.doFinal(CipherCore.java:824)
at com.sun.crypto.provider.AESCipher.engineDoFinal(AESCipher.java:436)
at javax.crypto.Cipher.doFinal(Cipher.java:2165)
这是我在 JavaScript 中所做的“反向”操作:
var rkEncryptionKey = CryptoJS.enc.Base64.parse('u/Gu5posvwDsXUnV5Zaq4g==');
var rkEncryptionIv = CryptoJS.enc.Base64.parse('5D9r9ZVzEYYgha93/aUK2w==');
function encryptString(stringToEncrypt) {
var utf8Stringified = CryptoJS.enc.Utf8.parse(stringToEncrypt);
var encrypted = CryptoJS.AES.encrypt(utf8Stringified.toString(), rkEncryptionKey, {mode: CryptoJS.mode.CBC, padding: CryptoJS.pad.Pkcs7, iv: rkEncryptionIv});
return CryptoJS.enc.Base64.parse(encrypted.toString()).toString();
}
我以为这就是全部了?
[EDIT]
加密后的字符串如下:{"company_name":"asdfasdfasd","customer_name":"asdfasdfasdfasdf","phone_number":"asdfasdfasdfasdf","email":"asdfasdfasdfasdfads"}
当从java到java进行加密/解密时,它可以工作,当从java到javascript进行加密/解密时,也可以工作,但从javascript到java,则不起作用。
Java代码
public String toJson(final String encrypted) {
try {
SecretKey key = new SecretKeySpec(Base64.decodeBase64("u/Gu5posvwDsXUnV5Zaq4g=="), "AES");
AlgorithmParameterSpec iv = new IvParameterSpec(Base64.decodeBase64("5D9r9ZVzEYYgha93/aUK2w=="));
byte[] decodeBase64 = Base64.decodeBase64(encrypted);
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
cipher.init(Cipher.DECRYPT_MODE, key, iv);
return new String(cipher.doFinal(decodeBase64), "UTF-8");
} catch (Exception e) {
throw new RuntimeException("This should not happen in production.", e);
}
}