我在Java上具有以下用于解密AES加密的代码，我需要在Node.js上执行相同的操作
private static SecretKeySpec secretKey;
private static byte[] key;
public static void setKey(String myKey) {
MessageDigest sha = null;
try {
key = Bytes("UTF-8");
sha = Instance("SHA-1");
key = sha.digest(key);
key = pyOf(key, 16);
secretKey = new SecretKeySpec(key, "AES");
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
}
public static String decrypt(String strToDecrypt, String secret)
{
try
{
setKey(secret);
Cipher cipher = Instance("AES/ECB/PKCS5PADDING");
cipher.init(Cipher.DECRYPT_MODE, secretKey);
return new String(cipher.Decoder().decode(strToDecrypt)));
}
catch (Exception e)
{
System.out.println("Error while decrypting: " + e.toString());
}
return null;
}
我曾尝试在以下代码下使用Crypt，但结果却不尽相同
var aesDecrypt = (text, password, bit) => {
var decipher = ateDecipheriv('aes-' + bit + '-ecb', password, Buffer.alloc(0));
decipher.setAutoPadding(false);
at([
decipher.update(text, 'base64'),
decipher.final()
]).toString();
};
我如何将上述Java代码从上面模仿到Node.js中？
回答如下：正如James所说，Java代码正在对密码进行哈希处理（并截断）以形成密钥。此外，它[[does使用标准填充。以下用于ASCII数据：
const crypto = require ('crypto');
const mydecrypt = (pw,ctx) => {
var h = ateHash('sha1'); h.update(pw,'utf8'); var k = h.digest().slice(0,16);
var d = ateDecipheriv('aes-128-ecb', k, Buffer.alloc(0));
at([d.update(ctx,'base64'), d.final()]) .toString();
}
console.log(mydecrypt('password','ks7qtmk7kt5riV/Qyy3glQ=='));
->
testdata
