使用AES在java中进行加密,并希望用Python进行解密,但结果在Python中是空的(没有错误)。 请在标记为副本之前查看代码。我想检测代码中的问题。你知道吗
java加密代码:
public static String encrypt(String plainText) throws Exception {
KeyGenerator keyGenerator = KeyGenerator.getInstance("AES");
keyGenerator.init(128);
SecretKey secretKey = keyGenerator.generateKey();
String keyStr = Base64.encodeToString(secretKey.getEncoded(), Base64.NO_WRAP);
byte[] initVector = new byte[16];
(new Random()).nextBytes(initVector);
IvParameterSpec iv = new IvParameterSpec(initVector);
SecretKeySpec skeySpec = new SecretKeySpec(secretKey.getEncoded(), "AES");
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);
byte[] plainTextByte = plainText.getBytes();
byte[] encryptedByte = cipher.doFinal(plainTextByte);
byte[] messagebytes = new byte[initVector.length + encryptedByte.length];
System.arraycopy(initVector, 0, messagebytes, 0, 16);
System.arraycopy(encryptedByte, 0, messagebytes, 16, encryptedByte.length);
return Base64.encodeToString(messagebytes, Base64.NO_WRAP);
}
Python代码
def decrypt(key, message):
"""
Input encrypted bytes, return decrypted bytes, using iv and key
"""
byte_array = message.encode("UTF-8")
iv = byte_array[0:16] # extract the 16-byte initialization vector
messagebytes = byte_array[16:] # encrypted message is the bit after the iv
cipher = AES.new(key.encode("UTF-8"), AES.MODE_CBC, iv)
decrypted_padded = cipher.decrypt(messagebytes)
decrypted = unpad(decrypted_padded)
return decrypted.decode("UTF-8");
我看到Java显式地将字符串编码为
return Base64.encodeToString(messagebytes, Base64.NO_WRAP);
处的基64但是我看到您又在用python
byte_array = message.encode("UTF-8")
编码,在这里您必须对加密的消息进行解码然后才能解密解码的信息。你知道吗
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