如何在Go中实现CryptoJS.AES.decrypt

Question

我使用 JavaScript 中的 CryptoJS 使用给定密钥进行“简单”AES 解密

var CryptoJS = require('crypto-js');

let encrypted = 'U2FsdGVkX19dGrnVQb3BYZ9SWtQBCt2XZDeWFBEfWoi3qnSHg26aQnADUKjTDtSgpPUDzXc59XrIBsTZp9IRg4dYy9Lo0/GjSVn8qlINhE8NJXozQvUNPJSs6nvWSiivCsh9KHGsWFEusMeTefM9V2hKRpQHnFp5VHDLPgGImjHXOQO71eO4qFoQ3ESqUdnDO94nlTjcJU8AP+GabRMjHP08OVz87uyV4SfvT7AZhAYuOPOumHbJaV5nHz2ouqBZgXR3OK07AUk6V+Faz43BT3Qd2+xGLyz8C+teekmudVhmGlnzvMK/VUs0bNDUttdVVnkz/VbXVOj++07uhDsJoMKzZQYTNLkIl9HnuXDmhKOrLSYs2EYpNrH9T/2ZP3nwqJaI7bbLBCfCpNFGNLY4jyNou4Bl5GEK6sxg0zraUCZTgvfuuvBpKWFcFhPvYf8eJGoI3dOWTRWyRnS6e4j3bg==';
let key = 'KBlgcIOrad7EYpiz9LNNTMSg98QoqSVK';

var decrypted = CryptoJS.AES.decrypt(encrypted, key);

let data = decrypted.toString(CryptoJS.enc.Utf8);

console.log(data);

我尝试在 Go (Golang) 中解密该数据，但失败了。我对 AES 一无所知，这是我到目前为止的代码

package main

import (
    "crypto/aes"
    "crypto/cipher"
    "encoding/base64"
    "fmt"
)

func main() {
    encrypted := "U2FsdGVkX19dGrnVQb3BYZ9SWtQBCt2XZDeWFBEfWoi3qnSHg26aQnADUKjTDtSgpPUDzXc59XrIBsTZp9IRg4dYy9Lo0/GjSVn8qlINhE8NJXozQvUNPJSs6nvWSiivCsh9KHGsWFEusMeTefM9V2hKRpQHnFp5VHDLPgGImjHXOQO71eO4qFoQ3ESqUdnDO94nlTjcJU8AP+GabRMjHP08OVz87uyV4SfvT7AZhAYuOPOumHbJaV5nHz2ouqBZgXR3OK07AUk6V+Faz43BT3Qd2+xGLyz8C+teekmudVhmGlnzvMK/VUs0bNDUttdVVnkz/VbXVOj++07uhDsJoMKzZQYTNLkIl9HnuXDmhKOrLSYs2EYpNrH9T/2ZP3nwqJaI7bbLBCfCpNFGNLY4jyNou4Bl5GEK6sxg0zraUCZTgvfuuvBpKWFcFhPvYf8eJGoI3dOWTRWyRnS6e4j3bg=="
    key := "KBlgcIOrad7EYpiz9LNNTMSg98QoqSVK"

    e, _ := base64.StdEncoding.DecodeString(encrypted)
    k := []byte(key)

    dst, err := decryptAES(e, k)
    if err != nil {
        panic(err)
    }

    fmt.Println(string(dst))
}

func decryptAES(ciphertext []byte, key []byte) ([]byte, error) {
    block, err := aes.NewCipher(key)
    if err != nil {
        return nil, err
    }

    if len(ciphertext) < aes.BlockSize {
        return nil, fmt.Errorf("ciphertext is too short")
    }

    iv := ciphertext[:aes.BlockSize]
    ciphertext = ciphertext[aes.BlockSize:]

    stream := cipher.NewCFBDecrypter(block, iv)
    plaintext := make([]byte, len(ciphertext))
    stream.XORKeyStream(plaintext, ciphertext)

    return plaintext, nil
}

结果：�9�����ff���������������jTY:��SV�PZLDw%�z��0���&���j@ '��_H��0+����b�8�b}�;Y�d���0�^P얿L�aC�3�2�m��d׺�h� -׸��%Z(0��c�v�r�:�=�>}���b��n������g�lu}�������&�3� .�%|M��fxdGW27z�D�J���"(�[D�+<��n�z�4:����� ��iZs�ix��G�$��.= �3J��5{"g��#z ���Z�#���@���Xs��#�ZR;���VI������ ��w�X/�bp�r ��

快速尝试：https://goplay.tools/snippet/QooAajJ4ky0

请帮助我使用 Go 解密该数据或修复我的代码。谢谢你<3

Answer 1

在 @Topaco 的评论中添加更多详细信息，

根据

CryptoJS

文档，默认模式为

CBC

。所以你的密文是以

CBC

模式加密的。

但是在您的

go

代码中，您使用了

CFB

模式来解密密文，这显然不是正确的模式。而不是

cipher.NewCFBDecrypter(block, iv)

，你必须使用

NewCFBDecrypter

，NewCBCDecrypter