如何解密通過加密AES算法加密的字符串

我正要面臨一個問題來解密python模塊中的字符串。我在節點js文件中加密了一個字符串並存儲在數據庫中。在Python文件中從數據庫中獲取相同的字符串並嘗試在Python文件中解密該字符串。如何解密通過加密AES算法加密的字符串

我使用下面的配置和加密庫來加密節點文件中的字符串。

/* jshint node: true */ 
'use strict'; 
var crypto = require('crypto'); 
var secureKeyStore = require('./keyEncryption').keyEncryption; 

exports.encryptData = function (data) { 
    var cipher = crypto.createCipher(secureKeyStore.decrypt('aes-256-ctr'), secureKeyStore.decrypt('1a2a3a4a5a6a7a8b1b2b3b4b5b6b7b8')); 
    var crypted = cipher.update(data, 'utf8', 'hex'); 
    crypted += cipher.final('hex'); 
    return crypted; 
}; 

exports.decryptData = function (data) { 
    var decipher = crypto.createDecipher('aes-256-ctr'), secureKeyStore.decrypt('1a2a3a4a5a6a7a8b1b2b3b4b5b6b7b8')); 
    var dec = decipher.update(data, 'hex', 'utf8'); 
    dec += decipher.final('utf8'); 
    return dec; 
};

this.encryptData（'[email protected] '）; //將返回3eaef0dd0caa0f40ff52879f67d2af150b77adb2e807cc4721cf

this.decryptData（' 3eaef0dd0caa0f40ff52879f67d2af150b77adb2e807cc4721cf'）; //將返回[email protected]

我想在Python中使用相同的方法和配置，請幫助我。我是新的Python，但仍然，我嘗試了一些，但無法實現我想要的。以下是我的Python代碼。

import sys 
    import chilkat 

    crypt = chilkat.CkCrypt2() 

    # AES is also known as Rijndael. 
    crypt.put_CryptAlgorithm("aes") 

    # CipherMode may be "ctr", "cfb", "ecb" or "cbc" 
    crypt.put_CipherMode("ctr") 

    # KeyLength may be 128, 192, 256 
    crypt.put_KeyLength(256) 

    # Counter mode emits the exact number of bytes input, and therefore 
    # padding is not used. The PaddingScheme property does not apply with CTR mode. 

    # EncodingMode specifies the encoding of the output for 
    # encryption, and the input for decryption. 
    # It may be "hex", "url", "base64", "quoted-printable", or many other choices. 
    crypt.put_EncodingMode("hex") 

    # An initialization vector (nonce) is required if using CTR mode. 
    # The length of the IV is equal to the algorithm's block size. 
    # It is NOT equal to the length of the key. 
    ivHex = "000102030405060708090A0B0C0D0E0F" 
    crypt.SetEncodedIV(ivHex,"hex") 

    # The secret key must equal the size of the key. For 
    # 256-bit encryption, the binary secret key is 32 bytes. 
    # For 128-bit encryption, the binary secret key is 16 bytes. 
    keyHex = "000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F" 
    crypt.SetEncodedKey(keyHex,"hex") 

    # Encrypt a string... 
    # The input string is 44 ANSI characters (i.e. 44 bytes), so 
    # the output should be 48 bytes (a multiple of 16). 
    # Because the output is a hex string, it should 
    # be 96 characters long (2 chars per byte). 
    encStr = crypt.encryptStringENC("[email protected]") 
    print('coming from here encryptStringENC',encStr) 

    decrypt = chilkat.CkCrypt2() 

    decrypt.put_CryptAlgorithm("aes") 
    decrypt.put_CipherMode("ctr") 
    decrypt.put_KeyLength(256) 
    decrypt.put_EncodingMode("hex") 
    decrypt.SetEncodedIV(ivHex,"hex") 
    decrypt.SetEncodedKey(keyHex,"hex") 


    decStr = decrypt.decryptStringENC(encStr) 
    print('decrypted data',decStr)

在此先感謝。

來源

2017-08-29 Manish Joshi

哪兒了'ivHex =「000102030405060708090A0B0C0D0E0F」'和'keyHex =「000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F」'Co電子的每個元素從？它們必須匹配加密值。 – zaph

當你在函數調用中嵌入函數調用，例如'secureKeyStore.decrypt（config.password）'可能看起來像「leet/1337」，但調試變得非常困難，因爲調試時無法檢查該值。不要這樣做，請使用中間臨時變量。 – zaph

要解決此問題，我在節點js中創建了一個腳本。這將採取所有加密的用戶ID並返回解密形式。

var crypto = require('cryptojs'); 

function addDecryptedUserId(data) { 
    if (data.length) { 
    data.forEach(function (element) { 
     if (element.userId) {  
     element.decryptedUserId = crypto.decryptData(element.userId); 
     } 
    }); 
    return data; 
    } else { 
    return []; 
    } 
}

以上功能將所有的元素和新的屬性添加到與名爲「decryptedUserId」

來源

2017-09-10 06:36:57

如何解密通過加密AES算法加密的字符串

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