醃菜後文件大小顯着增加

Question

我正在讀文件並將數據（一旦加密後）發送到字典中，並在加密前後使用數據散列。然後我醃製字典，但發現文件大小與源文件大小相比是巨大的。如果我將加密數據直接寫入文件，則其大小與源相同。任何想法爲什麼我的醃製文件是如此之大？

#Encrypt data and get hashes   
def encryptAndExportFile(self, key, inFile, outFile): 

    openInFile = open(inFile,"rb") 
    inFileSize = os.path.getsize(inFile) 
    inFileData = openInFile.readlines() 
    openInFile.close() 

    """ initialise cipher """ 

    cipher = AES.new(key, AES.MODE_CFB) 

    """ initialise MD5 """ 

    m = hashlib.md5() #hash 
    h = hashlib.md5() #hash of encrypted dataq 

    encryptedData = [] 

    for data in inFileData: 

     m.update(data) 
     encData = cipher.encrypt(data) 
     h.update(encData) 
     encryptedData.append(encData) 


    hashResult = m.digest() 
    encHashResult = h.digest() 

    return hashResult, encryptedData, encHashResult 

def storeEncryptedObject(self, obj, path): 

    outFile = open(path, 'wb') 
    pickle.dump(obj, outFile) 
    outFile.close() 

Answer 1

嘗試使用二進制泡菜通過指定protocol=2作爲關鍵字參數和pickle.dump。它應該更有效率。