解密檔案

在本章中，我們討論了使用 Python 在密碼學中如何對檔案進行解密。請注意，對於解密過程，我們遵循相同的步驟，但我們不會指定輸出路徑，而會關注輸入路徑或必要的加密檔案。

程式碼

以下是用 Python 在密碼學中解密檔案的示例程式碼 -

#!/usr/bin/python
# ---------------- READ ME ---------------------------------------------
# This Script is Created Only For Practise And Educational Purpose Only
# This Script Is Created For http://bitforestinfo.blogspot.in
# This Script is Written By
#
#
##################################################
######## Please Don't Remove Author Name #########
############### Thanks ###########################
##################################################
#
#
# =================Other Configuration================
# Usages :
usage = "usage: %prog [options] "
# Version
Version="%prog 0.0.1"
# ====================================================
# Import Modules
import optparse, sys,os
from toolkit import processor as ps
def main():
   parser = optparse.OptionParser(usage = usage,version = Version)
   parser.add_option(
      '-i','--input',type = 'string',dest = 'inputfile',
      help = "File Input Path For Encryption", default = None)
   
   parser.add_option(
      '-o','--output',type = "string",dest = 'outputfile',
      help = "File Output Path For Saving Encrypter Cipher",default = ".")
   
   parser.add_option(
      '-p','--password',type = "string",dest = 'password',
      help = "Provide Password For Encrypting File",default = None)
      (options, args) =  parser.parse_args()
      # Input Conditions Checkings
      if not options.inputfile or not os.path.isfile(options.inputfile):
         print " [Error] Please Specify Input File Path"
         exit(0)
      if not options.outputfile or not os.path.isdir(options.outputfile):
         print " [Error] Please Specify Output Path"
         exit(0)
      if not options.password:
         print " [Error] No
         exit(0)
      inputfile = options.inputfile
      outputfile = options.outputfile
      password = options.password
      work = "D"
      ps.FileCipher(inputfile,outputfile,password,work)
      return
if __name__ == '__main__':
   main()

你可以使用以下命令執行上述程式碼 -

python pyfilecipher-decrypt.py -i encrypted_file_path -p password

輸出

當你執行上面的命令時，你可以觀察到以下程式碼-

請注意 - 輸出指定了加密前和解密後的雜湊值，它們記錄了相同的檔案已加密且此過程已成功完成。