Python and sqlite3 implement decryption of chrome cookie instance code, sqlite3chrome

Python and sqlite3 implement decryption of chrome cookie instance code, sqlite3chrome

The main problem studied in this article is that google fails to execute code to decrypt chrome cookies because the sqlite3 version is too low. Although I switched to the python3.5 environment, however, sqlite3 only has version 3.6.

After google for a long time, I finally found the method:

1. Enter the page http://www6.atomicorp.com/channels/atomic/centos/6/x86_64/RPMS/

2. Download atomic-sqlite-sqlite-3.8.5-2.el6.art.x86_64.rpm

3. rpm-Uvh atomic-sqlite-sqlite-3.8.5-2.el6.art.x86_64.rpm

4. Execute the command sqlite3-version. Everything is OK.

By the way, the cookie parsing code is attached.

#coding=utf-8 import os import sqlite3  #import keyring from Crypto.Cipher import AES from Crypto.Protocol.KDF import PBKDF2  #for mac #my_pass = keyring.get_password('Chrome Safe Storage', 'Chrome') #my_pass = my_pass.encode('utf8') #iterations = 1003 #cookie_file = os.path.expanduser('~/Library/Application Support/Google/Chrome/Default/Cookies')  #for linux my_pass = 'peanuts'.encode('utf8') iterations = 1 cookie_file = 'Cookies'  salt = b'saltysalt' length = 16 iv = b' ' * length     def expand_str(token):   token_len = len(token)   expand_len = (token_len // length + 1) * length - token_len   return token.encode('ascii') + b'\x0c' * expand_len   def aes_encrypt(token):   key = PBKDF2(my_pass, salt, length, iterations)   cipher = AES.new(key, AES.MODE_CBC, IV=iv)   enc_token = cipher.encrypt(token)   return b'v10' + enc_token   def aes_decrypt(token):   key = PBKDF2(my_pass, salt, length, iterations)   cipher = AES.new(key, AES.MODE_CBC, IV=iv)   dec_token = cipher.decrypt(token)   return dec_token   def query_cookies():   with sqlite3.connect(cookie_file) as conn:     sql = "select host_key, name, encrypted_value from cookies where name = 'jzysYonghu'"     #sql = "select * from cookies"     result = conn.execute(sql).fetchall()   return result   def write_cookies(enc_token):   with sqlite3.connect(cookie_file) as conn:     b = sqlite3.Binary(enc_token)     sql = """update cookies set encrypted_value = ? where name = 'remember_token'"""      conn.execute(sql, (b, ))  def change_user(token):   write_cookies(ase_encrypt(expand_str(token)))  if __name__ == '__main__':   data = query_cookies()[0][2]   print(data)   print(len(data))   print(aes_decrypt(data[3:])) 

After encryption, a v10 is added before the string, so you must remove it before decryption.

Summary

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