ECS Computer Solutions, Christchurch

Recently I came across a new file format called RSDF, these appear to be txt files which have a bunch of links in them, so called link containers.  I wanted to access the URLS in these files, but I didnt really want to entrust my computer to just “any” application. So after a bit of searching I came across this crafty german website from there I got the python script to decrypt the RSDF files, this  Python script requires:

1. Python  (doh!!)
2. Python-crypto
3. Probably something else also…..

from their its as simple as: drsdf.py rsdfcontainer.rsdf
and it outputs to your screen! So without further ado here it is:

#!/usr/bin/env python
# drsdf.py

import binascii
import base64
from Crypto.Cipher import AES
import sys

# 8C 35 19 2D 96 4D C3 18 2C 6F 84 F3 25 22 39 EB 4A 32 0D 25

file = sys.argv[1]

file = file.replace(”.ccf”, “.rsdf”)
f = open(file, “r”)
data = f.read()
f.close()

f = open(file, “w”)
f.write(data.split(”\x00″)[0])
f.close()

infile = sys.argv[1]
Key = binascii.unhexlify(’8C35192D964DC3182C6F84F3252239EB4A320D2500000000′)

IV = binascii.unhexlify(’FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF’)
IV_Cipher = AES.new(Key,AES.MODE_ECB)
IV = IV_Cipher.encrypt(IV)

obj = AES.new(Key,AES.MODE_CFB,IV)

rsdf = open(infile,’r')

data = rsdf.read()
data = binascii.unhexlify(”.join(data.split()))
data = data.splitlines()

for link in data:
link = base64.b64decode(link)
link = obj.decrypt(link)
print link.replace(’CCF: ‘,”)

rsdf.close()

Happy Downloading!

Tags: cli, cryptload, downloading, jdownloader, python, rapidshare, RSDF, upLoad!