Weldrod

Server written in Twisted for plugging in various cryptosystems dynamically.

Work in Progress.

##Installation

• Create a virtual environment in Python 2
• Clone the repository to the virtual environment
• Activate the environment and run

pip install -r requirements.txt

• Run ./server.py and voila!

##Writing Crypto Modules Let's write a module called BadCipher in file badciph.py.

If you prefer looking at the sample modules directly and figure it out yourself, you can try looking at badciph.py

• Define a dictionary metachall with the following keys
  • name
  • author
  • email
  • web
  • comments

So, metachall can be defined as

metachall = {
        'name'      : 'Bad Ciph',
        'author'    : 'gtux',
        'email'     : 'krp@****.in',
        'web'       : 'https://gtux.in',
        'comments'  : 'A very bad cipher',
        }

The cryptosystem is defined in a class (say, BadCiph) with both encrypt and decrypt methods.

For example:

class BadCiph:
    def encrypt(self, plaintext, key):
        return plaintext.encode("rot13")

    def decrypt(self, ciphertext, key):
        return ciphertext.decode("rot13")

A class Start is defined by the following construct with the property mainclass assigned the class name of your cryptosystem.

class Start:
	def __init__(self):
	    self.mainclass = BadCiph