simple encrypt/decrypt lib in python with private key

Question

Is there a simple way to encrypt/decrypt a string with a key?

Something like:

key = \'1234\'
string =  \'hello world\'
encrypted_string = encrypt(key, st         


        

Answer 1

pyDES is a DES and Triple-DES implementation completely written in python.

Here's a simple and portable example that should be secure enough for basic string encryption needs. Just put the pyDES module in the same folder as your program and try it out:

Sender's computer

>>> from pyDES import *  # pyDes if installed from pip
>>> ciphertext = triple_des('a 16 or 24 byte password').encrypt("secret message", padmode=2)  #plain-text usually needs padding, but padmode = 2 handles that automatically
>>> ciphertext
')\xd8\xbfFn#EY\xcbiH\xfa\x18\xb4\xf7\xa2'  #gibberish

Recipient's computer

>>> from pyDES import *
>>> plain_text = triple_des('a 16 or 24 byte password').decrypt(')\xd8\xbfFn#EY\xcbiH\xfa\x18\xb4\xf7\xa2', padmode=2)
>>> plain_text
"secret message"