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Author: Shooresh sufiye
Email: shooreshsufiye@gmail.com

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One-Time Pad Encryption - In Python

In this code, no library used and everything done by standard functions of python. Simple and easy to understand. This code reads plain text and key from text files. This program was written by Shooresh Sufiye. you can copy and change it, But don't forget to mention the source. # Written by:  Shooresh Sufiye # f = open("plain.txt", "r") allplain = f.read() f.close() print ("plain text:\n ", allplain) f = open("plain.txt", "rb+") kf = open ("key.txt", "rb" ) f2= open("cipher.txt", "r+") allplain = f.read() key =[] key = kf.read() #   - encrypt plain text and save into cipher.txt for i in range(len(allplain)):     k = chr (key[i])     p = chr (allplain[i])     c = chr ((ord(p)) ^ (ord(k)))     f2.write(c) f.close() f2.close() kf.close() f2 = open("plain2.txt", "r+") kf = open ("key.txt", "rb" ) f= open("cipher.txt...
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Diffie-Hellman key generation in Python

In this code, I used math class only. here I implement Deffie-Hellman algorithm for produce public and private keys for Alice and Bob. This program was written by Shooresh Sufiye. you can copy and change it, But don't forget to mention the source. # Written by Shooresh Sufiye import random from math import * class DH:     sharedSec=None     def __init__(self):         self.cal()         def gimmi(self, v):         p = int(random.random() *1000000)         p1 = p+100         if(p>p1): p,p1=p1,p         primesList=[]         primesList = [i for i in range(p,p1) if ((len(primesList)<=5) and self.isPrime(i))]         p=random.choice(primesList)         primesList.remove(p)         P = p         return P   ...
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RSA encryption in JAVA with custom key length

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