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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 Public and Private key generation in Python

In this code, the only third-party library is "secrets" which is available to download and add automatically to python libraries by executing pip command. for more information see post pip command . -This program was written by Shooresh Sufiye. Feel free to copy and change it, But don't forget to mention the source. # Written by Shooresh Sufiye # RSA Algorithm Shooresh from math import * import random import secrets #===============-RSA key Class-================== class RSAkey:     publicKey = []     PrivateKey = []     sp = 0     sq = 0     dig = 0     def __init__(self,sp,sq,length):         self.sp = int(sp)         self.sq = int(sq)         self.dig = int(length)         self.cal()     def getKeys(self):         keyl = []         keyl.append(self.publicKe...
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