Cybersecurity using Python

 

1. Hashing Passwords:

import hashlib

​

def hash_password(password):

    hashed_password = hashlib.sha256(password.encode()).hexdigest()

    return hashed_password

​

# Example

password = "my_secure_password"

hashed_password = hash_password(password)

print("Hashed Password:", hashed_password)

​

#clcoding.com 

Hashed Password: 2c9a8d02fc17ae77e926d38fe83c3529d6638d1d636379503f0c6400e063445f

2. Generating Random Passwords:

import random

import string

​

def generate_random_password(length=12):

    characters = string.ascii_letters + string.digits + string.punctuation

    password = ''.join(random.choice(characters) for _ in range(length))

    return password

​

# Example

random_password = generate_random_password()

print("Random Password:", random_password)

​

#clcoding.com 

Random Password: zH7~ANoO:7#S

3. Network Scanning with Scapy:

from scapy.all import IP, ICMP, sr1

​

def ping(host):

    packet = IP(dst=host)/ICMP()

    response = sr1(packet, timeout=2, verbose=0)

    if response:

        return f"{host} is online"

    else:

        return f"{host} is offline"

​

# Example

host_to_scan = "example.com"

result = ping(host_to_scan)

print(result)

​

#clcoding.com

4. Web Scraping for Security Research:

import requests

from bs4 import BeautifulSoup

​

def scrape_security_news():

    url = "https://example-security-news.com"

    response = requests.get(url)

    soup = BeautifulSoup(response.text, 'html.parser')

    headlines = soup.find_all('h2', class_='security-headline')

    return [headline.text for headline in headlines]

​

# Example

security_headlines = scrape_security_news()

print("Security Headlines:", security_headlines)

​

#clcoding.com

5. Password Cracking Simulation:

import hashlib

​

def simulate_password_cracking(hashed_password, password_list):

    for password in password_list:

        if hashlib.sha256(password.encode()).hexdigest() == hashed_password:

            return f"Password cracked: {password}"

    return "Password not found"

​

# Example

hashed_password_to_crack = "d033e22ae348aeb5660fc2140aec35850c4da997"

common_passwords = ["password", "123456", "qwerty", "admin"]

​

result = simulate_password_cracking(hashed_password_to_crack, common_passwords)

print(result)

​

#clcoding.com

6. Secure File Handling:

import os

def secure_file_deletion(file_path):

    with open(file_path, 'w') as file:

        file.write(os.urandom(1024))  

        # Overwrite the file with random data

    os.remove(file_path)

    print(f"{file_path} securely deleted")

# Example

file_path_to_delete = "example.txt"

secure_file_deletion(file_path_to_delete)

#clcoding.com