Python-security-tools

Small Python projects built while learning cybersecurity Python for cybersecurity in my first year of BSc Cybersecurity.

Tools

Password Auditor

Checks password strength based on length, common patterns, and weak passwords. Built using Python functions and string methods.

How to run: python password_auditor.py

Checks for:

• Passwords shorter than 8 characters
• Passwords ending with 123
• All lowercase passwords
• Common passwords like "password"

Username Validator

Validates usernames against basic security rules.

How to run: python username_validator.py

Checks for:

• Usernames starting with a number
• Usernames that are too short
• Spaces in usernames
• Reserved names like admin or root

Connection Checker

Tests if a connection can be made to a hostname on a specific port. Uses try/except for error handling.

How to run: python check_connection.py

System Info

Grabs your machine's hostname, IP address, and current directory. Saves output to system_info.txt.

How to run: python system_info.py

What I learned

• Python functions and parameters
• String methods and input validation
• File handling — reading and writing to files
• Error handling with try/except
• Importing and using os and socket libraries
• If/elif/else logic for security checks

Technologies

• Python 3
• VS Code
• Libraries: os, socket