Password Validator & Generator

A straightforward yet effective CLI tool for creating strong passwords, evaluating their strength, and comprehending password entropy.

Features

Generating memorable passphrases and secure random passwords SHA-256 hashing, entropy computation, and password strength analysis Typical password checks Password criteria that can be customized

Application

bash password_tool.py in Python

Specifics

1. Random password generation; length customization; character type selection; and the ability to omit ambiguous characters

2. Passphrase Creation: Remarkable word combinations and a customizable separator

3. Password validation: thorough strength analysis, comments and recommendations, and standard password checks

4. Entropy Calculation - Entropy in bits - Rough crack time estimates

5. Hashing: For safe storage, use SHA-256 hashing

Requirements for Password Strength

Length: at least 8 characters, but 16+ are advised; Diversity: capital, lowercase, digits, and special characters; Entropy: 60+ bits are advised; Avoid: Sequential characters and common passwords

Safety

Creates unpredictable passwords by utilizing the secrets module for cryptographic randomness. Verifies against a database of popular passwords

Illustration

# Create a password using gen = PasswordGenerator().
password = gen.generate(exclude_ambiguous=True, length=16)

# Verify the password val = PasswordValidator() result = val.validate(password) print(f"Strength: {result['strength']}")

Technical Specifications

Language: Python 3.x - Libraries: hashlib, re, random, string, and secrets Hashing: SHA-256 - Randomness: Secure cryptography

Developer

Celal AYDIN