Password Generator & Entropy Calculator

Python toolkit for generating secure passwords and calculating entropy strength.

Features

• Multiple length options from 8 to 128 characters
• Entropy calculation based on information theory
• Control over digit and special character distribution
• Ambiguous character exclusion and sequential repetition blocking

Usage

1. Generate a password:

python web16.py

Password: aB3@xK9!mP2$qR7%

2. Analyze password strength:

python entropy.py

=== Password Entropy Calculator ===
Enter the password to analyze (or 'exit' to quit): MyP@ssw0rd123
Password analysis:
- Length: 13 characters
- Character set size: 88
- Entropy: 84.0 bits
- Strength: Strong
Characteristics:
- Contains lowercase letters: yes
- Contains uppercase letters: yes
- Contains numbers: yes
- Number of digits: 4
- Contains special characters: yes
- Number of special characters: 1

3. Customize generation parameters:

pwd = generate_password(
    length=16,         # Password length
    num_digits=3,      # Minimum digits
    num_special=3      # Minimum special chars
)

Prerequisites

1. Python 3.6+
2. Standard library only - no external dependencies required

Available Generators

File	Length	Use Case
web8.py	8 chars	Basic accounts
web16.py	16 chars	Standard security
web24.py	24 chars	Enhanced protection
web32.py	32 chars	High security
web48.py	48 chars	Critical systems
web64.py	64 chars	Maximum security
web96.py	96 chars	Cryptographic keys
web128.py	128 chars	Enterprise-grade
entropy.py	-	Strength analysis

Entropy Reference

Entropy (bits)	Strength	Recommendation
< 28	Very Weak	Avoid
28-36	Weak	Upgrade
36-60	Reasonable	Use with 2FA
60-128	Strong	Recommended
> 128	Very Strong	Excellent

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Created by Muller Matos