ClatSecure GUI

GUI version of ClatSecure.

ClatSecure(1.03)

Changelog

• Branding updated
• Minor changes to look
• No functional changes

ClatSecure(1.02)

Changelog

• Changed the key derivation function from PBKDF2/HMAC to Argon2i
• Changed the amount of rounds and memory / iterations used. The script is now slower, but produces more secure keys.

ClatSecure(1.01)

Changelog

• Updated the scripts to include Clats97s branding
• Changed repository name from ClatsCrypt to ClatSecure`

ClatsCrypt 1.00

Release: AES Key Generator & Encryption Framework v1.0.0

This release provides the initial implementation of a Python-based AES encryption framework. It includes functionality for secure key generation, key expansion, and encryption rounds, suitable for educational, testing, or cryptographic applications.

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Key Features

1. Key Derivation

• Secure AES-128 key generation from user-provided passwords.
• Leverages PBKDF2/HMAC for password-based key derivation with the following properties:
  • Salt: Random 16-byte salt for each key.
  • Iterations: 2 cycles for computational hardness.
  • Memory: 100 MB for resistance against brute-force attacks.

2. Key Expansion

• Implements AES key expansion for 128-bit keys, generating all round keys:
  • Includes Rcon and S-Box transformations.
  • Outputs expanded keys for use in encryption rounds.

3. Encryption Rounds

• Performs AES encryption rounds:
  • SubBytes, ShiftRows, MixColumns, and AddRoundKey operations.
  • Includes the final round omitting MixColumns.

4. User Interaction

• Prompts the user for a password to generate and encrypt 100 AES keys.
• Displays the final encryption state for each key in hexadecimal format.

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Improvements and Features in This Release

• Cross-platform compatibility: Tested on Windows, macOS, and Linux.
• Modular code: Each component is implemented as a reusable function.
• High-security standards: Utilizes the argon2-cffi library for secure key derivation.
• Educational focus: Simplified and commented code for ease of learning.

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Installation

Prerequisites

• Python 3.6+
• Required Python libraries:
  • numpy
  • argon2-cffi

Install dependencies using:

pip install numpy argon2-cffi

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Usage

Run the script directly to generate AES keys and simulate encryption:

python aes_key_generator.py

• Input your password when prompted.
• The script will output the final encryption state of 100 generated keys in hexadecimal format.

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Known Limitations

1. MixColumns Operation:
   • Simplified implementation not fully compliant with AES standard (lacks GF(2^8) math).
2. Single AES Variant:
   • Only supports AES-128. AES-192 and AES-256 require modifications to key size and round count.

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Future Enhancements

• Improve MixColumns to comply with AES GF(2^8) standards.
• Extend functionality to include decryption rounds.

License

This project is licensed under Apache 2.0.

Download this release and explore AES encryption with Python!

Here are 2 histograms of 100,000 outputs. The outputs are uniform.