highgroundmaster / kalyna

Kalyna Cipher, Hash, MAC Implementation, Cryptanalysis, E2EE Chat Application, File Encryption

Kalyna

Kalyna is Rijndael based algorithm that supports block sizes and key lengths up to 512 bits. Key length can be greater than or equal to block size and number of rounds are 10, 14 and 30 for block sizes of 128, 256 and 512 bits respectively.

Design

• Round Functions
• Key Expansion
• Encryption and Decryption

Cryptanalysis

• Security Margin
• Differential Cryptanalysis
• Integral Cryptanalysis

Application

• Chat Server
• Chat Client
• Kalyna Hash
• Kalyna MAC

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Python Notebook

The Python Notebook inside Notebook/Kalyna.ipynb folder is used to generate the following things

• DDT and LAT analysis
• Mix Columns Look Up table using the Irreducible Polynomial

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Application Usage

• To run the code please verify you have Java version 11 installed in your system
• You can then execute the code using

java -jar Kalyna.jar

• For a help message use

java -jar Kalyna.jar --help

• It has as an interface similar to git command line hence we can also get the Help message for each sub command

java -jar Kalyna.jar <command> --help

• Replace <command> with the command you would like help on - (login, server, key, integral, file)

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