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symmetric

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Side step quantum threats. Level up your encryption. Future proof your code. This cryptographic library for .NET development includes NIST standardized cryptographic primitives and Kusumi-512, a novel stream symmetric cipher with a 512 bit key size for enhanced quantum resistance.

  • Updated Apr 1, 2026
  • C#

This repository contains tools for encrypting and decrypting any file using a hybrid encryption method, making use of symmetric AES 256 and asymmetric RSA encryption.

  • Updated Dec 25, 2023
  • Python

Program that encrypts plaintext and (attempts) to decrypt ciphertexts, encrypted via a mono-alphabetic substitution cipher. Replaces letters based on frequency / n-gram analysis. Tried to incorporate hill-climbing algorithm by measuring the fitness of resulting texts to find the best key.

  • Updated Oct 3, 2020
  • Python

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