Crypto projects in python, e.g. Attacks to Vigenere, RSA, Telnet Protocol, Hip Replacement , Vernam cipher, Crack Zip Files, Encryptions RC4, Steganography, Feistel cipher, Superincreasing Knapsac, Elliptic Curve Cryptography, Diffie Hellman & EDF.

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• Updated Mar 6, 2023
• Python

Obscure sequential IDs through reversable transformation

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• Updated Dec 12, 2025
• Python

A collection of notes on mathematical Cryptography, ranging from classical methods through contemporary.

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• Updated Feb 15, 2025

Cryptanalysis of Enigma and SPN, and number theory algorithms.

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• Updated Dec 29, 2017
• TeX

Format Preserving Encryption for Credit Card Numbers using AES

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• Updated Feb 27, 2018
• Python

Keyed, reversible permutation for obfuscating sequential integer IDs. A frozen spec plus canonical vectors, so every language agrees byte-for-byte. Rust reference + TypeScript port.

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• Updated Oct 21, 2026
• Rust

Python programming on Cryptography techniques

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• Updated Dec 1, 2021
• Jupyter Notebook

Gas-efficient stateless shuffle on Ethereum

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• Updated Aug 30, 2026
• C

Implementation of Cryptography Algorithms

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• Updated Nov 28, 2024
• C

Stateless, parallelizable, keyed, random accesible, reversible shuffle module.

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• Updated Nov 11, 2020
• Go

A family of block ciphers built from HChaCha20 for use in the PACT/comPACT and SC transforms for AEAD commitment.

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• Updated Nov 3, 2024
• C#

C++ realization of Feistel network

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• Updated Dec 29, 2014
• C++

Implementation of Blowfish encryption algorithm (effectively a basic feistel netowrk)

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• Updated Jul 12, 2020
• C

Cryptography coursework in SageMath and Python: classical ciphers, Feistel networks, LFSRs, randomness tests, knapsack encryption, RSA and ElGamal.

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• Updated Oct 3, 2026
• Sage

Complete implementations of encryption and decryption algorithms including Advanced Encryption Standard (AES), Data Encryption Standard (DES), Row Transposition Cipher and Vigenere Cipher.

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• Updated Jul 23, 2017
• Java

Naive implementation of Feistel Cipher using Python

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• Updated Jul 22, 2021
• Jupyter Notebook

128-bit Feistel block cipher — University of Jordan Cryptography project

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• Updated May 19, 2026
• Python

Randomizes Nether portal destination, such that every 256*256 quadrant is linked to another unique random quadrant. This PRNG is reversible, so players can return by going through the same portal.

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• Updated Sep 17, 2025
• Java

IU-8 BMSTU Feistel net

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• Updated Dec 16, 2021
• Python

Feistel Cipher Network Cryptography

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• Updated Mar 1, 2023
• Xojo