differential-cryptanalysis

Automated cryptanalysis of substitution permutation network cipher

Algebraic + neural differential cryptanalysis of reduced-round KeeLoq (2026 modernization of a 2015 SAT-only effort). Full 64-bit key recovery in <1s at 64 rounds via XOR-aware CryptoMiniSat; Gohr-style PyTorch ResNet distinguisher hybrid on CUDA.

This is a library that tries to break SPN ciphers in an fully automatic manner.

my solutions for the HW in the symmetric cipher breaking course, all the HW are exercises from the https://cryptanex.hideinplainsight.io/ website

My bachelor thesis

The implementation of "NeuralCPA: A Deep Learning Perspective on Chosen-Plaintext Attacks".

S-box analysis // DES differential cryptoanalysis

Учебно-исследовательский блочный шифр: блок 96 бит, ключ 256 бит, сеть Фейстеля, ARX. Реализации на Python и C, 8 тестовых наборов, 9 скриптов криптоанализа. Независимо не проверялся — не для реальных данных.

A Differential Cryptanalysis attack on a Toy Cipher

SEARCH: Symmetric Encryption Algorithm Research

Comparative benchmark of SMT solver effectiveness in cryptographic hash collision discovery for SHA-2 algorithms.

Experimental cryptographic hash/XOF research project combining finite-field arithmetic, Feistel rounds, a sponge construction, and Garside braid normalization. Includes a C reference implementation, reproducible tests, and cryptanalysis reports. Not for production use.

ACNS 2023 - Meet-in-the-Filter and Dynamic Counting with Applications to Speck

Implementation and a 6-round differential attack on the DES block cipher algorithm.

Reproducibility package for auditable neural differential distinguishers on reduced-round lightweight-style block ciphers.

SAC 2022 - Advancing the Meet-in-the-Filter Technique: Applications to CHAM and KATAN

Assignments Completed during CSE653:Topics in Cryptanalysis Course in IIITD during Winter 2025 Semester. Professor: Ravi Anand

Differential cryptanalysis of FEAL-4

Browser-based demo of differential cryptanalysis — the attack co-invented by Eli Biham and Adi Shamir (Israel, 1990) that broke DES. Live attack on a toy SPN cipher, DDT visualization, and the story of how Biham used his own attack to design Serpent.

A neural network-based encryption system built with TensorFlow and Keras. It securely transforms plaintext into ciphertext and back, providing strong protection against cryptanalysis and adversarial attacks. Scalable for real-time communication and cloud storage.