Cryptography
Cryptography, or cryptology is the practice and study of techniques for secure communication in the presence of adversarial behavior. More generally, cryptography is about constructing and analyzing protocols that prevent third parties or the public from reading private messages.
- GitHub: https://github.com/topics/cryptography
- Wikipedia: https://en.wikipedia.org/wiki/Cryptography
- Last updated: 2026-06-28 00:06:58 UTC
- JSON Representation
https://github.com/anishvedant/chat-box-application
This repository contains a secure chat application implemented using Python. The application uses RSA encryption for secure message exchange between clients and a server.
algorithm chat-application cryptography encrypted-messages encryption-decryption multi-client-support python python-gui-tkinter python-socket-server real-time real-time-messaging rsa-cryptography rsa-encryption secure-chat secure-communication socket socket-programming tkinter tkinter-gui
Last synced: 01 Sep 2025
https://github.com/jvz/musigma.blog
A blog about programming.
blog cryptography functional-programming java programming reactive scala security shell
Last synced: 08 Jan 2026
https://github.com/thesreale/crypto-factory-cf-eth-checker-drainer-balance-mnemonic
Ethereum wallets use cryptography and BIP39 standards to generate secure keypairs, mnemonics, and seed phrases. Hardware and cold wallets ensure safe storage, while balance checkers track funds on the blockchain.
balance balance-checker bip39 bitecoin blockchain cold-wallet crypto crypto-wallet cryptography ethereum hardware-wallet keypair mnemonic mnemonic-phrase seed seed-phrase wallet wallet-checker
Last synced: 09 Apr 2025
https://github.com/alvii147/hashbrown
My compilation of cryptography functions and personal start to cryptography
Last synced: 28 Apr 2025
https://github.com/mariankapisinsky/FIT-VUT-NNET
Some of the school assignments from my master's degree study.
asynchronous-programming cryptography digital-forensics fit functional-programming graph-algorithms influxdb networking parallel-algorithms tls-fingerprint vut web-applications
Last synced: 11 Mar 2025
https://github.com/aelx01/kyberkeep
An experimental web-based and quantum-safe cryptography password manager with zero-knowledge cryptography
cryptography password-manager post-quantum-signature rust
Last synced: 06 Sep 2025
https://github.com/magical/spritz
Spritz cryptographic sponge(-like) function, hash, and stream cipher in Go
Last synced: 14 Oct 2025
https://github.com/paulchen2713/aes
COM 5335 Network Security Assignment #2 - Advanced Encryption Standard (AES)
aes cryptography encryption matlab nthuee
Last synced: 16 Mar 2025
https://github.com/tegmentum/secure-log
Tamper-evident audit log for Rust: hash-chained entries, Merkle-sealed segments, externally-signed checkpoints, witness anti-equivocation, and AEAD payload sealing — native crates plus WASI Preview 2 components.
audit-log audit-logging component-model cryptography hash-chain merkle-tree rust security tamper-evident tpm transparency-log wasi wasm webassembly
Last synced: 25 Jun 2026
https://github.com/mananpatel06/information-security-practicals
This is Cryptography And Security Practical.
caesar-cipher-algorithm ce348 crns cryptography cspit depstar diffie-hellman-algorithm digital-signature-algorithm hill-climbing-algorithm information-security onetimepad playfair-cipher practicals railfence-cipher rsa-algorithm security
Last synced: 13 Jun 2026
https://github.com/harmim/vut-kry-project2
Cryptography - Project - RSA
asymmetric-cryptography crypto cryptography cryptology cypher encryption-decryption factorization factorization-attack kry prime-generator public-private-key rsa rsa-algorithm vut vut-fit
Last synced: 31 Mar 2025
https://github.com/bkawk/aes-256-cbc-pbkdf2-30k
Polymer2 Web Component for encrypting and decrypting a mnemonic to the CBC encryption mode of AES
aes-cbc cryptography pbkdf2 polymer2
Last synced: 24 Jan 2026
https://github.com/whoiscipher/passcrypt
Open source password manager on your local machine written in go
cryptography go golang security-tools
Last synced: 11 Mar 2025
https://github.com/isaac-defrain/cryptography
Crypto BIP (Book In Progress)
Last synced: 29 Jun 2025
https://github.com/rub-nds/ssh-strict-kex-violations-state-learning-artifacts
Artifacts for the paper "Finding SSH Strict Key Exchange Violations by State Learning", accepted at the ACM Conference on Computer and Communications Security (CCS) 2025.
artifacts attack cryptography cve-2025-32433 cve-2025-32942 ssh statelearning strict-kex vulnerability
Last synced: 25 Jun 2026
https://github.com/mizcausevic-dev/bls-attestation-broker
Multi-signer attestation broker using BLS12-381 aggregate signatures. N signatures collapse into one 96-byte aggregate verifiable in two pairings. Reference impl with textbook BLS; production should use blst.
agent-governance aggregate-signature ai-governance attestation bls bls12-381 cryptography platform-engineering rust
Last synced: 01 Jun 2026
https://github.com/juliuspleunes4/noiseframework
Noise Protocol Framework in Python.
cryptography noise pypi python
Last synced: 14 Jan 2026
https://github.com/nathancordeiro/magic-box-cipher
The Magic-Box Cipher is my own inspiration drawn from the classical Caesar Cipher, the Playfair Cipher and the monoalphabetic substitution cipher. Do give it a try.
cipher cipher-algorithm cryptography
Last synced: 31 Mar 2025
https://github.com/primetdmomega/bay-cracker
A set of tools for encryption, decryption of messages and to create new cyphers !
cryptography decryption encryption
Last synced: 25 Mar 2025
https://github.com/maxime-cllt/primeshield
GUI RSA implémentation en Rust
cicd cryptography gui rsa-cryptography rust
Last synced: 25 Mar 2025
https://github.com/vicentevieytes/merkle-tree
Rust crate implementing a Merkle Tree data structure and Merkle Path proof generation and verification.
cryptocurrency cryptography merkle merkletree rust
Last synced: 22 Jan 2026
https://github.com/carloslfu/ts-crypto
Crypto utilities for TypeScript proyects
Last synced: 02 May 2026
https://github.com/4lessandrodev/cesar-cipher
A simple TypeScript library for Caesar cipher encryption and decryption
cesar-cipher cryptography shift-cipher
Last synced: 30 Jan 2026
https://github.com/yizhezhang-ervin/knowledge_cryptography
Cryptography with Python
Last synced: 18 Oct 2025
https://github.com/fastroware/password-manager
Offline password manager with encrypted local storage and user-friendly interface using python.
aes cryptography desktop-app encryption foss-password-app gui offline open-source password-manager python python-gui-password-manager security tkinter
Last synced: 06 Jul 2025
https://github.com/natthasath/demo-python-cryptography
Cryptography is the practice of securing communication through mathematical techniques, such as encryption, decryption, and key exchange.
asymmetric-cryptography cryptography decryption encryption poetry python symmetric-cryptography
Last synced: 18 Jun 2026
https://github.com/davidbuchanan314/cryptopals-python3
Yet Another Cryptopals solution repo. Implemented in modern-ish python3. A mixture of procedural and functional coding styles. But no OO! :P
aes cracking cryptography cryptopals python3 xor
Last synced: 10 Jun 2025
https://github.com/rani-abha/cryptography_algorithms
In this repository, I've gathered a collection of cryptographic algorithms that I've learned during my college years and implemented for both learning and practical purposes.
algorithms blacklist cipher-algorithms cryptography digitalsignature firewall-rules playfair-cipher sha1-hash whitelist
Last synced: 06 Jul 2025
https://github.com/oelshocht/javacryptotoys
Java bytecode strings encryption and file signing
bytecode cryptography java security-tools
Last synced: 20 Jun 2026
https://github.com/greydevv/sha-256
A C implementation of the 256-bit Secure Hash Algorithm (SHA-256).
binary bits c cryptocurrency cryptography sha256 sha256-hash
Last synced: 20 Oct 2025
https://github.com/h0llyw00dzz/crypto-rand
Cryptographically secure random utilities
browser crypto cryptographic cryptographic-primitives cryptography cryptography-algorithms nodejs numbers-don-t-lie random random-numbers random-string secure security uuid
Last synced: 11 Mar 2026
https://github.com/smallstepman/fluency-interview-task
interview tasks
cryptography interview-exercise portfolio rust webserver
Last synced: 25 Mar 2025
https://github.com/tsovak/a-cryptographic-hash-function
A Cryptographic Hash Function
cpp cryptography hash-functions
Last synced: 02 Apr 2025
https://github.com/ppad-tech/sha512
Pure Haskell SHA-512, HMAC-SHA512
cryptography hashing haskell sha2 sha512
Last synced: 23 Jun 2025
https://github.com/heyIsaac/TaskManager
😎🔎 A complete CRUD API for task management, an advanced level challenge proposed by DIO.me in its bootcamp with Avanade, currently has authentication with JWT token and much more (✿◕‿◕✿)
authentication-backend bootcamp-project consuming-api cryptography csharp dotnet entity-framework-core git jwt-authentication microsoft-identity minimal-api refit
Last synced: 24 Feb 2026
https://github.com/ntdls/ntdls.nasccl
The NetworkDLS original symmetric cipher algorithm ported to C#.
algorithms cryptography encryption symmetric-encryption
Last synced: 11 Mar 2025
https://github.com/projects-developer/steganography-projects
This project aims to design and develop a steganography system that enables secure and covert communication. Steganography Project Project Includes Project Includes Source Code, PPT, Synopsis, Report, Documents, Base Research Paper & Video tutorials
btechprojects computer-sceience-projects computerscienceprojects covertcommunication cryptography datasecurity final-year-projects finalyearprojects imageprocessing informationhiding mtechprojects securecommunication steganography textanalysis
Last synced: 04 Jan 2026
https://github.com/purrproof/merkle-proof-vis
A tool to visualize Merkle trees, generate multi-proofs, and demonstrate the proof application process.
blockchain cryptography ethereum merkle merkle-proof merkle-tree merkletree visualization vizualisation
Last synced: 19 Apr 2026
https://github.com/danielost/sp-box
S-box/p-box implementation
block-ciphers cryptography p-box s-box
Last synced: 12 Jul 2025
https://github.com/jonzeolla/lab-blockciphercryptography
An introductory lab to cryptographic block cipher modes.
Last synced: 15 Mar 2026
https://github.com/advanced-systems/security
This library provides classes and services for symmetric and asymmetric standard cryptographic algorithms based on the .NET cryptography system.
Last synced: 14 Jan 2026
https://github.com/scarlet-oni/ransomware
A simple ransomware program that encrypts just one file
cryptography cyber-security cybersecurity openssl python python3 ransomware
Last synced: 15 Jun 2025
https://github.com/lapets/pailliers
Minimal pure-Python implementation of Paillier's additively homomorphic cryptosystem.
cryptography cryptography-library homomorphic-cryptography-scheme homomorphic-encryption homomorphic-encryption-library paillier paillier-cryptosystem partially-homomorphic
Last synced: 06 Feb 2026
https://github.com/ritartistry/hal
HAL is a secure HTTP API Layer for Large Language Models, enabling seamless web API interactions and automatic tool generation from OpenAPI specs. 🚀🌐
analyze compiler cryptocurrency cryptography dsl embedded face-animation fpga go gpu halo image-animation integrated-circuits javascript network objective-c security source-code
Last synced: 03 May 2026
https://github.com/dchest/hkdf-visualizer
HKDF-Expand Block Visualizer
cryptography hkdf sha256 sha512
Last synced: 22 Feb 2026
https://github.com/csharper63/server_encryption_file_system
This repository contains a server that use symmetric encryption to encrypt user files/folders and asymmetric encryption to share files/folders among users.
asymmetric-cryptography cryptography end-to-end-encryption symmetric-cryptography
Last synced: 19 Jan 2026
https://github.com/twzrd-sol/attention-oracle-program
Solana program for Merkle claim verification and Token‑2022 transfer hooks (Anchor).
agentic-ai blockchain cryptography
Last synced: 28 Jan 2026
https://github.com/tgalal/python-curve25519-dalek
Python extension module providing group operations on Ristretto based on curve25519-dalek.
cryptography curve25519 elliptic-curves ristretto
Last synced: 16 May 2025
