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: 2026-06-29 00:07:02 UTC
- JSON Representation
https://github.com/elamani-drawing/morseus
Morseus est une bibliothèque Rust permettant d'encoder et de décoder le texte en code Morse. Elle offre également la possibilité de jouer le code Morse en émettant des signaux sonores à l'aide du dispositif audio par défaut de votre système, ainsi que d'exporter le code Morse en fichiers audio WAV.
audio compression crates-io cryptography encoding morse morse-code rust rust-lang rustlang
Last synced: 02 Apr 2026
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/samuel-lucas6/hkdf.net
A .NET implementation of HKDF, with support for SHA256, SHA384, and SHA512.
cryptography hash hkdf hmac hmac-sha256 hmac-sha384 hmac-sha512 kdf key-derivation key-derivation-function key-exchange key-exchange-protocol sha256 sha384 sha512
Last synced: 27 Mar 2025
https://github.com/epicreach/tkey-web-authentication
Secure Go-based proxy server using TKey hardware for passwordless website authentication.
authentication cryptography daemon go proxy-server security-tools
Last synced: 04 Mar 2026
https://github.com/alphadevking/keyvault
Securely generate, store, and manage your passwords and passkeys with ease
bcryptjs cryptography security sync typescript
Last synced: 01 Jul 2025
https://github.com/platform-inf/go-ratchet
🛡️ Double ratchet algorithm implementation in Golang.
cryptography double-ratchet golang
Last synced: 31 Mar 2025
https://github.com/mcp-tool-shop-org/ledger-suite
Unified monorepo for cryptographic provenance ledgers — ClaimLedger and CreatorLedger
append-only cryptography digital-signatures dotnet ed25519 ledger monorepo open-source provenance typescript
Last synced: 01 Apr 2026
https://github.com/a-s-russo/eleventh-hour-mystery
Decipher the paragraph of ciphertext in 'The Eleventh Hour: A Curious Mystery' by Graeme Base at the end of the book using a Caesar cipher
Last synced: 29 May 2026
https://github.com/advaith7joshi/project-nexus
Simplified demonstration of blockchain workflow
blockchain blockchain-technology crypto cryptocurrency cryptography finance
Last synced: 12 Jun 2025
https://github.com/lazula/cryptopals
A collection of solutions for the challenges at cryptopals.com in C89
Last synced: 08 Jul 2025
https://github.com/badgerbloke/crypto-exchange
The fastest and most secure crypto exchange platform.
crypto cryptocurrency cryptocurrency-exchanges cryptography ethereum nextjs reactjs single-page-app smart-contracts
Last synced: 16 Mar 2025
https://github.com/farfarfun/funsecret
加密和安全工具包 - 提供加密、解密和安全相关功能
cryptography encryption farfarfun python secret security
Last synced: 05 Mar 2026
https://github.com/osennij-morok/korobu
A tool for encryption and decryption written in Rust
Last synced: 10 Sep 2025
https://github.com/xdv/divvy-wallet
Divvy Wallet Generator
cryptocurrency cryptography divvy secret test-vectors xdv
Last synced: 16 Jan 2026
https://github.com/realabbas/offline-blockchain-transaction-signing-private-wallet
A private offline wallet for signing incoming transaction from web interface
cryptography offline public-private-key qrcode signing transaction wallet
Last synced: 29 May 2026
https://github.com/paolino/haskell-mts
Compact Sparse Merkle Tree implementation in Haskell with persistent storage and Merkle proofs
blockchain cryptography data-structures haskell merkle-tree rocksdb
Last synced: 05 Mar 2026
https://github.com/acifani/cryptopals-challenges
🔒 Personal take on the cryptopals crypto challenges, in Go
cryptography cryptopals-challenges go golang
Last synced: 14 Feb 2026
https://github.com/thenareshofficial/password-manager
Password Manger in Python
cli-tool cmd cryptography cybersecurity-tool docker encryption-decryption github linux master-password password password-manager password-manager-cli pbkdf2 pip python python-docker python3 security-tools strong-password-generator tools
Last synced: 12 Apr 2026
https://github.com/ite-2022-pwr/sem4-oiak-proj-mb-ak
Organizacja i architektura komputerów - projekt
assembler assembly cryptography kyber-crystal
Last synced: 28 Mar 2025
https://github.com/t-bast/echalotte
Research on various onion encryption schemes.
cryptography onion onion-routing
Last synced: 12 May 2026
https://github.com/angeldollface/doll-cipher
A Rustacean implementation of an encryption algorithm of my own design. :lock: :dolls:
aes-encryption cryptography rust-lang rust-library
Last synced: 29 May 2026
https://github.com/moosesue/gcd
Standard GCD algorithm in Python and Rust
cryptography cryptography-algorithms gcd number-theory python rust rust-lang
Last synced: 30 Apr 2026
https://github.com/salrashid123/ocicrypt-tpm-keyprovider
OCICrypt provider for Trusted Platform Modules (TPM)
cncf containers cryptography encryption oci trusted-platform-module
Last synced: 16 Mar 2025
https://github.com/viveksyngh/merkletree
Merkle hash tree implementation in golang
cryptography golang merkle-proof merkle-tree
Last synced: 12 May 2026
https://github.com/daisvke/dcrypt
dcrypt is a file encryption/decryption tool that adds a custom header to encrypted files, storing essential metadata for decryption and management of the encrypted content.
aes-128-cbc c cryptography encryption-decryption keygen
Last synced: 25 Mar 2025
https://github.com/gabrielmajeri/crypto-data-structures
Data structures in Rust for cryptocurrencies and blockchain-related technologies
blockchain cryptocurrency cryptography merkle-tree
Last synced: 08 Apr 2025
https://github.com/gabrielmajeri/pp-project
Procedural programming project for winter 2018 course
c cryptography pattern-matching
Last synced: 08 Apr 2025
https://github.com/nuwax-io/nuwault-web
Advanced keyword-based password generator with client-side security, privacy focus and PWA support
client-side cryptography deterministic hashing offline password-generator password-strength privacy-first pwa security web-crypto
Last synced: 03 Jun 2026
https://github.com/waridrox/password-manager
Encrypted password manager to store website passwords.
cryptography password-manager reactjs
Last synced: 17 Apr 2026
https://github.com/mokkunsuzuki-code/stage356
Stage356: Runtime Verification and Fail-Closed Execution Gate with Stage355 integrity binding, runtime decision enforcement, CI context detection, and PQC intent-only protection.
audit ci-cd cryptography cybersecurity evidence execution-gate fail-closed github-actions hash-chain integrity key-revocation key-status ml-dsa pqc qsp runtime-verification signature-verification supply-chain-security trust verification
Last synced: 23 Jun 2026
https://github.com/hvalfangst/rsa
RSA made from scratch using the underlying mathematical concepts for sake of demonstration
cryptography github-actions python rsa
Last synced: 17 Apr 2026
https://github.com/thibmeu/rfc9500
Public Key Cryptography Test Keys from RFC 9500
Last synced: 17 Apr 2026
https://github.com/akagi1/online-bcrypt-generator
Yet another online bcrypt generator.
bcrypt cryptography encryption generator javascript webpack
Last synced: 17 Apr 2026
https://github.com/tigeryant/cryptopals-challenges
Solutions to the cryptopals cryptography challenges
coding-challenges cplusplus cryptography cryptopals
Last synced: 16 Jun 2026
https://github.com/simonmasson/efficient-glv-curves-generation
Generation of efficient four-dimensional GLV curves with high security (256-bit)
cryptography curves elliptic glv sage
Last synced: 11 Jun 2025
https://github.com/hugoxox3/bitkeygen
BitKeyGen: A Python tool to generate Bitcoin private keys, WIFs, and addresses. Perfect for developers and crypto enthusiasts! Save keys to wallet.json securely. 🚀🔑 #Bitcoin #Crypto
bitcoin bitcoin-hacks bitcoin-key-generation bitcoin-wallet cryptocurrency cryptography cryptography-and-security
Last synced: 17 Apr 2026
https://github.com/vasilievsv/hw.pki-on-box
Educational PKI server on Radxa Zero (Linux) + STM32H750 TRNG via USB HID. SELinux + eBPF isolation. Python daemon. ISO 26262 ASIL A (educational).
buildroot cryptography ebpf embedded-linux iso26262 pki radxa selinux-policy-lang stm32 trng
Last synced: 12 Apr 2026
https://github.com/yawning/tuplehash
NIST SP 800-185 TupleHash (mirror)
cryptography cryptography-algorithms go golang sha3
Last synced: 29 May 2026
https://github.com/shaina-gh/dss
Java implementation of the Digital Signature Standard (DSS) for message integrity and authenticity verification.
cryptography cryptography-algorithms digital-signature-algorithm digital-signature-authentication dss java signature-verification
Last synced: 22 Apr 2025
https://github.com/forgesworn/shamir-core
GF(256) Shamir's Secret Sharing — split and reconstruct secrets with threshold schemes
cryptography gf256 key-splitting secret-sharing shamir threshold typescript
Last synced: 04 Apr 2026
https://github.com/albovo/ctf-writeups
Here you can find some of the writeups of the ctfs I've played so far.
cryptography ctf-writeups network-security pwn python reverse-engineering scripting web-security
Last synced: 17 Apr 2026
https://github.com/ilyakotsar/imagecrypt
Image encryption with a password using rail fence cipher
cryptography encryption image-encryption rail-fence-cipher
Last synced: 09 Aug 2025
https://github.com/karpeleslab/purecrypto
A pure-Rust, no_std cryptography toolkit: constant-time primitives, classical & post-quantum public-key, X.509, and the TLS/DTLS/QUIC stack — no foreign code, no C dependencies.
constant-time crypto cryptography no-std post-quantum-cryptography pure-rust rust tls x509
Last synced: 04 Jun 2026
https://github.com/fzed51/spicy-mash
Classe de cryptage et décryptage simplifiée se basant sur OpenSSL
cryptography openssl php simple
Last synced: 14 Jan 2026
https://github.com/sovereignbase/cryptosuite
JS/TS runtime-agnostic, quantum-safe, and agile cryptography toolkit with a declarative API for cipher messaging, message authentication, digital signatures, key agreement, and identifiers.
browser bun bytecodec crypto cryptography decryption deno encryption hmac jwk node opaque-identifiers signing sovereignbase typescript verification webcrypto
Last synced: 17 Apr 2026
https://github.com/akshdzn/encore
Encore is a web based tool for obfuscating or scrambling text using a variety of methods. Useful for scavenger hunts, easter eggs, or just fun.
cipher cryptography css html svelte tools vite
Last synced: 18 Apr 2026
https://github.com/roryeckel/decrypto
The automatic cryptography challenge solver & basic framework. Created August 2017.
cipher-crack cryptography ctf-tools solver
Last synced: 04 Apr 2026
https://github.com/juanfkurucz/proyecto-seguridad
Subject "Seguridad" (Security) from Universidad Catolica del Uruguay
cryptography hashing python security
Last synced: 24 Mar 2025
https://github.com/ilyakotsar/audiocrypt
Audio encryption with a password using rail fence cipher
audio-encryption cryptography encryption rail-fence-cipher
Last synced: 18 Mar 2025
https://github.com/ben-venture/sui-go-sdk
Go language SDK for @MystenLabs Sui
block block-vision cryptography go go-lang mainnet sdk signer sui sui-blockchain testnet transaction vision zk-login zk-sync zklogin
Last synced: 03 Jul 2025
https://github.com/kristinjeanna/crypto
Provides a variety of additional crypto packages for Go.
crypto cryptography go golang salted-hash ssha
Last synced: 05 Apr 2026
https://github.com/kimmy665/cores
🚀 Build modern admin panels easily with CoreS, a responsive template using React, TypeScript, and Tailwind CSS. Perfect for streamlined web applications.
ahb-lite asic-design asp-net-core audio axi4 bitcoin carthage cocoapods coredata cryptocurrency cryptography open-isa open-source-hardware riscv rtl sram usb western-digital
Last synced: 18 Apr 2026
https://github.com/dexcompiler/curves
Elliptic curve operations over finite fields
cryptography csharp elliptic-curve-cryptography finite-fields high-performance prime-numbers
Last synced: 04 Jun 2026
https://github.com/dssgabriel/PRESENT24-attack
Blazing fast MITM attack on a 24 bits implementation of the PRESENT block cipher algorithm.
blockcipher c cryptography maninthemiddleattack maqao optimization
Last synced: 31 Mar 2025
https://github.com/rcmilan/ex-cryptographyapp
Implementando Criptografia em Runtime
cryptography dotnet intermediate-code-generation runtime typeconverter
Last synced: 19 Apr 2026
https://github.com/vallshmeleff/radiorandgentwo
A mock-up of a Java application that uses an Internet radio digital stream to encrypt SMS messages with Vernam's code. Works
Last synced: 23 Jun 2026
https://github.com/thearchitector/givemeaprivatekey-com
Hassle-free key pairs NOW
browser crypto cryptography free javascript private-key public-key tools website
Last synced: 04 Jun 2026
https://github.com/nir3x/cryptorand.cpp
CryptoRand.cpp - Random Key Generation using Cryptographic Techniques
algorithm algorithms c-plus-plus cpp cryptography encryption entropy random random-number-generation security
Last synced: 04 Jun 2026
https://github.com/demining/an-attempt-to-predict-the-behavior-of-the-properties-of-the-secp256k1-elliptic-curve
An attempt to predict the behavior of the properties of the secp256k1 Elliptic Curve: Cryptography and cryptocurrency related parameters secp256k1 reveals several vulnerabilities and potential threats:
ai bitcoin bitcoin-wallet btc cryptocurrency cryptography cryptography-algorithms ecc elliptic-curve elliptic-curve-cryptography elliptic-curves quantum-computing secp256k1 secp256k1-ecdsa
Last synced: 20 Apr 2026
https://github.com/artainmo/ft_ssl
42 school project. Recoding the MD5 and SHA-256 cryptographic hashing algorithms in C.
42shcool algorithm c cryptography cybersecurity
Last synced: 16 Mar 2025
https://github.com/zsoulaimane/blockchain-road
Starting Road
basic bitcoin blockchain cryptography ethereum fullstack fundamentals python roadmap sha256
Last synced: 20 Apr 2026
https://github.com/karthik558/rust-crypt
A lightweight yet powerful file encryption utility implemented in Rust. Securely protect your sensitive files with AES-256-GCM encryption and Argon2 password-based key derivation.
cli-tool cross-platform cryptography encryption-decryption password-protection rust
Last synced: 05 Jun 2026
https://github.com/t-bast/macaroons
Macaroons are tastier cookies (and french!)
Last synced: 14 May 2026
https://github.com/virgilsecurity/demo-e2ee-android
A simple Android application that demonstrates how the end-to-end encryption (E2EE) works.
android cryptography demo demo-app encryption end-to-end-encryption key-management public-key-cryptography
Last synced: 21 Apr 2026
https://github.com/nuraj250/lockbox-secure-password-manager
LockBox is a lightweight yet powerful password manager built with Python. It encrypts and securely stores your passwords, providing an intuitive CLI and optional GUI for easy access. Say goodbye to forgotten passwords and hello to secure automation! 🔒🚀
authentication automation cryptography cybersecurity encryption lockbox password-manager pyqt5 python secure-storage sqlite
Last synced: 21 Apr 2026
https://github.com/bch-team-pro/bch-wallet
Bitcoin Cash (BCH) – securely send, receive, and store BCH with full control over your private keys. Works on Windows, Linux, and macOS, with support for hardware wallets, QR codes, and transaction tracking. No registration required—ideal for desktop-focused users.
bch bch-coin bch-electrum-wallet bch-wallet bitcoin-cash bitcoin-wallet crypto crypto-wallet cryptography electrum electrum-bitcoin-cash electrum-cash electum-bch non-custodial web3
Last synced: 21 Apr 2026
https://github.com/uofsc-fall-2022-math-587-001/homework8
A bit about distribution of primes and Pollard's p-1 test
cryptography go latex math pollard-p-1 prime-numbers
Last synced: 29 Apr 2026
https://github.com/markuszoppelt/aes_argon2_trezor
Short demo on how to use AES with Argon2id KDF and Trezor
aes argon2 cryptography kdf trezor
Last synced: 21 Apr 2026
https://github.com/jonath-z/go-vigenere-cipher
Vigenere Cipher algorithm written in go
cipher-algorithms cryptography go golang vigenere-cipher-algorithm
Last synced: 01 Apr 2025
https://github.com/umstek/classiccryptolib
Classical Cryptography in Modern Code
cipher cryptography encryption
Last synced: 22 Apr 2026
https://github.com/yashkarthik/hash_crakking
Hash texts entered.
cryptography hashing python python-3
Last synced: 10 Mar 2026
https://github.com/jamesclarke7283/onetimepadui
Mirror of OneTimePadUI Project from my gitlab, please go there instead for Issues/Pull Requests, etc. Patches(Aka Commits) can also be submitted Via email or any platform listed here: https://www.james-clarke.ynh.fr/contact: .
cryptography desktop-app desktop-application encryption gtk gtk3 gui linux-app linux-application macos-app macos-application onetimepad privacy python python310 security ui user-friendly windows-app windows-application
Last synced: 11 Apr 2026
https://github.com/quantachain/quanta-android-core
Core Android library powering QuantaChain mobile applications, built in Rust for high-performance cryptographic operations and secure transaction handling.
Last synced: 05 Jun 2026
https://github.com/aarontsang/secure-auth-threat-detection
Backend service to maintain security.
bcrypt cryptography docker jwt-authentication postgresql postman reactjs redis salting
Last synced: 22 Apr 2026
https://github.com/ahmatfauzy/pengaduan-app
cryptography dekstop-app dotenv-java generic gson i18n java jbcrypt mongodb serialization thread
Last synced: 14 May 2026
https://github.com/toniomacaronio/keccak-rust
Keccak implementation in Rust
crypto cryptography keccak rust sha3
Last synced: 24 Mar 2025
https://github.com/silent0wings/hybrid-caesar-cipher-encryption-system
EncryptionThe Hybrid Caesar Cipher Encryption System is a Java-based encryption tool that extends the classic Caesar cipher by incorporating multiple scrambling, shuffling, and shifting algorithms. This hybrid approach enhances the security of the encryption process.
caesar-cipher caesarcipher cipher cryptography cybersecurity data-protection data-security encryption hybrid-encryption information-security java security security-algorithm symmetric-encryption
Last synced: 12 Jun 2026
https://github.com/quantumcoinproject/circl
Hybrid Post Quantum Cryptography Library in GO
blockchain cryptography hybrid-pqc pqc quantumcoin
Last synced: 05 Jun 2026
https://github.com/notetiene/ssh-hardening
🛡️ Ansible Role — SSH Hardening
algorithms ansible cryptography devops hardening provisioning ssh
Last synced: 28 Jun 2026
https://github.com/shubhamv108/crypto-utils
A simple crypto util in Java.
aes crypto-utils cryptography cryptography-utilities hashing hotp otp rsa totp
Last synced: 24 Mar 2025
https://github.com/ashu11-a/ashcrypt
Files protected with encryption
aes aes-256 aes-cipher aes-encryption aes-gcm asynchronous-crypto buffer crypto crypto-library crypto-tools cryptography encryption gcm node-aes node-crypto nodejs pbkdf2 stream-encryption typescript
Last synced: 24 Apr 2026
https://github.com/redx94/quantumblockchainautomation
A revolutionary initiative combining Quantum Computing and Blockchain Technology to establish a secure, decentralized system for quantum-powered data integrity. This project pioneers the fusion of advanced quantum randomness with blockchain's immutability, ensuring unmatched reliability and security for distributed data processes
blockchain blockchain-immutability cryptography data-integrity decentralization distributed-systems ethereum flask-dashboard ganache ibm-quantum-experience qiskit quantum quantum-blockchain-fusion quantum-randomness quantum-security quatum-cryptography smart-contracts zeromq
Last synced: 24 Apr 2026
https://github.com/en1gm4-exe/tryhackme
Write-ups and Walkthroughs for TryHackMe challenges and labs — covering enumeration, exploitation, privilege escalation, and more.
blue-teaming cryptography forensics hands-on-lab penetration-testing reverse-engineering shell
Last synced: 24 Apr 2026
https://github.com/swamikannan/revisiting-python
Building projects based on libraries such as Turtle and tkinter to brush up on non-ML skills
coffee-machine cryptography customtkinter etch-a-sketch password password-manager-app password-manager-ui python3 tkinter-gui tkinter-python turtle
Last synced: 06 Jun 2026
https://github.com/losthopes/secured-accounts-lab
Lab for Security of programs and Data course
Last synced: 14 Mar 2025
https://github.com/paulopacitti/ascon-v
5️⃣ Ascon lightweight cryptographic algorithm implementation for improved performance on riscv64
allwinner allwinner-d1 ascon cryptography lightweight-cryptography risc-v riscv64
Last synced: 25 Apr 2026
https://github.com/jurshsmith/vaultstream
High-Performance Distributed Digital Signature System
cryptography ecdsa-key-pair golang jetstream nats-streaming postgresql
Last synced: 25 Apr 2026
https://github.com/hopex-development/cipher
Provides encryption and decryption (not for everyone, see the documentation) of strings using MD5, SHA1, SHA256, Base 16, Base64, DES, AES algorithms.
aes cryptography dotnetframework encryption
Last synced: 25 Apr 2026
https://github.com/islam-hady9/image-encryption-and-steganography-with-des_and_lsb
An image encryption and steganography project implementing DES encryption and LSB techniques for secure image embedding and transmission.
cryptography decryption des encryption image-processing jupyter-notebook lsb python steganography
Last synced: 25 Apr 2026
https://github.com/midnight-wonderer/xoodyak-rb
A blazing fast Ruby wrapper for the Xoodyak cryptographic scheme. Supports hashing and AEAD encryption.
aead cipher cryptography digest gem hash lightweight-cryptography ruby sponge-construction xoodyak
Last synced: 28 May 2026
https://github.com/samarjit98/security-lab
Some popular cryptographic algorithms.
c cpp cryptography des-encryption encryption-decryption gmp number-theory
Last synced: 25 Apr 2026
https://github.com/imnotannamaria/python-flask-auth
Flask User Authentication and CRUD API
cryptography flask pymysql python
Last synced: 25 Apr 2026
https://github.com/rudolphreti/cicla
Cicla is a free application for generating ciphers that cannot be cracked without the key. The app enables both encryption and decryption of messages using a specially prepared key.
cryptography nodejs typescript
Last synced: 25 Apr 2026
https://github.com/ar-io/ar-io-mlflow
MLflow plugin for verifiable ML provenance, anchored to ar.io
ar-io arweave cryptography mlflow mlops provenance verification
Last synced: 13 Jun 2026
https://github.com/masato-ro/kitana_cryptool
A versatile, cross-platform cryptographic utility built with C++, FLTK, and OpenSSL. Features include AES encryption, RSA key generation, password generation, and hash matrix verification.
aes-encryption cpp cross-platform cryptography fltk hashing openssl password-generator rsa-keys security
Last synced: 14 Jun 2026
https://github.com/fstrahij/cryptography
Project on Faculty of Organization and Informatics in Varaždin on course Operationg systems 2.
aes cryptography python sha256
Last synced: 06 Jun 2026
