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/humanjavaenterprises/nostr-nsec-seedphrase
The nostr-nsec-seedphrase repository offers a TypeScript library that converts Nostr nsec keys into mnemonic seed phrases, enhancing the readability and management of keys within Nostr applications. This approach mirrors Bitcoin's use of seed phrases, emphasizing the importance of secure storage and careful handling of these keys.
bitcoin cryptography decentralized-protocols digital-signatures key-management mnemonic-seed-phrases nostr public-key-infrastructure security
Last synced: 31 Aug 2025
https://github.com/nilsmt/periodic-encryption
Homemade package to encrypt text using the periodical table of elements and vigenere cipher
chemical-elements cryptography encryption-decryption periodic-table-of-elements python selfmade vigenere-cipher
Last synced: 19 Feb 2026
https://github.com/lemon-mint/highcrypt
A crypto stack built with a proven cryptographic algorithm
algorithm crypto cryptography decryption encrypt encryption go
Last synced: 20 May 2026
https://github.com/mehrajlatifli/lm-lock-in-mvvm
Example for Thread, Thread synchronization and Cryptography
binding criticalsection cryptography decryption encryption encryption-decryption inotifypropertychanged internal-thread lock mvvm synchronization wpf xaml
Last synced: 20 May 2026
https://github.com/john-lin/crypt
A simple CLI tool for Encrypt/Decrypt files.
Last synced: 18 May 2026
https://github.com/abennett/cryptlog
A proof of concept for an AES-CBC-based, limited-read log appender.
Last synced: 03 Apr 2025
https://github.com/razenpok/razensoft.xxtea
A simple and fast zero-dependency cryptography cypher for Unity
cryptography csharp cypher unity unity3d xxtea
Last synced: 15 May 2026
https://github.com/jscarle/cryptoextensions.net
Useful Cryptography Extensions
crypto cryptography csharp dotnet
Last synced: 16 Aug 2025
https://github.com/denselance/hight-python
HIGHT block cipher implementation in Python3 based on original paper by Hong et al. Includes the encryption and decryption functions for HIGHT.
cipher cryptography hight kisa python3
Last synced: 31 Dec 2025
https://github.com/antonio-hickey/relay
Secure communication utilizing a Proof of Identity signature and encrypted messages.
Last synced: 28 Jul 2025
https://github.com/p-sira/hycrypt
Stateless-overwrite hybrid cryptosystem for Python
cryptography hybrid-cryptosystem python
Last synced: 06 Mar 2026
https://github.com/daflh/deriving
Derives address and private key from mnemonic phrase for Bitcoin and other altcoins
bip bip32 bip39 bitcoin cryptocurrency cryptography hacktoberfest mnemonic
Last synced: 19 May 2026
https://github.com/CorvidLabs/ts-algochat
🔐 TypeScript implementation of AlgoChat - Encrypted messaging on Algorand
algorand blockchain chacha20-poly1305 cryptography encryption messaging typescript x25519
Last synced: 08 Mar 2026
https://github.com/volkansah/encode-and-decode-php8
This guide provides examples of how to encrypt and decrypt files using PHP's Sodium extension, which offers modern cryptographic functions.
crypto cryptography decryption encryption php php8 security sodium
Last synced: 18 Aug 2025
https://github.com/intricate/paseto-haskell
A Haskell implementation of PASETO (Platform-Agnostic Security Tokens).
cryptography haskell jwt paseto security token
Last synced: 10 Apr 2025
https://github.com/varun-doshi/erasure-coding
Rust Implementation of Erasure Codes
Last synced: 29 Mar 2025
https://github.com/jordanwelsman/jutils
A Python package of useful tools and utilities.
averages calculators converters cryptography datastructures exceptions formatting language logic pipelining python sorters timers utilities
Last synced: 22 May 2026
https://github.com/heliomarpm/cryptoh
A clean and easy-to-use cryptography utility library for Node.js, built on top of the native crypto module.
crypto crypto-helper cryptography cryptography-algorithms cryptography-library cryptoh helpers helpers-library md5 node-library security sha1 sha256 sha512 utils-library
Last synced: 28 Jul 2025
https://github.com/deadblackclover/wots-rs
Implementation of the Winternitz One-time Signature Scheme made using Rust
crypto cryptography one-time-signatures rust wots
Last synced: 15 Jan 2026
https://github.com/tom474/cryptography_comparative_analysis
[RMIT 2024C] COSC2539 - Security in Computing and IT - Analytical Security Report
asymmetric cryptography hashing security symmetric
Last synced: 04 Mar 2025
https://github.com/tom474/learn_security_rmit
[RMIT 2024C] COSC2539 - Security in Computing and IT - Learning Resources
cryptography security security-attacks
Last synced: 04 Mar 2025
https://github.com/dhouib-mohamed/secure-network-authentication
Secure Network Authentication project focuses on establishing robust authentication and network services using OpenLDAP, SSH, Apache, OpenVPN, DNS, and Kerberos.
apache authentication cryptography dns infrastructure kerberos network-management network-security openldap openvpn ssh
Last synced: 18 May 2026
https://github.com/travishorn/diceware-js
Cryptographically-secure electronic implementation of the Diceware Passphrase method in JavaScript.
crypto cryptography diceware passphrase password security
Last synced: 27 Mar 2025
https://github.com/onlyf0ur/c-hashcracker
A simple and hyperfast HashCracker written in C.
Last synced: 17 Mar 2025
https://github.com/alphaolomi/cryptography-algorithms
A collection of curated cryptography algorithms
algorithms algorithms-and-data-structures cryptography cryptography-algorithms hacktoberfest python rsa-cryptography wiener-attack
Last synced: 18 Jun 2025
https://github.com/azeemmirza/fortuna
Fortuna is a PRNG; it generates cryptographically secure pseudorandom numbers on a computer. It can also be used as a real random number generator, accepting random inputs from analog random sources. Designed by Niels Ferguson and Bruce Schneier.
cryptography psuedo-random random-number-generators
Last synced: 19 Mar 2026
https://github.com/dannweeeee/zk-encode
Coding Bootcamp about ZK Proof Theory and Building
cairo cryptography modular-arithmetic rust zk-proofs zk-snarks
Last synced: 06 Sep 2025
https://github.com/nthnn/xbin25
Go package designed for secure data serialization, combining state-of-the-art encryption, digital signatures, and multi-layer compression ensuring confidentiality, integrity, and authenticity.
cryptography cryptography-algorithms encryption encryption-decryption golang golang-library golang-package
Last synced: 17 Aug 2025
https://github.com/crownedgrouse/preach
[WIP] Phi base Random Encoder Aimed for Cryptography Hardening
Last synced: 06 Apr 2025
https://github.com/presidentbeef/ruby_crypto_examples
Examples of cryptography operations using Ruby's standard library.
cryptography elliptic-curve-cryptography openssl public-key-cryptography public-key-encryption rsa-cryptography ruby
Last synced: 11 Jul 2025
https://github.com/20101301-alina-hasan/multiple-cryptographic-functionalities
This Python application integrates various cryptographic functionalities into a single interactive program. Users can perform operations such as encryption, decryption, hashing, digital signature generation/verification, and Message Authentication Code (MAC) generation.
cryptography digital-signature-algorithm encryption-decryption hashing jupyter-notebook message-authentication-code python
Last synced: 18 May 2026
https://github.com/sharif-minhaz/one-time_pad_algo-otm
One Time Pad algorithm (OTP) is a symmetric key type algorithm which means that the key used to perform encryption and decryption is the same key
Last synced: 23 Jun 2025
https://github.com/fardinkamal62/pixenc
Encrypt image by manipulating pixels
cryptography encryption go golang image manipulation pixels python security
Last synced: 21 Apr 2026
https://github.com/christoffercarlsson/stedy
An easy-to-use cryptography library for JavaScript
aes-gcm-encryption crypto cryptography curve25519 ed25519 elliptic-curves hash hkdf hmac pbkdf2 signature verification x25519
Last synced: 13 Sep 2025
https://github.com/hsbc/encryption-helper-python
A Python CLI application for generating RSA public and private key pairs.
automation cryptography data-protection devops-tools encryption hsbc key-generation key-management open-source poetry-python public-key python python-rsa python-rsa-key-pairs-public-key-private-key rsa security
Last synced: 14 Jul 2025
https://github.com/arthursudbrackibarra/t2-seguranca-de-sistemas
Trabalho 2 de Segurança de Sistemas.
cryptography java rsa security
Last synced: 22 Mar 2025
https://github.com/roydevashish/hybrid-technique-for-image-encryption
This project implements a hybrid image encryption technique by combining asymmetric and symmetric encryption methods. It utilizes the ECC for asymmetric encryption and ChaCha20 stream cipher for symmetric encryption to achieve robust and secure image protection.
asymmetric-cryptography chacha20 cryptography ecc elliptic-curves-cryptography encryption hybrid image image-encryption image-protection python3 stream-cipher symmetric-cryptography uv
Last synced: 13 Jun 2026
https://github.com/jamestaylr/aes
Implementation of AES and associated cryptographic helper functions in Crystal
aes course-work cryptography crystal
Last synced: 24 May 2026
https://github.com/tuokri/UnrealScript-FCrypto
Pure UnrealScript SSL/TLS implementation and cryptography utilities based on BearSSL. Work in progress.
bearssl block-cipher cryptography decryption ecdh ecdhe encryption hkdf hmac https-client sha-1 udk ue3 unreal-engine-3 unrealscript xxtea
Last synced: 11 Mar 2025
https://github.com/velipso/staticvault
Encrypt, host, and share files on a static website
browser-app cli-tool cryptography encryption file-encryption frontend javascript nodejs privacy secure-storage self-hosted static-site vault web-security zero-knowledge
Last synced: 22 Jul 2025
https://github.com/moul/otp
One-Time Pad utility
conference cryptography one-time-pad otp xor
Last synced: 07 May 2025
https://github.com/shgysk8zer0/jscrypt
Cryptographic modules implemented in JavaScript (I.E. SubtleCrypto API)
aes aes256 crypto cryptography ecmascript2015 es6 es6-modules javascript jscrypt jwk nodejs npm phpcrypt rsa spki subtlecrypto subtlecrypto-api webcryptoapi
Last synced: 08 May 2026
https://github.com/liblor/applied_cryptography_ethz
Applied Cryptography Lab @ ETHZ
applied-cryptography cryptography ethz lab
Last synced: 12 Jun 2025
https://github.com/azuchi/frostrb
Ruby implementations of Two-Round Threshold Schnorr Signatures with FROST.
bitcoin cryptography elliptic-curve frost schnorr schnorr-signatures taproot threshold-signature
Last synced: 02 Mar 2026
https://github.com/nethermindeth/eth-pairings-bindings
C# bindings for the eth_pairings library
cryptography eip-1962 pairings
Last synced: 12 Jul 2025
https://github.com/diogoperei29/x.509-cert-verifier
A small project for loading and verifying X.509 certificate chains against a local trust store using the OpenSSL library.
c certificate certificates cmake cpp cpp17 cryptography icmp openssl python python3 raii scripting testing verification x509
Last synced: 07 May 2026
https://github.com/demining/japanese-version-of-bitcoin-blockchain-cryptanalysis
ビットコイン暗号解析ツール
attack bitcoin bitcoin-wallet btc cryptoanalysis cryptography privatekey secp256k1 vulnerability
Last synced: 09 Feb 2026
https://github.com/tom-auger/xchacha-dotnet
A .NET wrapper for the XChaCha APIs in the libsodium crypto library
crypto crypto-library cryptography libsodium xchacha xchacha-dotnet xchacha20-poly1305
Last synced: 14 Jan 2026
https://github.com/hirotoshioi/cryptopals-in-js
Working on http://cryptopals.com/ challenges
cryptography cryptopals javascript
Last synced: 16 Mar 2025
https://github.com/iboudhaine/rsa-encryption-and-in-practice
Implementation and exploration of RSA encryption, including its security properties, practical applications, and real-world use cases. A class project to learn and experiment with cryptographic principles
cryptographic-algorithms cryptography cryptography-project encryption python rsa secure-communication security
Last synced: 25 Oct 2025
https://github.com/ppad-tech/sha256
Pure Haskell SHA-256, HMAC-SHA256
cryptography hashing haskell sha2 sha256
Last synced: 03 Jul 2025
https://github.com/salrashid123/tpmrand
TPM backed crypto/rand Reader
cryptography golang random-generation random-number-generators trusted-platform-module
Last synced: 13 Oct 2025
https://github.com/chainsafe/vdf-js
cryptography javascript verifiable-delay-functions
Last synced: 13 Oct 2025
https://github.com/scotow/pac
Scripts made throughout the PAC courses (Lille University)
course cryptography lille university university-project
Last synced: 09 Jun 2026
https://github.com/chainsafe/pairings-js
Elliptic Curve Pairings in Pure Javascript
cryptography elliptic-curves javascript pairings
Last synced: 13 Oct 2025
https://github.com/nanda-gopal-sb/password_manager
A Password Manager in mordern C++.
bitwise cli cpp cryptography file filesystem password
Last synced: 03 Apr 2025
https://github.com/tetration-lab/solidity-ed-on-bn254
Solidity implementation of a twisted Edwards curve on scalar field of BN254, also known as Baby-Jubjub.
babyjubjub bn254 cryptography ethereum smart-contract solidity
Last synced: 04 May 2026
https://github.com/reklatsmasters/is-chacha20-poly1305-supported
Check whether a chacha20-poly1305 cipher is supported by NodeJS
aead chacha20 chacha20-poly1305 cipher crypto cryptography nodejs poly1305 rfc7539
Last synced: 03 May 2026
https://github.com/hydronixt/zyra-crypto-wallet-mnemonic-seed-phrase-balance-checker
This repository features Zyra, a crypto wallet tool that includes functionality for checking balances using mnemonic seed phrases. It allows you to securely manage and verify cryptocurrency balances associated with various wallets.
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: 03 May 2026
https://github.com/masa-finance/masa-express
Masa Express
cryptography express library session
Last synced: 13 Apr 2026
https://github.com/elliotwutingfeng/balloon_hashing
Balloon Hashing implemented in Dart.
crypto cryptography dart dartlang hash password
Last synced: 09 Jun 2026
https://github.com/umstek/enigma
A generalized software model of the Enigma electro-mechanical rotor cipher machines used by Germans in WWII.
cryptography enigma visual-basic world-war2
Last synced: 30 Jan 2026
https://github.com/karusb/bazcryptlib
BazCrypt 4 Neighborhood Cellular Automata Encryption Algorithm C++ Library
algorithm bazcrypt bazcrypt-encryption c-plus-plus cellular-automata cpp cross-platform cryptography encryption library linux windows
Last synced: 02 May 2026
https://github.com/skylinenando/php
Some functionality or tools to enhance using php
akaxmysqli array creating-txt-file cryptography date hash php random-code str-replace
Last synced: 02 May 2026
https://github.com/notstatilko/uiscrypt
Make strength passwords with uiScrypt!
cryptography password-generator password-manager scrypt scrypt-algorithm urlsafe-base64
Last synced: 15 Feb 2026
https://github.com/crissnamon/soldeea
Encryption algorithm based on system of linear diophantine equations resistant to quantum algorithms
algorithm cryptography decryption diophantine diophantine-equation diophantine-equations encryption encryption-algorithm equation java quantum-algorithms soldeea
Last synced: 02 May 2026
https://github.com/koraa/proverif.vim
Basic proverif support for VIM files.
cryptography highlighting neovim proverif syntax vim
Last synced: 02 May 2026
https://github.com/systemslibrarian/crypto-compare
Interactive cryptographic algorithm reference — 17 categories, 97 algorithms, 16+ countries. Comparison tool with beginner/advanced modes, PQ-safe filtering, and justification report export.
aes cryptographic-algorithms cryptography digital-signatures education homomorphic-encryption nist post-quantum pqc reference typescript vite zero-knowledge
Last synced: 01 Jun 2026
https://github.com/jacob-ian/deno_random_primes
Generate random prime numbers with Deno and the Miller-Rabin test.
Last synced: 02 May 2026
https://github.com/pmielech/stm32-rectenna
Portable radio noise measurement system, based on an STM32f303re microcontroller.
cryptography randomness randomness-generation rectenna rng signal-processing stm32 stm32f303 wifi
Last synced: 08 Jun 2026
https://github.com/codesteel/expressjs-login-application
Login/Register/And Password Reset into one Repository.
authentication cryptography expressjs login
Last synced: 01 May 2026
https://github.com/vlsergey/seccookie
Java library for security cookies, client-side pieces of data protected from reading and modifications by client with strong cryptography
cookie cookies cryptography cryptography-library java java-library security
Last synced: 03 Jul 2025
https://github.com/afraz496/fypafraz
This repository comprises of a Post Quantum Cryptography implementation. This is a repository that includes all of the software developed for the Final Year Project of Afraz Arif Khan (CID 00963429) at Imperial College London.
c cryptography key-exchanges postquantum python
Last synced: 01 May 2026
https://github.com/disalad/caesar-cipher
📜 A tool to encrypt, decrypt & crack texts with a substitution cipher
caesar-cipher caesar-cipher-cli caesar-cipher-python cli cryptography substitution-cipher symetric-key
Last synced: 06 Apr 2025
https://github.com/mukaschultze/diffie-chat
AES-CBC encrypted chat with elliptic-curve Diffie-Hellman key exchange, running on Angular
aes-cbc aes-encryption angular cryptography diffie-hellman elliptic-curves key-exchange-algorithms
Last synced: 21 Jan 2026
https://github.com/bok1c4/pgpkeytypedetector
This includes RSA and ECC cryptographic algorithms
Last synced: 08 Oct 2025
https://github.com/aburdulescu/pocryp
Command line utility for cryptographic primitives
Last synced: 08 Jun 2026
https://github.com/fblupi/encryptator
A simple webapp to encrypt and decrypt messages
Last synced: 30 Apr 2026
https://github.com/raupulus/esp8266-blockchain-tracing-with-display
Shows Real Time Price of Cryptocurrencies on several Screens. Mirror de https://gitlab.com/raupulus/esp8266-blockchain-tracing-with-display
blockchain cryptocurrency cryptography display esp8266 monitor monitoring
Last synced: 30 Apr 2026
https://github.com/karasz/securelog
Forward-secure Go library for tamper-evident audit logs, implementing Ma–Tsudik’s dual-MAC private-verifiable scheme.
audit-logging compliance cryptography forward-security golang log-integrity secure-logging tamper-detection
Last synced: 26 Oct 2025
https://github.com/hyperparticle/integrity-coded-database
Demonstrates and evaluates an Integrity Coded Database (ICDB) implementation
cryptography database icdb mysql
Last synced: 29 Apr 2026
https://github.com/samuel-lucas6/multimac
Authenticate multiple inputs easily using keyed BLAKE2b.
blake2 blake2b blake2b-256 blake2b-384 blake2b-512 crypto cryptography keyed-blake2b mac message-authentication-code multi-input multi-input-mac multi-inputs multi-mac
Last synced: 29 Apr 2026
https://github.com/bowser-2077/keypy
Password Manager On Python.
base64 batch-script chatgpt-based cryptography json keypass-port keypy passwor password-manager python3 release security-tools tool txt
Last synced: 29 Apr 2026
https://github.com/suvasish114/non-adaptive-partial-image-encryption
An image encryption project, proposed by Barrackpore Rastraguru Surendranath College's department of computer science undergraduates under Dr. Sukalyan Som's mentorship on adaptive partial image encryption of grayscale image based on chaos.
cryptography encription imageencryption imageprocessing opencv python
Last synced: 13 Apr 2026
https://github.com/BKLockly/ShadowMeld
🕶️ 隐蔽Shellcode嵌入与反检测加载器生成框架 / Stealthy Payload Delivery Framework with Anti-EDR Capabilities
bypass-antivirus bypass-av cipher cryptography hacking hide-files image-steganography lsb-steganography security shellcode shellcode-loader
Last synced: 01 Apr 2025
https://github.com/machu-gwu/windtalker-project
Encrypt and decrypt text, binaries, files, and directories with a variety of cipher options.
cryptography encryption python tool
Last synced: 13 Feb 2026
https://github.com/catherinee24/my-own-cryptocurrency
My own cryptocurrency with python.
blockchain-technology cryptocurrency cryptography python sha256-hash
Last synced: 28 Apr 2026
https://github.com/aakashsharma7/ai-tutor
A powerful AI-powered educational tutoring system that helps students learn and understand various topics through interactive sessions.
cryptography email-validator fastapi framer-motion generative-ai jwt langchain oauth2 python python-dotenv reactjs slowapi sqlalchemy tailwindcss vite
Last synced: 12 Jun 2025
https://github.com/nyg/opaque-impl
PoC implementation in SageMath of OPAQUE, an asymmetric PAKE protocol.
cryptography elliptic-curve opaque proof-of-concept
Last synced: 13 Jun 2026
https://github.com/inferadb/ledger
InferaDB Ledger — distributed database purpose-built for authorization.
access-control audit-log authorization blockchain cryptography database distributed-systems fine-grained-access-control grpc immutable-ledger inferadb permissions rebac rust storage zanzibar
Last synced: 29 Jun 2026
https://github.com/talha-1010/des-algorithm
A symmetric-key algorithm for the encryption of digital data.
cpp cryptography datastructures des-algorithm encryption-decryption template-specialisations
Last synced: 18 Oct 2025
https://github.com/pushpendra-1697/wedsurf
This React onboarding project includes pages for login, signup, home, and profile functionalities, catering to user authentication and navigation, facilitating a seamless design experience. The user will be blocked for the next 24 hours after putting 5 times wrong password at the time of token-based login.
axios bcrypt chakra-ui cryptography expressjs jsonwebtoken jwt-decode mongodb mongoose nodejs otp-authentication react-components react-hooks react-icons react-router-dom react-slideshow-image reactjs responsive-design token-based-authentication twilio
Last synced: 02 Apr 2026
https://github.com/jalaj711/gocrypto
Cryptography module for golang with support for DES, 3DES, and AES in ECB, CBC, CFB and OFB modes. Also supports SHA512 hashing algortihm.
aes block-cipher cryptography des tripledes
Last synced: 19 Oct 2025
https://github.com/mingikang31/SiFT-v1.0
Cryptography Project
cryptography encryption-decryption python3
Last synced: 09 May 2026
https://github.com/richarddushime/authenticred
AuthentiCred – A Simple and Secure Way to Verify Academic Credentials and Recomendations
blockchain-technology cryptography django-framework ecdsa htmlx jwt-token mkdocs mkdocs-material python3 smart-contracts solidity w3c
Last synced: 28 Apr 2026
https://github.com/drimiteros/secret_scribble_v1.0-open
An offline password manager with a graphical user interface
authentication cryptography encryption open-source password-manager privacy security security-tools
Last synced: 11 Feb 2026
https://github.com/james-honeybadger/zayfer_vault
Full-featured encryption/decryption suite — AES-256-GCM, ChaCha20-Poly1305, RSA, Ed25519, X25519, OpenPGP | Rust core + Python bindings | CLI, GUI (PySide6), Web (FastAPI)
aes-256-gcm chacha20-poly1305 cli cryptography decryption ed25519 encryption fastapi keystore openpgp pyo3 pyside6 python rsa rust
Last synced: 28 Apr 2026
https://github.com/praveena2j/traitor-tracing-system-based-on-random-projections
A Code and Domain Independent Traitor Tracing System Based on Random Projections
cryptography image-processing random-projections security-vulnerability steganography tracing-applications traitor
Last synced: 07 Jun 2026
