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: 2026-06-23 00:06:53 UTC
- JSON Representation
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/kharizzakaye/message-encoder-decoder
A Python program that encodes and decodes a message. Built with Tkinter and Python Base64.
base64 cryptography python3 tkinter
Last synced: 10 Mar 2025
https://github.com/forgesworn/shamir-words
Split secrets into human-readable BIP-39 word shares using Shamir's Secret Sharing over GF(256)
backup bip39 cryptography galois-field mnemonic privacy recovery shamir-secret-sharing threshold typescript
Last synced: 04 Apr 2026
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/yurykozhenov/infosec
University Information Security tasks
Last synced: 31 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/mfridman/cryptopals
My solutions for http://cryptopals.com, written entirely in Go, sprinkled with concurrency
cryptography cryptopals go golang
Last synced: 16 Mar 2025
https://github.com/rushikeshghuge-19/blockchain_django
A secure Blockchain-Based Voting System built with Django. It records votes on a custom blockchain for transparency and integrity, featuring user authentication, candidate management, and real-time vote tallying. The backend uses Django, with SQLite for data storage.
blockchain cryptography django proof-of-work python sha-256 sqlite voting-system webdevelopment
Last synced: 10 May 2026
https://github.com/danutama/python-aes-encryptor
A Python-based desktop application for encrypting and decrypting various data formats using the Advanced Encryption Standard (AES 128, 192, 256-bit).
advanced-encryption-standard aes aes-128 aes-192 aes-256 aes-encryption algorithm cipher ciphertext cryptography encryption-decryption python python3 rijndael rijndael-algorithm
Last synced: 23 Apr 2025
https://github.com/abdulrahmans0414/securepass-generator
SecurePass Generator is a modern, user-friendly password generator built with React. Create strong, randomized passwords with customizable options like length, numbers, and special characters.
clipboard-copy cryptography frontend password-generator react securepasswords security tailwindcss user-friendly web-application
Last synced: 18 Apr 2026
https://github.com/inanepain/id-forge
A lightweight, versatile PHP library for generating and encoding unique identifiers. It supports base32, base58, base64, nanoid, snowflakeid, uuid, and ulid, providing fast, secure, and flexible solutions for ID generation and encoding in modern applications.
base32 base58 base64 cryptography encoding id-forge id-generation inanepain library nanoid php snowflakeid ulid unique-identifier uuid
Last synced: 14 Jan 2026
https://github.com/alessiofrittoli/crypto-key
Lightweight TypeScript library for Node.js Cryptographic keys
cipher cripto-keys cryptography hash hmac scrypt
Last synced: 05 Apr 2026
https://github.com/thomasarmel/binary_polynomial_mod_algebra
Basic algebra on univariate binary polynomial (over GF(2))
algebr binary cryptography polynomial univariate
Last synced: 05 Apr 2026
https://github.com/paulshpilsher/genrsa
RSA keys generator written in Go
cryptography go pem publickey rsa
Last synced: 03 Nov 2025
https://github.com/f2rkan/digital-content-platform
An example of a digital content platform that I created to reinforce the structures I learned in the object-oriented programming applications course at university. I do CRUD operations and use MD5 encryption algorithm during login process; I also preferred MySQL as database.
automation cryptography eclipse-ide java javafx md5-hash ui-design ux-design
Last synced: 10 May 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/pieroboseta/filenfile
filenfile is a Python application that securely hides and extracts files and folders within a main file of your choice using encryption and compression techniques, providing a simple and efficient way to store sensitive data discreetly.
compression cryptography data-hiding data-security file-archiving file-encryption file-security hidden-files hide lzma-compression metadata-encryption python-application python-gui python-script secure-storage tkinter
Last synced: 01 Apr 2025
https://github.com/saiteja-talluri/cryptosuite-application
A small cryptosuite application written in C++
cryptography miller-rabin rsa-encryption
Last synced: 19 Apr 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/theaswanson/hash-tool
A Windows Forms application that computes various hashes of a given file or string, including MD4, MD5, SHA1, SHA256, SHA512, and Whirlpool.
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/farahsedd/secure-authentication-project
This project focuses on creating a reliable authentication and network services infrastructure using OpenLDAP, SSH, Apache, OpenVPN, DNS, and Kerberos.
apache authentication cryptography dns infrastructure kerberos network-security openldap openvpn ssh
Last synced: 08 Jan 2026
https://github.com/diegodromer/guardara
Guardara – Seu cofre digital inteligente. De senhas “fortinhas” a criptografia de dar inveja a espião da CIA. 🔐
cloud-security cryptography dart encryption firebase flutter hive mobile mobile-app mvvm open-source password-generator password-manager secure-storage tfa two-factor-authentication
Last synced: 01 May 2026
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/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/gauravg-20/elliptics
cryptography encryption-algorithms encryption-decryption
Last synced: 14 Aug 2025
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/sohnryang/crypto-contest-2020
상받은 2020년 암호경진대회 솔루션
block-cipher crypto-contest cryptography hill-cipher loop-unrolling
Last synced: 21 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/everyways/test-app-uniris
Uniris Angluar 11 init
angular blockchain cryptography transaction-chain uniris
Last synced: 10 May 2026
https://github.com/aleph-im/signature-based-encryption
A simple proof of concept of generating an AES CryptoKey using an EIP-712 signed payload
cryptography encryption ethereum
Last synced: 22 Apr 2026
https://github.com/3qnrpdwd/longinuspypi
It is a library created to study sessions, tokens, etc. under the https communication protocol. It is incomplete and insecure.
aes cryptography decryption encryption python3 rsa socket socket-io
Last synced: 11 May 2026
https://github.com/harmin-parra/x509-wrapper
Wrapper for the pyca/cryptography package to query attributes of X509 cryptographic objects in a fast and simple way
cryptography python python3 x509
Last synced: 12 Jun 2025
https://github.com/nouemankhal/multitictactoe
Mutlplayer Tic Tac Toe Game in JAVA
cryptography java multithreading mysql socket-programming swing
Last synced: 22 Apr 2026
https://github.com/telkomdev/pycrypsi
Python custom crypto utility that wraps the pycryptodome module to make life easier (Digest, Cipher, HMAC, RSA, RSA Digital Signature)
cryptography hash python rsa telkomdev
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/usherlabs/ecdsa-jwt
ECDSA challenge-based authentication with JWT session management
authentication cryptography ecdsa jwt rust
Last synced: 20 Jan 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/joe-degs/digcoin
How i think bitcoin works in a way... I don't really know what I'm doing. But it feels good.
cryptocurrency cryptography distributed-systems golang
Last synced: 11 Jun 2025
https://github.com/mtumilowicz/cryptography-rsa-workshop
asymmetric asymmetric-algorithm asymmetric-cryptography asymmetric-encryption asymmetric-keys asymmetry cryptogra cryptography rsa rsa-algorithm rsa-cryptography rsa-encryption rsa-vulnerability vulnerabilities workshop workshop-materials
Last synced: 10 Jun 2026
https://github.com/akhuntsaria/online-bcrypt-generator
Yet another online bcrypt generator.
bcrypt cryptography encryption generator javascript webpack
Last synced: 17 Jan 2026
https://github.com/n1ckl0sk0rtge/scrambledb-driver
A JDBC driver for connection to a database and access data in a ScrambleDB-fashion
cryptography encryption gdpr privacy pseudonymisation pseudonymization scrambledb security
Last synced: 13 Oct 2025
https://github.com/praths71018/django_and_rest_framework_fundamentals_hospitalmanagement
A comprehensive Hospital Management System which is built using Django and Django Rest Framework
api-rest apm authentication authorization bitbucket cryptography django django-celery django-celery-beat django-rest-framework django-signals encryption-decryption middlware mysql newrelic redis unit-testing
Last synced: 13 Apr 2026
https://github.com/yaon-c2h8n2/krypton
Projet réalisé dans le cadre de l'UE Codages & Cryptographie en M1 à l'Université de Bourgogne
cryptography data-compression-algorithms data-encoding
Last synced: 05 Oct 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/toniomacaronio/keccak-rust
Keccak implementation in Rust
crypto cryptography keccak rust sha3
Last synced: 24 Mar 2025
https://github.com/soumabha-banerjee/enigmaticbyte
This is a steganography desktop application that hides txt messages inside a cover image. It is completely developed using JavaFX and Cryptography and Steganography both is used. For Cryptography we used a symmetric key technique called Columnar Transposition and for Steganography we used LSB Insertion technique.
cryptography cryptography-algorithms desktop-application java javafx javafx-desktop-apps network-security steganography steganography-algorithms
Last synced: 14 Feb 2026
https://github.com/dpetrosy/encryptor-decryptor
My small project encryptor / decryptor written in Python.
algorithm console-application cryptography decoder encoder encoder-decoder encryption-decryption python python3
Last synced: 06 Oct 2025
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/jcbritobr/gocrypto-study
This study is based on Golang Cryptography for Depeloper book and its examples.
Last synced: 06 Oct 2025
https://github.com/pmarreck/blip_mp
BLIP-storage arbitrary-precision integers in pure Zig. Beats GMP at i64 (1.95-2.66×) and common cryptographic mul (1.12-1.46×) on Apple Silicon. 8240 GMP cross-validation tests pass.
arbitrary-precision-integers bignum blip cryptography ffi gmp multi-precision zig
Last synced: 31 May 2026
https://github.com/ohimoiza1205/goldman-sachs-forage-swe-simulation
Crack passwords and suggest security improvements as a Governance Analyst at Goldman Sachs.
cryptography goldman-sachs hashcat password-cracking software-engineering
Last synced: 17 Jan 2026
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/danielost/ecpoint-wrappers
Convenient wrappers for operations on elliptic curves in Golang.
cryptography ecc elliptic-curves
Last synced: 06 Oct 2025
https://github.com/winstxnhdw/tisc-2021
Python code for The InfoSecurity Challenge 2021.
cryptography cybersecurity tisc2021
Last synced: 30 Mar 2025
https://github.com/bmeneg/lapwing
Lightweight crypto algorithms library for highly resource-constrained devices.
c clibrary cryptography embedded
Last synced: 24 Mar 2025
https://github.com/AravindanAppu/Notcoin-crypto-bot
airdrop-notcoin bitcoin btc crypto cryptocurrencies cryptocurrency cryptography ethereum getgems nft notcoin notcoin-airdrop notcoin-bot notcoin-bot-2024 notcoin-guide notcoin-strategy notcoin-telegram notcoin-token ton toncoin
Last synced: 11 Mar 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/pranjalco/caesar-cipher-simple
A Python program that implements the Caesar Cipher for encoding and decoding messages. Users can input text, choose shift numbers, and decide whether to encode or decode. Includes a user-friendly loop for multiple operations in one run.
algorithms cipher console-application cryptography python-programming security
Last synced: 30 Mar 2025
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/losthopes/secured-accounts-lab
Lab for Security of programs and Data course
Last synced: 14 Mar 2025
https://github.com/selendra/contract-registry
Selendra Contract Registry is a WASM smart contract registry writen in Rust based on ink! smart contract framwork.
cryptocurrency cryptography p2p-network payment rustlang smart-contracts token wasm
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/mateusjssilva/digital-envelope
Implementation of a Digital Envelope system, which allows the protection and secure transmission of files through encryption.
cryptography envelope-encryption java secure
Last synced: 24 Apr 2026
https://github.com/kaushalag29/cryptography
Basic Cipher Codes With Python.Deals With Encryption and Decryption.
books cryptography python-script python2-7
Last synced: 26 Oct 2025
https://github.com/vobst/ctf-nsa_backdoor
Solution of picoCTF 2022 NSA backdoor challenge.
backdoor cryptography ctf-writeups nsa picoctf
Last synced: 07 Oct 2025
https://github.com/simplito/crypt-erl
Erlang wrapper for unix libcrypt library
bcrypt cryptography erlang libcrypt
Last synced: 06 Jun 2026
https://github.com/hambosto/sweetbyte
A very small, very simple, yet very secure encryption tool.
aes-256 argon2id cryptography decryption encryption golang privacy-tools reed-solomon security security-tools xchacha20-poly1305
Last synced: 07 Oct 2025
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/dhcgn/crypto
Wrapper of secure encryption implementation to simplify the usage.
cryptography encryption go golang
Last synced: 17 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/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/aniketc068/atick-python
Standalone Python library for PDF digital signatures — PAdES/CMS, USB tokens, Windows store, Indian eSign, timestamps, LTV and a green-tick appearance Adobe shows as valid. Zero dependencies.
adobe cades cryptography digital-signature esign ltv pades pdf pdf-signature pkcs11 python sign-pdf timestamp
Last synced: 16 Jun 2026
https://github.com/mokkunsuzuki-code/stage355
Stage355: Signature Key Status Verification and Revocation Enforcement Layer with signing-time validity checks, Stage354 ledger binding, fail-closed revoked-key rejection, and PQC intent-only protection.
audit cryptography cybersecurity ed25519 evidence fail-closed gpg key-revocation key-rotation key-status ledger ml-dsa pqc qsp signature-verification sigstore supply-chain-security transparency trust verification
Last synced: 23 Jun 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/rudradcruze/cryptography-algorithm-java
Some algorithm of network cryptography
algorithms cryptography java network network-security substitution
Last synced: 30 Jul 2025
https://github.com/soyart/gfc
stable branch of gfc, a small go file encryption utility using AES 256 and PBKDF2
aes crypto cryptography encryption rsa
Last synced: 14 Jan 2026
https://github.com/samhaque/hashgame
Fun little hash game to test players information theory skills
bcrypt cryptography flask mongodb python
Last synced: 10 May 2026
https://github.com/ndpar/spring-crypto-demo
Examples of crypto operations in Kotlin and Spring
bouncycastle cryptography openssl spring
Last synced: 12 Mar 2026
https://github.com/incertia/crypto-primer
intro to crypto given to my coworkers at AIS
algebra algebraic-structures cryptography dh diffie-hellman ecc ecdh rsa
Last synced: 18 Jan 2026
https://github.com/kzorin52/nistp256
Rust dylib wrapper to RustCrypto/elliptic-curves [only keypair]
crypto cryptography elliptic-curves keypairs nistp256 perfomance secp256r1
Last synced: 08 Oct 2025
https://github.com/lasse-tom-lang/python-cryptographie
Program for en- and decrypt messages
cryptography pysimplegui python steganography
Last synced: 31 Mar 2025
https://github.com/toxic-whitelgnd/matrice_cryptography
A simple math Project based on Matrices-Cryptography by using python-numpy
cryptography math-problem matrices numpy python3
Last synced: 25 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 ssh statelearning strict-kex vulnerability
Last synced: 03 Sep 2025
https://github.com/hsfzxjy/kuroport
[WIP] :ribbon: Decentralized file teleporter & messenger, designed for multiple platforms, transmitting over diverse networks.
cryptography decentralized file-sharing messenger
Last synced: 30 Mar 2025
https://github.com/dan149/noice
OTP (one-time pad) encryption CLI tool.
blazingly-fast cipher cli cryptography encryption encryption-decryption one-time-pad open-source otp zig ziglang
Last synced: 24 Mar 2025
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/natharyan/secret-sharing-arithmetic-operations
Shamir's secret sharing to generate shares for arithmetic operations over two secrets.
cryptography cryptography-project secret-sharing shamir-secret-sharing
Last synced: 09 Oct 2025
https://github.com/zerdicorp/hashalgo
Second Attempt to Understand Hashing.
algorithm cryptography hash hashing java sha256 study
Last synced: 02 Apr 2025
https://github.com/parisaalizadeh2003/cryptography-tool
A Python-based tool for file encryption and decryption using a custom cipher and wxPython for GUI.
cryptography encription python security-tools wxpython
Last synced: 12 Apr 2025
https://github.com/nikhilr612/isaacrs
No-std implementation of ISAAC PRNG
cryptography isaac isaac-64 no-std random-number-generator
Last synced: 03 Apr 2025
https://github.com/pedroalbanese/leacrypt
TTAK.KO-12.0223 Lightweight Encryption Algorithm (ISO/IEC 29192-2:2019) with Galois/Counter Mode (LEA-GCM)
aead cryptography golang lea symmetric-encryption
Last synced: 16 Jun 2026