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: 2026-07-02 00:06:57 UTC
- JSON Representation
https://github.com/kolosovpetro/rsaencryptionexplained
Simple explanation on the symmetric encryption problematics and main idea behind the Rivest-Shamir-Adleman (RSA) encryption.
assymetric-encryption assymetric-key-cryptography cryptography rsa-cryptography rsa-encryption rsa-key-encryption
Last synced: 09 Feb 2026
https://github.com/randombit/randomized-montgomery
Expermental implementation of randomized Montgomery exponentiation
Last synced: 25 Mar 2025
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/arindal1/morsecode-translator
A Morse-Code Generating web-app based on JavaScript.
cryptography development front-end javascript morse-code webapp
Last synced: 09 Apr 2025
https://github.com/makemake-kbo/satunna
satunna is a WIP reproducible pseudo-random code execution hashing algorithm
crypto cryptography hash hashing-algorithm salt salting virtual-machine
Last synced: 03 Jul 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/ttopm/be-core-bridge
Belel Protocol – World’s first sovereign AI core, authored and safeguarded by Pearce Robinson
ai antidefamation concordium cryptography governance identity identityprotection ipfs justice law memory protocol sentience sovereignty symbiont theology truth truthlogic
Last synced: 16 Apr 2026
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/kuro337/textract
Single Header High Performance C++ Image Processing Library to read content from Images and transform Images to text files.
cpp cpp20 cryptography folly opencv openmp-parallelization
Last synced: 18 Apr 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/hirotoshioi/cryptopals-in-js
Working on http://cryptopals.com/ challenges
cryptography cryptopals javascript
Last synced: 16 Mar 2025
https://github.com/liu-yucheng/retroverse-bike-utils
A utility toolset for the Retroverse Bike project.
Last synced: 18 Jun 2026
https://github.com/elliotwutingfeng/balloon-hashing
Balloon Hashing implemented in Ruby.
crypto cryptography hash kdf-algorithm key-derivation-function password ruby ruby-language
Last synced: 10 Jun 2026
https://github.com/majikah/majik-key
Majik Key is a next-generation seed phrase account library for creating and managing mnemonic-based identities. It provides a post-quantum ready, high-security bridge between BIP39 mnemonics and the Majikah ecosystem.
bip39 crypto cryptography key keypairs majik-message mnemonic security seed-phrase
Last synced: 22 Jun 2026
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/thomas-vilte/mls-go
MLS Protocol (RFC 9420) implementation in Go. Secure group key exchange with forward secrecy and post-compromise security for E2EE messaging.
cryptography encryption end-to-end-encryption go golang messaging-layer-security mls rfc-9420 security
Last synced: 04 Apr 2026
https://github.com/wriar/shadowbox
Development Repository of ShadowBox, an open-source zero-knowledge file storage & encryption platform written in NodeJS
collaborate cryptography deepsource file-manager file-sharing ghdesktop github microsoft nodejs
Last synced: 08 May 2026
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/tulliolo/bip39
A Bip39 library, with a CLI and a collection of tools.
bip39 bitcoin cryptography entropy mnemonic python seed steganography wallet
Last synced: 29 Jun 2026
https://github.com/contisimone99/simple-hw-asimmetric-encryption
Simple Asymmetric Encryption (SAE) system implemented in SystemVerilog and Python. Demonstrates basic key generation, encryption, and decryption operations using modular arithmetic with communication between two parties through public key exchange.
cryptography cybersecurity encryption hardware-design systemverilog verilog
Last synced: 10 Feb 2026
https://github.com/prthd/secure-file-system
A secure multi-user file system with end-to-end encryption, HMAC-based integrity verification, and Unix-style permission control. Features bcrypt-authenticated logins, group-based collaboration, and a command-line interface for secure file operations on untrusted storage.
access-control bcrypt cli cryptography encryption fernet-encryption filesystem hmac-sha256 integrity python secure-storage security unix-permissions
Last synced: 25 Feb 2026
https://github.com/akshatamohanty/practical-blockchain
Website for practicalblockchain.org. Practical Blockchain is a meetup group in Singapore, started in 2021. We focus on talks and workshops by speakers building blockchain applications in production, learning from their research and insights.
blockchain cryptography dapps ethereum security smartcontracts solidity zkproof
Last synced: 09 May 2026
https://github.com/docxology/steganographer
cryptography media-verification open-source python security steganography watermarking
Last synced: 29 Jun 2026
https://github.com/oritwoen/vusi
ECDSA signature vulnerability analysis library and CLI
bitcoin cryptography ecdsa nonce-reuse private-key-recovery rust security vulnerability-detection
Last synced: 01 Feb 2026
https://github.com/juliangrtz/mightyxor
.NET cryptography suite supporting one-time pads, Shamir secret sharing and plausible deniability
crypto cryptography cryptosuite decryption encryption one-time-pad otp plausible-deniability quantum-computing security shamir-secret-sharing shamirs-secret-sharing xor
Last synced: 02 Jun 2026
https://github.com/akhilkailas017/file-xor-encryptor
This repository is used to encrypt and decrypt files in computer using XOR. Based on Python
auto-py-to-exe cryptography encryption pyinstaller python xor
Last synced: 04 Jun 2026
https://github.com/bok1c4/PGPKeyTypeDetector
This includes RSA and ECC cryptographic algorithms
Last synced: 25 Mar 2025
https://github.com/dag0310/otp-crypto
Pseudo one-time pad crypto library for plaintext data exchange.
crypto cryptography encryption key library one-time-pad otp perfect-secrecy random xor
Last synced: 18 Jan 2026
https://github.com/bahanix/chatchan
End-to-end encrypted chat in your browser
chat cryptography end-to-end web-app
Last synced: 13 Oct 2025
https://github.com/georgiifirsov/galois-lib
Finite field arithmetic library written for my research in cryptography
arithmetic cryptography finite-field-arithmetic finite-field-arithmetics finite-fields galois-field mathematics symmetric-cryptography
Last synced: 12 Apr 2025
https://github.com/containerscrew/rsecure
Secure file encryption using pure Rust and AES 🔒
aes-gcm aur-package cli crates-io crypto-library cryptography data-protection file-encryption privacy rust security
Last synced: 11 Feb 2026
https://github.com/adiwajshing/simplecrypto
All coding work done for Ashoka University CS-2362
aes cryptography curve elgamal sign-verification signing verification
Last synced: 28 Feb 2025
https://github.com/mingikang31/SiFT-v1.0
Cryptography Project
cryptography encryption-decryption python3
Last synced: 09 May 2026
https://github.com/roberthgnz/walletfy-cli
Walletfy command-line tools for wallet management.
btc cli cryptocurrency cryptography wallet
Last synced: 14 Mar 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/sean9999/go-oracle
A package that provides basic high-level cryptographic functions using Curve25519
Last synced: 14 Jan 2026
https://github.com/ul-mds/pprl
Collection of software packages for performing privacy-preserving record linkage based on Bloom filters
cryptography privacy python record-linkage
Last synced: 28 Jan 2026
https://github.com/timjp87/elixir_bls
Wrapper around the Herumi BLS 12-381 Elliptic Curve construction and signature aggregation scheme.
cryptography ecdsa-cryptography ecdsa-signature elixir elixir-lang signatures
Last synced: 30 May 2026
https://github.com/mohammedmehdio/rsa
Python tool to work with RSA encryption
cryptography cybersecurity python python3 rsa rsa-cryptography rsa-encryption security tools
Last synced: 22 Apr 2026
https://github.com/z1ph1us/milksad-mnemonic-generator
This tool generates BIP-39 mnemonic phrases derived from Unix timestamps, exploring the 'Milk Sad' vulnerability's implications (CVE-2023-39910)
bip39 bitcoin bitcoin-wallet blockchain bx cryptocurrency cryptography cve-2023-39910 entropy exploit milk-sad mnemonic-generator multi-language security-tool seed-phrase unix-timestamp vulnerability wallet-security
Last synced: 12 Mar 2026
https://github.com/crane-valley/kylix
A post-quantum cryptography library implementing NIST FIPS standards in pure Rust.
cryptography dilithium fips-203 fips-204 fips-205 kyber lattice-cryptography ml-dsa ml-kem no-std post-quantum pqc rust security slh-dsa
Last synced: 28 Jan 2026
https://github.com/eltneg/kryptograzig
Simple public key cryptography algorithms implemented in zig
cryptography encryption-decryption zig
Last synced: 05 Jun 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/wisepythagoras/pyrin
A [fairly slow and] secure 512-bit one way cryptographic hash function.
crypto crypto-library cryptographic cryptography cryptography-library cryptography-tools cryptojs hash hash-functions sha1 sha256
Last synced: 24 Apr 2026
https://github.com/octocorvus/broccoli_salsa
Salsa20 stream cipher implementation in Rust.
Last synced: 16 Mar 2025
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/lgraubner/strong-pwgen-cli
🔒Generate cryptographically strong passwords.
cli crypto cryptography password password-generator
Last synced: 27 Oct 2025
https://github.com/tychosoft/moderncli
C++17 header only library for common uses.
cpp cross-platform cryptography header-only lock-free logging-library multithreading serial socket-programming ssl string-manipulation sync
Last synced: 06 Jul 2025
https://github.com/sourish-kanna/side-projects
These are my other side projects which are not that big for a dedicated repository
ascii cesar-cipher cesar-cypher cryptography encryption java python side-project
Last synced: 11 May 2026
https://github.com/vonderklaas/python-password-manager-cli
This is application which imitates a password book, where you can add passwords into the file, or you can view your passwords from the file
Last synced: 22 Jun 2026
https://github.com/dipanshkhandelwal/manytimepad
A solution to many time pad attack https://manytimepad.js.org/
cryptography encryption manytimepad onetimepad
Last synced: 15 Feb 2026
https://github.com/exploide/ulpcrypt
Implementation of the U-LP Cryptosystem
cryptography cryptography-library
Last synced: 06 Sep 2025
https://github.com/aleksandrhovhannisyan/serverless-cryptography-algorithms
Implementations of elementary cryptography algorithms using forms and 11ty Serverless.
11ty 11ty-serverless ciphers cryptography javascript netlify
Last synced: 25 Apr 2026
https://github.com/kn0sys/qfe
qualitative frame entanglement - an experimental protocol for quantum-secure communication
ai cryptography pqc quantum-cryptography
Last synced: 23 Feb 2026
https://github.com/kevincharm/sparse-merkle-tree
Optimised SMT implementation in Solidity & accompanying JS lib
cryptography ethereum evm merkle-tree solidity sparse-merkle-tree
Last synced: 16 Mar 2026
https://github.com/ocdbytes/ecdsa-node-blockchain
This project is an example of using a client and server to facilitate transfers between different addresses. Since there is just a single server on the back-end handling transfers, this is clearly very centralized. We won't worry about distributed consensus for this project.
cryptography ethereum-cryptography javascript publickey-cryptosystem vitejs
Last synced: 13 Apr 2026
https://github.com/ia/crypto
crypto means cryptography
base64 challenges cryptography perl xor
Last synced: 11 Feb 2026
https://github.com/transmute-industries/linked-data-signature-starter-kit
JSON-LD Signature Starter Kit
Last synced: 16 Jul 2025
https://github.com/justscott/rapidrsa
Simpler to use implementation of the pycryptodome RSA algorithm
asymmetric-cryptography cryptography encryption-decryption python3 rsa rsa-cryptography
Last synced: 20 Jun 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/edycutjong/synod
🏛️ Atomic multi-agent transactional orchestration engine running inside Intel TDX TEE boundary with 100% cryptographic rollback guarantees, powered by Terminal 3 ADK.
cryptography governance hackathon intel-tdx multi-agent nextjs react secp256k1 tee terminal3 wasm
Last synced: 21 Jun 2026
https://github.com/ddc/ddccryptography
Encode and Decode strings with Cryptography
cryptography ddccryptography decode decoder encode encoder python python-3 python3
Last synced: 11 Feb 2026
https://github.com/aeliot-tm/doctrine-encrypted-bundle
Doctrine Encrypted bundle permits to encrypt/decrypt separate columns of database via Doctrine column types.
ast cryptography decryption doctrine doctrine-extension doctrine-orm encryption php routines symfony-bundle
Last synced: 12 Feb 2026
https://github.com/osennij-morok/korobu
A tool for encryption and decryption written in Rust
Last synced: 10 Sep 2025
https://github.com/hungrybluedev/python-basic-cryptography
Implemenation of basic Cryptography techniques and algorithms, along with tools useful for analysis.
algorithm cryptography python3
Last synced: 08 Apr 2025
https://github.com/edycutjong/epoch
⏳ Verifiable, privacy-blind inheritance and continuity orchestration inside hardware-isolated enclaves.
cryptography dead-mans-switch intel-tdx nextjs rust tee webassembly
Last synced: 21 Jun 2026
https://github.com/glitchedpolygons/glitchaes.blazorwebapp
GlitchAES (say: "glitches") is a web-based (zero-knowledge, static client-side only) GUI that wraps AES-GCM.
aes cryptography decryption encryption gcm symmetric
Last synced: 14 Feb 2026
https://github.com/saikiranmatta/false-bottom
False Bottom, a deniable encryption algorithm.
cryptography deniable-encryption encryption
Last synced: 14 Feb 2026
https://github.com/joseph-ogutu/expense-management-application
Crafted AI powered comprehensive full-stack expense management application. facilitating effortless expense tracking & management.
bootstrap channels cryptography django html javascript openai python websocket
Last synced: 16 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/hrichharms/salsa20
Salsa20 stream cipher implemented in Haskell
cryptography salsa20 stream-cipher xor-cipher
Last synced: 08 Apr 2025
https://github.com/projects-developer/diffie-hellman-key-exchange-algorithm-cryptography-project
This project implements the Diffie-Hellman Key Exchange Algorithm, a popular cryptographic protocol that enables two parties to establish a shared secret key over an insecure communication channel. Diffie-Hellman-Key Exchange Algorithum Project Includes Project Includes Source Code, PPT, Synopsis, Report, Documents, Base Research Paper & Video
btech-project computer-science-project cryptography diffie-hellman-key-exchange final-year-projects finalyearproject finalyearprojects key-exchange-public-key-cryptography mtechprojects private-key-cryptography secure-communication secure-key-exchange
Last synced: 01 Mar 2026
https://github.com/girish1729/openssl-cheatsheet
OpenSSL command line toolkit cheatsheet
command-line cryptography openssl
Last synced: 19 Mar 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/nunees/trabalho_rsa_unip
Implementação do algoritmo RSA básico.
cryptography python rsa-cryptography
Last synced: 20 Mar 2025
https://github.com/gkbrk/r30sponge.h
Sponge function based on the Rule 30 Cellular Automaton
c c89 c99 cryptography stb stb-library
Last synced: 24 Mar 2025
https://github.com/rishabhsingh2510/basic-cryptography
Cryptography
cipher cryptography decoding encoding python tkinter user-interface
Last synced: 11 Jun 2025
https://github.com/forgesworn/canary-kit
Deepfake-proof identity verification. Per-member spoken words, silent duress detection, encrypted group sync. Open protocol.
cryptography deepfake-detection duress-detection identity-verification minimal-dependencies nostr open-protocol pwa security typescript
Last synced: 01 Apr 2026
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/qalle2/nes-md5
Qalle's MD5 Hasher (NES)
6502 assembly cryptography homebrew md5 nes
Last synced: 16 Apr 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/fzheng/fips-crypto
High-performance post-quantum cryptography for JavaScript and TypeScript, powered by Rust + WebAssembly.
cryptography fips-203 fips-204 fips-205 ml-dsa ml-kem post-quantum slh-dsa
Last synced: 01 Apr 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/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/ivan-guerra/caesar_cipher
Caesar Cipher encrypt/decrypt/cracking utilities
caesar-cipher cryptography password-cracking
Last synced: 22 Jun 2026
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/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/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/larueli/rsanf05utt
Chiffrement RSA en C dans le cadre d'un cours à l'UTT, école publique d'ingénieurs
c cryptography doxygen mathematics rsa utt
Last synced: 24 Jun 2026
https://github.com/seniorbatleo/cryptocart
Secure chat software for your computer.
chat cryptocart cryptography messaging secure security
Last synced: 24 Jun 2026
https://github.com/ocdbytes/secp256k1_bitcoin
This is the cryptography algorithm used in bitcoin to generate public and private keys. Bitcoin uses SECP256k1 C-language library to use this encryption in the Bitcoin operating system.
bitcoin cryptography rsa-cryptography secp256k1
Last synced: 18 Apr 2026
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/rcmilan/ex-cryptographyapp
Implementando Criptografia em Runtime
cryptography dotnet intermediate-code-generation runtime typeconverter
Last synced: 19 Apr 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/randika00/aes-encryption-decryption
Encryption and Decryption using AES (Advanced Encryption Standards)
aes aes-encryption cryptography decryption encryption
Last synced: 20 Apr 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/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
