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/samuel-lucas6/padme.net
A .NET implementation of PADMÉ padding.
crypto cryptography padding padme padme-padding
Last synced: 23 Jan 2026
https://github.com/sheroz/rsa
Samples of RSA (Rivest–Shamir–Adleman) asymmetric cipher implementations in Rust
crypto cryptography public-key-cryptography rsa rsa-cipher rsa-cryptography rsa-cryptosystem
Last synced: 04 Jan 2026
https://github.com/catalyst-network/dotnet-crypto-benchmarking
Project to benchmark different c# crypto libraries and curves including NSec && SecpK1 wrapped && BouncyCastle
atlas-city benchmarkdotnet benchmarking bouncycastle crypto-benchmarking crypto-libraries cryptography nsec secp256k1
Last synced: 29 May 2026
https://github.com/christoffercarlsson/autograph
The Autograph Protocol
authentication chacha20-poly1305 cryptography decentralization diffie-hellman ed25519 elliptic-curves freedom hkdf identity ownership privacy security verification x25519
Last synced: 18 Oct 2025
https://github.com/susumuota/nostrain
Nostr client library with no strain.
client cryptography nodejs nostr protocol relay sns social-media social-network typescript vite
Last synced: 08 May 2026
https://github.com/emrecpp/nextcrypt
Python app with Qt interface for encryption/decryption (Caesar, Vigenere, Atbash, Vernam)
cipher cryptography fluent-design gui modern pyqt pyqt5 pyside pyside6 python qfluentwidgets qt ui
Last synced: 08 May 2026
https://github.com/hirannor/xml-digital-signature-java
An example project how to create digitally signed xml in java (detached signature)
certificate cryptography detached-signatures digital-signature digital-signature-algorithm digital-signature-library dsig java java-11 keystore maven pkcs12 signature signature-generation signature-verification xml xml-digital-signature xml-security xmldsig xmldsig-signature
Last synced: 08 May 2026
https://github.com/jnm2/threshold
Paper backup requiring a chosen K of N pieces to decrypt. Useful for storing passwords, private keys for PGP or Bitcoin, recovery codes, secret instructions, and small files. Work in progress.
backup bitcoin cross-platform cryptography csharp digital dotnet-core encrypt paper password pgp print private-key redundancy secret-sharing security shamir threshold wallet
Last synced: 10 May 2026
https://github.com/skyf0l/discrete-logarithm
Fast discrete logarithm solver in Rust
cryptography discrete-logarithm number-theory
Last synced: 11 Oct 2025
https://github.com/ml3m/cryptography-algorithms-exploration
implementations of various cryptographic algorithms, including both symmetric and asymmetric encryption, hashing, and key exchange techniques
blowfish-algorithm chacha20 cryptography cryptography-algorithms cryptography-concepts encryption-decryption rsa-cryptography
Last synced: 18 Jun 2025
https://github.com/sudiptab2100/cryptographicalgorithms
Implementation of Cryptographic Algorithms of course Modern Cryptography(CSC049P1M) offered in IIT Jammu.
aes-encryption affine-cipher ceaser-cipher cryptoanalysis cryptoanalysis-algorithms cryptography des-encryption diffie-hellman-key grain-stream-cipher hill-cipher rc4-algorithm rc4-cipher rc4-encryption rsa-cryptography rsa-encryption substitution-cipher vigenere-cipher
Last synced: 07 Jul 2025
https://github.com/cmason3/vaulty.rs
Vaulty in Rust - Encrypt/Decrypt with ChaCha20-Poly1305
chacha20-poly1305 cryptography rust-lang scrypt sha256
Last synced: 26 Jul 2025
https://github.com/erhant/polenta
A toy language to play around with polynomials over finite fields.
cryptography lambdaworks pest polynomials repl rust
Last synced: 06 Feb 2026
https://github.com/namecoin/certinject
Inject certificates into Windows CryptoAPI trust store, with EKU and name constraints.
certificates cryptoapi cryptography hacktoberfest name-constraints privacy security tls windows x509
Last synced: 27 Jan 2026
https://github.com/saeed0xf/black-hat-ctf
This CTF event was organised by Data Science analytics and Cyber Security club at the annual Tech Fest Prajyukttam 🎆, Assam Don Bosco University 🎓
binary-exploitation capture-the-flag cryptography ctf ctf-challenges ctf-tools digital-forensics web-exploitation website
Last synced: 01 Mar 2025
https://github.com/confy-security/confy-addons
Implementation of symmetric and asymmetric encryption with AES and RSA algorithms for client applications of the Confy communication system
aes base64 confy cryptography decryption encryption privacy rsa security
Last synced: 28 Jan 2026
https://github.com/sip-protocol/sip-protocol
Shielded Intents Protocol - The Privacy Standard for Web3
blockchain cross-chain cryptography defi intents near-protocol nextjs privacy privacy-preserving sdk stealth-addresses typescript web3 zcash zero-knowledge-proofs
Last synced: 16 Jun 2026
https://github.com/chanced/navajo
A cryptographic toolkit for Rust
crypto cryptography rust security
Last synced: 19 Jan 2026
https://github.com/nemanjapetrovic/cryptography-course-elfak
Cryptography course @ Faculty of Electronic Engineering, University of Niš, Serbia
cipher cryptography knapsack multithreading rc4 simple-substitution tea threading xtea
Last synced: 16 Apr 2026
https://github.com/w-henderson/vaccert
💉 Cryptography-based vaccine certification app, built with React Native.
cryptography react-native signature vaccination vaccine-tracker
Last synced: 10 May 2026
https://github.com/bodrovis-learning/cryptobits-yt-series
Серия уроков Crypto bits на YouTube
crypto cryptocurrency cryptography
Last synced: 15 May 2025
https://github.com/virgilsecurity/virgil-keyknox-kotlin
KeyKnox SDK allows developers to communicate with the Virgil Keyknox Service to upload, download, and synchronize encrypted sensitive data (private keys) between user's devices.
cryptography data-sharing keyknox sdk
Last synced: 23 Jul 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/nanoframework/system.security.cryptography
📦 .NET nanoFramework System.Security.Cryptography
cryptography csharp dotnet embedded-systems hacktoberfest nanoframework
Last synced: 02 Mar 2026
https://github.com/virtualox/get-randomhex
Adjustable Random Hex String Generator.
cryptography function hex hexadecimal powershell powershell-scripting powershell-scripts random-key-generator rngcryptoserviceprovider
Last synced: 08 Apr 2026
https://github.com/onlyf0ur/pq-msg
Pure Rust abstractions for higher-level implementations of post-quantum cryptography in secure messaging protocols.
cryptography encryption key-exchange messaging nist-pqc post-quantum-cryptography
Last synced: 23 Feb 2026
https://github.com/vechain/thor-devkit.java
Java (8+) library to assist a smoother development process on VeChainThor for all developers and hobbyists. Includes wallets creation, transaction assembling, signature, ABI encoding, and bloom filter.
bloom-filter crypto cryptocurrency cryptography hd-wallet java keystore mnemonic-wallets sdk thor-devkit vechain
Last synced: 27 Nov 2025
https://github.com/openzebra/argon2.pure.js
A pure TypeScript/JavaScript implementation of the Argon2
argon2 argon2id cryptography hash hashing password-hash
Last synced: 07 Mar 2026
https://github.com/abdulsmapara/constant-size-group-signatures
Implementation of the research paper - http://crypto.stanford.edu/~xb/pkc07/fullgrpsigs.pdf
constant-size-group-signatures cryptography number-theory
Last synced: 11 Jun 2026
https://github.com/projects-developer/steganography-project
Steganography is the practice of hiding secret information within a non-secret message, image, or other medium. Steganography Project Includes Source Code, PPT, Synopsis, Report, Documents, Base Research Paper & Video tutorials
btechprojects computerscienceprojects cryptography cybersecurity dataencryption datahiding digitalforensics informationsecurity mtechprojects secretcommunication steganalysis steganography steganography-project
Last synced: 06 Feb 2026
https://github.com/artdelpi/seguranca-computacional-vigenere
Este projeto implementa a cifra de Vigenère e ataque por análise de frequência.
cibersecurity cryptography flask vigenere vigenere-cipher
Last synced: 02 Jun 2026
https://github.com/benwoo1110/cryptographyapp
Advanced converter for modern cryptography algorithms
Last synced: 31 Mar 2026
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/ashishgopalhattimare/stickynotesfx
A synchronised Sticky Note between desktop and android platform via Google FIrebase
android-application cryptography desktop-application firebase-database java-8 javafx synchronization ux-design
Last synced: 07 May 2026
https://github.com/hk-transfield/python-quantum-key-exchange-simulator
A simple program to simulate a Quantum Key Exchange (QKE) algorithm, written in Python3.
cryptography encryption python python3 quantum-computing quantum-key-distribution symmetric-cryptography symmetric-encryption symmetric-key-cryptography xor-cipher xor-encryption
Last synced: 01 Apr 2025
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/sebastienrousseau/cmn
A Rust library for accessing a collection of mathematical and cryptographic constants
avogadro boltzmann constants cryptography data-structures development-tools euler gamma golden-ratio hash mathematics pi planck rust silver-ratio squareroot tau
Last synced: 28 Mar 2025
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/ash-2k3/ooni-chainwatch
A python script to extract certificate chains from OONI web connectivity measurements and submit them to a Let's Encrypt Certificate Transparency (CT) log. This aids in monitoring and auditing the certificates used on the web, contributing to internet transparency efforts.
certificate-transparency cryptography python s3-buckets x509certificates
Last synced: 10 Jun 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/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/tom474/cryptography-comparative-analysis
[RMIT 2024C] COSC2539 - Security in Computing and IT - Analytical Security Report
asymmetric cryptography hashing security symmetric
Last synced: 07 May 2026
https://github.com/tomerh2001/git-crypt-pipe
Decrypts git-crypt encrypted repositories in Bitbucket Pipelines.
bitbucket bitbucket-pipeline cryptography git git-crypt pipe
Last synced: 03 Mar 2025
https://github.com/rohith-2/cryptographic_blockchain
Simulating Blockchain with mining and peer verification
blockchain cryptography mining sha-256
Last synced: 23 Jan 2026
https://github.com/nandanr06/full-stack-cryptocurrency
Cryptocurrency Tracker is a real-time app for monitoring cryptocurrency prices, market trends, and historical data. Powered by the CoinGecko API, Node.js, Express, and React, it allows users to view live market updates, explore trending coins, and analyze price histories with interactive charts—all in a responsive, user-friendly interface.
bitcoin cryptocurrency cryptography marketplace
Last synced: 17 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/moosesue/modular-inverses
Modular inverse discussion leading to single character RSA demo.
cryptography modular-inverse number-theory rsa rsa-algorithm rsa-cryptography rsa-decryption
Last synced: 23 Jun 2026
https://github.com/subatomicplanets/shieldmessenger
A simple end-to-end encrypted messenger
android bcrypt cryptography e2ee encryption java messenger python rsa
Last synced: 10 May 2026
https://github.com/elichai/chacha20
chacha20 chacha20-poly1305 cryptography rust
Last synced: 26 Jul 2025
https://github.com/kuanhungchen/spring-2021-network-security
🔐 Implementation of encryption algorithms such as AES, Miller-Rabin and Elliptic Curve ElGamal.
aes-encryption cryptography elgamal-encryption elliptic-curve-cryptography encryption-decryption miller-rabin-algorithm network-security
Last synced: 15 May 2026
https://github.com/edgarogh/camerash
Little educational app to create entropy/randomness from a video input
android cryptography educational hash random
Last synced: 07 Jan 2026
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/phayes/decryptpem
Decrypts encrypted PEM files and blocks. Provides (optional) TTY prompt for input for password.
crypto cryptography decrypt dek golang password pem
Last synced: 24 Jan 2026
https://github.com/nobleknightt/gravityfalls
Implementation of Famous Ancient Ciphers and Encryption Techniques
ciphers cryptography morse-code python
Last synced: 14 Dec 2025
https://github.com/taoq-ai/qkd-playground
Interactive web-based Quantum Key Distribution simulator and learning platform. Step through BB84, E91, and B92 protocols, visualize qubit states, and simulate eavesdropping attacks.
bb84 cryptography cybersecurity education interactive qkd quantum-computing quantum-key-distribution quantum-simulation react
Last synced: 13 Apr 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/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/danielost/sha-1
SHA-1 (Secure Hash Algorithm 1) implementation.
cryptography secure-hash-algorithm sha-1
Last synced: 13 May 2025
https://github.com/ardatetikbey/ruby-kriptografi-101
Ruby programlama dilinde şifreleme hakkında doküman
Last synced: 06 Jul 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/enjeck/cryptoalgovisualizer
Visualizations of various cryptography algorithms
algorithms cryptography visualization
Last synced: 24 Oct 2025
https://github.com/embetrix/meta-satobox
Satobox is an open-source, Yocto-based, privacy-focused and secure bitcoin full node solution designed for embedded linux devices.
anonymity bitcoin cryptocurrency cryptography embedded linux raspberry-pi security toronionproxy yocto yocto-layer
Last synced: 01 Nov 2025
https://github.com/amr-yasser226/datagovernanceworkflow
Comprehensive data governance pipeline for SSH honeypot logs—covering data profiling, cleansing, quality assurance, encryption, classification, and GDPR/CCPA/HIPAA compliance. Built with Pandas, Pandera, YData Profiling, and cryptography, with simulated Caesar cipher attacks to demonstrate practical data-security techniques.
caesar-cipher ccpa cryptography cybersecurity data-cleaning data-encryption data-governance data-profiling data-quality data-validation data-visualization gdpr hipaa honeypot-analysis open-source pandas privacy-compliance python ssh-logs
Last synced: 05 Feb 2026
https://github.com/jacob-c-smith/crypto
Cross platform cryptography and hashing functions
Last synced: 04 Mar 2025
https://github.com/volhovm/rsa-zkps-impl
ZK protocols for knowledge and range of Paillier-like ciphertexts in subverted RSA groups
Last synced: 20 May 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/jambolo/bitcoin-keys-demo-cs
Various demonstrations of the derivations and features of Bitcoin keys.
bip32 bip39 bitcoin bitcoin-address cryptography
Last synced: 19 Apr 2026
https://github.com/lancern/enigma
Enigma machine emulator and its crack procedure on modern computers
cryptography enigma enigma-machine rust
Last synced: 28 Mar 2025
https://github.com/magical/skein
The Skein hash function and Threefish block cipher
Last synced: 24 Mar 2025
https://github.com/pkx8326/digital_caesar_cipher_with_python
The Digital Caesar Cipher with Python
caesar-cipher caesar-cipher-algorithm caesar-shift cryptography encryption-decryption python
Last synced: 28 Aug 2025
https://github.com/icostan/cryptos-ruby
Crypto craft your own transactions, atomic-swaps.
atomic-swaps bitcoin crypto cryptography ecdsa elliptic-curves finite-fields learning-by-doing litecoin math ruby
Last synced: 20 Apr 2026
https://github.com/ishan-surana/federanet
Federated Multimodal Cyberattack classification model on social media messages (utilizing blockchain and quantum key cryptography). Blockchain server at https://cyberattack-blockchain.onrender.com/. Model interaction link below.
bb84-protocol blockchain convolutional-neural-networks cryptography federated-learning flask html-css-js information-security machine-learning multimodality natural-language-processing proof-of-authority streamlit zero-knowledge-proof
Last synced: 10 May 2026
https://github.com/pccr10001/cryptoauthlib
Microchip CryptoAuthentication Library
arduino arduino-library atca atecc508a cryptoauthlib cryptography esp32
Last synced: 10 May 2026
https://github.com/sudhanplayz/ecdsa-node
Secure, centralized transfers with Elliptic Curve Signatures.
crypto cryptography ecdsa elliptic-curve-cryptography elliptic-curves security
Last synced: 29 Oct 2025
https://github.com/simplyyan/w7dth
A Go library for easy, fast, lightweight and effective encryption.
criptografia cryptography cryptography-algorithms cryptography-library cryptography-tools decryption encryption framework go golang golang-library lib libraries library w7dth
Last synced: 01 Apr 2025
https://github.com/doublegate/cado-nfs-modern
CADO-NFS (modern): an enhanced modernization + performance fork of CADO-NFS (Number Field Sieve — integer factorization & discrete log) on current toolchains. Adds GPU linear algebra + full vector residency, a GPU ECM pre-factoring front-end, SDE-validated AVX-512 VPCLMULQDQ/IFMA kernels, and Rust orchestration. LGPL-2.1.
cado-nfs cpp cryptography discrete-logarithm factorization hpc integer-factorization modernization-fork nfs number-field-sieve number-theory python
Last synced: 16 Jun 2026
https://github.com/north9-labs/seam
Post-quantum encrypted transport protocol — UDP, multi-stream, built-in FEC, Noise_XX + ML-KEM-768
cryptography forward-error-correction ml-kem networking post-quantum protocol rust udp
Last synced: 11 Jun 2026
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/aeondave/cryptonite-go
Minimal, dependency-free cryptography library in Go
cryptography cypher go purego tiny
Last synced: 16 Jan 2026
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/chainsafe/vdf-js
cryptography javascript verifiable-delay-functions
Last synced: 13 Oct 2025
https://github.com/masajinobe-ef/prsc
🔐Free cross-platform password manager on Flask, Python, SQLite with Cryptography
cross-platform cryptography database flask linux macos password password-manager python security sql sqlite web-development windows
Last synced: 01 Aug 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/samdney/research-sites
List of useful websites for math, algebra, number theory, cryptography, online security and privacy research.
algebra archive computer-science cryptography help latex list math mathematics maths number-theory reprint research tools webiste
Last synced: 22 May 2026
https://github.com/randombit/randomized-montgomery
Expermental implementation of randomized Montgomery exponentiation
Last synced: 25 Mar 2025
https://github.com/vitkarpenko/cryptopals
:anger: Solving the cryptopals crypto challenges in Python for fun and profit!
challenge cryptography cryptopals python
Last synced: 15 May 2025
https://github.com/tuxxy/speck
A no_std implementation of NSA's lightweight blockcipher SPECK
cryptography encryption lightweight-cryptography rust rust-crypto security speck
Last synced: 24 Apr 2025
https://github.com/gitgab19/blockchain-address-list-generation
The focus of this repo is to retrieve the full list of addresses ever appeared into any transactions for some of the most famous blockchains using the secp256k1 curve. These Python scripts have been used for an academic research at Politecnico di Torino. If you want to know more about our paper, you can find it at https://arxiv.org/abs/2206.14107.
bitcoin blockchain cryptocurrency cryptography research research-paper secp256k1
Last synced: 09 May 2026
https://github.com/dabevlohn/wasm-rc-sesskey
Generates random 16 bytes, transforms it to CryptoKey Object, encrypts it for RSA-key issuer
cryptography e2ee keygen rocketchat rsa rust wasm webassembly
Last synced: 25 Apr 2026
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/h0llyw00dzz/fiber2fa
This is a custom 2FA (Two-Factor Authentication) middleware for the Fiber web framework. It provides a secure and easy-to-use solution for implementing 2FA in Fiber applications. The middleware supports TOTP (Time-based One-Time Password) authentication and offers customizable configuration options.
advanced crypto cryptography fiber fiber-framework go golang idiomatic-go two-factor two-factor-authentication twofactor
Last synced: 19 Sep 2025
https://github.com/mdamt/erpiko
Mirror of H. Erpiko
c-plus-plus certificate cryptography digital-signature pkcs pki smime
Last synced: 04 Apr 2025
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/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
