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/fionn/lagrange-polynomial
Numerical Lagrange polynomials over 𝔽ₚ
cryptography lagrange-polynomial-interpolation numerical-methods
Last synced: 13 Jun 2026
https://github.com/panagiotiskots/enigma-machine-simulator
A C-based simulation of the Enigma machine encryption process
c cryptography encryption encryption-algorithms encryption-decryption enigma enigma-machine enigma-simulator history
Last synced: 27 Jun 2025
https://github.com/gonzafg2/quantumssh
Memory-safe, post-quantum-first SSH server in Rust. Open source, no NDAs, no exceptions.
apache-2 cryptography infrastructure memory-safe post-quantum-cryptography rust security ssh
Last synced: 21 May 2026
https://github.com/dyne/clj-openssh-keygen
A platform-independent Clojure library to genereate OpenSSH compliant key-pairs without using ssh-keygen
authentication cryptography keygen keypair ssh ssh-key
Last synced: 07 Mar 2026
https://github.com/abdulbasit110/file-security-software
Python-based file security software that supports AES, RSA, and basic encryption methods for secure file encryption and decryption.
aes-encryption cryptography encryption-decryption python security
Last synced: 15 Jun 2026
https://github.com/casz92/ntru_falcon
NIF C library for Elixir, implementing the post-quantum cryptography algorithm Falcon
cryptography elixir ntru post-quantum-cryptography
Last synced: 16 May 2026
https://github.com/oxarbitrage/salsa20
Attempt to formalize salsa20 in lean
cryptography lean mathlib salsa20
Last synced: 11 Jul 2025
https://github.com/oxarbitrage/hsalsa20
Haskell implementation of the Salsa20 Cipher
cryptography haskell salsa20 stream-cipher
Last synced: 11 Jul 2025
https://github.com/claby2/3color-zkp
🎨 Zero-Knowledge Proof Implementation for Graph 3-Coloring
3color cryptography go graph-theory zkp
Last synced: 06 Apr 2025
https://github.com/towre676-cloud/tau_crystal
Lean 4 CI: 3× faster Mathlib caching (Linux, containerized) with one-file workflow
bash cryptographic-manifests cryptography github-actions github-pages lake lean4 numerical-relativity reproducibility verification
Last synced: 09 Apr 2026
https://github.com/antonkueltz/quicy-py
A UDP-Based Multiplexed and Secure Transport
cryptography python3 quic transport udp
Last synced: 24 Oct 2025
https://github.com/anshuman-singh-93/agrichain-frontend
blockchain cryptocurrency cryptography dapp
Last synced: 05 Oct 2025
https://github.com/sajad-net/cryptoman
most used encryptions in CTFs
atbash ceaser-cipher cryptography ctf encryption-decryption rot13 virgenere
Last synced: 17 Mar 2025
https://github.com/n1ckl0sk0rtge/unlinkablepseudonyms
A java package for using (un)linkable pseudonyms based on RSA.
cryptography encryption gdpr privacy pseudonymisation pseudonymization security
Last synced: 14 Oct 2025
https://github.com/n1ckl0sk0rtge/scrambledb-converter
A REST-Service written with Quarkus for generating and converting unlinkable pseudonyms
cryptography encryption gdpr privacy pseudonymisation pseudonymization scrambledb security
Last synced: 06 Apr 2025
https://github.com/georgiifirsov/bcm-lib
Implementation of some block ciphers modes of operation. This library is written for my research about full disk encryption.
block-cipher-mode block-ciphers cryptography research symmetric-encryption thesis
Last synced: 12 Oct 2025
https://github.com/localnerve/hmac-symmetric
A library for symmetric encryption with hmac digests
bot-mitigation crypto cryptography encryption hmac nodejs symmetric-encryption
Last synced: 12 Apr 2025
https://github.com/ngvuthdanhh/certificate-blockchain-fundamentals-101blockchains
Notes, labs, research, extras, and certificate for the Blockchain Fundamentals program by 101 Blockchains. The project explores blockchain architecture, consensus mechanisms, cryptography, smart contracts, and applications in Web3 security.
101blockchains blockchain cryptography cybersecurity distributed-systems githublearning smart-contracts web3
Last synced: 25 Jan 2026
https://github.com/bradford-smith94/cs579
CS 579 Foundations of Cryptography
Last synced: 22 Mar 2025
https://github.com/ngvuthdanhh/certificate-cryptography-leeds-clickstart-futurelearn
Learning notes, labs, cheatsheets, and certificate for An Introduction to Cryptography by University of Leeds & Click Start on FutureLearn. Covers symmetric/asymmetric encryption, hashing, signatures, and cryptographic protocols.
aes cryptography decryption encryption futurelearn githublearning rsa security university-of-leeds
Last synced: 25 Jan 2026
https://github.com/ngvuthdanhh/certificate-information-security-openlearn
Comprehensive learning repository for the OpenLearn Information Security program, featuring detailed notes, hands-on labs, demos, guides, cheatsheets, case studies, and a certificate of completion. Focuses on network, system, application, and cloud security, covering both attack techniques and defense strategies.
access-control application-security cloud-security cryptography githublearning information-security monitoring system-security
Last synced: 25 Jan 2026
https://github.com/touhidurrr/randomcryp
A cryptographically secure, feature rich, zero dependency, lightweight and browser friendly random number generator library.
browser bun cross-platform crypto cryptography deno friendly generator javascript lightweight nodejs number open-source package random typescript web web-crypto zero-dependency
Last synced: 12 Apr 2025
https://github.com/jhmmax/hashgen
hashgen - the blazingly fast hash generator argon, base58, base64, bcrypt, cyclone, generator, hash, hashcat, hashgen, md5, mdxfind, mosecode, multithreaded, ntlm, sha, sha1, sha256, sha3, threaded, yescrypt
aes alireza argon base64 bcrypt cryptography cryptojs cyclone hash hashgen java javascript md5 mdxfind
Last synced: 07 May 2025
https://github.com/ermingbear/electron-executor-ea
Roblox Electron Executor is one of the most favorite Roblox Executors at the moment. Before I tell you how to download Electron Executor, let me tell you that it is currently available safely for Windows. But it is not officially available for Android users as of now but the update is coming and will be launched soon.
cryptography cybersecurity electron electron-app encryption gpg gpt java llm mobile nodejs offline pgp privacy
Last synced: 07 May 2025
https://github.com/buzzcosm/udemy-course-blockchain-technology-in-java-2-cryptocurrency
Udemy course - Blockchain & Cryptocurrency in Java
blockchain bouncycastle cryptocurrency cryptography java sha-256 udemy-course-project
Last synced: 01 Jul 2025
https://github.com/ratware-official/ratsign
Signs files with an encrypted private key and password, and verifies them using their signature file and a trusted public key or key ID.
cli cryptography csharp dotnet signing
Last synced: 16 May 2026
https://github.com/smartibase/decipher-the-message-and-code-91101
Code 91101 is a mysterious message from the depths of the digital world
crypto cryptography decryption ecc ecdsa ecdsa-cryptography ecdsa-signature ecdsa-signatures ecdsa-signing elliptic-curves elliptic-curves-cryptography encryption hmac private-key public-key-cryptography signatures
Last synced: 01 Mar 2026
https://github.com/luhluh-17/kubli
A Python-based file encryption tool that securely encrypts and decrypts files and directories using Fernet symmetric encryption. Features filename obfuscation, interactive CLI interface, and batch processing capabilities.
Last synced: 23 Jul 2025
https://github.com/sorairolake/camellia-zig
Camellia block cipher written in pure Zig
block-cipher camellia cipher cryptography zig zig-library ziglang
Last synced: 05 Apr 2025
https://github.com/rstacks/ctf-writeups
Contains links to all of my writeup repositories for CTFs that I've participated in.
cryptography ctf ctf-challenges ctf-writeups forensics osint pwn reverse-engineering web-exploitation
Last synced: 07 Apr 2026
https://github.com/haithamaljabbari/crabcrack
CrabCrack is a hash cracking tool written in Rust
cryptography cybersecurity hacking hash hashcracker programming rust
Last synced: 22 Mar 2025
https://github.com/rayniel95/subkey
This is a simple dockerfile for create a docker image with Substrate subkey tool.
blockchain cryptography docker subkey substrate
Last synced: 18 Aug 2025
https://github.com/10d9e/zk-pass
A password authentication service, based on the chaum-pedersen zero-knowledge interactive protocol
chaum-pedersen cryptography rust zero-knowledge
Last synced: 12 Apr 2025
https://github.com/skitsanos/text-into-image
Demonstration of steganography with encoding text into an image
canvas crypto cryptography javascript morse-code morse-encode steganography steganography-algorithms steganography-application steganography-encoding
Last synced: 30 May 2026
https://github.com/natharyan/secret-sharing-arithmetic-functions
Shamir's secret sharing with beaver's multiplication to generate shares of an arbitrary arithmetic function given by the user with two secret values as the variables
cryptography cryptography-project secret-sharing shamir-secret-sharing
Last synced: 22 Mar 2025
https://github.com/samuel-lucas6/utc.net
Bellare and Hoang's UtC and HtE[UtC] transforms using ChaCha20-Poly1305 and BLAKE2b.
aead blake2 blake2b chacha20 chacha20-poly1305 chacha20poly1305 committing-aead crypto cryptography key-committing poly1305
Last synced: 17 Jun 2025
https://github.com/obirikan/caesar-cipher-encoder-decoder
🔐This project implements a modular Caesar cipher for encoding and decoding English alphabetic messages. It's structured in a clean, maintainable folder-based architecture using Python functions and modules.
Last synced: 27 Jun 2025
https://github.com/tiwarishubham635/optimized-aes-visualizer
Optimizes AES Encryption-Decryption Algorithm with SHA-512 and visualizes it
Last synced: 30 Mar 2025
https://github.com/projects-developer/top-40-python-projects-for-beginners-to-advanced
Python is a popular and versatile programming language that is widely used in various industries, including web development, data science, artificial intelligence, and more Top 40 Python Projects. Project Includes Project Includes Source Code, PPT, Synopsis, Report, Documents, Base Research Paper & Video tutorials
bca-project btech-project computer-science-projects computerscienceprojects cryptography final-year-projects finalyearprojects machine-learning malware-detection mca-project mtechprojects python-project python-projects web-development
Last synced: 04 Jan 2026
https://github.com/aswinr24/decypher
Speedy Cipher Decryption / Encryption CLI tool
cli cryptography hacktoberfest python
Last synced: 11 Apr 2025
https://github.com/collapse-logic/collapse
Collapse System Logic — deterministic proof collapse (E→Z→1)
collapse compression cryptography csl determinism formal-methods lean4 logic proof proofs python
Last synced: 14 May 2026
https://github.com/flammafex/prestige
Anonymous verifiable voting — secret ballot, public proof. Cryptographic polls where no one can stuff the ballot and no one knows how you voted.
anonymous-voting blind-signatures cryptography e-voting nodejs polls privacy secret-ballot typescript veribiable voting
Last synced: 11 Jun 2026
https://github.com/albinzayedrawan/classical-ciphers-and-transposition-techniques
Lab Exercises about Classical Ciphers and Transposition Techniques
caesar-cipher cryptanalysis cryptography vigenere-cipher
Last synced: 04 Apr 2025
https://github.com/hpgrahsl/current22-k4k-demo
This repository hosts the live demo scenario shown during my Current22 talk about 'Client-Side Field Level Cryptography for Streaming Data Pipelines'
apachekafka cryptography end-to-end-encryption eventstream-pipeline kafka-connect ksql ksqldb security smt udfs
Last synced: 07 Jun 2026
https://github.com/Cach30verfl0w/Krypton
A modular and extensible Kotlin library suite for Cryptography
algorithms android crypto cryptography encryption ios jvm kotlin kotlin-multiplatform kotlin-native krypton
Last synced: 09 Sep 2025
https://github.com/albinzayedrawan/random-number-generator
Lab exercises to understand the concepts of True Random Number Generators (TRNG) and Pseudo-Random Number Generators (PRNG).
Last synced: 04 Apr 2025
https://github.com/albertshih3/cse-130
Code for labs and homeworks for CSE 130 at UC Merced (Introduction to Cryptography).
Last synced: 27 Jun 2025
https://github.com/tomeffect0613/rsacrack
Obtain the passphrase of a private key (id_rsa), this tool uses the ssh-keygen binary to perform a brute force attack until a successful collision occurs.
bruteforce-attacks c cracking cracking-password cryptography ctf experiments factorisation maths password reverse-engineering rsa rsa-cryptography ssh
Last synced: 11 Apr 2025
https://github.com/kshitiz-mhto/cryptix
Cryptix is a simple CLI utility that leverages hybrid cryptographic architecture bend of AES and RSA key-pair to securely encrypt and decrypt messages.
0auth2 cobra cryptography golang googledriveapi logrus
Last synced: 06 Apr 2025
https://github.com/crosbydoo/laravel-kriptografi
Aplikasi sederhana berbasis web yang dapat upload file pdf dan dapat membaca dan meenkripsi isinya ke dalam bentuk file yang berbeda namun isinya sudah dienkripsi menggunakan AES. framework yang digunakan adalah laravel 10
aes-encryption cryptography decryption encryption kriptografi laravel php
Last synced: 21 May 2026
https://github.com/drylikov/secrets.clj
A library designed to generate cryptographically strong random numbers suitable for managing data such as passwords, account authentication, security tokens, and related secrets.
authentication choice clj clojure cryptography drng jvm password prng random rng secrets secure security timestamp token uuid xkcd
Last synced: 21 May 2026
https://github.com/Crittora/qripton-sdk-js
A secure SDK for data encryption, decryption, and digital signatures using AWS Cognito authentication. Provides enterprise-grade cryptographic operations with simple API integration.
api-client authentication aws-cognito cryptography data-encryption decryption digital-signature encryption enterprise-security node-js npm-package sdk security typescript
Last synced: 04 Apr 2025
https://github.com/sajad-net/passwdb
A secure password manager in python, using AES algorithm to encrypt passwords.
cryptography getpass hash password-manager password-manager-cli pyperclip python python-password-manager sha256 sqlite3
Last synced: 17 Mar 2025
https://github.com/guycole/military-cryptanalytics
Computer applications associated w/the classic "MILCRYP" course by Friedman and Callimahos
Last synced: 15 May 2026
https://github.com/demianparkhomenko/uni-rsa
RSA encryption and decryption of text files. 2 semester
algorithms cipher cryptography rsa
Last synced: 06 Apr 2025
https://github.com/sutterseba/des-python
A simple DES implementation in Python
Last synced: 15 Jun 2026
https://github.com/sgnn7/openssl-fips
OpenSSL FIPS-compliant 140-2 cryptographic module canister for Docker container targets.
containers cryptography docker docker-container encryption fips fips-140-2 fips-build fips140-2 openssl openssl-tools security trusted-execution-environment
Last synced: 16 May 2026
https://github.com/piotrpsz/chacha-go
ChaCha20 algorithm implementation in Go based on RFC 8439
Last synced: 17 May 2025
https://github.com/ppad-tech/aead
Haskell AEAD-ChaCha20-Poly1305
aead chacha20 cryptography haskell poly1305
Last synced: 25 Aug 2025
https://github.com/bromaniac/snuffle
Daniel J Bernstein's crypto system snuffle
Last synced: 27 Mar 2025
https://github.com/m1thrandir225/is-labs
Laboratory Exercises for the Information Security course
algorithms cryptography hashing security swift
Last synced: 16 May 2026
https://github.com/sheroz/crypto_vectors
Cryptography test vectors in Rust
cipher cryptography test test-vectors vector
Last synced: 19 Apr 2026
https://github.com/ketanmehra003/silent-key
A command-line tool designed to provide multi-layered image security by combining advanced encryption (ChaCha20) and custom steganography techniques. This project enables secure image transmission and storage, making it ideal for use cases in defense, privacy protection, and digital content management.
command-line-tool cryptography cybersecurity python3
Last synced: 05 Apr 2025
https://github.com/sv592/secure_file_manager
A lightweight C++ application for secure file encryption, decryption, hashing, and digital signature management.
Last synced: 10 Jun 2026
https://github.com/wesfly/frequency-analyzer
Text analyser
cryptography frequency-analysis frequency-analyzer text text-analysis
Last synced: 04 Apr 2025
https://github.com/jmg-duarte/rot
🔪 Caesar Cipher CLI Tool 🔏
caesar-cipher cipher cryptography rot rot13 rotation rust
Last synced: 20 Mar 2025
https://github.com/shamikaredkar/secure-password-manager
The "Secure Password Manager" is a Python-based tool for securely storing and managing passwords locally. Utilizing advanced encryption provided by the cryptography library, it offers a simple CLI for easy and safe password handling. Ideal for educational purposes or personal use, it ensures your sensitive information remains secure on your device.
command-line cryptography fernet fernet-cryptography fernet-decryption fernet-encryption fernet-key password-manager python
Last synced: 12 May 2026
https://github.com/narukoshin/yako
Password manager that works on my rules.
cryptography enryption go golang password-manager privacy security
Last synced: 11 Jun 2026
https://github.com/mrtimu139/non-transitive-dice-game-hmac
A console-based implementation of a Generalized Non-Transitive Dice Game with HMAC verification. Supports configurable dice, fairness in random number generation, and enhanced usability features like detailed help tables.
cryptography cryptography-library dice-probability game-theory hmac javascript non-transitive-dice secure-random-number-generation verification
Last synced: 20 Mar 2025
https://github.com/sajad-net/pysafe
Encrypting files with AES algorithm.
aes aes-encryption aes-file-encryptor cryptography encryption-decryption-tool file-encryption gui-file-encryptor python python3
Last synced: 20 Aug 2025
https://github.com/pymarcus/go_pemkeycertificate
Create a SSL certificate to test and local web development.
cryptography golang ssl-certificates
Last synced: 15 Sep 2025
https://github.com/vertigovx/crypto-wallet-generator
A Python-based tool to generate and manage cryptocurrency wallets for Ethereum and Bitcoin, featuring a GUI, encryption, and decryption capabilities.
bitcoin crypto-wallet cryptocurrency cryptography ethereum python3
Last synced: 08 May 2026
https://github.com/25a0/sts-sphincs
SPHINCS, the hash-based signature scheme, with fast batch signatures
cryptography digital-signature hash-based-signatures post-quantum-cryptography
Last synced: 22 Mar 2025
https://github.com/25a0/authentication-sets
Code and statistics related to authentication sets.
cryptography merkle-hash-trees
Last synced: 22 Mar 2025
https://github.com/hayr-hotoca/react-native-key-generator
256-bit encryption, cipher key generator - native implementation.
256-bit android cipher cross-platform cryptography encryption ios javascript key react react-native typescript
Last synced: 08 Apr 2026
https://github.com/ecsolticia/caeser-cipher-matlab
Caeser Cipher encryption and decryption scripts with a right shift of 2. Written in MATLAB. (WIP)
caeser-cipher cryptography cryptography-algorithms matlab matlab-script modular-arithmetic
Last synced: 18 Mar 2025
https://github.com/lucianoscarpaci/cipher
Unlock the world of clandestine communication with Python's XOR cipher, enabling the concealment and revelation of messages through sophisticated encryption and decryption techniques.
algorithm-implementation cryptography data-security encryption-decryption information-hiding python secure-communication software-development symmetric-key-cryptography xor-cipher
Last synced: 20 Mar 2025
https://github.com/shishirjindal/cryptopals
Matasano's Crypto Challenges in Python
cryptography matasano-cryptopals-challenges python
Last synced: 24 Feb 2025
https://github.com/bouchraakl/java_implementation_of_rsa_encryption_and_decryption_algorithm
This repository contains a Java implementation of the RSA encryption and decryption algorithm using the Java cryptography libraries.
cryptography java rsa-algorithm rsa-cryptography rsa-encryption
Last synced: 14 Mar 2025
https://github.com/romanpecheritsa/onetimesecretapi
This project implements a service for securely storing and sharing one-time secrets (FastAPI, MongoDB)
authx cryptography docker-compose fastapi mongodb motor pytest python
Last synced: 28 Apr 2026
https://github.com/michaeltennyson/advanced-security
The following repository contains programs completed for the advanced security Module
cipher cipher-algorithms cryptography java security
Last synced: 05 Mar 2025
https://github.com/toshydev/ceasar
A Ceasar cipher ROT13 tool
ceasar-cipher cryptography python python-script python3 rot13 security tools
Last synced: 15 Jun 2026
https://github.com/mrd33t/sunburst-dga-cipher
A Python implementation of the SUNBURST DGA Cipher for encoding and decoding messages. This tool demonstrates substitution cipher techniques and secure coding practices.
cipher cryptography dga portfolio python security sunburst
Last synced: 26 Mar 2025
https://github.com/lucianoscarpaci/ctf-challenge-capture_us_xor
Enhance cybersecurity defenses with a specialized solution tackling a Capture the Flag challenge involving decryption of an encrypted message with a 2-bit key length using a C++ brute-force method.
brute-force-attack capture-the-flag cryptography cybersecurity decryption-tool encryption-decryption ethical-hacking problem-solving-algorithms software-security xor-cipher
Last synced: 20 Mar 2025
https://github.com/s-celles/classicciphers.jl
ClassicCiphers.jl is a Julia package that implements various classical cryptographic ciphers.
Last synced: 03 Feb 2026
https://github.com/n3m0n8/cybersec-tools
Assortment of tools/programmes related to networking and cybersec with copious notes as I work through the example programmes
cryptography cyber cybersecurity encryption packet-sniffer remote
Last synced: 03 Apr 2025
https://github.com/iosmanthus/homqv-go
One-Pass HMQV and Asymmetric Key-Wrapping https://eprint.iacr.org/2010/638.pdf
Last synced: 05 Mar 2025
https://github.com/stefandeml/snark-verifier
web-frontent for zkSNARKS on Ethereum based on ZoKrates
cryptography ethereum zksnarks
Last synced: 14 May 2025
https://github.com/ergus/cryptography-rust-cpp
A simple crate with some cryptographic functions implemented in C++ AND Rust like mirror code.
cpp cryptography inter-language learning rust testing
Last synced: 15 Sep 2025
https://github.com/mghorbani2357/necrypt
Necrypt uses AES and RSA to present strong encryption method. It generates new cipher for each encryption with the same RSA and AES key.
aes cryptography encryption-decryption file-encryption python python3 rsa
Last synced: 26 Jul 2025
https://github.com/zemse/isik-crypto
crypto cryptography cryptology isi-kolkata rust-lang
Last synced: 03 Apr 2025
https://github.com/vermillionpaws/genpasswd
Cryptographically secure password generator using libsodium
clang cryptography password-generator security-tools sodium
Last synced: 05 May 2025
https://github.com/affinidi/affinidi-zkp-crypto-rs
A Rust library provides circom ecosystem compatible BabyJubJub EdDSA sign/verify primitives and Poseidon hashing with exports, for mobile integrations
affinidi cryptography trust zkp
Last synced: 16 May 2026
https://github.com/sap/sprint
SPRINT is a scalable framework for differentially private (DP) fine-tuning and inference via multiparty computation (MPC) of transformer-based models. SPRINT is built on top of PyTorch, Opacus for DP fine-tuning and CrypTen for MPC inference.
cryptography differential-privacy fine-tuning multiparty-computation secure-inference transformers
Last synced: 16 May 2026
