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: 2026-06-30 00:07:03 UTC
- JSON Representation
https://github.com/loneicewolf/ciphers-python
Cypher, Cipher, Cyphers, Ciphers, cryptography, encryption, obfuscation, enciphering, deciphering - in python3
alphabet cipher cryptography encryption jupyter-notebooks python substitution-cipher
Last synced: 23 Apr 2025
https://github.com/eqoty-labs/kryptools
Kotlin multiplatorm crypto tools: AES-SIV, Axlsign, AES256-GCM, Bech32, Secp256k1
crypto cryptography kotlin kotlin-android kotlin-js kotlin-jvm kotlin-library kotlin-multiplatform kotlin-native
Last synced: 02 Feb 2026
https://github.com/salvacorts/fr-chat-client
:rocket: P2P Chat with asymmetric encryption
asymmetric-cryptography cryptography p2p-chat python rest-api rsa sockets tkinter
Last synced: 15 Mar 2025
https://github.com/pirate-emperor/cipherx
CipherX is a verification project for Advanced Encryption Standard (AES-128) using Universal Verification Methodology (UVM). It leverages Verilog, SystemVerilog, and Python to ensure robust encryption algorithm validation, integrating comprehensive UVM components and tests.
aes-128 cryptography cryptography-algorithms dataencryption dataencryptionstandards digitaldesign encrytption hardwareverification python security testing-framework uvm verification verilog
Last synced: 26 Jan 2026
https://github.com/jahlives/openssl_encrypt
Post-quantum hybrid encryption with chained KDF architecture. Supports ML-KEM, Kyber, Argon2, Balloon, RandomX. CLI + GUI included.
cryptography encryption hash-chaining kdf-chaining post-quantum python security steganography
Last synced: 01 Apr 2026
https://github.com/yashraj-n/legitly
A simple PDF Signing and verifying website. Made in Next.js
authentication cryptography pdf verification web3
Last synced: 23 Jun 2026
https://github.com/moeraorg/java-moeralib
Java library to interact with Moera decentralized social network
cryptography decentralized java java-library library maven moera social-network
Last synced: 23 Feb 2026
https://github.com/danieltoader/php-crypttor
A simple php library to deal with encrypting and decrypting strings using OpenSSL or MCrypt
crypt cryptography decrypt encrypt mcrypt openssl php-crypt php-library
Last synced: 01 Sep 2025
https://github.com/hmasila/crypto-php
crypto cryptocurrencies cryptocurrency cryptocurrency-exchanges cryptography
Last synced: 13 Oct 2025
https://github.com/mohitrajain/rootctf
CTF ( Capture the flag a cyber security event ) .
cryptography ctf forensics pwning reverse-engineering steganography system-administration web-exploitation
Last synced: 13 Oct 2025
https://github.com/tacitusxi/leskodex
LeskoDEX is a DEX with a decentralized orderbook and a custom ERC-20 ESKO token. Each user can connect to the DEX via Metamask and trade the ETH/ESKO pair. A custom chart for technical analysis is available.
crypto cryptocurrency cryptocurrency-exchanges cryptography currency dapp defi erc-20 eth ethereum smart-contracts solidity solidity-dapps solidity-language token
Last synced: 26 Oct 2025
https://github.com/proafxin/lattices
This is the lecture series on Lattices given by Oded Regev.
cryptography lattice mathematics
Last synced: 06 Mar 2026
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/miguelzacca/vigenere-encoder
Vigenere cipher encoder/decoder. (npm package)
cipher crypto cryptography decode encode encoder npm npm-module npm-package package vigenere vigenere-cipher
Last synced: 15 Feb 2026
https://github.com/jitendragangwar123/ekolance-solidity-cohort-2
This repository contains Solidity programming exercises that were discussed during the Ekolance Solidity Cohort 2. It serves as a resource for learning and practicing Solidity, a programming language used for developing smart contracts on blockchain platforms like Ethereum.
blockhain-tecnology cryptography ethereum solidity
Last synced: 07 Jan 2026
https://github.com/harryr/stegive
Steganographic encrypted archive
archive cryptography encryption steganography
Last synced: 27 Oct 2025
https://github.com/pastesafe/pastesafe.github.io
instant web cryptography. encrypt in realtime as you type. share and decrypt ciphertext.
Last synced: 10 Mar 2026
https://github.com/gerhalt/cryptopals
Solutions to Cryptopals challenges in Python 3. Visit https://cryptopals.com/ for the complete list of challenges.
aes-encryption cbc-mode challenges crypto cryptography diffie-hellman dsa dsa-algorithm ecb-mode puzzles python python3 rsa rsa-algorithm solutions
Last synced: 13 May 2026
https://github.com/kpdemetriou/spectral-aead
An algorithm for authenticated encryption with associated data using Speck and HMAC-SHA256.
cffi cipher ciphers cryptography decryption encryption hash hash-functions hmac message-authentication-code python sha256 speck
Last synced: 14 Jan 2026
https://github.com/romainbou/ise2ee
Is it End-to-end Encrypted?
cryptography encryption messaging
Last synced: 14 Oct 2025
https://github.com/just-do-halee/vep
Variable-length Expansion Pass function. ( i.e. short password to long hashed password )
algorithms cryptography expansion hash no-std password
Last synced: 10 Jun 2025
https://github.com/michpro/xtea-cipher
XTEA cipher library, with MAC support, for the Arduino environment.
arduino arduino-library cipher cipher-algorithms cryptography cryptography-library decryption encryption hash iot mac message-authentication-code xtea-cipher
Last synced: 17 Apr 2026
https://github.com/pmuens/time-lock-puzzle
Time-Lock Puzzle schemes implemented in Go and compiled to WebAssembly
cryptography encryption homomorphic-encryption homomorphic-time-lock-puzzle time-lock time-lock-puzzle
Last synced: 15 May 2025
https://github.com/mrdcvlsc/password-manager
A simple online password manager web application with demo deployed in render.com
aes better-sqlite3 cipher confidentiality cryptography css data-protection decryption encryption fastify full-stack html javascript nodejs online password-manager password-vault sqlite3 web-application
Last synced: 15 Apr 2025
https://github.com/antosser/base94-rs
Base94 Encoding Library: Convert binary data to a compact text-based format using Base94 encoding. Effortlessly encode and decode data for a wide range of use cases. 🔐🔍
algorithm base94 binary-to-text cryptography development encoding rust rust-library security text-format utility
Last synced: 24 Oct 2025
https://github.com/dsprenkels/sss-swift
Swift bindings for my Shamir secret sharing library
cryptography shamir-secret-sharing
Last synced: 12 Jul 2025
https://github.com/volhovm/ocd-tasks
Solutions for the "An Introduction to Mathematical Cryptography" textbook by Hoffstein, Pipher, Silverman
Last synced: 16 Oct 2025
https://github.com/virgilsecurity/virgil-ratchet-x
Virgil Security Ratchet Objective-C/Swift SDK provides an implementation of the Double Ratchet algorithm, which is used by parties to exchange encrypted messages based on a shared secret key.
cryptography doubleratchet encryption perfect-forward-secrecy pfs ratchet
Last synced: 14 Jun 2025
https://github.com/lvmalware/lvha256
The LV Hash Algorithm - my own cryptographic hashing algorithm
a algorithm crypto cryptographic cryptographic-hash-functions cryptographic-hashing-algorithms cryptography hash hashing implementation security
Last synced: 31 Mar 2025
https://github.com/mashatan/go-cryptoconditions
Crypto-Conditions in Go
cryptoconditions cryptography golang-package
Last synced: 14 Jan 2026
https://github.com/hayr-hotoca/react-native-chacha20-poly1305
ChaCha20-Poly1305 encryption/decryption for React Native. Native implementations make sure it has the fastest performance.
256-bit aes android chacha20 chacha20-poly1305 chacha20poly1305 cipher cipher-algorithms cross-platform cryptography encryption encryption-algorithms ios javascript react react-native reactjs typescript
Last synced: 07 Oct 2025
https://github.com/newyaroslav/crypto-json
C ++ library for JSON encryption with COMMENTS
cryptography json json-parser strip-json-comments
Last synced: 15 May 2026
https://github.com/crnobog69/polychaos
PolyChaos 🔐 | систем шифровања - encryption system
cryptography encryption encryption-decryption python secure security security-tools simple simple-app simple-project
Last synced: 06 Feb 2026
https://github.com/lssandes/crypto-app
blockchain crypto cryptocurrency cryptography cryptorank rapidapi react
Last synced: 11 Feb 2026
https://github.com/leo-aa88/bitcoin-cryptography-ecc
Study of bitcoin elliptic curve cryptography (ECC)
bitcoin cryptography ecc-cryptography elliptic-curve-cryptography
Last synced: 10 May 2026
https://github.com/blagojeblagojevic/sha256
SHA256 as a header library
c cryptography header-only sha2 sha256 sha256-hash
Last synced: 14 Jun 2025
https://github.com/ironcorelabs/tenant-security-client-php
Client for the Tenant Security Proxy in PHP
application-layer-encryption byok cmk cryptography encryption php
Last synced: 02 Jul 2025
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/r1b/cryptography
Self-study in cryptosystems
block-ciphers cryptography key-exchange-algorithms rust stream-ciphers
Last synced: 08 Apr 2025
https://github.com/trailofbits/rfc8785.py
A pure-Python implementation of RFC8785 (JSON Canonicalization Scheme)
canonicalization cryptography json python serialization
Last synced: 15 Apr 2025
https://github.com/dinochiesa/apigee-custompolicy-rsacrypto
This is a custom Apigee policy, implemented in Java, that performs RSA Encryption and Decryption of data or message payloads, or RSA signing of data or message payloads, or verification of such signatures.
Last synced: 10 Jun 2025
https://github.com/angelobattaglia/gematro
A cryptographic calculator (Written by Saun Virroco)
Last synced: 08 Jun 2026
https://github.com/gotz1480/cryptography
Cryptography projects and algorithms in Python
cryptography cryptography-algorithms cryptography-library python python-cryptography python3
Last synced: 07 Apr 2025
https://github.com/oliverbutler/steggy
Written in Rust, features a simple cli and a client-side webapp
cli cryptography rust steganography
Last synced: 12 Mar 2026
https://github.com/buhman/cryptio
file-like interface for authenticated encryption
aes-gcm authenticated-encryption cryptography encryption-library
Last synced: 18 Aug 2025
https://github.com/cizr/hill-adn-cryptography-bridging-classical-ciphers-with-dna-based-encryption
The Hill-ADN Cryptography project combines Hill cipher methods with DNA encryption, offering a novel approach for improved data security. It includes binary to DNA conversion, amino acid translation, and Hill cipher encryption, with the decryption process addressing genetic code ambiguity challenges.
bioinformatics cryptography data-security dna encryption-decryption genetic-algorithms genetic-code hill-cipher
Last synced: 07 Oct 2025
https://github.com/chase-moskal/pastesafe
open encryption web app
asymmetric-encryption crypto cryptography
Last synced: 17 Aug 2025
https://github.com/nexenio/rxkeystore
RxJava wrapper for the Android keystore and cryptography utilities
android android-library cryptography rxjava
Last synced: 19 May 2026
https://github.com/samuelschlesinger/blake3-lamport-signatures
An implementation of Lamport/Merkle signatures in Rust using the BLAKE3 hash function.
cli cryptography lamport-signature-scheme merkle-signature-scheme rust rust-lang signature
Last synced: 18 Mar 2025
https://github.com/pandh4cker/encode-decode-morse-code
Encode&Decode Morse Code
binary-search-tree binary-search-trees binary-tree binary-trees c cryptography morse morse-code morse-codes morsecode morsedecode recursion recursive recursive-algorithm sdl2 sdl2-image sdl2-library sdl2-ttf
Last synced: 25 May 2026
https://github.com/thomasdesr/minisign-action
Github action to sign and verify minisign/signify signatures
crypto cryptography github-actions gpg minisign pgp signify
Last synced: 05 Jan 2026
https://github.com/outspace/bachelor_thesis
My bachelor thesis
cryptography differential-cryptanalysis dstu7624
Last synced: 18 Mar 2026
https://github.com/idriz4work/htb
Hack The Box (HTB) is an online platform for practicing ethical hacking and cybersecurity skills through real-world challenges and virtual labs.
active-directory cryptography enumeration exploitation forensics network-security privilege-escalation reverse-engineering steganography web-security
Last synced: 18 Feb 2026
https://github.com/frankmike/bitcoin-from-scratch
A study on Bitcoin main components
bitcoin bitcoin-payment bitcoin-transaction blockchain cryptography mathematics
Last synced: 13 Feb 2026
https://github.com/fionn/secret-sharing
Shamir's secret sharing
cryptography multi-party-computation shamir-secret-sharing threshold-cryptography
Last synced: 07 Jun 2026
https://github.com/rzubek/easy-cryptography
Easy, simple C# API for common cryptography operations. Wraps built-in .NET crypto libraries, but with simplified API using safe defaults. Single C# file, no extra dependencies.
crypto cryptography csharp csharp-library dotnet dotnet-core dotnet-standard dotnetcore encryption security
Last synced: 14 May 2026
https://github.com/gotz1480/bitcoin-cryptography-ecc
Study of bitcoin elliptic curve cryptography (ECC)
bitcoin cryptography ecc-cryptography elliptic-curve-cryptography
Last synced: 07 Apr 2025
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/marcode24/criptografia-rsa
🔐 This is a cryptography project testing, using RSA criptography
cryptography css html html-css-javascript html5-css3 javascript multer nodejs rsa rsa-cryptography
Last synced: 11 Apr 2026
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/alvarogarciapiz/pycipherhub
Conjunto de cifradores desarrollados en Python
cifrador criptografia-basica cryptography cypher python
Last synced: 15 Mar 2025
https://github.com/defeo/hdr
My habilitation thesis
computer-algebra cryptography elliptic-curves finite-fields isogenies number-theory post-quantum-cryptography
Last synced: 19 Mar 2026
https://github.com/dorssel/dotnet-xmss
.NET 8 implementation of XMSS.
cryptography dotnet nist-sp-800-208 post-quantum-signature rfc-8391 xmss
Last synced: 09 Apr 2025
https://github.com/jhnwnstd/suxotin
Python script that distinguishes vowels from consonants using Suxotin's algorithm.
cryptography decipherment suxotin
Last synced: 31 May 2026
https://github.com/nning/vigenere_jorin
Quick POC of an idea for a Vigenere variant, my 6 year old son inspired
Last synced: 22 Jul 2025
https://github.com/i-umairkhan/ecdsa_node
Transactions via ECDSA cryptography algorithm.
cryptography ecdsa-cryptography express javascript nodejs react
Last synced: 14 Apr 2026
https://github.com/belajarqywok/strmc
Credentials Management Tool Using Stream Cipher Algorithm.
clang cryptography cybersecurity llvm rc4-algorithm stream-cipher
Last synced: 07 Feb 2026
https://github.com/schultz-is/go-threefish
An implementation of the Threefish block cipher entirely in go with no external dependencies.
block-cipher block-ciphers crypto cryptography threefish
Last synced: 15 Apr 2026
https://github.com/filiprokita/bcrack
BCrack is a basic tool designed to crack Bcrypt hashed passwords using brute-force methods. Written in C, it highlights the importance of strong passwords and the effectiveness of Bcrypt for password hashing. Ideal for educational purposes and ethical security testing with permission.
bcrypt bruteforce c cli command-line crypt cryptography cybersecurity decryption encryption file-handling hacking hash-comparison hash-cracking password-cracking security wordlist
Last synced: 11 Feb 2026
https://github.com/alexgustafsson/practical-factorization-comparison
A Practical Study and Comparison of Integer Factorization Methods
bth cryptography elliptic-curve-factorization factorization fermat-factorization integer-factorization mathematics paper pollard-rho-algorithm quadratic-sieve study trial-division
Last synced: 19 Mar 2026
https://github.com/shreyansh26/secure-voting-application
Secure Voting Protocols using RSA
cryptography rsa secure-voting voting-system
Last synced: 22 Jun 2026
https://github.com/mrcarb0n/zipsignerust
High-performance, memory-safe cryptographic signing and verification for Android ZIP archives.
android apk cryptography jar rust signing tool verification zip
Last synced: 24 May 2026
https://github.com/ryanoutcome20/cryptify
A WinForms based file Encryption system.
aes cryptography csharp des filesystem tools tripledes windows windows-forms
Last synced: 25 Feb 2026
https://github.com/guillaumebouchetepitech/wasm-cryptopp-as-module
Basic WebAssembly port of the open source cryptography library libCrypto++
browser cpp17 cryptography javascript nodejs typescript wasm webassembly
Last synced: 11 Apr 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/cupcakearmy/occulto
Isomorphic encryption library that works both in the browser and node.
aes crypto crypto-library cryptography easy-to-use hash high-level node node-crypto typescript
Last synced: 15 Apr 2025
https://github.com/dev-sire/algopython
This repository serves as a comprehensive collection of Python code related to data structures, algorithms, and cryptography. It includes solutions to daily LeetCode problems and various cryptographic implementations
cryptography dsa-algorithm leetcode-python python3
Last synced: 10 Apr 2025
https://github.com/spiretechnology/go-jwt
JSON Web Token library in Go
authentication cryptography jwt sessions verification
Last synced: 31 Jan 2026
https://github.com/b0oml/monoalphabetic-solver
Web interface for performing monoalphabetic substitution
cryptography substitution-cipher webapp
Last synced: 10 Feb 2026
https://github.com/cosmian/cloudproof_flutter
The Flutter API library to Cosmian Cloudproof Encryption
android cloud cloudproof cryptography dart flutter ios
Last synced: 01 Mar 2026
https://github.com/lmriccardo/needham-schroeder-verification
Project for the Formal Methods In Software Development course at the University of "La Sapienza" in Master in Computer Science A.A. 2021/2022
cryptography murphi needham-schroeder nusmv-model-checker spin verification
Last synced: 23 Aug 2025
https://github.com/uncomputable/tackling-bulletproofs
In-depth survey into what Bulletproofs are and how they work
cryptography learning mathematics pdf tutorial zero-knowledge-proof
Last synced: 19 Mar 2026
https://github.com/cfcs/ocaml-poly1305
MirageOS-friendly bindings to Poly1305 C-stubs from WireGuard
cryptography mirageos ocaml poly1305
Last synced: 17 Apr 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/asc8384/neural-distinguishers
Neural Distinguishers on TinyJAMBU-128 and GIFT-64
crypto cryptography deep-learning gift tinyjambu
Last synced: 07 Apr 2025
https://github.com/daniel-boll/zealot
Be Hideous Before Zeal Cease Zealotry.
cryptography decryption encryption study study-group study-project
Last synced: 10 Oct 2025
https://github.com/vaithak/birthday-paradox-simulation
A simulator of the birthday paradox problem
birthday-paradox cplusplus cryptography gnuplot graph paradox probability simulator vaithak
Last synced: 19 Oct 2025
https://github.com/rahmatagungj/toke
TOKE (Two Original Key Encryption) is a security method through encryption of data in the form of numbers and characters, this system uses a mathematical algorithm that can be used to secure certain messages. This service can convert ordinary messages in human language and files into more secure data.
algorithms cryptography decryption encryption
Last synced: 25 Feb 2026
https://github.com/kareemmoneeam/fota
This repository hosts the Firmware Over-The-Air (FOTA) system developed as part of a graduation project at Cairo University. The FOTA system enables secure, efficient, remote updates for embedded systems in smart vehicles, enhancing functionality, safety, and user experience, with strong automotive cybersecurity measures.
aes-encryption bootloader cryptography django embedded embedded-c embedded-systems esp32 firmware firmware-over-the-air graduation-project hc05-module mobileapp secureboot stm32
Last synced: 31 Jan 2026
https://github.com/aadityaa2606/cryptography-and-network-security
Contains multiple cryptographic encryption algorithms with TCP client server model
client-server cryptography encryption-algorithms encryption-decryption
Last synced: 29 Oct 2025
https://github.com/smaranjitghose/pyconfidentiality
Adding secrecy to your emails with RSA
cryptography email-sender python rsa smtp
Last synced: 03 Sep 2025
https://github.com/thotypous/keccak-bsv
Bluespec SystemVerilog implementation of the Keccak primitive (SHA-3)
bluespec cryptography hardware-designs keccak sha3
Last synced: 19 Mar 2026
https://github.com/scar26/votesec.io
An automated voting platform based on Azure Blockchain that offers complete anonymity, instantaneous results and a plethora of other features
blockchain cosmosdb cryptography iot node-chakra solidity truffle
Last synced: 03 Mar 2026
https://github.com/saahen-sriyan-mishra/camouflage-shield
A full stack windows form application for sensitive image storing in encrypted format using symmetric key cryptography, and user data storing/securing using hash algorithms.
3des-encryption aes-encryption base64-encoding cryptography csharp cybersecurity des-encryption-decryption encryption hashing-passwords image-processing md5-hash rc2-encryption rijndael-algorithm sha1-hash sha256-hash sha384-hash sha512-hash windows-form-application
Last synced: 07 May 2025
