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: 2026-06-29 00:07:02 UTC
- JSON Representation
https://github.com/ivanstambuk/openauth-sim
Authentication protocol simulator in Java 17 covering OATH HOTP/TOTP/OCRA, FIDO2/WebAuthn, EMV/CAP, and EUDI wallet/OpenID4VP
authentication cap cryptography emv eudi-wallet fido2 java oath ocra otp simulator webauthn
Last synced: 14 Jan 2026
https://github.com/edycutjong/silo
🛡️ Zero-knowledge whistleblower drop shielding source identity inside secure enclaves.
cryptography express intel-tdx nextjs privacy tee verifiable-credentials whistleblower
Last synced: 21 Jun 2026
https://github.com/trinetra110/stegoaes
A Python-based steganography tool that hides AES-encrypted messages in images using the Least Significant Bit (LSB) technique. Supports secure encoding and decoding with OpenCV and PyCryptodome.
Last synced: 01 Sep 2025
https://github.com/kyrylr/distributedlab
Solutions to the exercises of the Distributed Lab
Last synced: 07 Apr 2025
https://github.com/k2/stylometrics
Stylometric Stenography LLM Generation Attribution DRM/DLP
content-attribution content-security content-verification cryptography data-embedding data-loss-prevention digital-rights-management digital-watermarking fingerprinting information-security linguistic-steganography metadata plausible-deniability steganography structural-encoding stylometry text-analysis typescript zero-width-characters
Last synced: 09 Apr 2025
https://github.com/ocdbytes/giftlist-merkletrees
Alchemy University : Week 2 challenge
blockchain cryptography merkle-proof
Last synced: 11 Apr 2026
https://github.com/egorgvo/sberbank_callback_async_cryptography
Python implementation of Sberbank signature verification using async cryptography
cryptography sberbank signature-verification
Last synced: 11 Mar 2026
https://github.com/rayniel95/ecdsa-node
My solution to week 1 project of Alchemy University.
alchemy-university blockchain cryptography docker express nextjs react reactjs web3
Last synced: 11 Apr 2026
https://github.com/rayniel95/giftlist
My solution to week 2 project of Alchemy University.
alchemy-university blockchain cryptography docker express nextjs react reactjs web3
Last synced: 06 Mar 2025
https://github.com/ianacaburian/generate-key-file
Ports juce_KeyGeneration::generateKeyFile() to node.
auth cmake cpp20 cryptography juce keyfile nodejs npm rsa typescript
Last synced: 15 Mar 2025
https://github.com/ikcede/js-one-time-pad
A simple one-time pad class built in Javascript
crypto cryptography javascript
Last synced: 29 May 2026
https://github.com/tuokri/rs2-misc-tools-notes
Various RS2 modding related notes and code snippets.
cryptography reverse-engineering rising-storm-2-vietnam
Last synced: 18 Jan 2026
https://github.com/zhongruoyu/sha2
An implementation of the SHA-2 hash algorithms.
cryptography hash sha256 sha512
Last synced: 18 Jun 2026
https://github.com/karlbateman/praetorian
A simple cryptographic key management service.
aes aes-256 aes-encryption compliance cryptography decryption encryption encryption-as-a-service gdpr-compliant golang key-rotation keyring
Last synced: 13 Jun 2025
https://github.com/alok-38/software-engineering-specialization
Explore a Career as a Software Engineer. Learn the basics of programming and software development
algorithms cryptography data-structures hashtable html-css-javascript java problem-solving
Last synced: 25 Mar 2025
https://github.com/rmnblm/papers
📄 Published papers.
blockchain cryptography distributed-systems paper science-research
Last synced: 04 Jan 2026
https://github.com/darkzarich/local-encrypt-tool
Node.js utility for encrypting and decrypting sensitive data locally. Uses AES-256-GCM encryption with a key derived from your provided password using PBKDF2.
Last synced: 12 Apr 2026
https://github.com/nikhilr612/isaacrs
No-std implementation of ISAAC PRNG
cryptography isaac isaac-64 no-std random-number-generator
Last synced: 03 Apr 2025
https://github.com/mfridman/cryptopals
My solutions for http://cryptopals.com, written entirely in Go, sprinkled with concurrency
cryptography cryptopals go golang
Last synced: 16 Mar 2025
https://github.com/stackoverflowexcept1on/frost-patches
Patches for ZcashFoundation/frost repository
cryptography elliptic-curves patches rust schnorr schnorr-signatures threshold-cryptography
Last synced: 18 Apr 2026
https://github.com/prasunchakra/EncipherX
A simple Django-based Caesar Cipher application demonstrating basic text encryption and decryption. Currently for learning fundamental cryptographic concepts, experimenting with shift-based ciphers, and later on building upon for more advanced encryption methods.
cipher cryptography django python
Last synced: 16 Sep 2025
https://github.com/abhishekjain12/string-cryptography-method-1
Key Method using JAVA
Last synced: 23 Mar 2025
https://github.com/abhishekjain12/string-cryptography-with-3-different-methods.
1. PitLatin code language 2. Reverse PitLatin code language 3. Key Method
cryptography java string-cryptography
Last synced: 23 Mar 2025
https://github.com/daimdn/cryptography-messageencryption
Brief tutorial of Cryptography. Based on previous solutions. Can be used along for sending messages
Last synced: 06 Sep 2025
https://github.com/scarlet-oni/ransomware
A simple ransomware program that encrypts just one file
cryptography cyber-security cybersecurity openssl python python3 ransomware
Last synced: 15 Jun 2025
https://github.com/danielost/sp-box
S-box/p-box implementation
block-ciphers cryptography p-box s-box
Last synced: 12 Jul 2025
https://github.com/purrproof/merkle-proof-vis
A tool to visualize Merkle trees, generate multi-proofs, and demonstrate the proof application process.
blockchain cryptography ethereum merkle merkle-proof merkle-tree merkletree visualization vizualisation
Last synced: 19 Apr 2026
https://github.com/arpit-omprakash/cryptex-tools
An educational cryptography toolkit written in Python, designed for learners and hobbyists. It demonstrates classical ciphers, basic cryptanalysis tools, and allows users to experiment with encryption and decryption via a simple command-line interface (CLI).
cipher-algorithms cryptography encryption-decryption python
Last synced: 13 Jun 2025
https://github.com/vobst/ctf-hireme
Solution for NERD's HireMe.c challenge.
cryptography ctf-writeups interview-questions nintendo reverse-engineering
Last synced: 30 Jun 2025
https://github.com/projects-developer/steganography-projects
This project aims to design and develop a steganography system that enables secure and covert communication. Steganography Project Project Includes Project Includes Source Code, PPT, Synopsis, Report, Documents, Base Research Paper & Video tutorials
btechprojects computer-sceience-projects computerscienceprojects covertcommunication cryptography datasecurity final-year-projects finalyearprojects imageprocessing informationhiding mtechprojects securecommunication steganography textanalysis
Last synced: 04 Jan 2026
https://github.com/AravindanAppu/Notcoin-crypto-bot
airdrop-notcoin bitcoin btc crypto cryptocurrencies cryptocurrency cryptography ethereum getgems nft notcoin notcoin-airdrop notcoin-bot notcoin-bot-2024 notcoin-guide notcoin-strategy notcoin-telegram notcoin-token ton toncoin
Last synced: 11 Mar 2025
https://github.com/xandersteyn/rsa-timing-attack
A Python script demonstrating a timing attack on RSA decryption, recovering private key bits by analyzing execution time differences.
cryptographic-analysis cryptographic-attacks cryptography cybersecurity encryption ethical-hacking key-recovery multiprocessing penetration-testing python rsa rsa-key-attack security-research timing-attacks
Last synced: 16 Mar 2025
https://github.com/bi-zone/ctfzone-2020-finals-littleknowledge
CTFZone 2020 Finals Crypto task LittleKnowledge
c cryptography ctf ctf-challenges docker libfuzzer python3
Last synced: 08 May 2026
https://github.com/davidkirwan/number_station
This gem contains a number of utilities to aid in the running of a number station.
cryptography number-station one-time-pad one-time-pad-cipher pseudorandom pseudorandom-number-generator radio
Last synced: 08 Nov 2025
https://github.com/ntdls/ntdls.nasccl
The NetworkDLS original symmetric cipher algorithm ported to C#.
algorithms cryptography encryption symmetric-encryption
Last synced: 11 Mar 2025
https://github.com/saorsa-labs/saorsa-fec
Core foundational crates for the Saorsa P2P ecosystem: saorsa-types, saorsa-fec (Forward Error Correction), and saorsa-rsps (Reed-Solomon with Proof Systems)
cryptography error-correction fec foundation networking p2p reed-solomon rust types
Last synced: 20 Jan 2026
https://github.com/1limxapp/react-native-chacha20-poly1305
ChaCha20-Poly1305 encryption/decryption for Flutter. Native implementation makes sure it has the fastest performance.
256-bit aes android chacha20 chacha20-poly1305 chacha20poly1305 cihper cipher-algorithms cross-platform cryptography encryption encryption-algorithms ios javascript react react-native typescript
Last synced: 21 Feb 2026
https://github.com/smallstepman/fluency-interview-task
interview tasks
cryptography interview-exercise portfolio rust webserver
Last synced: 25 Mar 2025
https://github.com/h0llyw00dzz/crypto-rand
Cryptographically secure random utilities
browser crypto cryptographic cryptographic-primitives cryptography cryptography-algorithms nodejs numbers-don-t-lie random random-numbers random-string secure security uuid
Last synced: 11 Mar 2026
https://github.com/abuzaidk1234/hybridtextfileencryptor
A lightweight and secure Python-based hybrid encryption tool using AES for content encryption and RSA for key protection — ideal for safely storing and transmitting sensitive text files.
aes cryptography cybersecurity encryption encryption-decryption python rsa text-encryption
Last synced: 09 Apr 2025
https://github.com/audrastump/hmac-encryption
Client/server socket using HMAC for data authenticity and integrity
cryptography cybersecurity encryption-decryption
Last synced: 13 Jul 2025
https://github.com/tnmyk/localblockchain
Centralized and local imitation of blockchain technology using Javascript.
blockchain cryptography javascript
Last synced: 26 May 2026
https://github.com/cwaring/ucan-inspector
An embeddable Web Component for inspecting UCAN tokens directly in the browser.
authorization authz cryptography debugger devtools js ucan vue3
Last synced: 16 Jan 2026
https://github.com/rani-abha/cryptography_algorithms
In this repository, I've gathered a collection of cryptographic algorithms that I've learned during my college years and implemented for both learning and practical purposes.
algorithms blacklist cipher-algorithms cryptography digitalsignature firewall-rules playfair-cipher sha1-hash whitelist
Last synced: 06 Jul 2025
https://github.com/ramsyana/lorenz-chaos-encrypt
Plain Convolution Encryption as an Alternative to Overcoming the Limitations of Synchronization-Based Methods
chaos-synchronization chaos-theory cryptography encryption lorenz-system numerical-methods python secure-communication
Last synced: 09 Apr 2025
https://github.com/nico-curti/cryptosocket
TCP/IP Client Server with RSA cryptography
Last synced: 14 Nov 2025
https://github.com/primetdmomega/bay-cracker
A set of tools for encryption, decryption of messages and to create new cyphers !
cryptography decryption encryption
Last synced: 25 Mar 2025
https://github.com/primefactor-io/ecc
Implementations of various Elliptic Curve Cryptography primitives such as ECDSA and Adaptor ECDSA over secp256k1
adaptor-signature adaptor-signatures cryptography cryptography-algorithms ecdsa ecdsa-cryptography ecdsa-signature ecdsa-signatures elliptic-curve elliptic-curve-cryptography elliptic-curves schnorr schnorr-signature schnorr-signatures
Last synced: 15 May 2025
https://github.com/nathancordeiro/magic-box-cipher
The Magic-Box Cipher is my own inspiration drawn from the classical Caesar Cipher, the Playfair Cipher and the monoalphabetic substitution cipher. Do give it a try.
cipher cipher-algorithm cryptography
Last synced: 31 Mar 2025
https://github.com/primefactor-io/lhtlp
Implementation of the Linearly-Homomorphic Time-Lock Puzzle scheme
cryptography cryptography-algorithms homomorphic-cryptography-scheme homomorphic-encryption homomorphic-encryption-library time-lock time-lock-puzzle
Last synced: 15 May 2025
https://github.com/primefactor-io/paillier
Implementation of the Paillier cryptosystem alongside its homomorphic operations
cryptography cryptography-algorithms homomorphic-cryptography-scheme homomorphic-encryption homomorphic-encryption-library paillier paillier-cryptosystem
Last synced: 26 Oct 2025
https://github.com/primefactor-io/commitment
Implementations of various Commitment Schemes
commitment-schemes cryptography cryptography-algorithms
Last synced: 15 May 2025
https://github.com/farhantips/cryptography-and-cryptanalysis
This repository covers practical implementations of Cryptography and Cryptanalysis, including encryption algorithms, hashing, digital signatures, and techniques for analyzing and breaking cryptographic systems.
aes-encryption authentication-protocol blockcipher ceaser-cipher cryptanalysis cryptography des diffie-hellman elliptic-curve-cryptography encryption-decryption hashing-passwords kerberos-authentication knapsack publickey-cryptosystem rsa-cryptography ssh ssl zero-knowledge-proof
Last synced: 26 Mar 2025
https://github.com/pmuens/cryptolab
R&D environment to study Cryptography so we can roll our own eventually
cryptography cryptography-algorithms ecdh ecdsa elliptic-curve-cryptography elliptic-curves learning-with-errors post-quantum-cryptography
Last synced: 15 May 2025
https://github.com/mananpatel06/information-security-practicals
This is Cryptography And Security Practical.
caesar-cipher-algorithm ce348 crns cryptography cspit depstar diffie-hellman-algorithm digital-signature-algorithm hill-climbing-algorithm information-security onetimepad playfair-cipher practicals railfence-cipher rsa-algorithm security
Last synced: 13 Jun 2026
https://github.com/chewzzz1014/sem-4-projects-code
arduino course-project coursework cryptography mvc prolog
Last synced: 13 Apr 2026
https://github.com/naveenrajm7/cipherapp
basic python gui for some cryptographic techniques
cipher-algorithms cryptography
Last synced: 22 Jun 2026
https://github.com/aelx01/kyberkeep
An experimental web-based and quantum-safe cryptography password manager with zero-knowledge cryptography
cryptography password-manager post-quantum-signature rust
Last synced: 06 Sep 2025
https://github.com/mariankapisinsky/FIT-VUT-NNET
Some of the school assignments from my master's degree study.
asynchronous-programming cryptography digital-forensics fit functional-programming graph-algorithms influxdb networking parallel-algorithms tls-fingerprint vut web-applications
Last synced: 11 Mar 2025
https://github.com/mrxx0/ft_ssl_md5
An introduction to cryptographic hashing algorithms.
Last synced: 03 Aug 2025
https://github.com/thesreale/crypto-factory-cf-eth-checker-drainer-balance-mnemonic
Ethereum wallets use cryptography and BIP39 standards to generate secure keypairs, mnemonics, and seed phrases. Hardware and cold wallets ensure safe storage, while balance checkers track funds on the blockchain.
balance balance-checker bip39 bitecoin blockchain cold-wallet crypto crypto-wallet cryptography ethereum hardware-wallet keypair mnemonic mnemonic-phrase seed seed-phrase wallet wallet-checker
Last synced: 09 Apr 2025
https://github.com/bmoneill/adfgvx
ADFGVX cipher encrypter/decrypter
adfgvx cipher cryptography html-css-javascript html5 webpage
Last synced: 06 Sep 2025
https://github.com/idhamm15/p10-cryptography
Cryptography Application With Java Programming
application-java cryptography java
Last synced: 14 Mar 2025
https://gitlab.com/asn42/challenge_website_2017
ASN CTF website https://wargame2017.sansnom.org/
42 42born2code 42school Crackme asn association born2code challenge cryptography ctf hacker nuitduhack security sql steganography wargame
Last synced: 11 Mar 2025
https://github.com/louisdeck/coinmachine
A wargame in C
binary-exploitation c cryptography ctf wargame
Last synced: 11 Mar 2025
https://github.com/cedi/cryptopals
http://cryptopals.com
challenge cryptography cryptopals
Last synced: 09 Apr 2025
https://github.com/go-universal/cryptography
🔐 Cryptography utilities for Go.
asymetric-cryptography cryptography golang hashing symetric-cryptography
Last synced: 10 Apr 2025
https://github.com/future-rafay/data-encryption-app-python_streamlit
🔐 SecureVault is a Python-based project designed to provide robust encryption and decryption functionalities.
cryptography fernet-encryption hashing-passwords python
Last synced: 18 Jun 2025
https://github.com/anishvedant/chat-box-application
This repository contains a secure chat application implemented using Python. The application uses RSA encryption for secure message exchange between clients and a server.
algorithm chat-application cryptography encrypted-messages encryption-decryption multi-client-support python python-gui-tkinter python-socket-server real-time real-time-messaging rsa-cryptography rsa-encryption secure-chat secure-communication socket socket-programming tkinter tkinter-gui
Last synced: 01 Sep 2025
https://github.com/mukailasam/rand
A Command-Line tool for generating a cryptographically secure random bytes
cryptographically-secure cryptographically-secure-random cryptography golang hexadecimal random random-bytes random-number
Last synced: 27 Feb 2025
https://github.com/smartibase/smart-transformers
Smart Transformers are a versatile machine learning tool that can be integrated with Pytorch, TensorFlow, and JAX. Smart transformers provide accurate computations required for cryptographic algorithms. These transformers is that they are independent modules, making it efficient to experiment with various research projects related to cryptanalysis
algorithms crypto cryptocurrency cryptography deep-learning jax machine-learning pytorch tensorflow transformer
Last synced: 28 Feb 2025
https://gitlab.com/florent.legname/java-crypto-sandbox
Tests and POCs with standard JDK 18 cryptographic implementations: RSA ciphering and signing, AES encryption etc.
AES cryptography java openjdk rsa
Last synced: 10 Jan 2026
https://github.com/andrewrgarcia/aesus
Word-based AES-256 encryption tool in Rust — for secrets too stylish for gibberish.
aes aes256 cli cryptography encryption passphrase privacy rust security tools
Last synced: 20 Jan 2026
https://github.com/duguorong009/md6-impl
MD6 hash implemented in Rustlang
cryptography hash md6 rust-lang
Last synced: 25 May 2026
https://github.com/mberry/makwa-sharp
C# implementation of the Makwa password hashing algorithm
cryptography hashing passwords
Last synced: 25 Mar 2025
https://github.com/4lessandrodev/cesar-cipher
A simple TypeScript library for Caesar cipher encryption and decryption
cesar-cipher cryptography shift-cipher
Last synced: 30 Jan 2026
https://github.com/mvharsh/information-security
A comprehensive collection of cryptography and cybersecurity algorithms including encryption, hashing, and common attack techniques.
cryptography cybersecurity encryption-algorithms ethical-hacking information-security network-security
Last synced: 14 Jun 2025
https://github.com/devssh/scaco
Final Year Project 2016 http://www.indjst.org/index.php/indjst/article/view/102112
abelian-groups algorithm carmichael chinese-remainder cloud cryptography discrete-logarithm euler-totient fermat galois-field network-security rsa signature-verification
Last synced: 20 Jul 2025
https://github.com/makarov-danil-school-projects-ctu/cryptography-sha-512
algorithms cpp cryptography hash-functions openssl
Last synced: 17 Mar 2025
https://github.com/anivanchen/pycrypt
A series of standalone scripts built with Cryptography for encryption and decryption of files / strings.
Last synced: 11 Jun 2026
https://github.com/wzyskq/polybius_square_pro
An improved encryption and decryption system from the Polybius Square.
Last synced: 14 Jan 2026
https://github.com/m-azra3l/passwordhashgenerator
Password hash generator in C#
cryptography csharp windows-forms winforms
Last synced: 04 Jan 2026
https://github.com/kevincharm/gfc-fpe
Generalised Feistel cipher for stateless shuffling
cryptography feistel fpe shuffle
Last synced: 07 Sep 2025
https://github.com/eiblybrasil/php-crypt
A simple php class for encryption.
class cryptography php php72 php73 php74 php80 php81
Last synced: 05 Feb 2026
https://github.com/twilight-dream-of-magic/fastfireblockcipher-mysticalascon
FastFire: An Enhanced Version of ASCON Algorithm with Custom Round Constants and Substitution-box with custom nonlinear functions, Linear Permutation
ascon block-cipher cryptography fastfire sponge-functions
Last synced: 01 Mar 2025
https://github.com/bmwant/ecc
Elliptic Curve Cryptography algorithms
calculus cryptanalysis cryptography
Last synced: 17 Mar 2025
https://github.com/stzyium/saltforge
A simple Python password security system using cryptographic concepts like salting, hashing, and PBKDF2.
cryptography hashing hashlib password-security python python-project salting sha256 sha256-hash
Last synced: 24 Oct 2025
https://github.com/zzemlyanaya/pythonedu
Репозиторий с учебными заданиями на языке Python
aes-encryption cryptography decorators dns-cache generators graph imap iterators multithreading python regex risc-v riscv-emulator smtp sntp sorting-algorithms traceroute
Last synced: 26 Aug 2025
https://github.com/innovativeinventor/cryptart
A way to easily verify files, keys, and other data using art(words, sounds, images)
cryptography hashing security-tools
Last synced: 27 May 2026
https://github.com/erhant/fftype
Finite-field arithmetic within the type system.
cryptography elliptic-curves finite-fields polynomials types typescript
Last synced: 05 Oct 2025
https://github.com/akhuntsaria/online-bcrypt-generator
Yet another online bcrypt generator.
bcrypt cryptography encryption generator javascript webpack
Last synced: 17 Jan 2026
https://github.com/praths71018/django_and_rest_framework_fundamentals_hospitalmanagement
A comprehensive Hospital Management System which is built using Django and Django Rest Framework
api-rest apm authentication authorization bitbucket cryptography django django-celery django-celery-beat django-rest-framework django-signals encryption-decryption middlware mysql newrelic redis unit-testing
Last synced: 13 Apr 2026
https://github.com/yaon-c2h8n2/krypton
Projet réalisé dans le cadre de l'UE Codages & Cryptographie en M1 à l'Université de Bourgogne
cryptography data-compression-algorithms data-encoding
Last synced: 05 Oct 2025
https://github.com/matthewcash/esp32-ecdsa
ECDSA (P-256) signing/verification using esp32 hardware accelerators
cryptography ecdsa embedded esp32
Last synced: 17 May 2026