Cryptography
Cryptography, or cryptology is the practice and study of techniques for secure communication in the presence of adversarial behavior. More generally, cryptography is about constructing and analyzing protocols that prevent third parties or the public from reading private messages.
- GitHub: https://github.com/topics/cryptography
- Wikipedia: https://en.wikipedia.org/wiki/Cryptography
- Last updated: 2026-07-02 00:06:57 UTC
- JSON Representation
https://github.com/mrchristensen/aes
Simple Advanced Encryption Standard (AES) implementation that can generate 128, 192, and 256 bit keys.
aes-encryption computer-security cryptography
Last synced: 26 Aug 2025
https://github.com/riyamishra28/cryptotools
Created an Application for Information System Security (ISS) Lab, where we implemented the following algorithms: 1. Diffie Hellman-MIMT Attack 2. Miller-Rabin Primality Test 3. DES-Differential Cryptanalysis
android-application cryptography
Last synced: 15 May 2026
https://github.com/archethic-foundation/bls_ex
archethic bls cryptography elixir
Last synced: 20 Jan 2026
https://github.com/aditya-giri/cryptopals
My solutions to the Matasano Challenges in Cryptography.
cryptography cryptopals matasano matasano-cryptopals-challenges
Last synced: 19 Sep 2025
https://github.com/phenomsg/password-manager
It is a Python password manager using Fernet encryption. It securely stores and manages passwords, ensuring confidentiality and convenience for users.
cryptography decryption encryption fernet python
Last synced: 28 Dec 2025
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/ali2210/rsa
this is implementation of RSA cryptography in Java
Last synced: 03 Apr 2025
https://github.com/basedwon/crpdo
A unified cryptographic library integrating diverse modules to provide robust and versatile cryptographic solutions for Node.js and the browser.
cryptography encryption hashing tweetnacl
Last synced: 29 Aug 2025
https://github.com/asjordi/basicjavablockchain
Simple Java Blockchain
blockchain blockchain-demos cryptography java
Last synced: 24 Mar 2025
https://github.com/mauricelambert/customcrypto
This package implements tools to build your custom cipher
cipher cryptography encryption pypi-package python3
Last synced: 04 Jul 2025
https://github.com/shubhamv108/crypto-utils
A simple crypto util in Java.
aes crypto-utils cryptography cryptography-utilities hashing hotp otp rsa totp
Last synced: 24 Mar 2025
https://github.com/fungrim/gcp-kms-csr-generator
A small utility library that creates CSR's where the private key is stored in GCP KMS.
bouncy-castle cryptography csr digital-signatures gcp gcp-kms java java-8 kms
Last synced: 14 Jul 2025
https://github.com/andrey-oss/task_management_system
Task management system - Simple ecosystem for task managing from the web written on python3!
aes crud cryptography database django free management manager task
Last synced: 07 Apr 2026
https://github.com/buanzo/openpgp-requests
A wrapper to the Python Requests module that implements some OpenPGP cryptographic features such as encryption. It allows developers to add a cryptographic layer to HTTP requests, particularly useful for building more secure APIs. See README.md for server-side stuff.
api cryptography data-security information-security openpgp python-requests python36 rest-client
Last synced: 11 Apr 2025
https://github.com/yurykozhenov/infosec
University Information Security tasks
Last synced: 31 Aug 2025
https://github.com/yeshan333/python-cryptography-coding
Classic encryption algorithm: Python implementation
Last synced: 21 Mar 2025
https://github.com/maxencerb/crypto-exercices-2021-td1
Ploblem solving for cryptography.
Last synced: 27 Apr 2026
https://github.com/deadkennedyx/niebla-158
BIP-158 - Compact Block Filters
bip157 bip158 blockchain btc btc-wallet crypto cryptocurrency cryptography privacy-enhancing-technologies
Last synced: 20 Jan 2026
https://github.com/soyart/pfc
pfc is a python clone for my gfc. It encrypts file using AES256-GCM, and encodes the output to hex.
aes crypto cryptography encryption
Last synced: 17 Jan 2026
https://github.com/rakibhossain72/xorpass
XORpass is a Flask-based password manager application with MongoDB integration. It allows users to securely store their passwords in a MongoDB database, with encryption applied using their own master password. This ensures that the stored passwords are protected and can only be accessed by the owner.
cryptography encrypted-store flask password-manager
Last synced: 15 Jul 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/besoeasy/signature-login
Signature Login - Signature-Based Authentication
authentication cryptography secp256k1
Last synced: 20 Jan 2026
https://github.com/thefcraft/bhx-encryption-algorithm
Dynamic, block-based encryption algorithm (BHX / BlockHashXOR) with integrated HMAC integrity checks and support for both streaming and non‑streaming modes in Python.
bcrypt cryptography encryption hmac sha256 streaming xor-cipher
Last synced: 21 Mar 2025
https://github.com/rstacks/wanictf2024-writeup
Writeups for the challenges I attempted at WaniCTF 2024.
cryptography ctf ctf-challenges ctf-solutions ctf-writeups forensics reverse-engineering web-exploitation
Last synced: 13 Mar 2025
https://github.com/rstacks/n00bzctf2024-writeup
Writeups for the challenges I attempted at n00bzCTF 2024.
cryptography ctf ctf-writeups forensics osint programming reverse-engineering web-exploitation
Last synced: 13 Mar 2025
https://github.com/shaina-gh/md5-mac
A Java-based tool to generate secure Message Authentication Codes (MACs) using HMAC-MD5 for verifying data integrity and authenticity. Features MD5 hashing, RFC 2104-compliant key adjustment, and inner/outer hash computation with ipad/opad. Ideal for learning cryptographic integrity checks, with sample key-message inputs and hex-encoded output.
Last synced: 15 May 2026
https://github.com/luckyone-cc/stardelegateminer
The Star Delegate Miner is a wrapper to simplify the crypto-mining process in combination with pooling.
cryptocurrency cryptography csharp mining mining-pool mining-software
Last synced: 17 Mar 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/luckyone-cc/merkletree
Merkle Tree Algorithm
crypto cryptocurrency cryptography merkle-proof merkle-root merkle-tree merkletree
Last synced: 17 Mar 2025
https://github.com/vzool/go-sapient
[Under Development] Sapient Implementation Toolkit for golang to Secure API
cryptography golang paragonie sapient
Last synced: 02 Jul 2026
https://github.com/fynydd/fynydd.enigma
An Enigma Machine emulator that enciphers text strings and which can be used for modern quantum-resistant encryption in mobile, desktop, and server apps (Windows, macOS, Linux, .NET 9.0, x64, Arm64, Apple Silicon).
cipher crypto cryptography dotnet encryption enigma enigma-machine keyless keyless-cipher machine ww2
Last synced: 21 Apr 2026
https://github.com/newyaroslav/siphash-hpp
SipHash Headers Only C ++ Library
cryptographic-hash-functions cryptography hash pseudorandom-functions siphash
Last synced: 26 Feb 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/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/grakshith/shamir-secret-sharing
A basic implementation of Shamir Secret Sharing
cryptography interpolation secret-sharing shamir-secret-sharing
Last synced: 14 May 2026
https://github.com/eshan327/Javachain
An experimental, fully functioning blockchain developed in Java.
Last synced: 12 May 2025
https://github.com/usherlabs/ecdsa-jwt
ECDSA challenge-based authentication with JWT session management
authentication cryptography ecdsa jwt rust
Last synced: 20 Jan 2026
https://github.com/cuhsat/practical
A one-time pad variant for easy manual application.
algorithm cipher cryptography one-time-pad one-time-pad-cipher practical python strong
Last synced: 29 Mar 2025
https://github.com/stevemats/wheatstone-playfair-cipher
C code to encrypt a string using the Playfair cipher.
Last synced: 30 Aug 2025
https://github.com/gauravg-20/elliptics
cryptography encryption-algorithms encryption-decryption
Last synced: 14 Aug 2025
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/michaelgiuliano/s3-crypt-vault
A secure client-side encrypted storage system for AWS S3.
aws cli cloud-security cryptography cybersecurity devops encryption python s3
Last synced: 06 Apr 2026
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/moussaak/crypto
Vigenere Cipher, multitimepad
cryptography java vigenere-cipher
Last synced: 30 Oct 2025
https://github.com/ymcx/skibidifier
Encrypts your strings to form a funny-looking wall of text consisting of the words 'skibidi' and 'toilet'. Based on TEA (Tiny Encryption Algorithm)
cli command-line command-line-tool crypto cryptography encryption rust
Last synced: 14 Oct 2025
https://github.com/vilajj/python-client_server-socket
A simple client-server created with Python, with cryptograpy and threading.
client-server cryptography python socket threading-server
Last synced: 10 Sep 2025
https://github.com/uofsc-fall-2022-math-587-001/homework2
Mathematical preliminaries: division, the Euclidean algorithm, and modular arithmetic
cryptography golang latex math
Last synced: 07 May 2026
https://github.com/harshanalluru/cryptography-cs641
cryptography decryption-algorithm des pyautogui pyperclip python
Last synced: 25 Aug 2025
https://github.com/nsubiron/crypto
Few handy wrappers around OpenSSL's libcrypto.
crypto crypto-library cryptography cryptography-library openssl password-digest random-number-generators secure-string
Last synced: 20 Mar 2025
https://github.com/saikrishnareddy1919/blockchain-resources
Resources to learn Blockchain | web3 stuff. Will continue adding more resources to this. Star and watch this repo.
blockchain blockchain-technology crypto cryptocurrency cryptography decentralized decentralized-applications ethereum ethereum-blockchain nft nfts resources smart-contracts solidity web3 whitepaper whitepapers
Last synced: 15 May 2026
https://github.com/nim579/cry
cipher crypto cryptography encryption sign verify
Last synced: 27 Mar 2025
https://github.com/yashkarthik/hash_crakking
Hash texts entered.
cryptography hashing python python-3
Last synced: 10 Mar 2026
https://github.com/jonath-z/go-vigenere-cipher
Vigenere Cipher algorithm written in go
cipher-algorithms cryptography go golang vigenere-cipher-algorithm
Last synced: 01 Apr 2025
https://github.com/uofsc-fall-2022-math-587-001/homework8
A bit about distribution of primes and Pollard's p-1 test
cryptography go latex math pollard-p-1 prime-numbers
Last synced: 29 Apr 2026
https://github.com/onlyf0ur/openssl-mojo
Indirect OpenSSL bindings for Mojo
bindings c cryptography mojo openssl
Last synced: 17 Mar 2025
https://github.com/nexys-system/crypto
Simple crypto helpers for Node
cryptography node package typescript
Last synced: 18 May 2026
https://github.com/antonmeep/fastpbkdf2_ada
Binding and an Ada wrapper for fastpbkdf2
Last synced: 16 Jul 2025
https://github.com/jsf0/aspis
command line encryption filter using NaCL
argon2 command-line cryptography encryption filter libsodium pipe ruby
Last synced: 17 Mar 2025
https://github.com/jieunhan17/cryptographicsecurityprotocol
A team project from the Corporate Computer Security class in 2019
Last synced: 21 Apr 2026
https://github.com/shyamsunder149/ctf-notes
CTF Notes made for my references for Solving CTFs
cryptography forensics notes python steganography
Last synced: 13 Jun 2026
https://github.com/web3pack/base-x
A modern base-x encoding library implemented in TypeScript with minimal dependencies for use in browser and Node.js.
base16 base2 base45 base58 bitcoin crypto cryptography decode decoding encode encoding javascript nodejs npm typescript web3
Last synced: 11 Apr 2026
https://github.com/ryanj93/dotline-client
The DotLine Client :: DotLine is an IM app with end-to-end encryption and several message type support.
chat cryptography end-to-end-encryption instant-messaging
Last synced: 07 Apr 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/twseptian/python-codes
Python scripts collected by owner
cryptography python python-script python2 python3
Last synced: 15 May 2025
https://github.com/hostileninja72/encryption-tool
A tool used to encrypt using different algorithms.
aes chacha20 command-line-tool cryptography python rsa
Last synced: 02 Mar 2025
https://github.com/danilowskic/password-manager
the application was created as part of the final project for the PJC (Fundamentals of Programming in C and C++) course at PJAIT
cpp17 cryptography password-manager security
Last synced: 22 Mar 2025
https://github.com/zntrio/crypto
Cryptographic functions and primitives for my projects.
cryptography golang golang-library hpke kem
Last synced: 12 Jan 2026
https://github.com/pjiwm/goodcoin
Simple blockchain implementation of a cryptocurrency written Python. CLI with miner and wallet functionality.
blockchain blockchain-technology cryptocurrency cryptography python
Last synced: 13 Jun 2026
https://github.com/sami-bre/cryptosystems
A small command line tool that can encrypt and decrypt text with 3 different algorithms: the affine, transposition and RSA ciphers.
affine-cipher cryptography rsa-encryption transposition-cipher
Last synced: 28 Mar 2025
https://github.com/sajad-net/pymorse
python morse code and decode
cryptography morse morse-decider morse-encoder python python-morse
Last synced: 17 Mar 2025
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/tniessen/zkp-volte-patarin-nachef-c
Implementation of the zero-knowledge protocol due to Volte, Patarin, and Nachef (2013) in plain C
academic cryptography zero-knowledge-proof
Last synced: 20 Mar 2025
https://github.com/hsfzxjy/kuroport
[WIP] :ribbon: Decentralized file teleporter & messenger, designed for multiple platforms, transmitting over diverse networks.
cryptography decentralized file-sharing messenger
Last synced: 30 Mar 2025
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/hemantksingh/blockchain
A simple blockchain that doesn't use proof-of-work
Last synced: 30 Mar 2025
https://github.com/sur-ser/symmorph-cli
CLI tool for encrypting and decrypting files using the SymmetricMorph cipher.
cipher cli command-line crypto-library cryptography data-protection encryption file-encryption node-cli nodejs password-encryption security stream-encryption symmetric-encryption symmetricmorph typescript
Last synced: 07 May 2026
https://github.com/rlxchap2/crypto-miner
🔨Crypto Miner is a Python project designed to encrypt and decrypt files, especially images, using the powerful cryptography library
crypto cryptography csv numpy pillow python
Last synced: 08 May 2026
https://github.com/jiahaoxiang2000/sbox-bgc
use the smt solver to find the sbox implementation
Last synced: 18 Mar 2025
https://github.com/cryptocoin-wallets/exodus-core-fast-crypto-blockhain-plugin-walletconnect
Exodus New Feature Development is an open-source initiative enhancing the capabilities of the Exodus application for secure digital asset management. Join us in contributing innovative features and improving the Exodus ecosystem.
blockchain-plugin crypto cryptography exodus-api exodus-app exodus-core exodus-geteway exodus-payment exodus-wallet exodus-wallet-web3 exodus-wallets fast-api javascript wallet-connect wallet-connector wallets
Last synced: 26 Mar 2025
https://github.com/shanthanu9/cryptopals-solutions
Solutions for Matasano Cryptopals challenges
cryptography cryptopals-challenges
Last synced: 12 Jun 2025
https://github.com/simonbrandner/crypto-intro-slides
Slides for a presentation I gave to some of my friends to introduce them to cryptography
Last synced: 16 Feb 2026
https://github.com/loneicewolf/py-snippets
Useful snippets in Python3 (mainly Jupyter)
cipher ciphers cryptography decryption encryption python3 snippets
Last synced: 15 May 2025
https://github.com/z3ntl3/rsa-node
This repo represents what I've learned from cryptography RSA algorithm
Last synced: 03 Apr 2025
https://github.com/uofsc-fall-2022-math-587-001/homework10
The index calculus for the DLP, quadratic reciprocity, and Tonelli-Shanks.
cryptography go latex math quadratic-reciprocity tonelli-shanks
Last synced: 14 May 2026
https://github.com/jimouris/ring-signatures
A Rust implementation of ring signatures using Ristretto.
crypto cryptocurrency cryptography monero ring ring-signature ring-signature-scheme ring-signatures
Last synced: 15 May 2026
https://github.com/cloakmaster/foxbook
Verifiable agent identity for A2A and MCP. Cryptographic claims, append-only transparency log, recovery-key revocation. Apache 2.0.
a2a agent-identity agent-security agent-verification agent2agent agentic-ai ai-agents cryptography decentralized-identity did ed25519 json-schema jws mcp merkle-tree model-context-protocol protocol rfc-9162 transparency-log typescript
Last synced: 03 May 2026
https://github.com/filiprokita/tosha256
This is a Python script that prompts the user to enter a string of text and then calculates its SHA-256 hash using the hashlib library. The resulting hash is then printed to the console.
cryptography data-integrity hash hashing python security sha256 tosha
Last synced: 24 Mar 2025
https://github.com/fboulnois/ring-pkae-example
An example of public key authenticated encryption in Rust
aead crypto cryptography ecdh elliptic-curve-cryptography public-key-cryptography public-key-encryption rust
Last synced: 01 Jul 2025
https://github.com/topay-foundation/topay_z512
Cross-language 512-bit lattice-based post-quantum encryption library (Rust · Go · JS)
blockchain cryptography encryption-decryption golang javascript rust topayz512
Last synced: 16 Jul 2025
https://github.com/carlosmakin/enigma-cli
A simple command-line interface for encrypting and decrypting data.
Last synced: 24 Aug 2025
https://github.com/kevin-fagan/simplified-aes
Simplified AES
cryptography education python s-aes saes simplified-aes
Last synced: 21 May 2026
https://github.com/pieroboseta/filenfile
filenfile is a Python application that securely hides and extracts files and folders within a main file of your choice using encryption and compression techniques, providing a simple and efficient way to store sensitive data discreetly.
compression cryptography data-hiding data-security file-archiving file-encryption file-security hidden-files hide lzma-compression metadata-encryption python-application python-gui python-script secure-storage tkinter
Last synced: 01 Apr 2025
https://github.com/sycanz/ctf-writeups
My writeups for CTFs I've been in
cryptography ctf-writeups python3
Last synced: 15 May 2025
https://github.com/yutotakano/crypton-box
Implementation of NaCl Box and SecretBox in Haskell using crypton primitives
cryptography haskell nacl-secretbox
Last synced: 07 Mar 2026
https://github.com/tesselay/yubikey-post-hook-uki-signing
mkinitcpio post hook to auto sign UKI using any inserted YubiKey
certificate cryptography key-crypto linux mkinitcpio piv smartcard uki unified-kernel-image x509 yubikey
Last synced: 19 May 2026
https://github.com/cadeke/lets-go
lets-go is a simple CLI application written in Go for encrypting and decrypting files.
cli cryptography decryption encryption golang
Last synced: 05 Jun 2026
https://github.com/mlziade/keycrypt
A fun and challenging puzzle website. You can create puzzles for friends and other players to solve! Only then can they decrypt your message...
cryptography django game puzzle puzzle-game
Last synced: 15 May 2026