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: 2026-07-01 00:06:48 UTC
- JSON Representation
https://github.com/notmorphus/overthewire-krypton
This is the OverTheWire wargame repo for Krypton
algorithms cryptanalysis cryptography krypton overthewire
Last synced: 18 Feb 2026
https://github.com/primefactor-io/commitment
Implementations of various Commitment Schemes
commitment-schemes cryptography cryptography-algorithms
Last synced: 15 May 2025
https://github.com/nasriyasoftware/authcrypto
AuthCrypto is a versatile cryptographic toolkit for handling JSON Web Tokens (JWT), password hashing, and secure token generation and verification. It provides robust methods for creating and managing JWTs, hashing and verifying passwords with secure algorithms, and generating cryptographically strong random values for various use cases.
authentication cryptography encryption hashing hashing-library hashing-passwords jwt jwt-auth jwt-authentication jwt-token md5 sha1 sha256 sha512 token token-generator
Last synced: 20 Jan 2026
https://github.com/tirthraj1605/website-security-grader
Website Security Grader is a Python-based tool to analyze the security of any website by checking SSL, TLS, headers, and other security practices. It assigns a security grade (A+ to D) based on industry-standard best practices.
cryptography httpclient python3 requests socket ssl
Last synced: 18 Mar 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/rokoss21/enigmo
🔐 Privacy-first messaging platform with end-to-end encryption. Flutter client + Dart server. Ed25519/X25519 cryptography, WebSocket real-time communication, zero-knowledge architecture.
cross-platform cryptography dart e2ee encryption flutter messaging mobile-app monorepo privacy real-time security websocket zero-knowledge
Last synced: 17 Jan 2026
https://github.com/khaledsharif/rubiks-encrypt
An encryption/decryption scheme based on the rubiks cube principle.
cryptography encryption research-project rubik-cube-principle
Last synced: 17 Mar 2025
https://github.com/telkomdev/jcrypsi
Custom crypto utility for Java Virtual Machine and Android (Digest, AES, HMAC, RSA, RSA Digital Signature)
aes android cryptography hash hmac java rsa
Last synced: 20 May 2026
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/jadsongmatos/cryptopals
attacks challenges ciphers cryptography decryption encryption hashes security
Last synced: 11 May 2026
https://github.com/al-aminazad/creating-jwt-token-using-node.js-crypto-library-both-manually-and-jsonwebtoken-npm
I have created a JWT(JsonWebToken) both manually and using Node.js jsonwebtoken npm. Manually I have used crypto library. It really helps me to understand about JWT , like how it works. By reading the documentation I have cleared it out.
cryptography hmac-sha256 jsonwebtoken nodejs
Last synced: 20 May 2026
https://github.com/ahf/orbis_example
Orbis: Example Application
consistent-hashing consistent-hashing-library cryptography erlang
Last synced: 22 Mar 2025
https://github.com/jiahaoxiang2000/sbox-bgc
use the smt solver to find the sbox implementation
Last synced: 18 Mar 2025
https://github.com/jrtib/secure-file-transfer-protocol
Secure file transfer protocol that utilizes RSA encryption for key exchange and SSL/TLS for secure communication.
cryptography file-transfer-protocol os python rsa-encryption socket ssl
Last synced: 26 Jun 2025
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/dssgabriel/present24-rs
Rust port of MITM attack on 2PRESENT24.
cryptography man-in-the-middle-attack present-cipher
Last synced: 08 Jul 2025
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/PeaceFounder/TallyProofs.jl
Cryptographic core for E2E verifiable voting system with everlasting privacy and coercion resistance via post-cast isolation
Last synced: 06 Apr 2026
https://github.com/princeranjan03/imageencryption_i-chip
This project focuses on creating a hardware-based encryption and decryption system that implements the Data Encryption Standard (DES) algorithm.
cipher cryptography data-encryption data-encryption-standard encoding encryption-decryption fpga image image-processing opencv rtldesign source-coding verilog verilog-hdl verilog-project vivado xilinx xilinx-vivado
Last synced: 26 Mar 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/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/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/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/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/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/nxm-rs/keycard
Blazing-fast Keycard SDK and CLI in Rust
cryptography ethereum keycard rust smartcard
Last synced: 20 May 2026
https://github.com/aswinr24/decypher
Speedy Cipher Decryption / Encryption CLI tool
cli cryptography hacktoberfest python
Last synced: 11 Apr 2025
https://github.com/alethea-protocol/alethea-protocol
Post-Quantum, Bitcoin-Anchored Layer 1 for Global RWA Collateralization | $11.46T Market
bitcoin blockchain cryptography defi kyber layer1 ml-dsa nist post-quantum pqc rwa sphincs
Last synced: 01 Nov 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/UofSC-Fall-2022-Math-587-001/homework3
Prime factorization and primitive powers mod p
Last synced: 28 Aug 2025
https://github.com/olukeye/fastapi-complaint-app
A simple application for logging complaint or report an issues form user activities.
crypto cryptography fastapi mssql-server pydantic-models pyodbc
Last synced: 17 May 2026
https://github.com/tenze21/cryptographic_verifiable_document_issuer
Building it as a part of spring semester 2025, PRJ202.
cryptography dapp digital-signature ethereum merkle-tree
Last synced: 20 Apr 2026
https://github.com/joestr/enka
Enkapsulate your data!
aes cryptography decryption encryption rsa
Last synced: 08 Jul 2025
https://github.com/nthnn/quickdigest5
QuickDigest5 is a lightweight C++ library for computing MD5 hashes of strings and files.
cpp-algorithms cpp-libraries cpp-library cryptography cryptography- md5 md5-hash
Last synced: 03 Apr 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/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/ryan-rozario/auctf_2020
Solutions for a few of the AUCTF 2020 Crypto Problems. Did not have much time to solve as much as i wanted to.
auctf auctf2020 crypto cryptography ctf
Last synced: 03 Apr 2025
https://github.com/vzool/go-sapient
[Under Development] Sapient Implementation Toolkit for golang to Secure API
cryptography golang paragonie sapient
Last synced: 31 Oct 2025
https://github.com/ricardoyam/dataescrowsystem
A decentralized data escrow system leveraging Intel SGX and TLS as the root of trust.
cryptography openenclave openssl sgx shamir-secret-sharing tls
Last synced: 25 Jan 2026
https://github.com/nico-curti/cryptosocket
TCP/IP Client Server with RSA cryptography
Last synced: 14 Nov 2025
https://github.com/rewired-gh/d-box-app
A trustworthy vault app utilizing state-of-the-arts algorithms
client cross-platform cryptography flutter vault
Last synced: 15 May 2026
https://github.com/snowkluster/unseen
A modern go cli tool for hashing and analysing the type of hash
analyzer cli cryptography golang hashing modern
Last synced: 15 May 2026
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/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/jtdowney/speck
Toy implementation of Speck cipher in Rust
Last synced: 27 Mar 2025
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/kevindasilvas/kcrypt
Kcrypt or Krypt is an encrypting and decrypting lib created using javascript and node js
cryptography javascript node node-js nodejs
Last synced: 16 May 2026
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/joakimch/secure-password-scheme
Manage your passwords in a secure way (accessible to all your devices) without needing to store them anywhere or sync any data; since they're procedurally generated (on demand).
cryptography password-manager passwords security
Last synced: 22 Mar 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/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/danielost/big-numbers
BigNumber implementation in Golang
Last synced: 13 May 2025
https://github.com/13point5/shrencryption
Simple Human Readable Encryption
cryptography encryption-algorithm web-app
Last synced: 14 Mar 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/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/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/psychlone77/election-system-core
A secure, privacy-preserving electronic voting system built with TypeScript and NestJS, implementing blind signatures, threshold cryptography, and end-to-end ballot encryption.
blind-signatures cryptography e-voting-system nestjs postgresql threshold-cryptography
Last synced: 01 Jul 2026
https://github.com/danielost/fips-140-3
FIPS (Federal Information Processing Standard) 140-3 benchmark for validating the effectiveness of RNGs.
Last synced: 13 May 2025
https://github.com/solidiquis/ether
Symmetric key encryption command-line utility.
command-line command-line-tool cryptography rust
Last synced: 28 May 2026
https://github.com/vatshayan/new-cipher-project
Newly Designed cipher. it is first in world. Named as Ambani Cipher
beprojects btechprojects cdeprojects cipher crypt cryptograp cryptography finalearprojects finalprojects finalyearprojects newfnalprojects securityprojects
Last synced: 01 Jun 2026
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/dbosk/otpkx
Towards Perfectly Secure and Deniable Communication Using an NFC-Based Key-Exchange Scheme
cryptography deniability paper
Last synced: 19 Jan 2026
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/amagioss/slv-action
Sets up the SLV CLI and helps in injecting vault secrets as masked environment variables for workflows to consume.
credentials credentials-helper cryptography decrypt encryption github-actions github-secrets secrets secrets-manager slv
Last synced: 20 Oct 2025
https://github.com/manasajayasri/image-steganography-with-stego-analysis
This repository hosts a Java-based image steganography tool designed to securely embed secret messages within digital images. The tool supports various image formats, including PNG, JPEG, and BMP, and employs multiple steganography techniques to maintain the integrity and confidentiality of the data.
awt cryptography digital-image-processing information-security java steganography
Last synced: 18 Mar 2025
https://github.com/nglaeser/gtm-ss
Girls Talk Math - Secret Sharing packet & spring activity
Last synced: 08 Apr 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/mikebrown0409/project-fuse
Zero-knowledge proof system for verifiable compliance envelopes. Proves compliance checkers executed correctly without revealing sensitive data. Built with RISC Zero zkVM. Phase 1 complete.
audit compliance cryptography gdpr privacy-preserving regulatory-compliance risc-zero rust soc2 zero-knowledge-proofs zkp zkvm
Last synced: 11 Jan 2026
https://github.com/nglaeser/cryptotex
Flexible LaTeX template for cryptography research & conferences (WIP)
Last synced: 08 Apr 2026
https://github.com/bshankar/pyrite
A minimal (insecure, incomplete) implementation of a bitcoin like cryptocurrency
cryptocurrency cryptography javascript nodejs
Last synced: 02 May 2026
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/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/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/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/d-thatcher/hybridcryptosystem
A library of functions built around PyCrypto that implements a asymmetric encryption of public keys with symmetric encryption of files
cryptography hybridencryption python
Last synced: 30 Apr 2026
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/iotexproject/rs-proximity-gaps
Lean 4 formalization, Python verification, and manuscripts for two ePrint papers on FRI proximity gaps above the Johnson radius (Chai & Fan, IoTeX, 2026) — ePrint 2026/861 + 2026/858.
action-orbit correlated-agreement cryptography ethereum formal-verification fri interactive-oracle-proof johnson-bound lean4 mathlib proximity-gap reed-solomon stark succinct-proofs zero-knowledge-proofs zk-stark
Last synced: 01 Jul 2026
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/gausix/enigmify
This project is a simple implementation of the Enigma machine in Rust. It allows users to input a message, configure the rotor and reflector settings, and encrypt or decrypt the message.
cli cryptography enigma-machine rust security
Last synced: 07 Jul 2025
https://github.com/jameskabbes/cryptography
Package for easy implementation of professional encryption algorithms
cryptography pypi-package python
Last synced: 08 Apr 2026
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/uofsc-fall-2022-math-587-001/homework12
Elliptic curve cryptography
cryptography ecdsa elliptic-curve-cryptography elliptic-curve-diffie-hellman elliptic-curve-elgamal go latex math
Last synced: 09 May 2026
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/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
