An open API service indexing awesome lists of open source software.

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.

https://github.com/karasz/securelog

Forward-secure Go library for tamper-evident audit logs, implementing Ma–Tsudik’s dual-MAC private-verifiable scheme.

audit-logging compliance cryptography forward-security golang log-integrity secure-logging tamper-detection

Last synced: 26 Oct 2025

https://github.com/lgraubner/strong-pwgen-cli

🔒Generate cryptographically strong passwords.

cli crypto cryptography password password-generator

Last synced: 27 Oct 2025

https://github.com/crane-valley/kylix-cli

A command-line interface for Kylix, a post-quantum cryptography library implementing NIST FIPS standards in Rust.

cli command-line cryptography digital-signatures fips-203 fips-204 fips-205 key-generation ml-dsa ml-kem post-quantum pqc rust slh-dsa

Last synced: 28 Jan 2026

https://github.com/confy-security/confy-addons

Implementation of symmetric and asymmetric encryption with AES and RSA algorithms for client applications of the Confy communication system

aes base64 confy cryptography decryption encryption privacy rsa security

Last synced: 28 Jan 2026

https://github.com/dualeai/hpke-http

End-to-end encryption for HTTP APIs using RFC 9180 HPKE. Drop-in middleware for FastAPI, aiohttp, and httpx.

aiohttp chacha20 cryptography e2e encryption fastapi hpke http rfc9180 sse streaming x25519

Last synced: 06 Feb 2026

https://github.com/harshil748/pylockv2

PyLockv2 is a secure password manager application built using Python and Tkinter. It allows users to store and manage their passwords securely, with features such as password encryption, email verification, and password reset using a special sentence.

cryptography cybersecurity hashing-passwords python3 smtp

Last synced: 25 Feb 2026

https://github.com/systemslibrarian/postquantum.fileformat

Draft specification for a hybrid post-quantum file encryption format. X25519+ML-KEM-1024 + Ed25519+ML-DSA-87. EXPERIMENTAL — seeking review.

cryptography dotnet draft-spec file-format hybrid-encryption post-quantum specification

Last synced: 01 Jun 2026

https://github.com/labex-labs/comptia-security-plus-training-labs

Master cybersecurity fundamentals through hands-on labs, covering threat analysis, risk management, network security, identity management, cryptography, and incident response. Perfect for CompTIA Security+ certification prep.

certification certification-prep comptia course cryptography cybersecurity hands-on hands-on-labs identity-management incident-response labex labs network-security penetration-testing programming risk-management security security-fundamentals sysadmin threat-analysis

Last synced: 11 Feb 2026

https://github.com/astropilot/bigeye

A web security challenges website, a school project for my software security course

challenge cryptography ctf-platform security web

Last synced: 19 Mar 2026

https://github.com/alexstevovich/ghostmail

[Node.js] Obfuscates inline HTML email addresses to protect from bots and scrapers.

cryptography email micro nodejs

Last synced: 15 Feb 2026

https://github.com/dipanshkhandelwal/manytimepad

A solution to many time pad attack https://manytimepad.js.org/

cryptography encryption manytimepad onetimepad

Last synced: 15 Feb 2026

https://github.com/nemanjapetrovic/cryptography-course-elfak

Cryptography course @ Faculty of Electronic Engineering, University of Niš, Serbia

cipher cryptography knapsack multithreading rc4 simple-substitution tea threading xtea

Last synced: 16 Apr 2026

https://github.com/benwoo1110/cryptographyapp

Advanced converter for modern cryptography algorithms

cryptography csharp

Last synced: 31 Mar 2026

https://github.com/nandanr06/full-stack-cryptocurrency

Cryptocurrency Tracker is a real-time app for monitoring cryptocurrency prices, market trends, and historical data. Powered by the CoinGecko API, Node.js, Express, and React, it allows users to view live market updates, explore trending coins, and analyze price histories with interactive charts—all in a responsive, user-friendly interface.

bitcoin cryptocurrency cryptography marketplace

Last synced: 17 Apr 2026

https://github.com/symbolicsoft/jevil

A stateless few-time signature scheme with a sharp key-recovery cliff

cryptography few-time-signatures post-quantum-cryptography signature-scheme

Last synced: 03 Jun 2026

https://github.com/mamolinux/simple-pwgen

Very simple Python3-based GUI application to generate secure and random password.

cryptography debian linux-mint password-generator python3 ubuntu

Last synced: 03 Apr 2026

https://github.com/telkomdev/netcrypsi

Custom crypto utility that wraps the DotNet cryptography API to make life easier (Digest, AES, HMAC, RSA, RSA Digital Signature)

aes cryptography dotnet rsa

Last synced: 17 Apr 2026

https://github.com/eltneg/kryptograzig

Simple public key cryptography algorithms implemented in zig

cryptography encryption-decryption zig

Last synced: 05 Jun 2026

https://github.com/koadt/encodr

A Chrome extension that provides a comprehensive suite of encoding, decoding, and hash analysis tools, all within your browser. Convert text between various formats with a clean, modern interface.

base64 bcrypt cryptography decoder encoder extension-chrome hashing javascript jwt

Last synced: 29 Apr 2026

https://github.com/raupulus/esp8266-blockchain-tracing-with-display

Shows Real Time Price of Cryptocurrencies on several Screens. Mirror de https://gitlab.com/raupulus/esp8266-blockchain-tracing-with-display

blockchain cryptocurrency cryptography display esp8266 monitor monitoring

Last synced: 30 Apr 2026

https://github.com/afraz496/fypafraz

This repository comprises of a Post Quantum Cryptography implementation. This is a repository that includes all of the software developed for the Final Year Project of Afraz Arif Khan (CID 00963429) at Imperial College London.

c cryptography key-exchanges postquantum python

Last synced: 01 May 2026

https://github.com/modemobpsycho/itra-task-3

The third assignment from the internship.

ascii chalk cryptography hmac-sha256 typescript

Last synced: 08 Jun 2026

https://github.com/jacob-ian/deno_random_bigint

Generate a random BigInt by bit-length with Deno.

cryptography deno typescript

Last synced: 02 May 2026

https://github.com/reklatsmasters/is-chacha20-poly1305-supported

Check whether a chacha20-poly1305 cipher is supported by NodeJS

aead chacha20 chacha20-poly1305 cipher crypto cryptography nodejs poly1305 rfc7539

Last synced: 03 May 2026

https://github.com/scotow/pac

Scripts made throughout the PAC courses (Lille University)

course cryptography lille university university-project

Last synced: 09 Jun 2026

https://github.com/ash-2k3/ooni-chainwatch

A python script to extract certificate chains from OONI web connectivity measurements and submit them to a Let's Encrypt Certificate Transparency (CT) log. This aids in monitoring and auditing the certificates used on the web, contributing to internet transparency efforts.

certificate-transparency cryptography python s3-buckets x509certificates

Last synced: 10 Jun 2026

https://github.com/sourish-kanna/side-projects

These are my other side projects which are not that big for a dedicated repository

ascii cesar-cipher cesar-cypher cryptography encryption java python side-project

Last synced: 11 May 2026

https://github.com/netesf13d/crypto-stuff

Python implementation of some common cryptographic primitives

aes cryptography keccak

Last synced: 14 May 2026

https://github.com/liu-yucheng/retroverse-bike-utils

A utility toolset for the Retroverse Bike project.

cryptography python3 utility

Last synced: 18 Jun 2026

https://github.com/ao3575911/dark-swan

Decentralized identity and symbolic anonymization protocol — Ed25519 signing, rotating pseudonyms, and local registry for private verifiable identities.

anonymization cryptography decentralized ed25519 identity privacy pseudonym python

Last synced: 22 Jun 2026

https://github.com/vonderklaas/python-password-manager-cli

This is application which imitates a password book, where you can add passwords into the file, or you can view your passwords from the file

cryptography python

Last synced: 22 Jun 2026

https://github.com/rwilliamspbg-ops/smp-zk-proofs

A Rust library providing verifiable aggregation ledgers in distributed spatial networks. It implements deterministic zero-knowledge proof (ZKP) and verification pipelines for local data processing—specifically validating location constraints and machine learning training updates—using a flexible API designed for seamless integration with Halo2

arkworks cryptography halo2 machine-learning privacy-preserving rust spatial-networks verifiable-computation zero-knowledge-proofs zkp

Last synced: 22 Jun 2026

https://github.com/schlopp96/mycaesarcipher

Substitution-based cryptographic cipher for encoding plaintext. Works with alphanumeric characters.

caesar-cipher caesar-cipher-algorithm caesar-shift cipher cryptography decode decryption encode encoder-decoder encryption python python-script python3 shift-cipher

Last synced: 08 Feb 2026

https://github.com/soyart/gfc

stable branch of gfc, a small go file encryption utility using AES 256 and PBKDF2

aes crypto cryptography encryption rsa

Last synced: 14 Jan 2026

https://github.com/systemslibrarian/crypto-lab-shor

Browser-based Shor's algorithm simulation — modular exponentiation period finding, QFT probability distribution, continued fractions, factor extraction. The reason RSA, ECC, and Diffie-Hellman need replacing. No backends. No simulated shortcuts — the number theory is real.

browser-demo crypto-lab cryptography integer-factorization period-finding post-quantum quantum-computing quantum-fourier-transform rsa shors-algorithm

Last synced: 01 Jun 2026

https://github.com/systemslibrarian/crypto-lab-falcon-seal

Browser-based Falcon demo — compact NTRU lattice signatures with Fast Fourier Sampling, side-by-side comparison against ML-DSA and SLH-DSA, and implementation security warnings. No backends. No simulated math.

browser compact-signatures crypto-lab cryptography digital-signatures falcon fast-fourier-sampling lattice-based ml-dsa nist ntru post-quantum pqc typescript vite

Last synced: 01 Jun 2026

https://github.com/systemslibrarian/crypto-lab-aes-modes

Browser-based AES modes demo — ECB, CBC, CTR, GCM, and CCM with live padding oracle attack. Real WebCrypto operations, ECB penguin visualization, Bleichenbacher oracle, and authenticated encryption breakdown. No backends. No simulated math.

aes aes-cbc aes-ctr aes-ecb aes-gcm authenticated-encryption bleichenbacher block-cipher browser ccm crypto-lab cryptography padding-oracle typescript vite

Last synced: 01 Jun 2026

https://github.com/systemslibrarian/crypto-lab-noise-pipe

Browser-based Noise Protocol Framework demo — NN, XX, IK, and IKpsk2 handshake patterns with real X25519 arithmetic, live transport encryption, and a WireGuard deep dive. No backends. No simulated math.

aes-256-gcm browser crypto-lab cryptography forward-secrecy handshake hkdf key-agreement noise-protocol secure-channel signal-protocol typescript vite wireguard x25519

Last synced: 01 Jun 2026

https://github.com/systemslibrarian/crypto-lab-bcrypt-forge

Browser-based bcrypt deep-dive — anatomy, cost factor benchmarking, timing-safe verification, and a real-world breach simulation. Part of the crypto-lab suite.

argon2 bcrypt blowfish browser-crypto cost-factor crypto-lab cryptography password-hashing password-security rainbow-table security timing-attack typescript vite web-security

Last synced: 01 Jun 2026

https://github.com/systemslibrarian/crypto-lab-ckks-lab

Browser-based CKKS approximate FHE demo — encrypted floating-point arithmetic, homomorphic neural network inference, rescaling, and the complete FHE trilogy (TFHE + BGV/BFV + CKKS). Part of the crypto-lab suite.

approximate-arithmetic browser-crypto ckks crypto-lab cryptography encrypted-inference fhe homomorphic-encryption machine-learning microsoft-seal privacy privacy-preserving-ml rlwe typescript vite

Last synced: 01 Jun 2026

https://github.com/craiggleso/enigma

Javascript implementation

cryptography enigma

Last synced: 06 Oct 2025

https://github.com/danielost/ecpoint-wrappers

Convenient wrappers for operations on elliptic curves in Golang.

cryptography ecc elliptic-curves

Last synced: 06 Oct 2025

https://github.com/systemslibrarian/crypto-lab-babel-hash

Browser-based demo of cryptographic hash functions — SHA-256, SHA3-256, and BLAKE3. Live avalanche effect visualizer, length extension attack against SHA-256, and why HMAC exists. Hash functions are the silent foundation of every other primitive.

avalanche-effect blake3 browser-demo crypto-compare cryptography hash-functions hmac keccak length-extension-attack merkle-damgard nist-fips-180-4 nist-fips-202 sha-256 sha3-256 typescript vite

Last synced: 01 Jun 2026

https://github.com/systemslibrarian/crypto-lab-format-ward

Browser-based format-preserving encryption demo — FF1 and FF3-1 live tokenization of credit cards, SSNs, and phone numbers. Real AES-256 Feistel rounds. No backends. No simulated math.

aes-256 browser crypto-lab cryptography data-masking feistel ff1 ff3 format-preserving-encryption fpe nist pci-dss tokenization typescript vite

Last synced: 01 Jun 2026

https://github.com/systemslibrarian/crypto-lab-rsa-forge

Browser-based RSA demo — textbook RSA, OAEP, PSS signatures, and live attacks including small exponent, Bleichenbacher PKCS#1 v1.5 oracle, and padding oracle. Real WebCrypto operations. No backends. No simulated math.

asymmetric-encryption attacks bleichenbacher browser crypto-lab cryptography padding-oracle pkcs1 post-quantum public-key-cryptography rsa rsa-oaep rsa-pss typescript vite

Last synced: 01 Jun 2026

https://github.com/systemslibrarian/crypto-lab-ratchet-wire

Browser-based demo of the Double Ratchet Algorithm — the cryptographic protocol powering Signal, WhatsApp, and Google Messages. Live conversation with forward secrecy, break-in recovery, and key compromise simulation.

aes-gcm browser-demo crypto-compare cryptography double-ratchet forward-secrecy hkdf key-exchange messaging-protocol post-quantum-ready signal-protocol typescript vite x25519

Last synced: 01 Jun 2026

https://github.com/systemslibrarian/cipher-museum

Interactive virtual museum exploring 2,500 years of cryptography — 37 ciphers in 10 exhibit halls with live demos, cryptanalysis tools, and connections to modern & post-quantum systems.

caesar-cipher ciphers cryptanalysis cryptography education enigma historical-cryptography vigenere-cipher

Last synced: 01 Jun 2026

https://github.com/systemslibrarian/crypto-lab-mceliece-gate

Browser-based Classic McEliece demo — the oldest post-quantum KEM (1978), binary Goppa codes, visceral 261KB public key visualization, and four-way comparison against ML-KEM, BIKE, and HQC. No backends. No simulated math.

aes-256-gcm binary-goppa browser code-based crypto-lab cryptography goppa-codes kem lattice mceliece nist post-quantum pqc typescript vite

Last synced: 01 Jun 2026

https://github.com/systemslibrarian/crypto-lab-sphincs-ledger

Browser-based demo of SLH-DSA (SPHINCS+), a hash-based post-quantum digital signature scheme standardized as NIST FIPS 205

browser-demo crypto-lab cryptography digital-signatures hash-based-signatures javascript nist-fips-205 post-quantum-cryptography slh-dsa sphincs-plus

Last synced: 01 Jun 2026

https://github.com/systemslibrarian/crypto-lab-model-breach

Browser-based HiAE threat model case study — AESL, Theorem 1 candidate enumeration, MITM state recovery, byte decomposition, guess-and-determine key recovery. Security claims are contracts. The threat model is the fine print. No backends. No simulated math.

aead aes algebraic-attacks browser-demo crypto-lab cryptography meet-in-the-middle security-analysis threat-modeling typescript vite

Last synced: 01 Jun 2026

https://github.com/systemslibrarian/crypto-lab-blind-oracle-api

Browser-based Rust + Axum + TFHE-rs backend for crypto-lab-blind-oracle — gate-bootstrapped homomorphic addition on FheUint8 ciphertexts. Holds only a ServerKey. Cannot decrypt its own output.

axum crypto-lab cryptography fhe homomorphic-encryption privacy rust tfhe webassembly

Last synced: 01 Jun 2026

https://github.com/systemslibrarian/crypto-lab-dilithium-seal

Browser-based demo of ML-DSA (CRYSTALS-Dilithium), the lattice-based post-quantum digital signature scheme standardized as NIST FIPS 204 in August 2024. Sign, verify, and seal documents — quantum-resistant.

browser-demo crypto-lab cryptography crystals-dilithium digital-signatures lattice-cryptography ml-dsa module-lwe nist-fips-204 post-quantum-cryptography typescript vite webcrypto

Last synced: 01 Jun 2026

https://github.com/devehab/cryptotools

An educational cryptography toolkit in Arabic that provides hands-on learning for various cryptographic concepts including wallet generation, encryption/decryption, hashing, and digital signatures. All operations are performed client-side for maximum privacy and security.

cryptography digital-signatures encryption-decryption encryption-decryption-tool hash-functions open-source wallet-generator

Last synced: 09 Feb 2026

https://github.com/vaibhavdixit09/taskmanagemnetfrontend

TaskMaster Pro - Advanced Task Management System with Google Authentication

cron cryptography css3 expressjs javascript jsx mongodb nodejs passportjs reactjs

Last synced: 26 Feb 2026

https://github.com/crime-trix/metacrypt-cpp

C++20 MetaCrypt authenticated encryption envelope using Windows CNG

aes-gcm cpp cryptography cxx20 encryption pbkdf2 windows

Last synced: 02 Jun 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/aniketc068/atick-python

Standalone Python library for PDF digital signatures — PAdES/CMS, USB tokens, Windows store, Indian eSign, timestamps, LTV and a green-tick appearance Adobe shows as valid. Zero dependencies.

adobe cades cryptography digital-signature esign ltv pades pdf pdf-signature pkcs11 python sign-pdf timestamp

Last synced: 16 Jun 2026

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/atropinetears/atropinetears.github.io

My personal site to not only demonstrate my web design / web development skills, but also to list out my blog posts, projects, resources, and other information.

0xsilene blog cryptography github-io github-pages security web web-design web-development website

Last synced: 27 Feb 2026

https://github.com/gabriel-milan/des_example

Example for encryption/decryption using DES. Compatible with Arduino, Node.js and Python

arduino cipher cryptography nodejs python3

Last synced: 13 Apr 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/duguorong009/md6-impl

MD6 hash implemented in Rustlang

cryptography hash md6 rust-lang

Last synced: 25 May 2026

https://github.com/projects-developer/super-cipher-project

The Super Cipher Project is a cryptographic system designed to provide ultra-high security for sensitive information. Project Includes Source Code, PPT, Synopsis, Report, Documents, Base Research Paper & Video tutorials

btechprojects cipheralgorithm computerscienceprojects cryptography cryptoproject cybersecurity datasecurity mtechprojects securecommunication supercipher

Last synced: 11 Feb 2026

https://github.com/duguorong009/rlwe-encryption-rs

RLWE encryption scheme using Knuth-Yao sampling

cryptography math post-quantum-cryptography rust

Last synced: 10 Jun 2026

https://github.com/mokkunsuzuki-code/stage355

Stage355: Signature Key Status Verification and Revocation Enforcement Layer with signing-time validity checks, Stage354 ledger binding, fail-closed revoked-key rejection, and PQC intent-only protection.

audit cryptography cybersecurity ed25519 evidence fail-closed gpg key-revocation key-rotation key-status ledger ml-dsa pqc qsp signature-verification sigstore supply-chain-security transparency trust verification

Last synced: 23 Jun 2026

https://github.com/super-e/slip39dotnet

Complete .NET implementation of SLIP-0039 Shamir's Secret Sharing with BIP32 support

bip32 bitcoin cryptocurrency cryptography csharp dotnet mnemonic secret-sharing shamir-secret-sharing slip-0039 vibe-coding

Last synced: 13 Apr 2026

https://github.com/audrastump/gcm-encryption-socket

GCM Socket using AES-GCM encryption with a 256-bit key - ensures confidentiality and integrity of data

cryptography cybersecurity encryption-decryption

Last synced: 12 May 2026

https://github.com/4lessandrodev/saas-cryptography

a small project to test encryption as a service with nodejs

cryptography encryption

Last synced: 13 Jun 2026

https://github.com/roydevashish/chacha20-hash-lightweight-cryptographic-hash-function-based-on-chacha20

A lightweight cryptographic hash function inspired by ChaCha20, designed for speed, simplicity, and efficiency in resource-constrained environments. Ideal for embedded systems, research, and educational purposes. Not intended for production use without further cryptanalysis.

chacha20 cryptographic-hash-functions cryptography hash-function

Last synced: 13 Jun 2026

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/aeliot-tm/doctrine-encrypted-bundle

Doctrine Encrypted bundle permits to encrypt/decrypt separate columns of database via Doctrine column types.

ast cryptography decryption doctrine doctrine-extension doctrine-orm encryption php routines symfony-bundle

Last synced: 12 Feb 2026

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://github.com/mikeleo03/rsa-attack-simulation

Create a simulation of RSA Cryptographic Attack based on provided encryption code

cryptography fermat-factorization python3 rsa-attacks wiener-attack

Last synced: 16 Mar 2025

https://github.com/virgilsecurity/virgil-pythia-java

Virgil Pythia SDK allows developers to implement Pythia protocol to create breach-proof passwords, immune to offline and online attacks.

breach-proof-password cryptography encryption java pythia pythia-sdk sdk virgil-pythia

Last synced: 13 Feb 2026

https://github.com/uofsc-fall-2022-math-587-001/homework4

Introduction to the discrete logarithm problem and a comparison of symmetric vs asymmetric ciphers

cryptography discrete-logarithm go latex math

Last synced: 20 Apr 2026

https://github.com/antonio-marasescu/edublock

EduBlock represents a private blockchain platform intended for the sharing of educational records between universities. It was created to serve as my bachelor thesis degree.

angular blockchain cryptography docker expressjs gulp ngrx nodejs rabbitmq redux typedi typeorm typescript

Last synced: 13 Apr 2026

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/autodidaddict/nkeys-hs

Haskell library for encoding and decoding ed25519 keys for the NATS ecosystem

cryptography ed25519 nats nkeys

Last synced: 14 Jun 2026