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/hasnainroopawalla/hashbase

A collection of cryptographic hashing algorithms implemented in Python

cryptography hash-functions hashing hashing-algorithms python

Last synced: 25 Oct 2025

https://github.com/i2rys/diffiequantum

Diffie Hellman merged with HQC.

cryptography diffie-hellman hqc merge pqc

Last synced: 05 Sep 2025

https://github.com/abhayagiri/raho

Python module for simple symmetric encryption built on cryptography

cryptography fernet python python2 python3

Last synced: 25 Mar 2025

https://github.com/scttnlsn/cryptopals

Cryptopals in Rust

cryptography cryptopals

Last synced: 07 Apr 2025

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/loneicewolf/qubes-pentesting

Research on Qubes security. Includes my Progress on My own Attacks on Qubes as well.

attack cryptography loneicewolf qubes

Last synced: 24 Jan 2026

https://github.com/kyj9447/pixseal

Cryptographic image integrity & authenticity verification tool. Detects any image modification via pixel-level validation.

cryptography digital-forensics image-authenticity image-integrity-check image-verification steganography-tool tamper-detection

Last synced: 24 Jan 2026

https://github.com/yermakovsa/erc6492-go

Go library for Ethereum signature verification with EOA, EIP-1271, and ERC-6492 support.

cryptography eip-1271 erc-6492 ethereum go go-ethereum golang signatures wallets web3

Last synced: 01 Jun 2026

https://github.com/ar-io/ar-io-mlflow

MLflow plugin for verifiable ML provenance, anchored to ar.io

ar-io arweave cryptography mlflow mlops provenance verification

Last synced: 13 Jun 2026

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

https://github.com/diegodromer/guardara

Guardara – Seu cofre digital inteligente. De senhas “fortinhas” a criptografia de dar inveja a espião da CIA. 🔐

cloud-security cryptography dart encryption firebase flutter hive mobile mobile-app mvvm open-source password-generator password-manager secure-storage tfa two-factor-authentication

Last synced: 01 May 2026

https://github.com/viveksahu26/cobra_cli

chit-chat: send encrypt and decrypt messages in your style

cobra-cli cryptography go

Last synced: 04 Jul 2025

https://github.com/peterfritz/time

Get the current time, timezone, and a language-sensitive representation of the current time in the local timezone based on the user's IP. Create and validate signed date tokens.

cryptography date time

Last synced: 12 Jun 2025

https://github.com/validpay-io/validpay-react-native-sdk

Official React Native SDK for ValidPay CVCP — QR-based cryptographic document verification for mobile apps.

check-fraud cryptography document-verification mobile-sdk qr-verification react-native

Last synced: 15 Jun 2026

https://github.com/luqastw/passtw

passtw is a Python-based random password generator + encrypted local vault, using AES‑128 encryption and a cryptographic key.

cli cryptography password password-generator python security security-tools terminal

Last synced: 17 Mar 2026

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/atticusrussell/hwsw-crypto-xilinx-template

Template for using Xilinx Vivado and SDK with CMPE-661 (HWSW Crypto) projects in a version control friendly way.

cmpe661 cryptography hwsw-crypto version-control vivado xilinx xilinx-sdk xilinx-vivado zybo

Last synced: 07 Feb 2026

https://github.com/quantumcoinproject/hybrid-pqc

Hybrid Post Quantum Cryptography

cryptography post-quantum-cryptography

Last synced: 01 Feb 2026

https://github.com/yumevote/voting-iot-machine-ui

A emulated GUI application which acts as a POS IOT Machine (DRE) to allow people to vote for election on the Maschain

arduino cryptography iot python tkinter-gui

Last synced: 15 Feb 2026

https://github.com/eroydev/bip39-rusty

Rust library for BIP-39 mnemonic system

bip39 bitcoin cryptocurrency cryptography rust

Last synced: 22 Feb 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/goseind/kryptolearn

Krypto Learn - Grundlegende Konzepte der Kryptographie lernen und verstehen

cryptography expo javascript kryptografie react react-native

Last synced: 22 Feb 2026

https://github.com/inanepain/id-forge

A lightweight, versatile PHP library for generating and encoding unique identifiers. It supports base32, base58, base64, nanoid, snowflakeid, uuid, and ulid, providing fast, secure, and flexible solutions for ID generation and encoding in modern applications.

base32 base58 base64 cryptography encoding id-forge id-generation inanepain library nanoid php snowflakeid ulid unique-identifier uuid

Last synced: 14 Jan 2026

https://github.com/systemslibrarian/crypto-lab-mpcith-sign

Browser-based MPC-in-the-Head signature demo — additive secret sharing, SHA-256 commitments, Merkle proofs, Fiat-Shamir transform, N-party simulation with hidden-view challenge, toy PERK permutation witness. Post-quantum signatures from hash functions alone. NIST Round 2: Mirath, PERK, FAEST. No backends. No simulated math.

crypto-lab cryptography digital-signatures fiat-shamir mirath mpc-in-the-head perk permuted-kernel-problem post-quantum secret-sharing zero-knowledge

Last synced: 01 Jun 2026

https://github.com/systemslibrarian/crypto-lab-hqc-timing-break

Browser demo of the first cache-timing full-decryption oracle attack on post-quantum HQC (Dong & Guo, IACR 2026/693) — showing how Clang -O3 silently rewrites constant-time Reed-Muller decoding into secret-dependent branches. Real HQC math, deterministic leak model, Soft-ISD key recovery.

cache-timing-attack code-based-cryptography compiler-vulnerability constant-time cryptanalysis crypto-lab cryptography flush-reload hqc information-set-decoding kem nist-pqc post-quantum-cryptography reed-muller-code side-channel-attack soft-isd

Last synced: 01 Jun 2026

https://github.com/systemslibrarian/crypto-lab-mac-race

Browser-based MAC demo — HMAC, CMAC, Poly1305, and GHASH compared with live length extension attack, timing attack, and nonce reuse demonstrations. Real WebCrypto operations. No backends. No simulated math.

aes-gcm amc browser cmac crypto-lab cryptography ghash hmac length-extension-attack message-authentication nist poly1305 timing-attack typescript vite

Last synced: 01 Jun 2026

https://github.com/pereirar3/cryptography-cipher

Simple and complex encryption algorithms in c++ [objective: learning] - IN UPDATE

cipher-algorithm cpp cryptography

Last synced: 04 Sep 2025

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-biham-lens

Browser-based demo of differential cryptanalysis — the attack co-invented by Eli Biham and Adi Shamir (Israel, 1990) that broke DES. Live attack on a toy SPN cipher, DDT visualization, and the story of how Biham used his own attack to design Serpent.

adi-shamir block-cipher browser-demo cryptanalysis crypto-compare cryptography des difference-distribution-table differential-cryptanalysis eli-biham s-box serpent spn-cipher typescript vite

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/dheurtev/cryptopyutils

A high-level Python3 cryptography library using cryptography

administration cryptography development python python-3 python3

Last synced: 23 Apr 2025

https://github.com/edoars/public-key-crypto-notes

LaTeX notes (in italian) for the undergraduate Public-key Cryptography course at University of Roma Tre

cryptography latex-notes math notes public-key-cryptography

Last synced: 10 Feb 2026

https://github.com/karim-agha/rc5

RC5 Cipher Implementation in Rust

cryptography rust security

Last synced: 24 Mar 2025

https://github.com/lazula/cryptopals

A collection of solutions for the challenges at cryptopals.com in C89

cryptography ctf

Last synced: 08 Jul 2025

https://github.com/chardoncs/minotp

Simple OTP library for Rust.

cryptography hotp one-time-password otp rust totp

Last synced: 10 Feb 2026

https://github.com/osennij-morok/korobu

A tool for encryption and decryption written in Rust

cryptography egui rust

Last synced: 10 Sep 2025

https://github.com/hungrybluedev/python-basic-cryptography

Implemenation of basic Cryptography techniques and algorithms, along with tools useful for analysis.

algorithm cryptography python3

Last synced: 08 Apr 2025

https://github.com/ametel01/tatsumaki

Token mixer for Starknet

cairo cryptography privacy starknet

Last synced: 28 Feb 2026

https://github.com/moeenn/go-token

Generate crypto-random strings (i.e. tokens) of any length

crypto-random-string cryptography go golang token

Last synced: 11 Mar 2026

https://github.com/saikiranmatta/false-bottom

False Bottom, a deniable encryption algorithm.

cryptography deniable-encryption encryption

Last synced: 14 Feb 2026

https://github.com/ben854719/trade-transfer-workflow-optimizer

This AI portfolio tools securely analyzes asset allocation, sector exposure, and performance. Its graph compares real and predicted close prices, enhanced with sentiment indicators such as “Confident” and “Surprised.” An avatar assistant provides user guidance combining technical accuracy with intuitive explanations.

agentic-ai avatar cryptography emotion-analysis encryption gemini json langgraph langraph machine-learning-algorithms matplotlib mcp-server numpy opencv-python pandas python pytorch rs256 seaborn

Last synced: 15 Feb 2026

https://github.com/daisvke/dcrypt

dcrypt is a file encryption/decryption tool that adds a custom header to encrypted files, storing essential metadata for decryption and management of the encrypted content.

aes-128-cbc c cryptography encryption-decryption keygen

Last synced: 25 Mar 2025

https://github.com/t-bast/black-mango

An IBE implementation using Akka

akka cryptography

Last synced: 27 Feb 2025

https://github.com/gabrielmajeri/pp-project

Procedural programming project for winter 2018 course

c cryptography pattern-matching

Last synced: 08 Apr 2025

https://github.com/yawning/tuplehash

NIST SP 800-185 TupleHash (mirror)

cryptography cryptography-algorithms go golang sha3

Last synced: 29 May 2026

https://github.com/shaina-gh/dss

Java implementation of the Digital Signature Standard (DSS) for message integrity and authenticity verification.

cryptography cryptography-algorithms digital-signature-algorithm digital-signature-authentication dss java signature-verification

Last synced: 22 Apr 2025

https://github.com/tinyadapter/litecrypt.core

A Simple C# Cryptography Package Based on .NET Core

cryptography dotnet-core

Last synced: 16 Apr 2026

https://github.com/sug0/bbs-accum

Rust implementation of the accumulator commitment scheme described in https://eprint.iacr.org/2025/2081

accumulator commitment-schemes cryptography rust

Last synced: 01 Jun 2026

https://github.com/m-torhan/securechat

Secure chat using double ratchet algorithm.

cryptography python

Last synced: 25 Feb 2026

https://github.com/dhcgn/crypto

Wrapper of secure encryption implementation to simplify the usage.

cryptography encryption go golang

Last synced: 17 Mar 2025

https://github.com/debugagrawal/221b

A thriller mystery game where you have to find hidden clues and messages in each level and try to decrypt them to move to next levels "So Let's Ignite your Detective minds and help SHERLOCK"

ciphers console-game cryptography puzzle

Last synced: 08 Feb 2026

https://github.com/wzyskq/polybius_square_pro

An improved encryption and decryption system from the Polybius Square.

cryptography

Last synced: 14 Jan 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-lms-xmss

Browser-based Leighton-Micali Signatures (LMS) and Hierarchical Signature System (HSS) demo per RFC 8554 and NIST SP 800-208. LM-OTS + Merkle trees + two-level HSS, with the state-management story told honestly.

crypto-lab cryptography digital-signatures hash-based-cryptography hash-based-signatures hierarchical-signature-system hss leighton-micali-signatures lm-ots lms merkle-signatures merkle-tree nist-sp-800-208 post-quantum-cryptography rfc-8554 sha-256 stateful-signatures winternitz xmss

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-hqc-vault

Browser-based HQC demo — Hamming Quasi-Cyclic post-quantum KEM with perfect correctness, Reed-Muller/Reed-Solomon decoding, and three-way comparison against BIKE and ML-KEM. No backends. No simulated math.

aes-256-gcm browser code-based crypto-lab cryptography hqc kem nist-pqc post-quantum quasi-cyclic reed-muller reed-solomon typescript vite

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/elfincafe/anngo

Ann*Go is the cryptography tool written in Go language.

cryptography go

Last synced: 12 Mar 2026

https://github.com/systemslibrarian/crypto-lab-stego-suite

Browser-based steganography suite — LSB substitution, DCT-domain hiding, and adaptive embedding with live chi-squared steganalysis. Hide the message, not just the content.

browser-crypto chi-squared-test covert-channel crypto-lab cryptography dct digital-watermarking image-processing lsb-steganography privacy security steganalysis steganography typescript vite

Last synced: 01 Jun 2026

https://github.com/systemslibrarian/crypto-lab-iron-serpent

Browser-based demo of Serpent-256, the AES finalist with the largest security margin — featuring encrypt/decrypt, round comparison visualization, and live performance benchmarks

aes-finalist argon2id block-cipher browser-demo crypto-lab cryptography hmac javascript serpent symmetric-encryption

Last synced: 01 Jun 2026

https://github.com/systemslibrarian/crypto-lab-timing-oracle

Browser-based timing side-channel attack demo — string comparison leakage, HMAC verification timing, RSA private key bit leakage, and cache-timing attacks with real performance.now() measurements and constant-time defenses. No backends. No simulated timing.

browser cache-timing constant-time cryptanalysis crypto-lab cryptography hmac kocher lucky-thirteen rsa security side-channel timing-attack typescript vite

Last synced: 01 Jun 2026

https://github.com/erik-castro/devsecurity

Colecao de 5 livros tecnicos open-source sobre seguranca de software em portugues (PT-BR): Security-Driven Development, DevSecOps, Analise de Malware, Concorrencia Segura e Criptografia Engenheira. C++17/20, CVEs documentados, 300K+ linhas.

application-security books concurrency cplusplus cryptography cybersecurity devsecops encryption fuzzing malware-analysis open-source owasp post-quantum-cryptography pt-br reverse-engineering secure-coding security thread-safety tls

Last synced: 25 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-patron-shield

Browser-based demo of two-server Information-Theoretic Private Information Retrieval (IT-PIR) — applied to library catalog privacy. Because patrons deserve mathematical guarantees, not just policy promises.

crypto-compare cryptography information-theoretic-security library-privacy pir private-information-retrieval xor

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-silent-tally

Browser-based demo of secure multi-party computation — five hospitals compute combined enrollment without revealing individual counts. Shamir SSS · additive homomorphism · GF(2⁶¹-1) · no trusted third party.

additive-homomorphism cryptography finite-field information-theoretic-security lagrange-interpolation mpc secure-multiparty-computation shamir-secret-sharing

Last synced: 01 Jun 2026

https://github.com/r1b/md5

[WIP] The MD5 Message-Digest Algorithm

cryptography r6rs racket scheme

Last synced: 21 Jan 2026

https://github.com/mberry/makwa-sharp

C# implementation of the Makwa password hashing algorithm

cryptography hashing passwords

Last synced: 25 Mar 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/psygo/cryptography_course

A Cryptography Course from Udemy

cryptography python

Last synced: 07 Dec 2025

https://github.com/akornatskyy/wheezy.security

A lightweight security/cryptography library

cryptography python security wheezy

Last synced: 28 Apr 2025

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/mrxx0/ft_ssl_md5

An introduction to cryptographic hashing algorithms.

cryptography security ssl

Last synced: 03 Aug 2025

https://github.com/mokkunsuzuki-code/stage356

Stage356: Runtime Verification and Fail-Closed Execution Gate with Stage355 integrity binding, runtime decision enforcement, CI context detection, and PQC intent-only protection.

audit ci-cd cryptography cybersecurity evidence execution-gate fail-closed github-actions hash-chain integrity key-revocation key-status ml-dsa pqc qsp runtime-verification signature-verification supply-chain-security trust verification

Last synced: 23 Jun 2026

https://github.com/c14it0n/torgeforge

🔥 Generador de alto rendimiento de direcciones .onion v3 personalizadas para Tor con interfaz interactiva

cli-tool cryptography ed25519 hidden-service onion privacy rust security tor vanity-address

Last synced: 13 Jun 2026

https://github.com/masato-ro/kitana_cryptool

A versatile, cross-platform cryptographic utility built with C++, FLTK, and OpenSSL. Features include AES encryption, RSA key generation, password generation, and hash matrix verification.

aes-encryption cpp cross-platform cryptography fltk hashing openssl password-generator rsa-keys security

Last synced: 14 Jun 2026

https://github.com/lcian/klein-cryptanalysis

🔓 Cryptanalytic attack on the KLEIN embedded block cipher

cryptanalysis cryptography

Last synced: 08 Jun 2026

https://github.com/vallshmeleff/radiorandgentwo

A mock-up of a Java application that uses an Internet radio digital stream to encrypt SMS messages with Vernam's code. Works

cryptography

Last synced: 23 Jun 2026

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/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/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/tsovak/a-cryptographic-hash-function

A Cryptographic Hash Function

cpp cryptography hash-functions

Last synced: 02 Apr 2025

https://github.com/ppad-tech/sha512

Pure Haskell SHA-512, HMAC-SHA512

cryptography hashing haskell sha2 sha512

Last synced: 23 Jun 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/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/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/kevincharm/blstoise

BLS12-381 + pairings + RFC9380 + BLS sigs

bls bls12-381 cryptography

Last synced: 28 Feb 2026

https://github.com/bitcoin-evo/bitcoinevo

BitcoinEvo Core integration/staging tree

bitcoinevo c-plus-plus cryptocurrency cryptography p2p

Last synced: 03 Apr 2025