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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/thomasthaddeus/algorithmselector

Explore our extensive Algorithms Repository, featuring a diverse range of algorithms from computational methods to data structures, cryptographic techniques, and AI. Ideal for education, research, and practical application, each algorithm is well-documented, tested, and optimized for performance and readability.

ai algorithms computational-algorithms computer-science cryptography data-compression data-structures educational-resource game-theory graph-theory machine-learning network-flow open-source optimization python

Last synced: 01 Mar 2026

https://github.com/cryptpad/blueprints

CryptPad research & development repository

algorithms cryptography cryptpad diagrams research

Last synced: 01 Mar 2026

https://github.com/davidbuchanan314/roll13

an (unfinished) TLSv1.3 client in pure python, hand-rolled from first principles.

aes aes-gcm cryptography hmac hmac-sha256 python python3 secp256r1 sha256 tls tls13

Last synced: 22 Aug 2025

https://github.com/smaranjitghose/pyconfidentiality

Adding secrecy to your emails with RSA

cryptography email-sender python rsa smtp

Last synced: 03 Sep 2025

https://github.com/saeed0xf/black-hat-ctf

This CTF event was organised by Data Science analytics and Cyber Security club at the annual Tech Fest Prajyukttam 🎆, Assam Don Bosco University 🎓

binary-exploitation capture-the-flag cryptography ctf ctf-challenges ctf-tools digital-forensics web-exploitation website

Last synced: 01 Mar 2025

https://github.com/darconeous/msecret-rust

Tool for deriving various types of keys from known symmetric secrets.

command-line-tool cryptography ecc-cryptography key-derivation passphrase rsa-cryptography rust secret-sharing

Last synced: 19 Jan 2026

https://github.com/anvilco/node-encryption

RSA and AES Encryption helpers

aes cryptography encryption js node rsa

Last synced: 04 Jul 2025

https://github.com/raymondfx/uptechafrica

UpTechAfrica East Africa Blockchain Hackathon - Whistleblower Solution

blockchain cryptography whistleblowing

Last synced: 11 Mar 2025

https://github.com/dinochiesa/apigee-custompolicy-rsacrypto

This is a custom Apigee policy, implemented in Java, that performs RSA Encryption and Decryption of data or message payloads, or RSA signing of data or message payloads, or verification of such signatures.

apigee cryptography rsa

Last synced: 10 Jun 2025

https://github.com/ntdls/talkster

Secure chat instant messaging server and client, offering multi-layered peer-to-peer encryption.

communication cryptography privacy security

Last synced: 21 Apr 2026

https://github.com/h-alice/python-ecc-keyexchange

A simple PoC for ECC key exchange in Python.

cryptography elliptic-curve-cryptography python security

Last synced: 12 Oct 2025

https://github.com/dineshssdn-867/cryptography

Although there are different methods to encrypt and decrypt messages, we'll focus on a linear algebra-based cipher, the Hill cipher, which uses a matrix as a cipher to encode a message or an image, and it's extremely difficult to break when a large matrix is used.

colab-notebook cryptography hill-cipher linear-algebra matrix-multiplication

Last synced: 26 Oct 2025

https://github.com/protdos/zyphor

Zyphor: A quantum-safe, fully anonymous chat protocol ensuring complete security and metadata protection.

anonymity chat cryptography e2ee encryption messaging metadata perfect-forward-secrecy post-quantum-cryptography privacy protocol security zero-knowledge zero-trust

Last synced: 02 Mar 2026

https://github.com/pmuens/time-lock-puzzle

Time-Lock Puzzle schemes implemented in Go and compiled to WebAssembly

cryptography encryption homomorphic-encryption homomorphic-time-lock-puzzle time-lock time-lock-puzzle

Last synced: 15 May 2025

https://github.com/juri/fernet

Fernet cryptography format implementation in Swift

cryptography fernet swift

Last synced: 12 Oct 2025

https://github.com/i-umairkhan/ecdsa_node

Transactions via ECDSA cryptography algorithm.

cryptography ecdsa-cryptography express javascript nodejs react

Last synced: 14 Apr 2026

https://github.com/jitendragangwar123/ekolance-solidity-cohort-2

This repository contains Solidity programming exercises that were discussed during the Ekolance Solidity Cohort 2. It serves as a resource for learning and practicing Solidity, a programming language used for developing smart contracts on blockchain platforms like Ethereum.

blockhain-tecnology cryptography ethereum solidity

Last synced: 07 Jan 2026

https://github.com/volhovm/ocd-tasks

Solutions for the "An Introduction to Mathematical Cryptography" textbook by Hoffstein, Pipher, Silverman

cryptography

Last synced: 16 Oct 2025

https://github.com/samuel-lucas6/padme.net

A .NET implementation of PADMÉ padding.

crypto cryptography padding padme padme-padding

Last synced: 23 Jan 2026

https://github.com/tom-weatherhead/helix

An RSA encryption and uuencoding/uudecoding application from 2002.

cpp cryptography encryption rsa-encryption uudecode uuencode

Last synced: 09 Oct 2025

https://github.com/newyaroslav/crypto-json

C ++ library for JSON encryption with COMMENTS

cryptography json json-parser strip-json-comments

Last synced: 15 May 2026

https://github.com/ngirimana/rsa

RSA algorithm is asymmetric cryptography algorithm. Asymmetric actually means that it works on two different keys i.e. Public Key and Private Key. As the name describes that the Public Key is given to everyone and Private key is kept private.

cryptography css3 html5 network-security rsa

Last synced: 07 May 2026

https://github.com/gotz1480/bitcoin-cryptography-ecc

Study of bitcoin elliptic curve cryptography (ECC)

bitcoin cryptography ecc-cryptography elliptic-curve-cryptography

Last synced: 07 Apr 2025

https://github.com/tangle-network/anonima

A threshold signature oracle node.

cryptography

Last synced: 14 Sep 2025

https://github.com/lovasoa/sha_hashes

Collection of sha hashes of common passwords

cracking cryptography security sha1 website whitehat

Last synced: 28 Jan 2026

https://github.com/m3dzik/libcrypto

Cryptographic utilities for Java and JavaScript

aes aes-gcm argon2 crypto cryptography curve25519 encryption hashing security x25519

Last synced: 09 Apr 2025

https://github.com/nulltea/contangle-zkcp

Universal Zero Knowledge Contingent Payments (on hold)

bitcoin cryptography ethereum payment zero-knowledge

Last synced: 19 Apr 2026

https://github.com/gunh0/whitebox_cryptanalysis

🔒 Whitebox Cryptographic Code Example

cryptography security wbc

Last synced: 25 Mar 2025

https://github.com/crnobog69/polychaos

PolyChaos 🔐 | систем шифровања - encryption system

cryptography encryption encryption-decryption python secure security security-tools simple simple-app simple-project

Last synced: 06 Feb 2026

https://github.com/scar26/votesec.io

An automated voting platform based on Azure Blockchain that offers complete anonymity, instantaneous results and a plethora of other features

blockchain cosmosdb cryptography iot node-chakra solidity truffle

Last synced: 03 Mar 2026

https://github.com/virgilsecurity/virgil-ratchet-x

Virgil Security Ratchet Objective-C/Swift SDK provides an implementation of the Double Ratchet algorithm, which is used by parties to exchange encrypted messages based on a shared secret key.

cryptography doubleratchet encryption perfect-forward-secrecy pfs ratchet

Last synced: 14 Jun 2025

https://github.com/hobbyquaker/passwd-file

Node.js Password File CLI Tool and Lib :closed_lock_with_key:

cli cryptography file hash login nodejs password pbkdf2 salt security sha512

Last synced: 24 Apr 2026

https://github.com/anuja-rahul/python-datavault

Encrypt and safeguard your valuable data with this python encryption/decryption module.

aes-256 cbc-aes-encryption cryptography fernet-cryptography oops-in-python

Last synced: 19 Jun 2026

https://github.com/ironcorelabs/ironoxide-swift

IronCore Labs SDK for Swift Applications

cryptography proxy-re-encryption swift transform-encryption

Last synced: 02 Jul 2025

https://github.com/tommasoazz/cryptography-notes

Notes for studying, preparing homeworks and exams of the course "Cryptography" of University of Bologna, Master Degree in Computer Science (LM Informatica), A.Y. 2021/2022.

computer-science cryptography notes

Last synced: 11 Feb 2026

https://github.com/haskell-cryptography/cryptography-blake3

A wrapper around cryptography-blake3-bindings which is more Haskell-friendly

blake3 cryptography haskell

Last synced: 13 May 2026

https://github.com/shaharashe/cryptography_modules

This repository features Python implementations of various cryptographic algorithms, including RSA, ElGamal, and Vigenère cipher. It serves as a resource for learning and experimenting with cryptographic techniques. Contributions are welcome!

algorithm algorithms cryptography decryption encryption module modules python python3 security-tools

Last synced: 02 Mar 2026

https://github.com/trailofbits/rfc8785.py

A pure-Python implementation of RFC8785 (JSON Canonicalization Scheme)

canonicalization cryptography json python serialization

Last synced: 15 Apr 2025

https://github.com/hayr-hotoca/react-native-chacha20-poly1305

ChaCha20-Poly1305 encryption/decryption for React Native. Native implementations make sure it has the fastest performance.

256-bit aes android chacha20 chacha20-poly1305 chacha20poly1305 cipher cipher-algorithms cross-platform cryptography encryption encryption-algorithms ios javascript react react-native reactjs typescript

Last synced: 07 Oct 2025

https://github.com/robb-fr/cryptography-diffie-beepboop

2021 COM-401 course's at EPFL, coding homeworks. Sage kernel for Jupyter Notebook. Cryptography and Security.

capture-the-flag cryptography sagemath

Last synced: 06 Jun 2026

https://github.com/saeed0x1/black-hat-ctf

This CTF event was organised by Data Science analytics and Cyber Security club at the annual Tech Fest Prajyukttam 🎆, Assam Don Bosco University 🎓

binary-exploitation capture-the-flag cryptography ctf ctf-challenges ctf-tools digital-forensics web-exploitation website

Last synced: 04 Mar 2026

https://github.com/tankerhq/sdk-rust

Tanker client-side encryption SDK for Rust

cryptography encryption end-to-end privacy rust sdk security tanker

Last synced: 09 Apr 2025

https://github.com/pirate-emperor/cipherx

CipherX is a verification project for Advanced Encryption Standard (AES-128) using Universal Verification Methodology (UVM). It leverages Verilog, SystemVerilog, and Python to ensure robust encryption algorithm validation, integrating comprehensive UVM components and tests.

aes-128 cryptography cryptography-algorithms dataencryption dataencryptionstandards digitaldesign encrytption hardwareverification python security testing-framework uvm verification verilog

Last synced: 26 Jan 2026

https://github.com/mobilecoinfoundation/rand

A platform abstraction layer providing a cryptographic RNG

cryptography no-std random rng

Last synced: 26 Jul 2025

https://github.com/thotypous/keccak-bsv

Bluespec SystemVerilog implementation of the Keccak primitive (SHA-3)

bluespec cryptography hardware-designs keccak sha3

Last synced: 19 Mar 2026

https://github.com/uncomputable/tackling-bulletproofs

In-depth survey into what Bulletproofs are and how they work

cryptography learning mathematics pdf tutorial zero-knowledge-proof

Last synced: 19 Mar 2026

https://github.com/azlibdar/caesar-cipher

Caesar Cipher using JavaScript

caesar-cipher cipher-algorithms cryptography

Last synced: 31 Mar 2025

https://github.com/moeraorg/java-moeralib

Java library to interact with Moera decentralized social network

cryptography decentralized java java-library library maven moera social-network

Last synced: 23 Feb 2026

https://github.com/seigtm/rsa

A simple C# code that allows you to encrypt and decrypt huge numbers using the RSA algorithm.

biginteger bigintegers cryptography csharp encryption rsa rsa-algorithm rsa-cryptography rsa-encryption rsa-key-encryption

Last synced: 20 Apr 2025

https://github.com/pavelkryukov/putty-ci

PuTTY with continuous integration

cryptography putty puttygen ssh ssh-client

Last synced: 14 May 2026

https://github.com/pastesafe/pastesafe.github.io

instant web cryptography. encrypt in realtime as you type. share and decrypt ciphertext.

cryptography web-app

Last synced: 10 Mar 2026

https://github.com/crocs-muni/eacirc-utils

Utils for experiment creation and result postprocessing

automation cryptography randomness research-tool

Last synced: 31 Jan 2026

https://github.com/ntdls/secure-archive

Secure Archive is a file encryption utility that provides multiple encryption algorithms, variable compression levels, secure file delete, self-extracting archives and more.

cryptography file-management file-system private security showcase

Last synced: 27 Mar 2026

https://github.com/ryanoutcome20/cryptify

A WinForms based file Encryption system.

aes cryptography csharp des filesystem tools tripledes windows windows-forms

Last synced: 25 Feb 2026

https://github.com/allouis/lamport-ots

🔏 Lamport One-Time Signatures in JavaScript 🔏

cryptography lamport ots signature

Last synced: 05 Apr 2025

https://github.com/zkdotim/zkim-file-format

Secure encrypted file format with three-layer encryption, integrity validation, and privacy-preserving search capabilities

blake3 cryptography encryption file-format privacy searchable-encryption security typescript xchacha20 zero-knowledge

Last synced: 15 Jan 2026

https://github.com/kehiy/go-secp256k1

a bitcoin libsecp256k1 binding for golang. [WIP]

binding bitcoin c cgo cryptography go golang libsecp256k1 nostr

Last synced: 02 Mar 2025

https://github.com/blackm0re/pyotp2289

A pure Python implementation of "A One-Time Password System" - RFC-2289

2289 cryptography freebsd otp password python security unix

Last synced: 21 Aug 2025

https://github.com/gunh0/merkle-tree

🌲 Merkle Tree in Go

cryptography golang hash

Last synced: 07 Jul 2025

https://github.com/hpgrahsl/rhd-csflc-kafka-connect-demos

Demo Scenarios discussed in my Red Hat Developers article series

apachekafka cryptography encryption-decryption kafka kafka-connect security

Last synced: 18 Feb 2026

https://github.com/stackoverflowexcept1on/roast

Rust implementation of ROAST (Robust Asynchronous Schnorr Threshold Signatures) with cryptography by Zcash Foundation

cryptography elliptic-curves schnorr schnorr-signatures threshold-cryptography threshold-signature

Last synced: 18 Sep 2025

https://github.com/mail4metablocks/cryptographic-protocols

zksnarks,zkstarks Cryptographic protocols implementation using Rust

cryptography privacy rust

Last synced: 14 Jan 2026

https://github.com/swift-libp2p/swift-libp2p-crypto

Core LibP2P cryptography API for commonly used Keys, Hashes and Ciphers

cryptography libp2p multiformats

Last synced: 22 Jul 2025

https://github.com/cmason3/vaulty.rs

Vaulty in Rust - Encrypt/Decrypt with ChaCha20-Poly1305

chacha20-poly1305 cryptography rust-lang scrypt sha256

Last synced: 26 Jul 2025

https://github.com/mlh-fellowship/chamberofsecrets-backend

Sprint 2 Project for MLH Fellowship made by Aman Sharma, Suhani Chawla, Saumya Gandhi.

cryptography data-security digi-locker django-rest-framework docusaurus2 ethical-data harry-potter

Last synced: 01 Aug 2025

https://github.com/vsrc/playground

My personal sandboxed experimenting lab

bitcoin cryptocurrency cryptography golang

Last synced: 16 May 2026

https://github.com/aman-17/rabin-cryptosystem

Implementation of Rabin PKC in python

cryptography encryption python rabin-cryptosystem

Last synced: 20 Mar 2025

https://github.com/cmason3/vaulty.go

Vaulty in Go - Encrypt/Decrypt with ChaCha20-Poly1305

chacha20-poly1305 cryptography ecdh golang scrypt sha256 x25519

Last synced: 26 Jul 2025

https://github.com/jalaj711/go-des

GoLang implementation of DES, 3DES (128-bit key) and 3DES (192-bit key) with support for ECB, CBC, CFB and OFB modes.

3des cryptography des golang symmetric-cryptography

Last synced: 29 Jul 2025

https://github.com/xtrendence/native-encryption

My first mobile app developed using React Native. A simple app that allows the user to use AES-256 to encrypt/decrypt data.

aes-encryption android cross-platform cryptography encryption ios mobile-app react react-native reactjs

Last synced: 08 Apr 2026

https://github.com/maxpat78/cryptopad

A simple Notepad supporting ZIP AES-256 encrypted documents, coded in Python

aes cryptography encryption notepad security text-editor zip zipfile

Last synced: 12 Apr 2025

https://github.com/shinbatsu/tryhackme-awesome

[👾] TryHackMe / tryhackme -The Comprehensive list of rooms (1000+). Ordered by popularity. Solutions, badges, points.

awesome-list cryptography cyber-security list reverse-engineering tryhackme

Last synced: 07 Sep 2025

https://github.com/ishan-surana/cryptosystems

The 𝚌𝚛𝚢𝚙𝚝𝚘𝚜𝚢𝚜𝚝𝚎𝚖𝚜 package offers a suite of classes and functions for both symmetric and asymmetric encryption, signature-verification, hashing algorithms, key exchange protocols as well as mathematical utility functions. Docs at https://cryptosystems.readthedocs.io.

asymmetric-cryptography bcrypt cryptography cryptography-algorithms cryptography-library cryptosystems gmp gmplib hashing-algorithm key-exchange-protocol mathematical-functions mathematical-utilities python-package python3 signature-verification symmetric-key-cryptography

Last synced: 09 Jul 2025

https://github.com/belajarqywok/wintrapd

crafting malware, presentation and discussion material for network and computer security courses. [ Group - 2 ]

cmake cryptography llvm-clang malware metasploit-framework win32api

Last synced: 11 Jan 2026

https://github.com/jadnohra/zig-crypto-bench

Crypto benchmarks: Zig vs Rust performance comparison.

benchmark cryptography perfromance rust zig

Last synced: 18 May 2026

https://github.com/cizr/digital-steganography-images

A Python-based tool for concealing confidential information within images.embed and extract data seamlessly, adding an extra layer of privacy to your images.

algorithms cryptography digitalforensics python steganography

Last synced: 22 Mar 2025

https://github.com/victorzhang2014/zrcryptographyoc

ZRCryptographyOC, a set of cryptographic methods which provides an easily way to call. It includes RSA,AES,DES,MD5,SHA1,SHA224,SHA384,SHA512 algorithms.

aes cryptography ios md5 rsa sha1 sha224 sha256 sha512

Last synced: 06 Apr 2025

https://github.com/functionally/crypto-lean4

Implementation of various cryptographic functions in Lean4

cryptography elliptic-curves lean4

Last synced: 03 Feb 2026

https://github.com/kryptokrona/kryptokrona-wallet-backend-js

Kryptokrona library in JS/TS for building decentralized private communication and payment systems.

blockchain crypto cryptocurrency cryptography decentralized distributed-systems javascript kryptokrona nodejs typescript web3 xkr

Last synced: 17 Jan 2026

https://github.com/dyslex7c/zk-election

Cryptography-driven and privacy-preserving election framework with zk-SNARKs

circom cryptography election voting voting-application zero-knowledge zkp zksnarks

Last synced: 03 Feb 2026

https://github.com/nsk89/netcrypt

simplifying socket data stream cryptography using RSA public keys and AES data encryption, using PyCryptodome cryptographic primitives

aes-encryption cryptography network-secuirty pycryptodome python python3 rsa-encryption socket-communication

Last synced: 25 Aug 2025

Cryptography Awesome Lists
awesome-cryptography 272 awesome-blockchain-rust 108 Computer-Science-Resources 51 awesome-crypto-papers 102 awesome-he 90 awesome-substrate 165 awesome-ctf-resources 248 awesome-cryptography-rust 80 awesome-post-quantum 161 awesome-zama 344 Library-of-Ethereum 138 awesome-algorand 220 foundational-knowledge-for-programmers 53 awesome-ethereum-finance 93 awesome-infosec 83 awesome-risc0 46 Blockchain-Guide 538 tryhackme-awesome 1,057 bitcoin-history 137 awesome-position-based-quantum-cryptography 68 awesome-client-side-gpu 31 awesome-anonymity-papers 118 fucking-awesome-cryptography 195 free-cryptography-resources 73 awesome-julia-security 129 awesome-blockchain 30 awesome-bitcoin-internals 45
Cryptography Categories
Rooms 1,046 Frameworks and Libs 343 Contributed talks, posters and presentations 295 The list 248 Talks, posters, and presentations 243 Papers 173 Cryptography 161 Tutorials 158 Resources 154 Research papers and publications 141 Uncategorized 128 2018 101 Tools 101 MEV 89 Blockchain Explorers 89 Blockchain Playgrounds 81 Learning Resources 78 Blockchains 72 Research Groups 72 Misc 67