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/haneenmahd/hashable

A Client-Side Gateway for users to interact play and test with cryptography 🀩

api-gateway client-side-cryptography cryptography gateway hashing hashing-in-js server

Last synced: 03 Jul 2025

https://github.com/synonymdev/sodium-react-native

React native wrapper for libsodium crypto library

cryptography libsodium react-native sodium

Last synced: 04 Mar 2026

https://github.com/fcasal/cryptoutils.jl

Cryptography and number-theory primitives in Julia

continued-fractions cryptography julia number-theory prime-numbers

Last synced: 11 Mar 2026

https://github.com/achronyme/achronyme

A programming language for zero-knowledge circuits with dual execution: full VM + optimized circuit compilation.

compiler cryptography dsl rust zero-knowledge zk

Last synced: 01 Apr 2026

https://github.com/web-of-trust/php-privacy

PHP Privacy - The OpenPGP library in PHP language

cryptography encryption openpgp privacy-guard rfc4880 rfc6637 rfc9580 signing

Last synced: 05 Mar 2026

https://github.com/haikelfazzani/otp

πŸ” Zero dependencies Deno/Bun/Node/Browser module for TOTP and HOTP generator based on RFC 6238 and RFC 4226 πŸ—οΈ

2fa browser bun cryptography deno hotp nodejs one-time-password otp rfc-6238 rfc4226 security totp web-crypto web-cryptography-api

Last synced: 13 May 2025

https://github.com/pxlvre/eip712

πŸ—οΈ EIP-712 is a standard for structuring typed data for Ethereum smart contracts. It is a standard for how to encode typed data according to EIP-191 so that the encoded data may be used to produce a cryptographic hash and a signature.

cryptography eip eip712 ethereum rust web3

Last synced: 19 Jun 2026

https://github.com/bitwise-01/crypto

A wrapper for pycryptodome

cryptography

Last synced: 09 Apr 2025

https://github.com/komodoooo/senkrypt

Senkrypt is a new encryption system made by me and takaso

cryptography cryptography-algorithms decoding decryption encoding encryption

Last synced: 24 Apr 2025

https://github.com/ooesili/shamir

A command line tool for using Shamir's Secret Sharing algorithm.

command-line cryptography shamir-secret-sharing

Last synced: 05 Jul 2025

https://github.com/hn275/file-encryptor

a small cli tool for file encryption, written in Rust.

aes-encryption commandline cryptography gcm key-derivation-function scrypt security

Last synced: 14 Oct 2025

https://github.com/stuyy/bitmedia

Chatterbyte - Social Media Application allowing users to manage tasks, update their statuses, and interact with others.

authorization cookies cryptography databases es6 expressjs javascript nodejs sessions

Last synced: 09 Apr 2026

https://github.com/eneko/axx

Encrypt / decrypt files from the command line

cli command-line-tool cryptography encryption swift swiftpm

Last synced: 15 Jun 2025

https://github.com/x011/pgp-filelock

PGP FileLock is a lightweight tool for encrypting and decrypting files using PGP standards. It provides a simple interface for generating PGP key pairs, encrypting files with public keys, and decrypting them with private keys. Designed for users who need quick and secure file encryption without the complexity of full-featured PGP software.

cipher cryptography decryption encryption pgp pgp-encryption pretty-good-privacy privacy privacy-protection privacy-tools python secure-communication

Last synced: 08 Apr 2025

https://github.com/arctictechnology/libsecp256k1-0

Compiled libsecp256k1 for using ECDSA signatures and secret/public key cryptography in your python projects.

bitcoin bitcoin-core bitcoin-wallet crypto cryptography ecdsa ecdsa-cryptography libsecp256k1 python secp256k1

Last synced: 28 Oct 2025

https://github.com/elliotwutingfeng/aegis-backup-decryptor

CLI tool to decrypt backup files exported from the Aegis Authenticator app. This application is neither affiliated with Beem Development nor Aegis Authenticator.

2fa aes aes-gcm android backup cryptography cybersecurity decryption encrypt encrypted encryption linux macos openssl otp privacy scrypt security totp windows

Last synced: 29 Apr 2025

https://github.com/gpestana/htokens-rs

Suite of verifiable anonymous credentials that can be used by applications and systems to enhance/provide privacy to users without impacting practicality.

anonymous-credentials cryptography privacy verifiable-credentials zero-knowledge

Last synced: 23 Apr 2025

https://github.com/president-xd/cryptix

The Cryptix a powerful python library which provides decryption functions for various ciphers. Below are examples demonstrating how to use the decryption functions for different ciphers included in the package.

cryptography cryptography-algorithms cryptography-library cryptography-project cryptography-tools decoder decoders decryptor decryptor-hash library

Last synced: 07 Mar 2026

https://github.com/philipglazman/bitcoinnotes

My notes on bitcoin in org-mode. Converted to html at bitcoinbook.dev

bitcoin blockchain cryptocurrency cryptography lightning lightning-network wallet

Last synced: 19 Apr 2025

https://github.com/siyovush-hamidov/Hamming-Codes-8-4

πŸ” This project implements the Hamming Code 8-to-4 algorithm for error detection and correction during information transmission, capable of handling one mistake

cpp cryptography

Last synced: 29 Jul 2025

https://github.com/fcasal/CryptoUtils.jl

Cryptography and number-theory primitives in Julia

continued-fractions cryptography julia number-theory prime-numbers

Last synced: 06 Apr 2026

https://github.com/lewoudar/certipie

A helper to generate certificate signing request and self-signed certificates

certificate cryptography csr fastapi

Last synced: 19 Jan 2026

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

Tanker Python SDK - mirror of https://gitlab.com/TankerHQ/sdk-python

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

Last synced: 09 Sep 2025

https://github.com/ysbaddaden/siphash.cr

SipHash family of pseudo random functions implemented in Crystal

cryptography crystal siphash

Last synced: 10 Sep 2025

https://github.com/atareao/cryptfolder-indicator

CryptFolder Indicator manage encrypted folders with CryFS

cryfs crypt cryptography indicator linux linuxmint ubuntu

Last synced: 29 Oct 2025

https://github.com/abdelrahmanbayoumi/rsa-algorithm

Implementation of RSA Algorithm (Encryption - Decryption)

cryptography public-key-encryption python rsa-algorithm rsa-cryptography

Last synced: 04 Apr 2025

https://github.com/ahpaleus/crypto

Cryptography related write-ups, exploits & exercises.

cryptography cryptopals cryptopals-crypto-challenges python writeups

Last synced: 05 Sep 2025

https://github.com/virgilsecurity/virgil-crypto-net

Virgil .NET Crypto Library is a high-level cryptographic library that allows you to perform all necessary operations for secure storing and transferring data and everything required to become HIPAA and GDPR compliant.

crypto cryptography e2ee encryption end-to-end-encryption gdpr hipaa

Last synced: 09 May 2025

https://github.com/libitx/univrse

Universal schema for data serialisation, signing and encryption.

bitcoin bsv cbor cryptography encryption signatures

Last synced: 29 Aug 2025

https://github.com/cbrnrd/krypton

πŸ”’ A CLI tool for easy cryptography

cli command-line-tool cryptography encryption ruby security

Last synced: 22 Apr 2025

https://github.com/armortal/webcrypto-go

An implementation of the W3C Web Cryptography API specification for Go.

crypto cryptography go golang webcrypto webcrypto-api webcryptography-api

Last synced: 23 Jun 2025

https://github.com/checksumdev/uniqueid

Generates a unique hash/identifier for a system given a set of parameters.

authentication crypto cryptography data-structures generator hardware hwid library os rust rust-crate rust-lang rust-library utility

Last synced: 12 Apr 2025

https://github.com/globaleaks/globaleaks-eph-fs

An ephemeral ChaCha20-encrypted filesystem implementation using fusepy and cryptography suitable for privacy-sensitive applications, such as whistleblowing platforms.

chacha20 cryptography fuse-filesystem privacy security whistleblowing-software

Last synced: 14 Dec 2025

https://github.com/chinmay29hub/stegmoji

Stegmoji is a client-side steganography tool. Encode secret messages into emoji or text using invisible Unicode characters (variation selectors, zero-width joiners). Supports three embedding modes (Tail, Interleaved, ZWJ-aware), optional compression, AES-GCM encryption, and full Unicode analysis/visualization

client-side compression cryptography data-visualization javascript nextjs open-source privacy react security steganography unicode web-app web-crypto

Last synced: 17 Jan 2026

https://github.com/demining/lattice-attack-249bits

LATTICE ATTACK 249bits we solve the problem of hidden numbers using 79 signatures ECDSA

attack attacker bitcoin cryptocurrency cryptography ecdsa ecdsa-cryptography ecdsa-signature hack hacking lattice lattice-attack

Last synced: 10 Sep 2025

https://github.com/cristinemirror/zyra-crypto-wallet-mnemonic-seed-phrase-balance-checker

This repository features Zyra, a crypto wallet tool that includes functionality for checking balances using mnemonic seed phrases. It allows you to securely manage and verify cryptocurrency balances associated with various wallets.

balance balance-checker bip39 bitecoin blockchain cold-wallet crypto crypto-wallet cryptography ethereum hardware-wallet keypair mnemonic mnemonic-phrase seed seed-phrase wallet wallet-checker

Last synced: 24 Oct 2025

https://github.com/coyim/constbn

Constant time BigNum operations to make it possible for OTR3 to have constant time ModExp

bearssl bignums cryptography

Last synced: 11 Jul 2025

https://github.com/demining/milk-sad-vulnerability-in-the-libbitcoin-explorer-3.x

Milk Sad vulnerability in the Libbitcoin Explorer 3.x library, how the theft of $900,000 from Bitcoin Wallet (BTC) users was carried out

bitcoin bitcoin-wallet blockchain-explorer cryptocurrency cryptography hacker hacking libbitcoin mersenne-twister prng vulnerability

Last synced: 11 Jul 2025

https://github.com/aaron-akhtar/jbot-archived

Java Botnet - Unfinished - Probably Discontinued

botnet cryptography java java-botnet jbot malware

Last synced: 24 Oct 2025

https://github.com/bheesham/applied-cryptography-accompanying-source-code

The source code which accompanies Bruce Schneier's Applied Cryptography.

assembly c c-plus-plus cryptography java pascal

Last synced: 01 Aug 2025

https://github.com/sakryukov/storage-free-pass

Storage-Free Pass is a generator of highly secure passwords based on cryptographic hash and master password, which should be memorized; no password storage is involved

authentication criptographic-hash cryptography css html javascript security

Last synced: 07 May 2025

https://github.com/analogfeelings/blitzhash

SHA hashing library for Blitz3D, using Crypto++ as a backend.

blitz blitz3d blitzbasic cpp cryptography cryptopp visual-studio vs2022

Last synced: 18 Aug 2025

https://github.com/osmanuygar/kcpwd

A tool for secrets management, encryption as a service, and cross-platform keychain password manager CLI, Library & Web UI

cryptography keychain password-generator password-manager python secret-management vault

Last synced: 06 Mar 2026

https://github.com/phantom0004/krypt0s-ransomware_poc

KRYPTOS is a sophisticated Python-based ransomware proof of concept (POC) designed for educational purposes. It encrypts files on Windows machines, focusing on persistence and stealth. Additionally, it includes a fake ransomware screen resembling WannaCry, with all information being fictional.

aes cryptography educational encyrption learning malware poc prevention proof-of-concept python ransomware ransomware-builder simulation stealth teaching testing virtual windows windows-10 windows-11

Last synced: 27 Oct 2025

https://github.com/umuttopalak/pass-cli

A secure command-line password manager with AES-256 encryption and sudo authentication

aes-256 cli command-line-tool cryptography keyring password-generator password-manager password-security python security

Last synced: 28 Jul 2025

https://github.com/kassane/wolfssl

WolfSSL library - Using Zig Build

c-library cryptography fips ssl tls wolfssl wolfssl-library zig zig-package

Last synced: 06 May 2025

https://github.com/noloader/power8-crypto

The unoffical guide to POWER8 in-core crypto

aes-power8 book c cplusplus cryptography docbook powerpc sha-power8

Last synced: 27 Jul 2025

https://github.com/cyphrme/cozejs

Coze Javascript - cryptographic JSON messaging specification

auth authentication coze cryptography cyphrme json jwt login

Last synced: 02 Feb 2026

https://github.com/anishvedant/end-to-end-encryption

End-to-End Encryption with Python Socket Communication This Python project demonstrates end-to-end encryption (E2EE) using the x25519 key exchange protocol and AES encryption for secure communication between a client (Alice) and a server (Bob) over a socket connection.

advance-encryption-standard aes-encryption aes256-cbc alice bob cbc-mode client-server communication cryptography end-to-end-encryption hmac-authentication hmac-sha256 key key-generation pyhton3 server socketserver symmetric-key-cryptography

Last synced: 13 Apr 2025

https://github.com/simplito/privmx-crypto-js

Javascript crypto library ...

aes cryptography ecc nodejs rsa srp web

Last synced: 11 Apr 2025

https://github.com/heartsucker/iron-csrf

CSRF protection for the Rust web framework Iron

cryptography csrf csrf-protection http iron rust

Last synced: 13 May 2025

https://github.com/rofl0r/kripto

Simple and flexible "object-oriented" cryptographic library written in ISO C99.

c99 cryptography public-domain

Last synced: 10 Apr 2025

https://github.com/terl/lazysodium-examples

Examples, samples and extra documentation on how to use Lazysodium.

cryptography docs samples

Last synced: 30 Apr 2025

https://github.com/demining/gauss-jacobi-method-and-machine-learning-process-bitcoinchatgpt

Decrypting Passwords to Access Lost Bitcoin Wallets Using Gauss-Jacobi Method and Machine Learning Process BitcoinChatGPT

bitcoin bitcoin-wallet chatgpt cryptocurrency cryptography decryption openai privatekey

Last synced: 01 Jul 2025

https://github.com/fxfactorial/accumulator

RSA accumulator in go lang

accumulator crypto cryptography rsa

Last synced: 10 Apr 2025

https://github.com/rikulo/xml-crypto

Xml digital signature library for Dart

cryptography dart xml xml-digital-signature xmldsig

Last synced: 10 Apr 2025

https://github.com/cipher-fox/nestjs-cryptography

Secure NestJS cryptography module πŸ”

cryptography javascript nest nestjs node security typescript

Last synced: 25 Apr 2026

https://github.com/dotcoocoo/hermitstash

Post-quantum encrypted, self-hosted file sharing. ML-KEM-1024 + P-384 hybrid crypto, zero plaintext on disk, one-command deploy. πŸ¦€

argon2 cryptography docker encryption end-to-end-encryption fido2 file-sharing file-upload ml-kem nodejs passkeys post-quantum privacy security self-hosted sqlite webauthn xchacha20 zero-dependency zero-knowledge

Last synced: 26 Jun 2026

https://github.com/renaud1239/kreyvium

Reference code of the KREYVIUM algorithm, a FHE-friendly 128-bit key stream cipher.

cryptography stream-cipher

Last synced: 12 Sep 2025

https://github.com/jiegec/crypto

Implementations of several cryptographic algorithms.

crypto cryptography

Last synced: 21 Apr 2025

https://gitlab.com/coroner/cryptoparser

Cryptographic protocol and security-related protocol piece parser.

DNSSEC HASSH JA3 RDP cotp cryptography cryptolyzer dmarc gost http-sts ldap mta-sts pentest postgresql python spf ssh ssl tls tpkt

Last synced: 08 May 2025

https://github.com/chandru415/password-hash-verify-csharp

ASP.Net Core C#. password hashing with salt & verification (encrypt & decrypt style). Password-Based Key Derivation Function 2

asp-net-core cryptography password pbkdf2withhmacsha512

Last synced: 26 Aug 2025

https://github.com/zsystm/gadget

A simple yet powerful CLI tool for various cryptographic and address-related tasks, especially handy in Tendermint(CometBFT) & Ethereum ecosystems.

cometbft cosmos-sdk cryptography ed25519 ethereum secp256k1

Last synced: 23 Jan 2026

https://github.com/demining/vector76-attack

Vector76 Attack: Researching and Preventing Threats to the Bitcoin Network Detailed Cryptanalysis Based on Real Data

attack bitcoin bitcoin-hacking bitcoin-transaction blockchain cryptanalysis cryptocurrency cryptography double-spending vector76 vector76-attack vulnerability

Last synced: 03 May 2025

https://github.com/lamden/speedy-zero-knowledge

Prove someone has a piece of data with certainty using a fast challenge-response algorithm that does not disclose any piece of said data.

cryptocurrency cryptography knowledge proof zero zero-knowledge

Last synced: 10 Apr 2025

https://github.com/zabojeb/phpgp

phPGP - tool to store your PGP keys on the physical storage (USB, flash drive etc.)

cryptography cybersecurity encoding gnupg gpg pgp pypi python security usb

Last synced: 29 Jan 2026

https://github.com/demining/qianshi-quantum-computer

Cryptocurrency of Bitcoin against QIANSHI quantum computer from Chinese search engine giant Baidu Inc.

attack bitcoin bitcoin-transaction bitcoin-wallet blockchain cryptocurrencies cryptography ecdsa ecdsa-cryptography privatekey quantum-computing vulnerability

Last synced: 06 Oct 2025

https://github.com/djasnowski/blockchain.js

Native blockchain implementation in JavaScript.

blockchain blockchain-demos blockchain-technology cryptocurrency cryptography

Last synced: 14 Oct 2025

https://github.com/patrickfav/bkdf

BCrypt based key derivation function to improve BCrypt as a cryptographic primitive for password hashing and key derivation

bcrypt cryptography hkdf java kdf password security

Last synced: 09 Apr 2025

https://github.com/athanorlabs/go-dleq

go implementation of cross-group discrete logarithm equality proofs

cryptography dleq zero-knowledge

Last synced: 14 Apr 2025

https://github.com/marcominerva/dataprotectionsample

This example shows how to use the DataProtection APIs with ASP.NET Core

aspnetcore cryptography csharp data-protection dotnet minimal-api security

Last synced: 09 Apr 2025