922 Open source projects that are alternatives of or similar to Python Opentimestamps

LibTomCrypt is a fairly comprehensive, modular and portable cryptographic toolkit that provides developers with a vast array of well known published block ciphers, one-way hash functions, chaining modes, pseudo-random number generators, public key cryptography and a plethora of other routines.

Cryptographic library for Haskell

📚 VoidHack CTF write-ups

⛓️ Reference Waves Blockchain Node (client) implementation on Scala

💹 Hackable charting lib for traders. You can draw literally ANYTHING on top of candlestick charts.

The Blockstack Browser

📊 Lightweight dashboard and control system for bitcoin nodes

DragonEx OpenAPI

Go implementation of OPAQUE (hidden password user registration and auth)

An app to keep a watch on big volume trades of cryptocurrecies on different exchanges by sending alerts via a Telegram Bot.

Cross-platform cryptographic functions in swift

Fault attack agaisnt EdDSA demonstrated on an Arduino Nano board, allowing for partial key recovery and fake signatures.

Secure chat software for your computer.

IBM Fully Homomorphic Encryption Toolkit For Linux. This toolkit is a Linux based Docker container that demonstrates computing on encrypted data without decrypting it! The toolkit ships with two demos including a fully encrypted Machine Learning inference with a Neural Network and a Privacy-Preserving key-value search.

Blogs about Cryptography/Security to follow

A new decentralised, open source, community driven digital currency, focusing on e-commerce utility

Scripts that illustrate basic cryptography concepts based on Coursera Standford Cryptography I course and more.

A dead simple tool to sign files and verify digital signatures.

Open-source implementation of a substantial portion of the API of Apple CryptoKit suitable for use on Linux platforms.

A small set of utilities for use with BIP32 HD key nodes

BitSend Master (Live Version)

Universal cloud storage client

A tool to analyze multi-byte xor cipher

This project is a secure Bitcoin brainwallet app written in Python.

Free Bitcoin/Altcoins Payment Gateway Addon for WooCommerce 2.1+ (or higher). Accept USD, Bitcoin, Litecoin, Dogecoin, Speedcoin, Darkcoin, Vertcoin, Reddcoin, Feathercoin, Vericoin, Potcoin payments in WooCommerce. Direct Integration on your website. No Chargebacks, Global, Secure. All in automatic mode.

A CONIKS implementation in Java

Node.js bindings to rust_sodium.

Bitcoin Wallet Address Generator

A curated list of cryptography papers, articles, tutorials and howtos.

A high-performance tool for blockchain science and exploration

Public key cryptography library for Ruby providing the X25519 Diffie-Hellman function

Bitcoin Wallet Import Format JS encoding/decoding module

REST APIs for c-lightning written in node.js

The most complete cryptocurrency image library to be used in your project.

CogniCrypt_SAST: CrySL-to-Static Analysis Compiler

Gemini, GDAX, Bitfinex, Poloniex, Binance, Kraken, Cryptopia, Koinex, BitGrail and CoinMarketCap cryptocurrency exchange API clients in Swift / iOS SDK. Check prices and account balances using Sample iOS app.

Java implementation of K-Sortable Globally Unique IDs

Secuela Sans & Condensed - Variable Font OFL

arcbit - Android bitcoin wallet http://arcbit.io

CogniCrypt is an Eclipse plugin that supports Java developers in using Java Cryptographic APIs.

Online client-side manager for secure storage and secrets sharing.

Cryptocurrency donation daemon

Elastic sidechains

⚡️ Lightning Publisher for WordPress

A Node.js library for anchoring data onto the Bitcoin blockchain and confirming anchored data on Bitcoin and Ethereum.

Nim wrapper for the libsodium library

Filecoin Signing Library

UFONet - Denial of Service Toolkit

An implementation of TLS and related specifications in Common Lisp

区块链自媒体、专注区块链技术学习和实践、IPFS/Filecoin、Bitcoin、Ethereum、EOS、Cosmos、区块链、白皮书、Coinmarketcap、Coindesk、Safe Network、Telegram、Docker、社会治理、经济激励

Public Blockchain as a Decentralized Finance Infrastructure Service Platform

Bitcoin.org Website

GoUrl Official Bitcoin Payment Gateway for Wordpress 3.5+ (or higher). Sell Products, Files, Digital Downloads, Membership on your website. Accept Bitcoin, Litecoin, Dogecoin, Darkcoin, Reddcoin, etc Payments Online. Use Pay-Per-Download, Pay-Per-Product, Pay-Per-Membership, Pay-Per-Page/Video-Access on your website. It is Easy!

An independent implementation of the Powers of Tau MPC ceremony.

Datasafe - flexible and secure data storage and document sharing using cryptographic message syntax for data encryption

MSc Module

Bitcoin made easy.

Introductory book about Bitcoin's technology fundamentals and development for portuguese-speaking programmers.

InterPlanetary File System for Business (IPFSfB) is an enterprise blockchain storage network based on InterPlanetary File System.

★MyDiceBot★ - Ultimate Bitcoin Dice Bot. Bet More, Earn More!