Discover keygen-sh/example-java-cryptographic-license-keys Open Source

Get the unique machine ID of any host (without admin privileges).

py-machineid

An example Node.js app that integrates Keygen with Paddle for accepting payments.

example-paddle-integration

An example Electron app that uses Keygen for licensing and auto-updates.

example-electron-app

An example implementation of offline activation for air-gapped machines using QR codes, signed and encrypted license files, and a mobile device.

air-gapped-activation-example

TypeScript

example-wordpress-plugin

An example WordPress plugin that uses Keygen for site-locked licensing.

PHP

example-stripe-integration

An example Node.js app that integrates Keygen with Stripe for accepting payments.

An example Node server that performs license creation, activation and validation using Keygen.

example-node-activation-server

An example implementation of a node-locked license activation flow using Keygen and Python

example-python-machine-activation

A simplistic Electron app example that uses Keygen for license key validation.

basic-example-electron-app

HTML

keygen-cli

Official command line tool for publishing releases to Keygen's distribution API.

example-electron-license-gate

An example of adding a license gate to an Electron app, requiring a valid license to "unlock" the main application window.

An example PHP server that performs license creation, activation and validation using Keygen.

example-php-activation-server

PHP

example-go-program

A self-updating Go program that uses Keygen for licensing and auto-updates.

keygen-zapier

An official Zapier integration for Keygen.

TypeScript

keygen-relay

An offline-first on-premise licensing server backed by Keygen.

example-python-cryptographic-verification

Example of verifying a license key's authenticity using Ed25519 and RSA-SHA256 with various padding schemes

Join the Keygen community. Ask questions, talk about software development, discuss licensing, and show off your work!

community

example-gumroad-integration

An example Node.js app that integrates Keygen with Gumroad for accepting payments.

An example of making a simple license validation request from a Rust command line program

example-rust-license-validation

Rust

example-python-offline-validation-caching

An example of utilizing license validation caching and cryptographic verification for offline use

Example of node-locked machine activation with a heartbeat monitor.

example-python-machine-heartbeats

Example of verifying a license key's authenticity using RSA-SHA256 with PKCS1 v1.5 padding

example-cpp-cryptographic-verification

Example of verifying cryptographically signed and encrypted license files using Rust, Ed25519 and AES-256-GCM

example-rust-cryptographic-license-files

Rust

example-cpp-gui-license-validation

An example of making a simple license validation request from a Qt/C++ GUI program

Example of verifying cryptographically signed and encrypted license files using C++, OpenSSL, Ed25519 and AES-256-GCM.

example-cpp-cryptographic-license-files

example-python-cryptographic-machine-files

Example of verifying cryptographically signed and encrypted machine files using Python, Ed25519 and AES-256-GCM.

Example of verifying cryptographically signed and encrypted license files using C#, NSec, Bouncy Castle, Ed25519 and AES-256-GCM.

example-csharp-cryptographic-license-files

example-node-machine-activation

An example implementation of a typical machine activation flow using Keygen

An example Node.js app that integrates Keygen with FastSpring for accepting payments.

example-fastspring-integration

Example of verifying cryptographically signed license keys using C#, Bouncy Castle and RSA PSS-SHA256

example-csharp-cryptographic-verification

example-csharp-license-activation

An example implementation of a node-locked license activation flow using Keygen and C# .NET

example-react-licensing-portal

An example customer-facing licensing portal built using Keygen's API and React

An example of making a simple license validation request from a C++ command line program

example-cpp-license-validation

An example implementation of embedding data inside of cryptographically signed license keys using RSA cryptography, for use in offline licensing models.

example-embedded-license-key-data

An example of publishing a private Node package to a private npm registry hosted by Keygen

example-private-npm-package

Example of verifying cryptographically signed and encrypted license files using Dart, Ed25519 and AES-256-GCM

example-dart-cryptographic-license-files

Dart

example-cpp-user-authentication

Example of authenticating as a user and interacting with Keygen's API

An example implementation of validating a license key from within a React component.

example-react-license-validation

An example Node.js app that integrates Keygen with SendOwl for accepting payments.

example-sendowl-integration

An example implementation of verifying response signatures using cryptography to prevent tampering with cache payloads, replay attacks and MITM attacks.

example-node-response-signature-verification

An example of making a simple license validation request from a C# .NET console application

example-csharp-license-validation

example-csharp-user-authentication

An example implementation of user authentication using Keygen and C# .NET

example-cryptographic-verification

An example implementation of cryptographically verifying license key authenticity using ECC and RSA cryptography, for use in offline licensing models.

Example of verifying response signatures using portable Ed25519

example-cpp-response-signature-verification

example-csharp-validation-caching

An example of license validation caching for a C# .NET 5 console application

example-multi-tenant-licensing-server

An example of how to implement a multi-tenant node-locked licensing server.

An example of implementing a hybrid online/offline licensing system using Keygen

example-csharp-hybrid-online-offline-licensing

example-validation-caching

An example command line script that caches validation responses to the filesystem for offline licensing.

Example of secure license key activation in a Bash script.

example-bash-license-activation

Shell

example-go-license-validation

An example of making a simple license validation request from a Go command line program

example-duplicate-machine-suspension-job

An example job which suspends licenses based on duplicate machine instances

Example of using Python to create a new release and upload a release artifact.

example-python-release-upload

Example of verifying signed machine activation proofs using RSA PKCS1 v1.5 padding with a SHA256 digest.

example-python-activation-proof-verification

Example of verifying a license key's authenticity using RSA-SHA256 with PKCS1 PSS padding with Bash.

example-bash-cryptographic-verification

Shell

example-java-cryptographic-license-files

Example of verifying cryptographically signed and encrypted license files using Java, Bouncy Castle, Ed25519 and AES-256-GCM

Java

fcl.dev

The website for the Fair Core License. Fair Core is to Fair Source what Open Core is to Open Source.

HTML

example-webhook-handler

An example Node.js app that handles webhook events from Keygen

An example of fulfilling password reset requests with your own domain and email provider

example-password-reset-fulfillment

An example script that imports a collection of users into Keygen from a CSV dataset

example-csv-importer

Example of verifying cryptographically signed and encrypted license files using Node, Ed25519 and AES-256-GCM.

example-node-cryptographic-license-files

An example Node.js app that integrates Keygen with MoonClerk for accepting payments.

example-moonclerk-integration

An example of deactivating a license's machines in bulk using Keygen's API

example-python-bulk-machine-deactivation

An example Node.js app that proxies release downloads from Keygen Dist.

example-dist-proxy