ezekg / license_key_validation.py

Created February 7, 2022 15:32

An example of validing a license key using Python 3's standard library

	from urllib.request import Request, urlopen
	import json
	import sys

	req = Request(
	'https://api.keygen.sh/v1/accounts/demo/licenses/actions/validate-key',
	method='POST',
	data=json.dumps({
	'meta': {
	'key': 'C1B6DE-39A6E3-DE1529-8559A0-4AF593-V3',

ezekg / _README.md

Last active January 27, 2022 16:40

How to verify a signed license key using C#, .NET 6, RSA PKCS1 v1.5 and System.Security.Cryptography. See: https://keygen.sh

Setup dependencies

dotnet --version
# => 6.0.101

Run the example

ezekg / _README.md

Last active August 19, 2023 10:30

How to verify a signed license key using C#, Ed25519 and the NSEC crypto package. See: https://keygen.sh

dotnet --version
# => 6.0.101

dotnet add package NSec.Cryptography

ezekg / ANSI.md

Created August 12, 2021 20:47 — forked from fnky/ANSI.md

ANSI Escape Codes

Standard escape codes are prefixed with Escape:

ezekg / updateProxy.ts

Created August 6, 2021 13:57 — forked from sploders101/updateProxy.ts

Example update proxy for electron

	import http from "http";
	import https from "https";
	import {
	AddressInfo,
	} from "net";
	import { URL } from "url";

	const updateServer = "https://updates.yourserver.com/path/to/update/dir/without/trailing/slash";
	const updateAuth = `Basic ${Buffer.from("username:password").toString("base64")}`

ezekg / keygen-cryptographic-key-verification.cs

Created June 30, 2021 11:59

Using BouncyCastle to verify license keys cryptographically signed using RSA PKCS1 v1.5.

	using Org.BouncyCastle.Crypto.Signers;
	using Org.BouncyCastle.Crypto.Engines;
	using Org.BouncyCastle.Crypto.Digests;
	using Org.BouncyCastle.Security;
	using System.Text;
	using System;

	class Program
	{
	const string KEYGEN_LICENSE_KEY = "key/eyJhY2NvdW50Ijp7ImlkIjoiMWZkZGNlYzgtOGRkMy00ZDhkLTliMTYtMjE1Y2FjMGY5YjUyIn0sInByb2R1Y3QiOnsiaWQiOiI3MDcxZmVmZi1iNWYzLTQzNGEtODNjMS0zYWIzZjM1OTIzMjUifSwicG9saWN5Ijp7ImlkIjoiOWE0MDI1MTItOGUzZC00YWMxLTkyYjktZTIxMzE3ZDY3MjNjIiwiZHVyYXRpb24iOm51bGx9LCJ1c2VyIjpudWxsLCJsaWNlbnNlIjp7ImlkIjoiYThjODUxMzUtYWM3MS00Y2ZiLWFmZGQtMzEyZTNmNjg5MDM3IiwiY3JlYXRlZCI6IjIwMjEtMDYtMzBUMTE6NTQ6NDAuMTU5WiIsImV4cGlyeSI6bnVsbH19.egtTIhlFr9PfC8mr47wjzac7XbliK9218JM0APCQSonwfUxYWmN_aVILCbzlmxrrp2LtNmuclHEE_Hz6dihrxua1gYl5WtkhVVpsiE58m1ypsbczDnA1QIj-3uhicQt05mnv2MO7zRL335vcCrse_OFwy8QwZtSswsBYnNa_VE0RVjtrwAf4mrWjB5ASqFc9d-44u2c7R0VVB8ODF0A7telSa9ZbHOkl8gborW45SQT0GLqCK3a1NvHmX_nJ9PR3N8RfHsa3cblmOlsOA-7VCyoJulNdbpwo1xItO28oCOvoqV2P9XDhqfKBEMgyUhgdm_yml3ezJPjfL8l6S-shxw==";

ezekg / keygen-cryptographic-proof-verification.py

Created June 14, 2021 14:02

	from cryptography.hazmat.primitives import serialization, hashes
	from cryptography.hazmat.primitives.asymmetric import padding
	from cryptography.hazmat.backends import default_backend
	from cryptography.exceptions import InvalidSignature
	import base64
	import sys
	import os

	# Cryptographically verify the activation proof using our public key
	def verify_activation_proof(activation_proof):

ezekg / keygen-cryptographic-proof-verification.cs

Last active June 14, 2021 14:18

	using Org.BouncyCastle.Crypto.Signers;
	using Org.BouncyCastle.Crypto.Engines;
	using Org.BouncyCastle.Crypto.Digests;
	using Org.BouncyCastle.Security;
	using System.Text;
	using System;

	class Program
	{
	const string KEYGEN_ACTIVATION_PROOF = "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

ezekg / ed25519.js

Last active June 29, 2021 19:27

Encoding a hexidecimal Ed25519 verify key to DER format using Node.

	const crypto = require('crypto')

	{
	const verifyKey = 'e8601e48b69383ba520245fd07971e983d06d22c4257cfd82304601479cee788'
	const licenseKey = 'key/Njg1ZjkwMDY5OGZkOWNiZTYwODRlNmRhZDdmMGU3NjI=.V0MIuqrUfTnPrCAPqi8YfnpGHNluoGs1QG0XqZ67D8q9dQvtuEaKVz_7w5cZkcYvOkNbvE28w8P4xVemXbBqAA=='

	// Encode hexidecimal key into DER format (Node doesn't accept hex format)
	const oid = Buffer.from([0x06, 0x03, 0x2B, 0x65, 0x70])
	const key = Buffer.from(verifyKey, 'hex')
	const elements = Buffer.concat([

ezekg / gist:f70d5035942b476b6d8fe17e95e6ec40

Created April 23, 2021 21:25

	Serializer outputs ----------------------------------
	alba {"id":1,"body":"post","commenter_names":["John","Jane"],"comments":[{"id":1,"body":"Comment1"},{"id":2,"body":"Comment2"}]}
	alba_inline {"id":1,"body":"post","commenter_names":["John","Jane"],"comments":[{"id":1,"body":"Comment1"},{"id":2,"body":"Comment2"}]}
	ams {"id":1,"body":"post","commenter_names":["John","Jane"],"comments":[{"id":1,"body":"Comment1"},{"id":2,"body":"Comment2"}]}
	blueprinter {"body":"post","commenter_names":["John","Jane"],"comments":[{"body":"Comment1","id":1},{"body":"Comment2","id":2}],"id":1}
	jbuilder {"id":1,"body":"post","commenter_names":["John","Jane"],"comments":[{"id":1,"body":"Comment1"},{"id":2,"body":"Comment2"}]}
	jsonapi {"data":{"id":"1","type":"json_api_standard_post","attributes":{"id":1,"body":"post","commenter_names":["John","Jane"],"comments":[{"id":1,"body":"Comment1"},{"id":2,"body"