Build your own License.framework...Software licensing framework • customizable • high...

A true story

Build your own License.framework ?!

Patrick Stein aka Jollywww.jinx.de www.screenrecycler.com

Macoun’08

http://www.jinx.de

http://www.jinx.de

http://www.screenrecycler.com


Software licensing framework

• Introduction

• Licensing options

• Implementation

• JNXLicense framework

• birds of a feather talk

Overview


ScreenRecycler finished - now what?


• no license (generic payment provider)

• mac payment provider

• open source licensing framework

• own license framework

Licensing options


• easy and fast to implement

• easy for the user as it’s easy to use

• every licensing is crackable

• payment provider needed

• no protection

No license

Licensing options


• little implementation effort

• professional support

• working

• limited licensing scheme

• limited payment types

• no easy change for the same major version

Mac license provider

Licensing options


Mac license provider

Licensing options

Internet

Credit CardCompany

10

My Bank Account

Payment Provider

DB


• no costs

• customizable

• working


• limited protectionserial number breach / library problem

open source license framework

Licensing options


• customizable

• high development effort

• stability and security not proven


• we can change the provider

• additional support needed( customer / server )

own license framework

Licensing options

MyServer

DB


own license framework

Licensing options

Internet

Credit CardCompany

10

My Bank Account

Payment Provider

DB


• Mac payment provider

• Esellerate as they provide in application as well as website buy methods

Decided ?


• Cocoa framework is a c-wrapper

• Activation and deactivation

• no intel support at that time

Implementation problems

Implementation


• I decided not to take another chance

No Intel support now what ?

Implementation


• easy to use as developer

• easy to use for users

• no serialnumbers on warez sites

• other features and drawbacks

• future development

Features - anybody ?

JNXLicense.framework


• no nib file editing

• add three lines of code

• work with multiple payment providers

easy to use as developer



• payment with in-app-store

• payment via a trusted website

• activation / deactivation via Internet (http or mail)

Easy to use for users



• rsa signed license

• hostbased ( hostid , inode, … )

• application signing

• revocation - not needed

no serial numbers on warez



• high development effort


• stability and security not proven

• additional support needed( customer / server )

drawbacks



• additional data per license

• multiple payment providers

• timed and quantity licenses

• license handling on the server( quantity, time, security options )

other features



• site / floating licenses

• multiple payment providers

• third party developer support

future development


birds of a feather


Macoun’08

http://www.jinx.de

http://www.jinx.de




A true story

Ein eigenes Lizenzframework ?!

Macoun’08

http://www.jinx.de

http://www.jinx.de



Build your own License.framework...Software licensing framework • customizable • high...

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