Re: [cinjug-users] Product Keys

[Michael Schneider <michaelschneider@xxxxxxxx>]

Simple overview of  Public/Private keys


http://en.wikipedia.org/wiki/Public-key_cryptography

Scott Hofmann wrote:

Jim could you elaborate a little more for me what a Public/Private license
key scheme might entail?

As for the application in development it is a charting tool for NFP (Natural
Family Planning). To get more information on the basics of NFP check out
http://ccli.org/nfp/basics/advantages.php

In brief though it is the process of determining the time of ovulation in a
woman's menstrual cycle by charting information about her temperature and
mucus signs and crosschecking these based on a set of rules. Most people do
this on a paper chart. This software would allow a couple to chart the same
info electronically and have the system provide helpful interpretation of
the information being input to determine the various phases in a woman's
cycle (normally to help achieve pregnancy).

If your really interested in finding out more I suggest taking a class from
one of the many CCL volunteers teaching the method
http://ccli.org/learn/tcsearch.php. If nothing else it is very informative
and tends to help communication between a husband and wife.

OK I'm done with my soapbox now :) Hope that helps.

- Scott

  

-----Original Message-----
From: Jim Tyrrell [mailto:jimtyrrell@xxxxxxxxx] 
Sent: Friday, August 11, 2006 9:07 AM
To: Scott Hofmann; users@xxxxxxxxxx
Subject: RE: [cinjug-users] Product Keys

Scoot,

Although I have read James C. link and it does kind of sicken 
me.  I think that a Public/Private license key scheme is the 
only way to go.  I have never implemented this, but have 
thought through this and it seems to me to be the only real 
way to at least slow down the caual programmer and user.  
Note I said slow down and not stop.

I would also just love to hear what your application does.

Thank You
Jim Tyrrell


--- James Carman <james@xxxxxxxxxxxxxxxxxxxx> wrote:

    

This is somewhat dated, but I found it a very interesting 
      

read when I 
    

was considering how to write a licensing service for my Java code.  
It's somewhat depressing:

 

http://www.cigital.com/hostile-applets/maginot.html

 

 

 

  _____

From: Scott Hofmann [mailto:shofmann@xxxxxxxx]
Sent: Friday, August 11, 2006 7:06 AM
To: users@xxxxxxxxxx
Subject: [cinjug-users] Product Keys

 

Hello everyone,

I'm involved in a software product being developed in Java and 
wondered if anyone here has had any experience with product 
      

keys and 
    

registrations?  I'm hearing from the developer that to do 
registration:

 

"From my research online, it looks like the only truly 
      

secure way is 
    

to have a license server.  The software would then connect to the 
license server to ensure that it is legitimate.  However, 
      

this seems 
    

like an expensive solution as it requires *much* more 
      

development work 
    

in addition to having another server to maintain."

 

Sooo... I'm trying to identify ways others are doing
their product keys or
have heard of doing them. We really do not need a
truly secure key. The
product will sell for under $50. What we need we
think is just a simple
solution that help to: 

 

- Keep people honest and not feeling to free about
passing along copies to
other.

- Being able to provide support to those who truly
purchased the product.

- Most likely we would not trouble ourselves with
those people who are
dishonest and feel the need to find loop hole in
software product keys in
order to use it anyway.

 

Any advice or thoughts on this topic would be
helpful.

 

- Scott Hofmann

 


      

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