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Setting an authorization serial number to unlock features in applications

Would anyone have a routine kicking around that would take a users email
address and convert it into a string of numbers to use as an unlock code?

I am writing an application and would like it to be demo'able but not fully
functional until the unlock code is entered.

thanks in advance!

mitch
Nov 21 '05 #1
2 1349
"Mitch" <no*****@addres s.com> wrote in
news:OA******** ******@tk2msftn gp13.phx.gbl:
Would anyone have a routine kicking around that would take a users
email address and convert it into a string of numbers to use as an
unlock code?
You can probaby use the built in classes to generate an ecrpyted string?

I am writing an application and would like it to be demo'able but not
fully functional until the unlock code is entered.


Just remember to obfuscate your code - it's very easy to decompile .NET
code.

--
Lucas Tam (RE********@rog ers.com)
Please delete "REMOVE" from the e-mail address when replying.
http://members.ebay.com/aboutme/coolspot18/
Nov 21 '05 #2
some results of googling on how to encrypt a string in vb.net:
Simple Encryption:
http://www.developer.com/net/vb/article.php/3292781
http://www.dotnetspider.com/Technology/KBPages/611.aspx
Stronger Encryption (RSA):
http://www.devx.com/security/Article/17455/0/page/3
Others:
http://www.devarticles.com/c/a/VB.Ne...al-Basic-.NET/
http://www.obviex.com/samples/Encryption.aspx

you can encrypt the email address and use the generated key as an unlock
code.

hope that helps..
Imran.
"Mitch" <no*****@addres s.com> wrote in message
news:OA******** ******@tk2msftn gp13.phx.gbl...
Would anyone have a routine kicking around that would take a users email
address and convert it into a string of numbers to use as an unlock code?

I am writing an application and would like it to be demo'able but not
fully
functional until the unlock code is entered.

thanks in advance!

mitch

Nov 21 '05 #3

This thread has been closed and replies have been disabled. Please start a new discussion.

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