Library for generating various license keys and other similar license schemes.

• Microsoft Chicago/IE4 beta site ID/password
• Microsoft mod7
• StarCraft

If you want to contribute, keep the following in mind:

• Do not use non-public source code or documentation leaks as references. If the leaked source code or documentation is widely distributed, it's fine to use it.
• Make your code fast and understandable.
• Write tests for all generation and validation functionality.