[angus-prune]

You may have come across this concept already, but this is where clean rooms come in.

One person views the "contaminated" decompiled code and writes a specification. A separate person writes the code based solely on the specification. This is an accepted method of demonstrating that there is no infringement.

[stavros]

Yep, I knew of clean-room reimplementations, I was just wondering whether decompiling is somehow in itself illegal.