It's actually more like walking into a gun shop, telling the owner you plan on committing murder with the gun they sell you, and he continues to sell it to you.

The key difference being that the provider knew that your intention was illegal, and they continued to allow it to happen.

The ethics of this are debatable of course, but in general, it seems that facilitating a crime is generally seen by most governments as 'aiding and abbetting' and is considered a crime itself.