I am not a lawyer or legal expert, and to my knowledge rot13 hasn't been tested in the courts. DeCSS has though, and the code is 434 bytes, or you can brute for

I am not a lawyer or legal expert, and to my knowledge rot13 hasn't been tested in the courts. DeCSS has though, and the code is 434 bytes, or you can brute force a key in seconds on a modern system (per Wikipedia). That was litigated, interestingly, and some people may remember 2600 got sued over it.