parke

I can reproduce this bug fairly consistently (half the time or more) with Micro version 1.3.3. ``` Micro encountered an error: runtime error: index out of range runtime.errorString runtime error:...

It is your library, so as long as it is intentional, I understand. I value readable code before all else, and I dislike assigning a value that will never (in...

A quicker (interim?) fix would be to document which ciphers require block length inputs.