Thanks for checking. > However contrary to my original statement it turned out secret in use was actually only 30 characters long. I'm guessing it's 32 charac

Thanks for checking. > However contrary to my original statement it turned out secret in use was actually only 30 characters long. I'm guessing it's 32 characters long? (256 bits) That matches to the spec and is a good key - as referenced in other threads anything longer is mostly a waste as the key input gets hashed down to a fixed size.