Tool vendor specific rights are placed into vendor specific toolblock
sections. There has to be at least one tool block for each encrypted block. This block
also contains the encryption key definition for the tool vendor.
The beginning and end of this block are defined by the following pragmas:
‘protect begin_toolblock
...
‘protect end_toolblock=""Tip: Tool blocks are vendor-specific; consequently, each
vendor has a separate
toolblock defining their encryption key and
access rights.