=item B<-engine> id
-Specifying an engine (by it's unique B<id> string) will cause B<ts>
+Specifying an engine (by its unique B<id> string) will cause B<ts>
to attempt to obtain a functional reference to the specified engine,
thus initialising it if needed. The engine will then be set as the default
for all available algorithms. Default is builtin. (Optional)
The name of the file containing the hexadecimal serial number of the
last time stamp response created. This number is incremented by 1 for
-each response. If the file does not exit at the time of response
+each response. If the file does not exist at the time of response
generation a new file is created with serial number 1. (Mandatory)
=item B<crypto_device>