DigiStamp operates several
time stamp server locations to ensure reliable availability
to our customers. Also, the time stamp servers periodically
change their "time stamp keys" to improve
security. All the time stamps are verified using
a singe public key certificate via a standard technique
called certificate chaining to a single, imported
certificate. You will need to import the DigiStamp
CA certificate into your Acrobat software. There
is background information about DigiStamp public
key certificates here.
Here is an example of when
you need to take another step to accept the DigiStamp
public key certificate:
Here is the method for importing
the DigiStamp CA certificate:
"Browse..."
to the certificate file that you download to your
computer from the DigiStamp web site: