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limitation of the native driver that interferes with the PlanetPress Suite database
requests.
Specifically for PlanetPress Capture, these considerations mean the following:
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In Microsoft Access, the total size of stored document cannot be larger than 2GB and
this database will be very unstable in implementation with more than a few thousand
pattern sequences being used simultaneously. It is only suggested for small
implementation with less than 10 pens, or for demos.
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In MySQL, the 16 megs packet size limit can be an issue if the PDFs created by Capture
are larger than this size; An error saying "MySQL Server has gone away" would appear in
this case. This can be fixed by configuring the max_allowed_packet setting in the MySQL
Configuration (Reference).
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Also in MySQL, if a timeout occurs on simultaneous record access, resubmitting the PGC
for processing should resolve the issue.
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In SQL Server, if one of your requests is dropped because of simultaneous accesses,
resubmitting the PGC should resolve the issue.
Security Considerations
PlanetPress Capture introduces new and efficient methods for digitally capturing the contents
of ink laded out on physical paper. However, because of its nature, some end users may voice
concerns about security and privacy. Are signatures secure? Could their transmission be
intercepted? How can the contents of the Anoto digital pen be protected from malicious users?
Before addressing these concerns, it must be pointed out that these security issues are not
introduced by this new technology. In fact, they are essentially the same concerns that arise
with plain pen and paper: if the signed document can be scanned, then any markings on the
page can be extracted and reused by anyone with even limited technical skills. In addition, the
signed document has, by definition, a longer life span than the temporary storage location of the
digital pen. Consequently, it is still the most vulnerable piece of the workflow and as such, it
should be the first objective of any security effort.
In other words, as long as the physical piece of paper bearing markings is accessible to
malicious users, no amount of security protocols can protect the signed contents. It is only after
the paper trail has been secured that the security and privacy issues specific to PlanetPress
Capture should be addressed.
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