In some cases it might be essential to cache the card PIN. For example for mass or batch signatures or in case someone else has to sign lots of invoices without being allowed to know the PIN.
Aloaha offers various ways to cache a PIN. The PIN can be saved in the registry or in plain text file on disk. Even though the registry hives and/or the files on disk can be protected to be fairly secure - there is still a risk of having a virus spying on these PINs.
The absolutly most secure way to cache a PIN is to instruct the card itself to keep the PIN while the connection to the card is open. A couple of cards do support secure PIN caching out of the box. Some of these cards are Sicrypt, G&D StarKey 200 or D-SIGN multicard.
Secure PIN Entry together with Secure PIN Caching is the ideal solution for high secure mass signatures!
Secure PIN Caching demonstration
If you click on the link below you can see a secure PIN caching demonstration recorded in "flash". As you can see in the demo ONLY the first time a document is being signed the PIN is being validated!
Some cards (For example D-Trust multicard) are able to "keep the card open" between the signature transactions. With such cards it is possible just to select some PDF documents in the windows explorer, right click and sign them in one Batch.