It is a common practice in enterprises such that when sending confidential documents across, it has to be digitally
signed to maintain both the integrity, confidentiality and establish sender identity.
When there is need to print such digitally signed document, user need to verify the signature on the PC first and then
has to give it for print. When the document is directly sent to the recipient or to the web enabled printer as e-print job
through cloud, there is no way he can verify validity and integrity on printer itself as of today.
The proposed solution addresses the need to how a recipient can print a digitally signed document without the need
for any PC to verify the signature. It describes how a digitally signed document being sent as e-print job will be rendered
on cloud to fetch sender credentials, how to send credentials to printer, a proposed design solution to verify signature
on the printer and a way to enable user to accept sender validity and then allow print.
This avoids lot of hassles for user to understand the verification process as printer can do it for him. Even when
submitting the document from PC, there is no need to verify signature on PC. Instead printer can handle that as it would
have the same root CA installed on it. In case if there is no CA installed on PC to verify the signature, printer can
efficiently handle if it has proper CA installed.
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INC, HP, "A METHOD TO VERIFY SIGNATURE OF DIGITALLY SIGNED DOCUMENTS ON PRINTER AND ENABLE PRINT", Technical Disclosure Commons, (March 06, 2019)