Patent ID: 8745748

Claim:
A computer-implemented method for cancelling application of a digital signature to a form file, the method comprising: requesting, using hardware processor by a protocol client, application of a digital signature to the form file associated with a form, wherein the application of a digital signature is performed using an InfoPath Digital Signing Protocol, and wherein the requesting application of a digital signature comprises a message to retrieve a form file hash, wherein the message to retrieve a form file hash is a Retrieve Form File Hash request; wherein the protocol client receives a Retrieve Form File Hash response comprising an error code value, digest value associated with the form file, and a set of properties the protocol server uses to persist data across protocol message; receiving an indication of an error in processing of the request for application of a digital signature; and after receiving the indication of the error, requesting, by the protocol client, cancellation of the application of the digital signature, wherein the requesting cancellation comprises a semicolon separated string of values comprising protocol server specific information.