Patent Document ID: 9800416
Application ID: 14992986

Base Claim:
1. A method to validate a digital signature for an electronic document, comprising: receiving, at a validation server and from a computing device, a request including the digital signature and a second digest, the digital signature including a first digest of the electronic document, the second digest being generated from a representation of the electronic document at the computing device; comparing, by the validation server, the first digest of the electronic document with the second digest; generating, by the validation server, a validation result for the digital signature based on the comparing, the validation result being generated independent of the electronic document being available to the validation server; and sending, by the validation server, the validation result for the digital signature to the computing device.

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Claim 8:
8. The method of claim 1 , wherein the receiving and the sending are performed over a channel that is secured by a security protocol and connects the validation server and the computing device.