Patent 9866393 was granted and assigned to Amazon on January, 2018 by the United States Patent and Trademark Office.
A system and method for generating a signature for a document using an identity verification token. The identity verification token receives a request that includes a set of credential data from a signatory, obtains a document identifier that identifies the document to a service provider, and obtains a token identifier that identifies the identity verification token to the service provider. The identity verification token generates the signature based at least in part on the obtained document identifier, the received set of credential data, and obtained the token identifier, and provides the signature.