Patents by Inventor Jonathan C. Kaplan

Jonathan C. Kaplan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Distributed information system and protocol for affixing electronic signatures and authenticating documents
    Patent number: 6938157
    Abstract: A system can process a digital representation (DF) of a document with a one-way cryptographic hash function (CHF) to yield a digital fingerprint (DFP) value that is associated with the DF. A document identification number (DID) is created, uniquely associated with the DFP, and with DID and DFP are associated optional credential information (C). A registration certificate DFC that represents an optional electronic signature associated with the document and that includes the DID and DFP is promulgated and archived at a plurality of storage locations. The system can authenticate whether a putative document is the original document by generating a digital fingerprint value for the putative document and comparing it to DFP retrieved from various of the storage locations. Authentication can confirm that the electronic signature is unaltered.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: August 30, 2005
    Inventor: Jonathan C. Kaplan
  • Distributed information system and protocol for affixing electronic signatures and authenticating documents
    Publication number: 20020023220
    Abstract: A system can process a digital representation (DF) of a document with a one-way cryptographic hash function (CHF) to yield a digital fingerprint (DFP) value that is associated with the DF. A document identification number (DID) is created, uniquely associated with the DFP, and with DID and DFP are associated optional credential information (C). A registration certificate DFC that represents an optional electronic signature associated with the document and that includes the DID and DFP is promulgated and archived at a plurality of storage locations. The system can authenticate whether a putative document is the original document by generating a digital fingerprint value for the putative document and comparing it to DFP retrieved from various of the storage locations. Authentication can confirm that the electronic signature is unaltered.
    Type: Application
    Filed: August 17, 2001
    Publication date: February 21, 2002
    Applicant: Distributed Trust Management Inc.
    Inventor: Jonathan C. Kaplan