Patents by Inventor Caroline Kudla

Caroline Kudla 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).

  • System and method for constraint resolution
    Patent number: 7779257
    Abstract: A method of determining the compatibility of respective information associated with at least two parties is described.
    Type: Grant
    Filed: December 6, 2005
    Date of Patent: August 17, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Christopher William Preist, Javier Esplugas Cuadrado, Caroline Kudla, David Trastour
  • Digital signature method and apparatus
    Patent number: 7676677
    Abstract: A digital signature method and apparatus is provided in which a first party with a first public/private key pair forms an ambiguous signature on subject data using at least the private key of the first key pair, a keystone initially only known to the first party, and the public key of at least one other public/private key-pair. This signature is ambiguous in that a signature-checking party can only verify that the signature is in the set comprising a signature created by the first party and a respective signature created by the possessor of the private key of the or each of the key pairs the public key of which was used in creating the signature. Revelation of the keystone renders the signature unambiguous. Such an ambiguous signature can be used to implement a fair exchange of signatures between any number of parties, with the exchanged signatures being ambiguous signatures until revelation of the initial signer's keystone.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: March 9, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Liqun Chen, Caroline Kudla
  • System and method for constraint resolution
    Publication number: 20060155996
    Abstract: A method of determining the compatibility of respective information associated with at least two parties is described.
    Type: Application
    Filed: December 6, 2005
    Publication date: July 13, 2006
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Christopher Preist, Javier Cuadrado, Caroline Kudla, David Trastour
  • Digital signature method and apparatus
    Publication number: 20050076223
    Abstract: A digital signature method and apparatus is provided in which a first party with a first public/private key pair forms an ambiguous signature on subject data using at least the private key of the first key pair, a keystone initially only known to the first party, and the public key of at least one other public/private key-pair. This signature is ambiguous in that a signature-checking party can only verify that the signature is in the set comprising a signature created by the first party and a respective signature created by the possessor of the private key of the or each of the key pairs the public key of which was used in creating the signature. Revelation of the keystone renders the signature unambiguous. Such an ambiguous signature can be used to implement a fair exchange of signatures between any number of parties, with the exchanged signatures being ambiguous signatures until revelation of the initial signer's keystone.
    Type: Application
    Filed: September 30, 2004
    Publication date: April 7, 2005
    Inventors: Liqun Chen, Caroline Kudla