Patents by Inventor Thomas L. Gindin

Thomas L. Gindin 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).

  • Patent number: 7543147
    Abstract: A method for creating a proof of possession confirmation for inclusion by an attribute certificate authority into an attribute certificate, the attribute certificate for use by an end user. The method includes receiving from the attribute certificate authority in response to a request by the end user, a plurality of data fields corresponding to a target system, the identity of the end user, and a proof of identity possession by the end user. The method further includes preparing a data structure corresponding to an authorization attribute of the attribute certificate, the data structure including a target system name, the identity of the end user, and the key identifier of the end user. Using a private key associated with the target system, the method includes signing the data structure resulting in a proof of possession confirmation, and sending the proof of possession confirmation to the attribute certificate authority for inclusion into the attribute certificate.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: June 2, 2009
    Assignee: International Business Machines Corporation
    Inventors: Messaoud B. Benantar, Thomas L. Gindin, James W. Sweeny
  • Patent number: 7143285
    Abstract: A method for creating a proof of possession confirmation for inclusion by a certification authority into a digital certificate, the digital certificate for use by an end user, is disclosed. In an exemplary embodiment of the invention, the method includes receiving from the certification authority, in response to a certificate request by the end user, a plurality of data fields corresponding to a target host system, the end user, and a form of proof of identity possession by the end user. The content of the plurality of data fields is analyzed and the accuracy thereof is verified. If the plurality of data fields is verified as accurate, then a signed object is sent to the certification authority, the signed object comprising the proof of possession confirmation.
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: November 28, 2006
    Assignee: International Business Machines Corporation
    Inventors: Thomas L. Gindin, Messaoud Benantar, James W. Sweeny, John C. Dayka
  • Patent number: 7139911
    Abstract: A method of certifying a host-identification mapping extension included in a digital certificate, the digital certificate issued and signed by a specific certification authority. In an exemplary embodiment of the invention, the method includes assigning a trust value for each certification authority included in a set of certification authorities. A digital certificate containing the host-identification mapping extension therein is received, with the host-identification mapping extension further containing a plurality of identification attributes therein. The plurality of identification attributes are evaluated, along with the trust value assigned to the specific certification authority issuing the digital certificate. A determination is then made, based upon the plurality of identification attributes and the trust value, as to whether the host-mapping extension is to be certified.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: November 21, 2006
    Assignee: International Business Machines Corporation
    Inventors: James W. Sweeny, Messaoud Benantar, John J. Petreshock, Thomas L. Gindin, John C. Dayka
  • Patent number: 6854056
    Abstract: A method or system is presented for coupling identities through the use of digital certificates, thereby allowing a client to be authenticated for a variety of services without those services having to modify their existing methods of authentication. The client generates a request for a digital certificate containing its host identity for a targeted host and secret data associated with its host identity. The secret data has been encrypted using the public key of the certifying authority that receives the request for the digital certificate. The certifying authority decrypts the secret data using its private key and encrypts the secret data using the public key of the targeted host. The digital certificate is then generated and returned to the client. At some point in time, a host receives the certificate from the client and obtains the client's host identity from the certificate, i.e. the host identity uniquely identifies the client or the user of the client to the host.
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: February 8, 2005
    Assignee: International Business Machines Corporation
    Inventors: Messaoud Benantar, Thomas L. Gindin, Ivan Milman
  • Publication number: 20030065920
    Abstract: A method and apparatus for creating a digital certificate for a subject in an information handling system in which users of a host system authenticate themselves to the host system by presenting a host user ID and a host password. The host system has a host authentication system associated with it for automatically authenticating users to the host system using the host authentication information. Upon receiving a certification request from a subject, a certificate authority determines whether the certification request is for a general user certificate or for a host user certificate. If the certification request is for a general user certificate, the certificate authority places the request in a queue for processing by a human administrator. If the certification request is for a host user certificate, the certificate authority obtains a host user ID and password from the requester and authenticates the requester by presenting this host authentication information to the host authentication system.
    Type: Application
    Filed: October 1, 2001
    Publication date: April 3, 2003
    Applicant: International Business Machines Corporation
    Inventors: Messaoud Benantar, John Dayka, Thomas L. Gindin, James W. Sweeny
  • Publication number: 20030009662
    Abstract: A method for creating a proof of possession confirmation for inclusion by a certification authority into a digital certificate, the digital certificate for use by an end user, is disclosed. In an exemplary embodiment of the invention, the method includes receiving from the certification authority, in response to a certificate request by the end user, a plurality of data fields corresponding to a target host system, the end user, and a form of proof of identity possession by the end user. The content of the plurality of data fields is analyzed and the accuracy thereof is verified. If the plurality of data fields is verified as accurate, then a signed object is sent to the certification authority, the signed object comprising the proof of possession confirmation.
    Type: Application
    Filed: May 22, 2001
    Publication date: January 9, 2003
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Thomas L. Gindin, Messaoud Benantar, James W. Sweeny, John C. Dayka
  • Publication number: 20020144107
    Abstract: A method of certifying a host-identification mapping extension included in a digital certificate, the digital certificate issued and signed by a specific certification authority. In an exemplary embodiment of the invention, the method includes assigning a trust value for each certification authority included in a set of certification authorities. A digital certificate containing the host-identification mapping extension therein is received, with the host-identification mapping extension further containing a plurality of identification attributes therein. The plurality of identification attributes are evaluated, along with the trust value assigned to the specific certification authority issuing the digital certificate. A determination is then made, based upon the plurality of identification attributes and the trust value, as to whether the host-mapping extension is to be certified.
    Type: Application
    Filed: February 28, 2001
    Publication date: October 3, 2002
    Applicant: International Business Machines Corporation
    Inventors: James W. Sweeny, Messaoud Benantar, John J. Petreshock, Thomas L. Gindin, John C. Dayka