Patents by Inventor Hakon Liberg

Hakon Liberg 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).

  • Method and system for the authentication of a public key certificate
    Patent number: 8028333
    Abstract: A method and system of authenticating a public key certificate for a relying party (RP). A Certificate Authority (CA), who issued the certificate, is a member of a Public Key Infrastructure (PKI) having a Certificate Policy (CP). First quality levels required of the CA by the RP are accessed by a certificate classification service (CCS) and corresponding second quality levels possessed by the CA are ascertained by the CCS. At least one quality characteristic pertaining to the second quality levels relates to at least one element of the CP. The ascertained second quality levels are compared by the CCS with the corresponding accessed first quality levels. A result of the comparing, communicated by the CCS to the RP, is that the certificate is authenticated if the comparing has determined that each first quality level is not less than each corresponding second quality level.
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: September 27, 2011
    Assignee: International Business Machines Corporation
    Inventors: Konrad Falch, Trond Lemberg, Hakon Liberg, Anund Lie, Per Myrseth, Jon Olnes
  • METHOD AND SYSTEM FOR THE AUTHENTICATION OF A PUBLIC KEY CERTIFICATE
    Publication number: 20080028454
    Abstract: A method and system of authenticating a public key certificate for a relying party (RP). A Certificate Authority (CA), who issued the certificate, is a member of a Public Key Infrastructure (PKI) having a Certificate Policy (CP). First quality levels required of the CA by the RP are accessed by a certificate classification service (CCS) and corresponding second quality levels possessed by the CA are ascertained by the CCS. At least one quality characteristic pertaining to the second quality levels relates to at least one element of the CP. The ascertained second quality levels are compared by the CCS with the corresponding accessed first quality levels. A result of the comparing, communicated by the CCS to the RP, is that the certificate is authenticated if the comparing has determined that each first quality level is not less than each corresponding second quality level.
    Type: Application
    Filed: August 23, 2007
    Publication date: January 31, 2008
    Inventors: Konrad Falch, Trond Lemberg, Hakon Liberg, Anund Lie, Per Myrseth, Jon Olnes
  • Method, system and service for the authentication of a public key certificate
    Patent number: 7313689
    Abstract: A method, system, and service of authenticating a public key certificate for a relying party (RP). A Certificate Authority (CA), who issued the certificate, is a member of a Public Key Infrastructure (PKI) having a Certificate Policy (CP). First quality levels required of the CA by the RP are accessed by a certificate classification service (CCS) and corresponding second quality levels possessed by the CA are ascertained by the CCS. At least one quality characteristic pertaining to the second quality levels relates to at least one element of the CP. The ascertained second quality levels are compared by the CCS with the corresponding accessed first quality levels. A result of the comparing, communicated by the CCS to the RP, is that the certificate is authenticated if the comparing has determined that each first quality level is not less than each corresponding second quality level.
    Type: Grant
    Filed: April 5, 2004
    Date of Patent: December 25, 2007
    Assignee: International Business Machines Corporation
    Inventors: Konrad Falch, Trond Lemberg, Håkon Liberg, Anund Lie, Per Myrseth, Jon Olnes
  • Method and service for the authentication of a public key certificate by means of quality characteristics
    Publication number: 20060174122
    Abstract: A method, system, and service of authenticating a public key certificate for a relying party (RP). A Certificate Authority (CA), who issued the certificate, is a member of a Public Key Infrastructure (PKI) having a Certificate Policy (CP). First quality levels required of the CA by the RP are accessed by a certificate classification service (CCS) and corresponding second quality levels possessed by the CA are ascertained by the CCS. At least one quality characteristic pertaining to the second quality levels relates to at least one element of the CP. The ascertained second quality levels are compared by the CCS with the corresponding accessed first quality levels. A result of the comparing, communicated by the CCS to the RP, is that the certificate is authenticated if the comparing has determined that each first quality level is not less than each corresponding second quality level.
    Type: Application
    Filed: April 5, 2004
    Publication date: August 3, 2006
    Inventors: Konrad Falch, Trond Lemberg, Hakon Liberg, Anund Lie, Per Myrseth, Jon Olnes