Patents Assigned to DISTRIBUTED MANAGEMENT SYSTEMS LTD.
  • Patent number: 9369464
    Abstract: Disclosed is a key management method for administering a token with an administrative server and an authentication server wherein a set of keys stored therein in use differs so that at least a mutually exclusive key is stored in each of the token, the administrative server or the authentication server, the method comprising the steps of: the token transmitting an identity proxy ID 1 encrypted with an encryption key Key 1; the administrative server generating data Key 1a and Key 1b from Key 1 stored therein, whereby Key 1a and Key 1b can be used in conjunction to derive Key 1 but not separately; the administrative server generating an identity proxy ID 2 and an encryption key Key 2, whereby the administrative server records a token profile comprising an association information among ID 2, Key 1b and Key 2; the administrative server communicating ID 2, Key 1a and Key 2 to the token and the token storing ID 2, Key 1a and Key 2 wherein Key 2 is stored therein encrypted with Key 1; the administrative server commun
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: June 14, 2016
    Assignee: DISTRIBUTED MANAGEMENT SYSTEMS LTD.
    Inventor: Basil Philipsz
  • Publication number: 20150046695
    Abstract: Disclosed is a key management method for administering a token with an administrative server and an authentication server wherein a set of keys stored therein in use differs so that at least a mutually exclusive key is stored in each of the token, the administrative server or the authentication server, the method comprising the steps of: the token transmitting an identity proxy ID 1 encrypted with an encryption key Key 1; the administrative server generating data Key 1a and Key 1b from Key 1 stored therein, whereby Key 1a and Key 1b can be used in conjunction to derive Key 1 but not separately; the administrative server generating an identity proxy ID 2 and an encryption key Key 2, whereby the administrative server records a token profile comprising an association information among ID 2, Key 1b and Key 2; the administrative server communicating ID 2, Key 1a and Key 2 to the token and the token storing ID 2, Key 1a and Key 2 wherein Key 2 is stored therein encrypted with Key 1; the administrative server commun
    Type: Application
    Filed: February 14, 2013
    Publication date: February 12, 2015
    Applicant: DISTRIBUTED MANAGEMENT SYSTEMS LTD.
    Inventor: Basil Philipsz