International Business Machines Corporation

Elsie A Van Herreweghen

Matthias Schunter

Michael Waidner

Jonathan A Poritz

Jan Leonard Camenisch

Xuan Liu

Guenter Karjoth

Luke James O'Connor

Edith Gail Schonberg

Kathryn Ann Bohrer

Bernhard Jansen

Calvin Stacy Powers

Charles Campbell Palmer

Philippe A Janson

Arthur Miles Gilbert

Steven B Adler

Gene Y Tsudik

Nigel Howard Julian Brown

Adam Charles Nelson

Michael Schnyder

Endre Felix Bangerter

Dogan Kesdogan

Michael Robert McCullough

Refik Molva

Ralf Ch Hauser

Matthew P Leonard

Methods and apparatus are provided for generating an access control policy data structure for a single-authorization-query access control system from a source policy data structure of an access control system in which primary authorizations can be subject to auxiliary constraints. Authorizations in the data structures are defined in terms of subject, resource and action elements. For each resource in a set of resources in the source policy data structure, the data structure is analyzed to identify primary authorizations relating to that resource. For each primary authorization, policy data which represents a policy defining an access rule expressing that authorization is generated and stored in system memory and analyzed to identify any auxiliary constraints associated with that primary authorization. For each auxiliary constraint so identified, policy data is generated and stored in system memory.

Access control policy conversion

A method and system for verifying authenticity of an application in a computing-platform operating in a Trusted Computing Group (TCG) domain is provided. The method includes computing one or more integrity measurements corresponding to one or more of the application, a plurality of precedent-applications, and an output file. The output file includes an output of the application, the application is executing on the computing-platform. Each precedent-application is executed before the application. The method further includes comparing one or more integrity measurements with re-computed integrity measurements. The re-computed integrity measurements are determined corresponding to one or more of the application, the plurality of precedent-applications, and the computing-platform.

Method and system to authenticate an application in a computing platform operating in trusted computing group (TCG) domain

In a computer, a first set of object classes are provided representing active entities in an information-handling process and a second set of object classes are provided representing data and rules in the information-handling process. At least one object class has rules associated with data. The above-mentioned objects are used in constructing a model of an information-handling process, and to provide an output that identifies at least one way in which the information-handling process could be improved. One aspect is a method for handling personally identifiable information. Another aspect is a system for executing the method of the present invention. A third aspect is as a set of instructions on a computer-usable medium, or resident in a computer system, for executing the method of the present invention.

Using an object model to improve handling of personally identifiable information

Method and device for verifying the security of a computing platform. In the method for verifying the security of a computing platform a verification machine is first transmitting a verification request via an integrity verification component to the platform. Then the platform is generating by means of a trusted platform module a verification result depending on binaries loaded on the platform, and is transmitting it to the integrity verification component. Afterwards, the integrity verification component is determining with the received verification result the security properties of the platform and transmits them to the verification machine. Finally, the verification machine is determining whether the determined security properties comply with desired security properties.

Method and device for verifying the security of a computing platform

A robust and secure password (or key) change method between a user and an authentication server in a distributed communication network is disclosed. The protocol requires the exchange of only two messages between the user desiring the key change and the server, the user's request including, at least partly encrypted, an identification of the sending user, old and new keys, and two nonces, at least one including a time indication. The authentication server's response includes a possibly encrypted accept/reject indication and the regularly encrypted request from the user.

Method and system for changing an authorization password or key in a

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Horgen, Switzerland

Elsie A Van Herreweghen