Sequitur Labs, Inc.

Mark Reed

Philip Attfield

Paul Chenard

Simon Curry

Vincent Ting

Julia Narvaez

Michael Thomas Hendrick

Daniel Schaffner

Robert Komar

David Baar

A method for verifying a set of policy instructions to be used by a policy decision point (PDP) in adjudicating access requests to protected resources. The policy instructions are in the form of Horn clauses or conditional tag-expressions that are validated against a known test policy or desired outcome. The policy instructions are then compiled into aggregate form. When a plurality of policy instructions creates a conflict, the policy instructions are hierarchically organized to resolve said conflict.

System and method for secure, policy-based access control for mobile computing devices

A system for controlling file access on a mobile computing device. Policy conditions are held at a policy decision point (PDP) and can be dynamically modified at run-time. Access requests to a file or set of files are intercepted by an agent that subsequently brokers the adjudication of said request via a secure, encrypted and hidden back-channel where the requestor is never allowed access to or knowledge of either the adjudication process or the parameters associated with adjudication. The PDP then returns either an access approval or denial based on said policy conditions.

A system and methods for context-aware and situation-aware secure, policy-based access control for computing devices. The invention enhances the previously disclosed policy-based control system by adding contextual information to the set of resources by which a policy decision point can adjudicate a query to execute a transaction or to access a secure resource. Policy information points are able to store information collected over time related to resources under the control of the system. The system can further include an analytical processing engine capable of inferring new information from existing information that also can be used by the decision points. The policy information points provide context to the decision. They are also able to consider and include information that is external to the system or detected outside the system itself.

System and methods for context-aware and situation-aware secure, policy-based access control for computing devices

Systems and methods for secure, policy-based, access control and management of mobile computing devices, including policy decision enforcement mechanisms, device and private network presence testing, aspects of file system controls, policy set sanity checking algorithms, performance optimizations.

Policy-based client-server systems and methods for attestation in managing and securing mobile computing devices. Attestation provides the means to make efficient, secure, and reproducible use of knowledge possessed by trusted expert parties and authorities within the expression and enforcement of policies for controlling use of, and access to, onboard software and hardware, network capabilities, and remote assets and services. Aspects of secure attestation of applications that use shared and dynamically loaded libraries are presented, as well as potential business models for attestation used in such a policy-based system. The system of the present invention resolves attestation record conflicts using digital certificates and digital signatures.

System and methods for secure utilization of attestation in policy-based decision making for mobile device management and security

Policy-based client-server systems and methods for attestation in managing and securing mobile computing devices. Attestation provides the means to make efficient, secure, and reproducible use of knowledge possessed by trusted expert parties and authorities within the expression and enforcement of policies for controlling use of, and access to, onboard software and hardware, network capabilities, and remote assets and services. Aspects of secure attestation of applications that use shared and dynamically loaded libraries are presented, as well as potential business models for attestation used in such a policy-based system.

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Redmond, WA, United States of America

Mark Reed