Gemalto Sa

Schlumberger Technology Corporation

Gemalto Inc.

Apostol Vassilev

Asad Mahboob Ali

Kapil Sachdeva

Sylvain Jacques Prevost

HongQian Karen Lu

Bertrand Du Castel

Ed Dolph

A secure portable electronic device for providing secure services when used in conjunction with a host computer. The secure portable device includes a read-only memory partition, a read/write memory partition, and a secure memory partition. The secure portable device includes instructions stored in the read-only partition including a host agent containing instructions executable by the host computer. The secure portable device also includes instructions stored in the secure memory partition. These instructions include a card agent containing instructions executable by central processing units secure portable electronic device, and includes a card agent communications module for communicating with the host agent; and a security module for accessing private information stored in the secure memory partition. The host agent includes a host agent communications module for communicating with the card agent and at least one function requiring use of private information stored in the secure memory partition of the portable device and operable to transmit a request to the card agent to perform a corresponding function requiring the use of private information stored on the portable device.

Method and system of providing security services using a secure device

A system and a method for operating a device that is not capable of independently maintaining a local time clock to enforce a time-based transaction policy that requires a reliable time reference. The device establishes a secure communications channel to one or more network-attached time sources and inquires of each of the network-attached time-sources as to the current time using the secure communications channel. The device receives the current time from the network-attached time-sources and uses the received current times to estimate a current calendar time and to compute a reliability index associated with the estimated current calendar time. The device uses the estimated current calendar time and reliability index to enforce the time-based transaction policy.

Enforcing time-based transaction policies on devices lacking independent clocks

Secure authentication of a user on a host computer to a web server including a security device acquiring trust or a security context from the web server. The security device is operable of providing an X.509 certificate to a browser plug-in on the host computer. The browser plug-in on the host computer performing authentication of the security device and in response providing user credentials to the security device. The security device performing authentication of the user and requests a security context from the web server. In response, the web server provides a security context to the security device. The security device delegates the web server trust by transmitting the context to the host computer and enabling the user to securely access resources on the web server.

Method for secure delegation of trust from a security device to a host computer application for enabling secure access to a resource on the web

In a method for modeling a reservoir having a horizon surface with a reverse fault, a volume of the reservoir is partitioned into fault blocks. A bounding surface of each of the fault blocks includes a portion of the reverse fault. The interior of each of the fault blocks includes only single valued horizon surfaces. Horizon data describing the reservoir is partitioned into patches, each patch corresponding to a fault block. A horizon surface patch model is derived from the data patch in the interior of each fault block. The horizon patch model includes an up-thrown or down-thrown fault trace, which defines the intersection of the surface patch with the bounding reverse fault. Continuity constraints are defined to ensure that horizon surface patch models on the opposite sides of the reverse fault coincide outside of the real fault.

Growing community of inventors

Austin, TX, United States of America

Apostol Vassilev