Microsoft Technology Licensing, LLC

David Lewis Fisher

Chun-Hung Lin

Kavitha Radhakrishnan

David J Nicholson

Michael D Ritche

Christopher B Dove

Embodiments are directed to establishing the integrity of a portion of data on at least one level of a plurality of network stack levels and automatically continuing an established federation relationship between at least two federation computer systems. In an embodiment, a first federation computer system receives a digital signature corresponding to a computer system signed by a digital signature which includes the computer system's identity and other federation relationship information configured to establish a trusted federation relationship between a first federation computer system and a second federation computer system. The first federation computer system attempts to validate the received digital signature at a first level of a network stack and determines that the validation at the first network stack layer was unsuccessful. The first federation computer system then validates the received digital signature at a second, different level of the network stack.

Growing community of inventors

Bellevue, WA, United States of America

David Lewis Fisher