Microsoft Technology Licensing, LLC

Alexander Geoffrey Howells

George Adrian Drumea

Donghoon Park

Haris Farhan Mohammad

Vishwa Shobhit Sahay

Zhifeng Wang

Alexey Altoukhov

Sun Kim Davey

Jade Megan DSouza

Andrew Micheal Relyea

Karim Salem

Avanindra Paruchuri

Systems, methods, apparatuses, and computer program products are disclosed for employing a hybrid boot to reimage a target device using a mobile device. A mobile device provides, to a target device, a boot file configured to execute an intermediate operating system. The mobile device performs a user presence check to determine whether the target device is in proximity to the mobile device. Responsive to determining that the target device is in proximity to the mobile device, the mobile device provides, to the intermediate operating system on the target device, transfer information associated with at least a first restricted-access portion of a customized system image to cause the intermediate operating system to obtain the first restricted-access portion of the customized system image and reimage the target device based at least on the first restricted-access portion of the customized system image.

Hybrid boot for system reimaging

Some embodiments provide proxies or other servers in a computing network with independent certificate chains which facilitate mitigation of certificate problems. Independence criteria are enforced against two or more installed certificate chains on a given server, identifying and avoiding dependencies such as cross-certification, shared certificate authorities, shared revocation lists, or shared certificate status protocol endpoints between the certificate chains. Some embodiments serve independent certificates concurrently in an active-active certificate server configuration. The certificate chains' coexistence and their independence from one another facilitates transitioning the network from a failing issuer or a failed chain to a chain that works better, thereby improving network resilience and limiting damage from certificate problems. By dynamically updating certificate bindings, some embodiments also facilitate safe deployment of new certificates during migration from one issuer to another. Certificate distributions are computed from issuer ratios, network topology, or both.

Secure certificate chain transition

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Sammamish, WA, United States of America

Alexander Geoffrey Howells