Microsoft Technology Licensing, LLC

Javier Dalzell

Venkatesh Veeraraghavan

Christian Roy

Bryant Fong

Benoit Schmitlin

Ambrose Thomas Treacy

Alexander Hopmann

Sarat Chandra Subramaniam

William R Taylor

Huy Q Nguyen

Kaushik Raj

Saji Varkey

Sadia Sharmin

An extensible mechanism for providing access control for logical objects in a network environment. A security broker is able to dynamically register one or more claims providers, each of which can assert one or more claims about logical objects. The claims providers may be purpose built or may be third party applications which expose data or business rules for use. Claims may be augmented by additional claims providers after the original claim is asserted. The applicability of claims may be scope limited either at the time the claims provider is registered or when the user requests that a security token be issued.

Extensible mechanism for securing objects using claims

A security token service generates a security token for a user that is associated with a client and stores the full security token within a memory. The security token includes an identity claim that represents the identity of the generated security token. Instead of passing the entire security token back to the client, the identity claim is returned to the client. For each request the client makes to the service, the client passes the identity claim in the request instead of the full security token having all of the claims. The identity claim is much smaller then the full security token. When a computing device receives the identity claim within the request from the user, the identity claim is used to access the full security token that is stored in memory.

Using cached security tokens in an online service

A server system receives and installs multiple claim provider plug-ins. Each of the claim provider plug-ins implements the same software interface. However, each of the claim provider plug-ins can provide claims that assert different things. Claims provided by the claim provider plug-ins can be used to control access of users to a resource.

Pluggable claim providers

A server system sends a first credential request to a passive requestor at a client device. After sending the first credential request, the server system receives a credential for a user of the client device. If the credential is valid, the server system can provide the passive requestor with access to a resource provided by the server system. After providing the passive requestor with access to the resource, the server system provides an active requestor at the client device with access to the resource without sending a second credential request to the active requestor. Consequently, it may not be necessary for a user of the client device to provide credentials twice in order for the passive requestor and the active requestor to access the resource.

Transition from WS-Federation passive profile to active profile

Claim based identities are transformed to a set of credentials and securely stored in a secure data store using a number of encryption schemes. The credentials are then used to authenticate applications requiring specific credential types. For each call to the secure store system, a client application may provide a claims token issued by a trusted source, which is used to search for corresponding credentials in the secure data store if the credentials have been created previously for the user.

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Issaquah, WA, United States of America

Javier Dalzell