Distributed scalable cryptographic access control

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7509492
APP PUB NO 20040123104A1
SERIAL NO

10473264

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Published resources are made available in an encrypted form, using corresponding resource keys, published through resource key files, with the publications effectively restricted to authorized peer systems only by encrypting the resource keys in a manner only the authorized peer systems are able to recover them. In one embodiment, the resource keys are encrypted using encryption public keys of the authorized peer systems or the groups to which the authorized peer system are members. In one embodiment, the encryption public keys of individual or groups of authorized peer systems are published for resource publishing peer systems through client and group key files respectively. Group encryption private keys are made available to the group members through published group key files. Further, advanced features including but not limited to resource key file inheritance, password protected publication, obfuscated publication, content signing, secured access via gateways, and secured resource search are supported.

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Patent Owner(s)

Patent OwnerAddress
MICROSOFT TECHNOLOGY LICENSING LLCONE MICROSOFT WAY REDMOND WA 98052

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Boyen, Xavier Mountain View, US 20 914
Qian, Zhenyu Cupertino, US 9 372
Teodosiu, Dan Bellevue, US 69 4793

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