Akamai Technologies, Inc.

Vishal A Patel

Charles E Gero

David Tang

Methods for implementing Proof of Work (PoW) as an authorization signal are provided in a multi-node distributed operating environment wherein a set of authorization proxies are used to control access to protected resources. Each authorization proxy is enabled to provide PoW challenges to requesting clients. The methods enforce the constraint that PoW can only be exchange for access once. The approach thus prevents replays of PoW, e.g., wherein a client could do the work and then use that PoW for access multiple times, or a nefarious user could steal the PoW from another client to gain access to the protected resource.

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Billerica, MA, United States of America

Vishal A Patel