Microsoft Technology Licensing, LLC

Nikhil Aggarwal

Ayla Kol

Kameshwar Jayaraman

Yoganand Rajasekaran

Girish Nagaraja

Paul Howard Rich

Jaclynn Hiranaka

Systems, methods, and software technology for managing keys used to encrypt data at-rest and decrypt the data when serving requests for the data. In an implementation, a data service receives a request for data that has been encrypted at rest using a data key, wherein the data key has been encrypted using a policy key, and wherein the policy key has been encrypted using a root key. When the root key is unavailable, the data service requests a key service to decrypt the policy key using an alternative root key. When the data service receives the policy key in an unencrypted state from the key service, it decrypts the data key using the policy key and decrypts the data using the data key.

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Nikhil Aggarwal