Patents by Inventor Paul Howard Rich

Paul Howard Rich has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11044079
    Abstract: 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.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: June 22, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Ayla Kol, Kameshwar Jayaraman, Yoganand Rajasekaran, Jaclynn Hiranaka, Girish Nagaraja, Nikhil Aggarwal, Paul Howard Rich
  • Publication number: 20200099519
    Abstract: 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.
    Type: Application
    Filed: April 19, 2019
    Publication date: March 26, 2020
    Inventors: Ayla Kol, Kameshwar Jayaraman, Yoganand Rajasekaran, Jaclynn Hiranaka, Girish Nagaraja, Nikhil Aggarwal, Paul Howard Rich