Patents by Inventor Joseph Eichenhofer

Joseph Eichenhofer 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).

  • Tertiary-level encryption key scheme
    Patent number: 12470380
    Abstract: A system, method, and computer readable medium is disclosed for accessing an object that is encrypted within at least a tertiary-level encryption key scheme. This includes receiving a request to access blocks making up an object by content management system and using a top-level encryption key from a key management service, a namespace encryption key from a namespace encryption key database, and a respective block encryption keys protecting the blocks making up the object. Using these keys, the system can decrypt the block encryption keys using the namespace encryption key and decrypt the blocks using the block encryption keys, thereby providing access to the object.
    Type: Grant
    Filed: September 30, 2022
    Date of Patent: November 11, 2025
    Assignee: Dropbox, Inc.
    Inventors: Jonathan Lee, Rajat Goel, Stas Ilinskiy, Wesley Rodriguez, April King, Joseph Eichenhofer
  • TERTIARY-LEVEL ENCRYPTION KEY SCHEME
    Publication number: 20230336343
    Abstract: A system, method, and computer readable medium is disclosed for accessing an object that is encrypted within at least a tertiary-level encryption key scheme. This includes receiving a request to access blocks making up an object by content management system and using a top-level encryption key from a key management service, a namespace encryption key from a namespace encryption key database, and a respective block encryption keys protecting the blocks making up the object. Using these keys, the system can decrypt the block encryption keys using the namespace encryption key and decrypt the blocks using the block encryption keys, thereby providing access to the object.
    Type: Application
    Filed: September 30, 2022
    Publication date: October 19, 2023
    Inventors: Jonathan Lee, Rajat Goel, Stas Ilinskiy, Wesley Rodriguez, April King, Joseph Eichenhofer