The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 15, 2023
Filed:
Jan. 12, 2018
Google Llc, Mountain View, CA (US);
Kevin Yeo, Mountain View, CA (US);
Sarvar Patel, Montville, NJ (US);
Giuseppe Persiano, New York, NY (US);
Google LLC, Mountain View, CA (US);
Abstract
A method executing an instruction () to execute a query (q) for a data block () and determining whether the data block is stored in a block stash (). When the data block is stored in the block stash during a download phase, the method includes removing the data block from the block stash, sending a fake query () to a distributed system () to retrieve a random data block stored in memory () of a distributed system (), and discarding the random data block. When a current version of the data block is stored in the block stash during an overwrite phase, the method includes sending a fake query to the distributed system to retrieve another random data block stored in the memory of the distributed system, decrypting and re-encrypting the random data block with fresh randomness, and re-uploading the re-encrypted random data block onto the distributed system.