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:
Jan. 28, 2025
Filed:
Dec. 06, 2022
Applicant:
R3 Ltd., London, GB;
Inventors:
Assignee:
R3 LTD., London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01); G06F 21/54 (2013.01); G06F 21/60 (2013.01); G06F 21/62 (2013.01); H04L 9/08 (2006.01); H04L 9/40 (2022.01);
U.S. Cl.
CPC ...
H04L 9/3242 (2013.01); G06F 21/54 (2013.01); G06F 21/602 (2013.01); G06F 21/6218 (2013.01); H04L 9/0825 (2013.01); H04L 63/1441 (2013.01);
Abstract
A secure enclave is hosted by an untrusted host. To securely persist data on the untrusted host, the secure enclave generates or updates a persistent file system, wherein the persistent file system is a collection of logical files. The secure enclave segments the persistent file system into a plurality of sectors. The secure enclave provides a key specification to a key derivation enclave. The secure enclave obtains an encryption key dynamically generated based on the key specification. The secure enclave cryptographically protects each of the plurality of sectors using the key and causes the host to write a plurality of encrypted sectors to a disk as a single physical file.