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:
Oct. 08, 2024
Filed:
May. 25, 2022
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Yevgeny Yankilevich, Tirat Carmel, IL;
Vadim Makhervaks, Bellevue, WA (US);
Robert Groza, Jr., Redmond, WA (US);
Yi Yuan, Redmond, WA (US);
Oren Ish-Am, Haifa, IL;
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
A computing system uses AES-XTS encryption to encrypt data of a first part of first data stream using a tweak key, a data key, an initial tweak value, in a first encryption session, store the encrypted first part, then encrypts a second part of the first data stream in a second encryption session commenced after the termination of the first encryption session; and store the encrypted second part in the encrypted data store. The second part of the first data stream is encrypted using a modified tweak value computed based on the initial tweak value, the tweak key, and a block index of a last cipher block of the first part of the first data stream.