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:
Jul. 18, 2023
Filed:
Oct. 27, 2021
Applicant:
Google Llc, Mountain View, CA (US);
Inventor:
Adam Markowitz, Santa Cruz, CA (US);
Assignee:
Google LLC, Mountain View, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 9/00 (2022.01); H04L 9/08 (2006.01); H04L 9/06 (2006.01); H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
H04L 9/003 (2013.01); H04L 9/0618 (2013.01); H04L 9/0844 (2013.01); H04L 9/3242 (2013.01);
Abstract
A method for side-channel attack mitigation in streaming encryption includes reading an input stream into a decryption process, extracting an encryption envelope having a wrapped key, a cipher text, and a first message authentication code (MAC) from the input stream, generating a second MAC using the wrapped key of the encryption envelope, and performing decryption of the cipher text in constant time by determining whether the encryption envelope is authentic by comparing the first MAC extracted from the encryption envelope and the second MAC generated using the wrapped key.