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. 25, 2026
Filed:
Nov. 14, 2024
Snowflake Inc., Bozeman, MT (US);
Yi Fang, Kirkland, WA (US);
Chong Han, Bellevue, WA (US);
Haoyu Li, Fremont, CA (US);
Xinglian Liu, Redmond, WA (US);
Nithin Mahesh, Kirkland, WA (US);
Benedikt Schmidt, San Bruno, CA (US);
Ankur Sharma, Berlin, DE;
Lars Volker, Los Altos, CA (US);
Yizhi Zhu, Bellevue, WA (US);
Snowflake Inc., Bozeman, MT (US);
Abstract
The subject technology stores an original file master key identifier (FMKID) in metadata associated with an encrypted file, the encrypted file including data. The subject technology determines that the encrypted file is to be re-encrypted based at least on a period of time since the original FMKID was stored. The subject technology re-encrypts the data using a new encryption key associated with a new FMKID. The subject technology generates a mapping from the original FMKID to the new FMKID. The subject technology stores the mapping in a metadata database, the mapping being associated with a re-encrypted file, the re-encrypted file including the re-encrypted data.