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:
Jun. 16, 2026
Filed:
Dec. 16, 2022
Amazon Technologies, Inc., Seattle, WA (US);
Sachin P. Joglekar, Bothell, WA (US);
Kadirvel Chockalingam Vanniarajan, Padur, IN;
Temesghen Kahsai Azene, Union City, CA (US);
Firas Azrai, Austin, TX (US);
Charles Ward, Sammamish, WA (US);
Vijaylakshmi Sadasivam, Chennai, IN;
David M. Wheeler, Mesa, AZ (US);
Amazon Technologies, Inc., Seattle, WA (US);
Abstract
Systems, devices, and methods are provided for cryptographic control access and revocation of data. When data is to be shared between a data producer and a data consumer, a key vault is used to store a consumer-producer key pair that is used to generate a portion of key material that is used to derive an envelope key. Data producer is able to generate the envelope key for encryption using the consumer-producer public key, whereas the data consumer relies on the key vault to provide the portion of key material to produce the envelope key for decryption. Access to data can be revoked through the destruction or of the consumer-producer private key stored in the key vault.