Patent · US Active

Data loss prevention with key usage limit enforcement

US9882720B1 · kind B1 · utility

9Cited by

6References

20Claims

0Family size

Assignee

AMAZON TECHNOLOGIES, INC. · US

Inventors

Marcel Andrew Levy · Seattle, US
Darren Ernest Canavor · Redmond, US
Zachary Ganwise Fewtrell · Redmond, US
Andrew Alphus Kimbrough · Seattle, US
Jonathan Kozolchyk · Seattle, US
Darin Keith McAdams · Seattle, US
Pradeep Ramarao · Kirkland, US
Gregory Branchek Roth · Seattle, US

Key dates

Filing date	Jun 27, 2014
Grant date	Jan 30, 2018
Priority date	—
Expiry date	Nov 15, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2209/72
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

In a distributed system, a computer system responsible, at least in part, for complying with a cryptographic key usage limit for a cryptographic key, obtains results of cryptographic operations generated based at least in part on the cryptographic key and transmits the obtained results over a network. The computer system digitally signs the results and provides the results with digital signatures of the results. Another device intercepts the results and allows the results to proceed to their destination contingent on successful validation of the digital signature.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.