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.

Date of Patent:
Apr. 25, 2023

Filed:

Nov. 15, 2019
Applicant:

The Charles Stark Draper Laboratory, Inc., Cambridge, MA (US);

Inventors:

Nhut Tran, Natick, MA (US);

J. Ryan Prince, Stow, MA (US);

Martin Klingensmith, Arlington, MA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/14 (2006.01); G06F 21/60 (2013.01); H04L 9/08 (2006.01); G06F 21/78 (2013.01);
U.S. Cl.
CPC ...
G06F 12/1408 (2013.01); G06F 21/602 (2013.01); G06F 21/78 (2013.01); H04L 9/0894 (2013.01); H04L 2209/12 (2013.01);
Abstract

An embodiment is directed to a hardware circuit for encrypting and/or decrypting data transmitted between a processor and a memory. The circuit is situated between the processor and memory. The circuit includes a first interface communicatively coupled to the processor via a set of buses. The circuit also includes a second interface communicatively coupled to the memory. The circuit further includes hardware logic capable of executing an encryption operation on data transmitted between the processor and memory, without adding latency to data transmission speed between the processor and the memory. The hardware logic is configured to encrypt data received at the first interface from the processor, and transmit the encrypted data to the memory via the second interface. The hardware logic is also configured to decrypt data received at the second interface from the memory, and transmit the decrypted data to the processor via the first interface.


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