Probabilistische Speichersicherheit unter Verwendung von Kryptografie

Details

Veröffentlichungs-Nr.

EP3745273

Aktenzeichen

EP20176079

Anmeldetag

22. Mai 2020

Veröffentlichung

14. August 2024

Erteilung

14. August 2024

Rechtsraum

EP

IPC

G06F12/14H04L9/06G06F12/0897H04L9/08// H04L9/40G06F21/60G06F21/64G06F12/1027

Abstract

A chip for securing storage of information includes a manager to access a pointer and a cipher engine to decrypt stored data. The pointer includes a first area and a second area. The first area includes an address indicating a storage location of the data and the second area includes a safety tag. The cipher engine decrypts the data output from the storage location based on a key and the safety tag in the second area of the pointer. These and other operations may be performed based on metadata that indicate probabilities that a correct safety tag was used to decrypt the data. In another embodiment, the manager may be replaced with an L1 cache.

Anmelder

Firma

NXP B.V.

Land

🇳🇱 Niederlande

Fachgebiete