Patent · US Active

Secure processor and a program for a secure processor

US7865733B2 · kind B2 · utility

72Cited by

10References

16Claims

0Family size

Assignee

FUJITSU SEMICONDUCTOR LIMITED · JP

Inventors

Seiji Goto · Kawasaki, JP
Jun Kamada · Kawasaki, JP
Taiji Tamiya · Kawasaki, JP

Key dates

Filing date	Mar 25, 2005
Grant date	Jan 4, 2011
Priority date	—
Expiry date	Aug 26, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG06F2212/682
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

The instruction code including an instruction code stored in the area where the encrypted instruction code is stored in a non-rewritable format is authenticated using a specific key which is specific to the core where the instruction code is executed or an authenticated key by a specific key to perform an encryption processing for the input and output data between the core and the outside.

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