Patent · US Active

Method for secure data reading and data handling system

US8583880B2 · kind B2 · utility

1Cited by

2References

16Claims

0Family size

Assignee

NXP B.V. · NL

Inventors

Mathias Wagner · Seevetal, DE
Ralf Malzahn · Seevetal, DE

Key dates

Filing date	Apr 29, 2009
Grant date	Nov 12, 2013
Priority date	—
Expiry date	Jun 25, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG06F2221/2123
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method for secure data reading and a data handling system is provided. The method protects the data reading from fault attacks by repeating read request in an interleaved manner, in particular the method comprises the steps of (M200) dispatching a first read request; (M400) dispatching a second read request; (M600) dispatching a further first read request; and (M1000-a) producing an anomaly signal if a first result produced by the memory in response to the first read request does not agree with a further first result produced by the memory in response to the further first read request.

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