Patent · US Active

Side channel attack protection

US11244078B2 · kind B2 · utility

0Cited by

6References

9Claims

0Family size

Assignee

NXP USA, Inc. · US

Inventors

Stefan Doll · Obermoschel, DE
Sandeep Jain · Milpitas, US
Vivek Sharma · Tokyo, JP
Dhruv Satsangi · Agra, IN
Arnavesh Varun Giri · Ranchi, IN
Ankur Krishna · Noida, IN
Nitin Moudgil · Banga, IN

Key dates

Filing date	Dec 7, 2018
Grant date	Feb 8, 2022
Priority date	—
Expiry date	Jan 19, 2039

Classification

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

Abstract

A system for securing a secret word during a read of the secret word from a read-only memory (ROM) is disclosed. The system includes a memory controller coupled to the ROM and a random number generator coupled to the memory controller. The random number generator is configured to generate a random number. The system further includes a number shuffler coupled to the random number generator and the memory controller. The number shuffler is configured to generate a bit read order based on the random number and the memory controller is configured to read bits of the secret word from the ROM according to the bit read order.

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