Patent · US Active

Updating software on a secure element

US9979703B2 · kind B2 · utility

5Cited by

6References

5Claims

0Family size

Assignee

NXP B.V. · NL

Inventors

Dimitri Warnez · Hamburg, DE
Thierry Gouraud · Leuven, BE
Rafael Jan Josef Meeusen · Leuven, BE
Andreas Lessiak · Graz, AT
Frank Siedel · Seevetal, DE
Ernst Haselsteiner · Graz, AT
Bruce Murray · Winchester, US

Key dates

Filing date	Dec 12, 2014
Grant date	May 22, 2018
Priority date	—
Expiry date	Dec 12, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH04W8/205
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

There is disclosed a method of providing a software update to a secure element comprised in a host device, comprising converting the software update into a sequence of ciphertext blocks using a chained encryption scheme, and transmitting said sequence of ciphertext blocks to the host device. Furthermore, there is disclosed a method of installing a software update on a secure element comprised in a host device, comprising receiving, by the host device, a sequence of ciphertext blocks generated by a method of providing a software update of the kind set forth, converting said sequence of ciphertext blocks into the software update, and installing the software update on the secure element. Furthermore, corresponding computer program products and a corresponding host device are disclosed.

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