Patent · US Active

Apparatus and method for preventing cloning of code

US9740837B2 · kind B2 · utility

2Cited by

0References

16Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Witold Gora · Neubiberg, DE
Andreas Geiler · Munich, DE
Gerd Dirscherl · Munich, DE
Albrecht Mayer · Deisenhofen, DE

Key dates

Filing date	Aug 6, 2014
Grant date	Aug 22, 2017
Priority date	—
Expiry date	Aug 6, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG06F21/101
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

An apparatus and corresponding method for preventing cloning of code. The apparatus includes a memory, an authentication module, and a device. The memory is configured to store the code, which includes unencrypted code and a fragment of encrypted code. The authentication module is configured to receive and decrypt the fragment of encrypted code from the memory into a fragment of decrypted code, and to store the fragment of decrypted code in an authentication module buffer. The device configured to execute the unencrypted code from the memory and to execute the fragment of decrypted code from the authentication module buffer, wherein the fragment of encrypted code is personalized to the device.

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