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1. WO2002103495 - A METHOD FOR SECURING AN ELECTRONIC DEVICE, A SECURITY SYSTEM AND AN ELECTRONIC DEVICE

Publication Number WO/2002/103495
Publication Date 27.12.2002
International Application No. PCT/FI2002/000517
International Filing Date 14.06.2002
Chapter 2 Demand Filed 13.01.2003
IPC
G06F 21/57 2013.1
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
21Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
50Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems
57Certifying or maintaining trusted computer platforms, e.g. secure boots or power-downs, version controls, system software checks, secure updates or assessing vulnerabilities
H04L 9/10 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Arrangements for secret or secure communication
10with particular housing, physical features or manual controls
CPC
G06F 21/575
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
21Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
50Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems
57Certifying or maintaining trusted computer platforms, e.g. secure boots or power-downs, version controls, system software checks, secure updates or assessing vulnerabilities
575Secure boot
G06F 8/54
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
8Arrangements for software engineering
40Transformation of program code
54Link editing before load time
Applicants
  • NOKIA CORPORATION [FI]/[FI] (AllExceptUS)
  • SORMUNEN, Toni [FI]/[FI] (UsOnly)
  • RÖNKKÄ, Risto [FI]/[FI] (UsOnly)
  • KIIVERI, Antti [FI]/[FI] (UsOnly)
Inventors
  • SORMUNEN, Toni
  • RÖNKKÄ, Risto
  • KIIVERI, Antti
Agents
  • TAMPEREEN PATENTTITOIMISTO OY
Priority Data
2001127815.06.2001FI
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) A METHOD FOR SECURING AN ELECTRONIC DEVICE, A SECURITY SYSTEM AND AN ELECTRONIC DEVICE
(FR) PROCEDE SERVANT A SECURISER UN DISPOSITIF ELECTRONIQUE, SYSTEME DE SECURITE ET DISPOSITIF ELECTRONIQUE
Abstract
(EN) The invention relates to a method for securing the trustworthiness of an electronic device (1). At least first (DID, S1, PK1) and second (S2, PK2) check-up data are stored in the electronic device (1). In the method, a boot program is started (501), in which boot program at least first (P1) and second (P2) boot steps are taken. In the first boot step, the trustworthiness of said at least first check-up data (DID, S1, PK1) is examined, wherein if the check-up shows that said at least first check-up data (DID, S1, PK1) is trusted, said second check-up data (S2, PK2) related to at least the second boot step is examined to confirm the trustworthiness of the second boot step. If the check-up shows that at least one second check-up data (S2, PK2) related to the second boot step is trusted, said second boot step (P2) is taken after said first boot step (P1).
(FR) L'invention concerne un procédé servant à sécuriser un dispositif électronique (1). Ce dispositif électronique (1) mémorise au moins des premières (DID, S1, PK1) et deuxièmes (S2, PK2) données de vérification. Ce procédé consiste à démarrer un programme d'amorçage (501) comportant au moins une première (P1) et une deuxième (P2) étapes d'amorçage. La première étape d'amorçage consiste à examiner la fiabilité desdites premières données de vérification (DID, S1, PK1), puis, si la vérification démontre que lesdites premières données de vérification (DID, S1, PK1) sont fiables, à examiner lesdites deuxièmes données de vérification (S2, PK2) relatives à au moins la deuxième étape d'amorçage afin de confirmer la fiabilité de cette deuxième étape d'amorçage. Si la vérification démontre que les deuxièmes données de vérification (S2, PK2) relatives à la deuxième étape d'amorçage sont fiables, ladite deuxième étape d'amorçage (P2) suit la première étape d'amorçage (P1).
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