Trusted device

• US 20040243801A1
• Filed: 01/07/2004
• Published: 12/02/2004
• Est. Priority Date: 08/18/2000
• Status: Abandoned Application

• Current Assignee: Clavin Lap Kei Lee, Liqun Chen
• Original Assignee: Clavin Lap Kei Lee, Liqun Chen
• Inventors: Lee, Clavin Lap Kei, Chen, Liqun
• Application Number:
  US10/344,062
• Publication Number:
  US 20040243801A1
• Time in Patent Office: Days
• US Class Current: 713/160
• CPC Class Codes: G06F 21/34 involving the use of external additional devices, e.g. dongles or smart cards
• CPC Class Codes: G06F 21/445 by mutual authentication, e.g. between devices or programs
• CPC Class Codes: G06F 21/57 Certifying or maintaining trusted computer platforms, e.g. secure boots or power-downs, version controls, system software checks, secure updates or assessing vulnerabilities
• CPC Class Codes: G06F 21/575 Secure boot
• CPC Class Codes: G06F 2221/2103 Challenge-response
• CPC Class Codes: H04L 2209/80 Wireless network architectures or network communication protocols for wireless network security H04W12/00
• CPC Class Codes: H04L 63/0869 for achieving mutual authentication cryptographic mechanisms or cryptographic arrangements for mutual authentication H04L9/3273
• CPC Class Codes: H04L 9/3236 using cryptographic hash functions
• CPC Class Codes: H04L 9/3247 involving digital signatures
• CPC Class Codes: H04L 9/3263 involving certificates, e.g. public key certificate [PKC] or attribute certificate [AC]; Public key infrastructure [PKI] arrangements network architectures or network communication protocols for supporting authentication of entities using certificates in a packet data network H04L63/0823
• CPC Class Codes: H04L 9/3273 for mutual authentication network architectures or network communication protocols for achieving mutual authentication in a packet data network H04L63/0869
• CPC Class Codes: H04W 12/069 using certificates or pre-shared keys

Abstract

A portable handheld computing apparatus comprising acquiring means for acquiring an first integrity metric of a first computer apparatus for determining if the first computer apparatus is a trusted entity, the acquiring means being responsive to input means for initiating the acquisition; and presentation means for presenting to a user an indication that the first computer apparatus is a trusted device.

Claims

1. A portable hand held computing apparatus comprising acquiring means for acquiring an first integrity metric of a first computer apparatus for determining if the first computer apparatus is a trusted entity, the acquiring means being responsive to input means for initiating the acquisition;

and presentation means for presenting to a user an indication that the first computer apparatus is a trusted device.

2. A portable handheld computing apparatus according to claim 1, further comprising a trusted device being arranged to acquire an second integrity metric for the portable handheld computing apparatus to allow determination as to whether the portable handheld computing apparatus is a trusted entity;

and communication means for communicating the second integrity metric to the first computer apparatus to allow mutual determination as to the trusted state of the portable handheld computer apparatus and first computer apparatus.

3. A portable handheld computing apparatus according to claim 1, further comprising cryptographic means arranged to provide authentication data to the first computer apparatus.

4. A portable handheld computing apparatus according to any preceding claim, wherein the computing apparatus is a personal digitial assitant.

5. A portable handheld computing apparatus according to any of claims 1 to 4, wherein the computing apparatus is a radiotelephone.

6. A portable handheld computing apparatus according to any of claims 1 to 4, wherein the computing apparatus is a smart card.

7. A portable handheld computing apparatus according to any of claims 1 to 4, wherein the computing apparatus is a biometrics reader.