(19)
(11) EP 2 533 457 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
11.12.2019 Bulletin 2019/50

(45) Mention of the grant of the patent:
06.11.2019 Bulletin 2019/45

(21) Application number: 12166821.4

(22) Date of filing: 04.05.2012
(51) International Patent Classification (IPC): 
H04L 9/30(2006.01)
H04L 9/00(2006.01)
 H04L 9/32(2006.01)

(54)

Secure implicit certificate chaining

Implizit zertifizierte öffentliche Schlüssel

Clés publiques certifiées implicitement

(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30) Priority: 10.06.2011 US 201161495788 P

(43) Date of publication of application:
12.12.2012 Bulletin 2012/50

(60) Divisional application:
19207028.2

(73) Proprietor: BlackBerry Limited
Waterloo, Ontario N2K 0A7 (CA)

(72) Inventors:
  • Kravitz, David William
    Fairfax, VA Virginia 22031 (US)
  • Zaverucha, Gregory Marc
    Mississauga, Ontario L4W 0B5 (CA)
  • Brown, Daniel Richard L
    Mississauga, Ontario L4W 0B5 (CA)

(74) Representative: Gill Jennings & Every LLP 
The Broadgate Tower 20 Primrose Street
London EC2A 2ES
London EC2A 2ES (GB)


(56) References cited: : 
WO-A1-2010/129694
   
  • Billy Bob Brumley: "Implementing Cryptography for Packet Level Authentication", Security and Management, SAM 2008, 17 July 2008 (2008-07-17), pages 475-480, XP055041919, Retrieved from the Internet: URL:http://www.tcs.hut.fi/Publications/bbr umley/pla_implicitcerts_2008.pdf [retrieved on 2012-10-23]
   
Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).