Global Patent Index - EP 2520043 A1

EP 2520043 A1 20121107 - METHOD AND DEVICE FOR PROVIDING AT LEAST ONE SECURE CRYPTOGRAPHIC KEY

Title (en)

METHOD AND DEVICE FOR PROVIDING AT LEAST ONE SECURE CRYPTOGRAPHIC KEY

Title (de)

VERFAHREN UND VORRICHTUNG ZUM BEREITSTELLEN MINDESTENS EINES SICHEREN KRYPTOGRAPHISCHEN SCHLÜSSELS

Title (fr)

PROCÉDÉ ET DISPOSITIF DESTINÉS À FOURNIR AU MOINS UNE CLÉ CRYPTOGRAPHIQUE SÛRE

Publication

EP 2520043 A1 20121107 (DE)

Application

EP 11704055 A 20110214

Priority

  • DE 102010011657 A 20100317
  • EP 2011052097 W 20110214

Abstract (en)

[origin: WO2011113651A1] The invention relates to a device (1) for providing at least one secure cryptographic key for performing a cryptographic security function (SF) using a control device (2) which requires a cryptographic key therefor. A configured key (CK) provided for the security function (SF) is selected from a first configuration memory (7) and is tested using the read configured key (CK) whether a secure replacement key (SK) associated with the read configured key (CK) is memorised in a second configuration memory (8), said replacement key is provided for the control device (2) for performing the security function (SF) instead of the configured key (CK).

IPC 8 full level

H04L 9/08 (2006.01); G05B 19/042 (2006.01); G05B 19/418 (2006.01)

CPC (source: EP US)

G05B 19/0428 (2013.01 - EP US); H04L 9/0861 (2013.01 - EP); H04L 9/0891 (2013.01 - EP US); H04L 9/14 (2013.01 - EP); G05B 2219/36542 (2013.01 - EP US); H04L 9/08 (2013.01 - US); H04L 9/32 (2013.01 - US)

Citation (search report)

See references of WO 2011113651A1

Designated contracting state (EPC)

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

DOCDB simple family (publication)

DE 102010011657 A1 20110922; CN 102792629 A 20121121; EP 2520043 A1 20121107; KR 20130045260 A 20130503; US 2013010965 A1 20130110; US 8989386 B2 20150324; WO 2011113651 A1 20110922

DOCDB simple family (application)

DE 102010011657 A 20100317; CN 201180014207 A 20110214; EP 11704055 A 20110214; EP 2011052097 W 20110214; KR 20127027134 A 20110214; US 201113635523 A 20110214