METHOD AND APPARATUS FOR CERTIFYING AN APPLICATION-SPECIFIC KEY AND FOR REQUESTING SUCH A CERTIFICATION

The invention relates to a method for certifying an application-specific cryptographic key in a certificate exchange service (30), comprising: receiving (130) a cryptographic attestation certificate (22) for an application-specific public key from an application (20) in an apparatus (10); checking (...

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Bibliographische Detailangaben
Hauptverfasser:	BURGER-SCHEIDLIN, Christoph, HELBIG, Kai, EBKE, Johannes
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	The invention relates to a method for certifying an application-specific cryptographic key in a certificate exchange service (30), comprising: receiving (130) a cryptographic attestation certificate (22) for an application-specific public key from an application (20) in an apparatus (10); checking (34; 136) the validity of the attestation certificate (22); and, if the attestation certificate (22) has been recognized as valid, comparing (34; 138) at least some information that has been extracted from the attestation certificate (22) with predefined reference information, and if the comparison reveals that a new certificate should be created, forming (36; 140) a new application-specific certificate (24) that comprises at least the application-specific public key extracted from the attestation certificate (22) and at least some of the information from the attestation certificate; transmitting (150) the new application-specific certificate (24) to the application (20), and to a method for requesting such certification.