SINGLE-USE AUTHENTICATION METHODS FOR ACCESSING ENCRYPTED DATA

SINGLE-USE AUTHENTICATION METHODS FOR ACCESSING ENCRYPTED DATA

Single-use authentication methods for accessing encrypted data stored on a protected volume of a computer are described, wherein access to the encrypted data involves decrypting a key protector stored on the computer that holds a volume-specific cryptographic key needed to decrypt the protected volu...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DUSSART, Nils, BASMOV, Innokentiy, ILAC, Cristian M, VOBA, Son, THOM, Stefan, URECHE, Octavian T, JEFFRIES, Charles G, BHARADWAJ, Vijay G
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
PHYSICS
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:Single-use authentication methods for accessing encrypted data stored on a protected volume of a computer are described, wherein access to the encrypted data involves decrypting a key protector stored on the computer that holds a volume-specific cryptographic key needed to decrypt the protected volume. Such single-use authentication methods rely on the provision of a key protector that can only be used once and/or that requires a new access credential for each use. In certain embodiments, a challenge-response process is also used as part of the authentication method to tie the issuance of a key protector and/or access credential to particular pieces of information that can uniquely identify a user.