Einzeltreffer — DigiBib

According to an embodiment, an information-processing device is coupled to an external device and a server. The information-processing device includes a device key storage configured to store a device key; and an MKB processor configured to generate a media key from the device key and a media key block. The information-processing device also includes a shared key generator configured to generate a shared key from the media key and secret information transmitted from the server. The shared key is shared by the information-processing device and the external device.

Titel:	INFORMATION PROCESSING DEVICE AND COMPUTER PROGRAM PRODUCT
Link:	View record in USPTO Patent Applications (Volltext)
Veröffentlichung:	2013
Medientyp:	Patent
Sonstiges:	Nachgewiesen in: USPTO Patent Applications Sprachen: English Document Number: 20130259227 Publication Date: October 3, 2013 Appl. No: 13/724735 Application Filed: December 21, 2012 Claim: 1. An information-processing device to be coupled to an external device and a server, the information-processing device comprising: a device key storage configured to store a device key; an MKB processor configured to generate a media key, the media key being generated from the device key and a media key block; and a shared key generator configured to generate a shared key, the shared key being generated from the media key and secret information transmitted from the server, the shared key being shared between the information-processing device and the external device. Claim: 2. The device according to claim 1 further comprising: a receiver configured to receive the media key block transmitted from the server, wherein the MKB processor generates the media key, the media key being generated from the device key and the media key block received from the server. Claim: 3. The device according to claim 2, wherein the receiver receives signature information of the media key block through the server, the signature information being transmitted from a key distribution device; and the MKB processor validates the media key block with the signature information, and generates the media key, the media key being generated from the validated media key block and the device key. Claim: 4. The device according to claim 1, wherein the media key block is generated by a key distribution device other than the server, wherein the information-processing device further comprises a receiver configured to receive the media key block transmitted from the key distribution device, and the MKB processor generates the media key, the media key being generated from the device key and the media key block received from the key distribution device. Claim: 5. The device according to claim 1 further comprising: a shared key storage configured to store a pre-shared key that is preliminarily shared between the information-processing device and the server; and a data generator configured to decrypt encrypted information with the pre-shared key stored in the shared key storage, thereby generating the secret information, the encrypted information being generated by encrypting data including the secret information with the pre-shared key, wherein the shared key generator generates a shared key, the shared key being generated from the generated secret information and the media key, the shared key being shared between the information-processing device and the external device. Claim: 6. The device according to claim 1 further comprising: a shared key storage configured to store a pre-shared key that is preliminarily shared between the information-processing device and the server; and a data generator configured to decrypt encrypted information with a decryption key, thereby generating the secret information, the encrypted information being generated by encrypting data including the secret information with an encryption key, the encryption key being calculated by the server in accordance with a predetermined method using the pre-shared key and the media key, the decryption key being calculated in accordance with a predetermined method using the pre-shared key stored in the shared key storage and the media key, wherein the shared key generator generates a shared key, the shared key being generated from the generated secret information and the media key, the shared key being shared between the information-processing device and the external device. Claim: 7. The device according to claim 1 further comprising: a data generator configured to generate encrypted information using the secret information; a transmitter configured to transmit the encrypted information to the external device; a validator configured to validate the secret information using information transmitted from the external device, the information from the external device being applied to the transmitted encrypted information, wherein the shared key generator generates the shared key, the shared key being generated from the secret information and the media key in a case where the secret information passes a validation. Claim: 8. The device according to claim 7, wherein the data generator generates the encrypted information, using the media key and the secret information. Claim: 9. A computer program product comprising a computer-readable medium containing a program executed by a computer coupled to an external device and a server, the program causing the computer to execute: generating a media key, the media key being generated from a device key and a media key block; and generating a shared key, the shared key being generated from secret information and the media key, the secret information being transmitted from the server, the shared key being shared by the computer and the external device. Current U.S. Class: 380/44 Current International Class: 04

Klicken Sie ein Format an und speichern Sie dann die Daten oder geben Sie eine Empfänger-Adresse ein und lassen Sie sich per Email zusenden.

BibTeX Citavi, JabRef, u.a.
(Literaturverwaltung)

PDF kein Volltext!
(Merkzettel, Notizen)

RIS Endnote, Citavi u.a.
(Literaturverwaltung)

MODS
(XML zur Weiterverarbeitung)

oder

Wählen Sie das für Sie passende Zitationsformat und kopieren Sie es dann in die Zwischenablage, lassen es sich per Mail zusenden oder speichern es als PDF-Datei.

Gewünschter Zitations-Stil:

oder

Bitte prüfen Sie, ob die Zitation formal korrekt ist, bevor Sie sie in einer Arbeit verwenden. Benutzen Sie gegebenenfalls den "Exportieren"-Dialog, wenn Sie ein Literaturverwaltungsprogramm verwenden und die Zitat-Angaben selbst formatieren wollen.

INFORMATION PROCESSING DEVICE AND COMPUTER PROGRAM PRODUCT