APPARATUS AND METHOD FOR GENERATING SECRET KEY, APPARATUS AND METHOD FOR GENERATING EVALUATION KEY

An apparatus and method for generating a secret key and an apparatus and method for generating an evaluation key are provided. The method of generating a secret key according to one embodiment includes generating a share of each of a user and a plurality of other users for a secret key of the user,...

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Bibliographische Detailangaben
Hauptverfasser:	CHEON, Junghee, JEONG, Jinhyuck, KIM, Eunkyung, YOON, Hyojin
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	An apparatus and method for generating a secret key and an apparatus and method for generating an evaluation key are provided. The method of generating a secret key according to one embodiment includes generating a share of each of a user and a plurality of other users for a secret key of the user, providing the share of each of the plurality of other users to a user terminal of each of the plurality of other users, receiving a share of the user for a secret key of each of the plurality of other users from the user terminal of each of the plurality of other users, and generating a new secret key of the user using the share of the user for the secret key of the user and the shares of the user for the secret key of each of the plurality of other users.