Cipher method and system for multicast service

The invention provides a cipher method and system for multicast service. A group includes a plurality of user equipments, each having a respective key, and every two keys are orthogonal with each other. A content provider provides a message to the user equipments in the group. A BM-SC server has a k...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	TSAO, SHIAO-LI, HSU, YUING, LIN, CHIAIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADVERTISING CODING OR CIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHERPURPOSES INVOLVING THE NEED FOR SECRECY CRYPTOGRAPHY DISPLAY EDUCATION ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY PHYSICS SEALS TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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