Kin-Ching Chan

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Multicasting is an efficient way to deliver data to a large group of users in applications such as Internet stock quotes, audio and music delivery, file and video distribut ion, etc. Many of these applications require the securi ty feature of data confidentiality, which is not readily offered by the “open” nature of multicast. In order to offer such(More)
In order to offer backward and forward secrecy for multicast applications (i.e., a new member cannot decrypt the multicast data sent before its joining and a former member cannot decrypt the data sent after its leaving), the data encryption key has to be changed whenever a user joins or leaves the system. Such a change has to be made known to all the(More)
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