Welcome to the resource topic for 2013/290
Title:
Massive Group Message Authentication with Revocable Anonymity
Authors: Boaz Catane, Amir Herzberg
Abstract:We present and implement schemes for authenticating messages from a group of users to a recipient, with revocable anonymity and massive (very high) message rate. Our implementations present a trade-off between the efficiency and the security required: from online group managers that participate in every message sent to offline managers, from assuming a trusted group manager and a trusted recipient to securing against both entities. All implementations have the {\em traceablity} feature, allowing to distributively and efficiently trace all messages that originated from a specific group member without violating anonymity of other members. In addition, our schemes are efficient and practical.
ePrint: https://eprint.iacr.org/2013/290
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