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Paper 2013/290
Massive Group Message Authentication with Revocable Anonymity
Boaz Catane and 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.
Metadata
- Available format(s)
- Category
- Implementation
- Publication info
- Published elsewhere. Unknown where it was published
- Keywords
- Digital signaturesGroup signaturesRevocationEfficient implementations
- Contact author(s)
- boaz catane @ mail huji ac il
- History
- 2013-05-26: last of 2 revisions
- 2013-05-23: received
- See all versions
- Short URL
- https://ia.cr/2013/290
- License
-
CC BY