Massive Group Message Authentication with Revocable Anonymity

Boaz Catane; Amir Herzberg

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): PDF
Category: Implementation
Publication info: Published elsewhere. Unknown where it was published
Keywords: Digital signatures Group signatures Revocation Efficient 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

BibTeX

@misc{cryptoeprint:2013/290,
      author = {Boaz Catane and Amir Herzberg},
      title = {Massive Group Message Authentication with Revocable Anonymity},
      howpublished = {Cryptology {ePrint} Archive, Paper 2013/290},
      year = {2013},
      url = {https://eprint.iacr.org/2013/290}
}