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Group Oblivious Message Retrieval
April 13, 2023, 9 p.m. |
IACR News www.iacr.org
ePrint Report: Group Oblivious Message Retrieval
Zeyu Liu, Eran Tromer, Yunhao Wang
Anonymous message delivery, as in private communication and privacy-preserving blockchain applications, ought to protect recipient metadata:
a message should not be inadvertently linkable to its destination.
But in this case, how can messages be delivered to each recipient, without every recipient scanning all the messages?
Recent work constructed Oblivious Message Retrieval (OMR) protocols that outsource this job to untrusted servers in a privacy-preserving manner.
We consider the case …
anonymous applications blockchain case chat communication delivery eprint report job may message messages messaging metadata oblivious privacy private protect protocols report scanning servers untrusted work
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