A7

Flashnet Anonymous Broadcast

Routing & Transport Research

Description

A threshold-based anonymous broadcast protocol that uses secret sharing across servers and client-side TEEs to achieve ultra-low latency for mempools and block building.

Relationships

Target	Type	Note
P1	benefits	Parallel secret sharing and single-hop reconstruction for minimal delay.
P3	benefits	Threshold non-collusion model severing the sender-to-batch link.
P4	benefits	TEE-enforced liveness prevents client jamming without expensive ZKPs.
P2	hurts	Requires sending multiple secret shares per message, increasing data load.
P7	hurts	Requires managing a set of threshold-honest servers and TEE clients.
A2	complements	Flashnet provides a threshold-based evolution of the OHTTP relay model.
A10	enables	Flashnet provides the anonymous communication layer for decentralized builders.

Open questions

Scalability of synchronous rounds with large participant sets.
Optimal server threshold for decentralized block building pipelines.

References

Network Anonymized Mempools (Flashbots)

Relationships

Dir	Target	Type	Note
→	P1 Latency Bound	benefits	Parallel secret sharing and single-hop reconstruction for minimal delay.
→	P3 Identity Unlinkability	benefits	Threshold non-collusion model severing the sender-to-batch link.
→	P4 Sybil Resistance	benefits	TEE-enforced liveness prevents client jamming without expensive ZKPs.
→	P2 Bandwidth Overhead	hurts	Requires sending multiple secret shares per message, increasing data load.
→	P7 Implementation Complexity	hurts	Requires managing a set of threshold-honest servers and TEE clients.
→	A2 OHTTP-Style Two-Hop Shuffles	complements	Flashnet provides a threshold-based evolution of the OHTTP relay model.
←	A9 ZIPNet Anonymous Broadcast	evolves	Flashnet iterates on ZIPNet to improve liveness under server failure.
→	A10 TEE-based BuilderNet	enables	Flashnet provides the anonymous communication layer for decentralized builders.