Sybil-Resilient Identifier and Proof of Uniqueness

[VikingTechGuy]

@chportma I wrote a new proposal related to the other 2 proposals i submitted this morning for optimizing the node.

Proposal for Implementing Sybil-Resilient Identifier and Proof of Uniqueness in Concordium Node

Introduction This proposal addresses the challenge of Sybil attacks by introducing a practical solution for ensuring the uniqueness of identity (ID) within the Concordium Node without altering the existing ID credentials scheme. By leveraging Zero-Knowledge Proofs (ZKPs) and context-dependent identifiers generated using the Concordium node, we can maintain privacy, security, and regulatory compliance while ensuring robust Sybil resistance. This proposal also addresses handling legacy users, cry…