Suwichai Phunsa

You are already at the latest version Smart-city platforms connect Internet of Things (IoT) devices across transport, energy, water, healthcare and e-government services, so every gateway is an entry point and every log shared evidence. This paper evaluates a four-layer architecture: edge intrusion detection trained across districts by federated learning, digests anchored on a permissioned ledger, and a cloud orchestrator that correlates and audits.

You are already at the latest version Auditing a firewall as a black box means learning, from accept/deny answers alone, whether a device implements the intended policy. A companion paper showed this is inherently expensive classically: a hidden rule in a header space of size N = 2^104 forces N − 1 queries, while structured tree-rule and disjoint listed-rule policies are learned with Θ(m log W) queries (m rules, field width W). We ask what changes when the auditor is quantum.

You are already at the latest version Published assessments of Bitcoin’s exposure to a cryptographically relevant quantum computer convert resource estimates into risk figures by substituting a point estimate of the key-derivation time into an exponential tail. We show that this procedure is systematically optimistic.