Smart meters, built for the day quantum breaks RSA.
A hybrid post-quantum, AI-driven, blockchain-anchored energy metering framework that survives the harvest-now-decrypt-later threat model and still costs under fifty dollars per node.
At a glance
01Harvest now, decrypt later, today
The smart-meter problem is not just about today's adversaries. It is about tomorrow's. Every encrypted billing record, consumption pattern, grid-control message you transmit today using RSA or ECC can be archived by a patient adversary and decrypted in fifteen years when a cryptographically-relevant quantum computer exists. That is the harvest-now-decrypt-later threat, and it is already happening.
For energy infrastructure the implications are concrete. Consumption data exposes occupancy patterns. Grid telemetry exposes operational margins. Both are intelligence assets. RSA and ECC have to go before they are broken, not after.
02The architecture, top to bottom
Six layers, each accepting the constraints of the next:
- Sensing. Arduino Uno with an ACS712 Hall-effect current sensor. Sub-cent accuracy, five dollars in parts.
- Connectivity. ESP8266 Wi-Fi for backhaul, picked for the deployment cost rather than the prestige.
- Cryptography. CRYSTALS-Kyber-1024 for key encapsulation, CRYSTALS-Dilithium-III for signatures. Both are NIST PQC selections, both run acceptably on ESP-class silicon.
- Ledger. Permissioned blockchain for tamper-evident auditability without the energy cost of public PoW.
- Analytics. AI layer for anomaly detection and reinforcement-learning-driven resource allocation.
- Operations. Real-time dashboards over the analytics outputs.
03What the numbers actually look like
"Quantum-resistant does not have to mean cloud-grade. The whole stack fits in fifty dollars of components and answers in under 300 milliseconds."
Headline measurements from the experimental deployment: 95 to 98 percent measurement accuracy, sub-300 ms end-to-end latency, 1850 TPS through the permissioned chain, 97.8 percent F1 on anomaly detection, 23 percent energy reduction from the RL-based resource allocator. The cost-per-node target of under fifty dollars is what makes this deployable at residential scale, not just industrial.
04Why this matters for standards work
This is the application layer of the same standards stack I work on at IETF (PQ-EDHOC) and ISA99 (IEC 62443). Kyber and Dilithium are the cryptographic primitives PQ-EDHOC is wiring into LAKE-style key establishment. The paper shows what an end-to-end quantum-resilient IoT deployment looks like once those standards are in place.
FAQWhat people ask me about this paper
Q1Why permissioned blockchain instead of public?
Q2Can ESP8266 really run Dilithium-III?
Q3How does this compare to NIST PQC migration timeline?
Q4Is the AI layer doing anything novel?
Q5How does this connect to my IETF and ISA99 work?
CITEHow to cite this paper
@inproceedings{badami2025qriot,
author = {Shujaatali Badami and others},
title = {Quantum-Resilient IoT Energy Metering on Blockchain: A Secure Framework of Real-Time Monitoring with Artificial Intelligence-Driven Analytics},
booktitle = {Springer NGCCOM 2025},
year = {2025},
publisher = {Springer}
}S. Badami et al., "Quantum-Resilient IoT Energy Metering on Blockchain: A Secure Framework of Real-Time Monitoring with Artificial Intelligence-Driven Analytics," in Springer NGCCOM 2025, 2025.
Badami, S., et al. (2025). Quantum-Resilient IoT Energy Metering on Blockchain: A Secure Framework of Real-Time Monitoring with Artificial Intelligence-Driven Analytics. In Springer NGCCOM 2025.
TY - CONF AU - Badami, Shujaatali TI - Quantum-Resilient IoT Energy Metering on Blockchain: A Secure Framework of Real-Time Monitoring with Artificial Intelligence-Driven Analytics T2 - Springer NGCCOM 2025 PB - Springer PY - 2025 ER -