Original title: PQMDSBS: Post-quantum multivariate digital signature-based blockchain security scheme for mobile edge IoT applications
R. Thenmozhi Rajappa, P. Sakthivel Periyasamy, K. Kulothungan Kanagasabai · September 2026
Everyday smart devices, known as the Internet of Things, must send data safely through nearby edge computers to the cloud. However, current security methods are often costly and vulnerable to powerful future quantum computers. Researchers created a new defense called PQMDSBS to solve this. It relies on multivariate digital signatures, which are math-based security stamps designed to resist quantum attacks. The system combines many digital signatures from different devices into just one verifiable signature. It then records the information on a blockchain, a shared and secure digital ledger. The researchers found that this method resists quantum threats better than older benchmarked approaches while boosting overall efficiency. It reliably protects data integrity and authenticity across mobile edge networks.
Imagine you are collecting signed permission forms from a group of friends for a trip. Normally each friend gives you a separate form, and you have to keep track of all of them. Now suppose you can combine all those forms into one single form that proves everyone agreed, and the combining method is so secure that even a super-powerful computer cannot break it. In this paper, the multiple digital signatures from IoT devices are combined into one aggregate signature, and the blockchain acts like a public notebook that stores the combined signature safely.
IoT devices at the edge are vulnerable to quantum computers that can break current cryptography. This scheme combines many digital signatures into one, saving bandwidth and processing time while resisting quantum attacks. It makes secure IoT communication more practical and cost-effective, especially for mobile edge applications.
The abstract only reports simulation results using NS3 and blockchain frameworks, not real-world deployment. It does not specify which quantum attacks were considered or compare against all existing post-quantum schemes. Key management and scalability in large-scale IoT networks are not addressed.
Ask anything about this paper. Answers come from its abstract, and say so when the abstract doesn't cover your question.
PQMDSBS: Post-quantum multivariate digital signature-based blockchain security scheme for mobile edge IoT applications — R. Thenmozhi Rajappa, P. Sakthivel Periyasamy, K. Kulothungan Kanagasabai — Peer-to-Peer Networking and Applications — doi:10.1007/s12083-026-02218-6
Abstract licence: CC BY
Explanation generated by Synthesis from the abstract — it is not the original paper.