A Low-Memory Implementation of a Hybrid Trusted Platform Module

In Industry 4.0, as data traffic increases, securing connected devices is critical. Remote attestation with TPMs provides a robust way to ensure device integrity and authenticity, while TPM provides secure storage for integrity measurements, enhancing system security. To address the risks posed by quantum computers to asymmetric cryptography, this work prioritizes optimizing memory requirements for TPMs that incorporate quantum-secure algorithms. The focus lies on a hybrid approach, combining traditional and post-quantum algorithms, with a detailed analysis of their impact on memory consumption.