Exploiting the acousto-optic effect for developing secure digital identifiers D. Martín-Sánchez and P. Brox Conference · Moscone South, Room 302 (Level 3), San Francisco, Estados Unidos, 28 Enero 2025 resumen
Cybersecurity is rooted in hardware to achieve high security. Physical unclonable functions (PUFs) are cryptographic primitives that implement one-way functions to generate cryptographic keys on-demand. Current approaches implement PUFs using microelectronic circuits that exploit the random manufacturing variabilities. Other alternatives exploit optical principles to offer higher security. However, their reliability is compromised by environmental effects and integrated systems are still to be realized. Here a novel approach is proposed to enhance reliability and potentially enable integration in digital security systems. The proposed method uses the acousto-optical effect to interrogate optical PUFs, avoiding precision alignment of moving parts and bulky equipment. This way of interrogating the PUF can also be miniaturized in a photonic integrated circuit. The experimental results demonstrate the feasibility of this approach and the potential for generating a large number of truly random cryptographic keys.
Exploiting randomly distributed pores in photonic structures for security applications to create hardware-based digital identity D. Martín-Sánchez and P. Brox Conference · NanoSpain Conf 2024, Tarragona, España resumen
In the 2024 edition, the conference will strength collaborations with the COST network Netpore in the field of porous semiconductors and oxides. The intersection of nanoSpain2024 and the thematic network COST will encourage collaborative dialogues and the initiation of potential partnerships between researchers and industry professionals. More info at https://www.nanospainconf.org/2024
