Light-HHB: A Lighter Version of HHB for Resource-Constrained IoT Devices. Signature

This paper offers a lighter version of the harder HB protocol (hHB) denoted Light-hHB. This proposal uses the same framework as hHB, that is a two stages protocol: the first one for the establishment of a session key between the reader and the tag and the second one similar to HB+ which was proposed in Crypto ’05 by Hopper and Blum. We also introduce in this paper a novel and lightweight key exchange protocol inspired by the BB84 protocol named the non-quantum key exchange protocol. With the use of a practical implementation of the latter protocol in the first stage of Light-hHB, the transmission cost is drastically reduced compared to the one of hHB, which is its main drawback. In the context of resource-constrained IoT devices, Light- hHB is significantly more practical than hHB and achieves the same security goals.