The Canadian Society of Information Theory (CSIT) annual paper award is to award the best conference paper that has been accepted by either a Biennial Symposium on Communications (BSC) or Canadian Workshop on Information Theory (CWIT).
In 2021, the award went to INUE's Florian Euchner and Christian Senger for their paper PERIDOT Codes: Replacing Identifiers, Sequence Numbers and Nonces with Permutations, which they presented at the 2021 Virtual Biennial Symposium on Communications (BSC 2021) in Saskatoon (SK), Canada. The paper shows how to replace identifiers and sequence numbers (which have a dual use as nonces) in low-power wide-area networks (LPWANs) by specially constructed integers permutations, the so-called code numbers. In practical LPWANs such as Sigfox, these code numbers can be chosen much shorter than classical identifiers and sequence numbers combined. However, they allow for a larger number of adressable devices and increased nonce reuse cycles.