Preliminary Security Analysis, Formalisation, and Verification of OpenTitan Secure Boot Code. - Bjarke Hilmer Møller; Jacob Gosch Søndergaard; Kristoffer Skagbæk Jensen; Magnus Winkel Pedersen; Tobias Worm Bøgedal; Anton Christensen; Danny Bøgsted Poulsen; Kim Guldstrand Larsen; René Rydhof Hansen; Thomas Rosted Jensen; Heino Juvoll Madsen; Henrik Uhrenfeldt (NordSec, 2021)