Generalized Initialization of the Duplex Construction

ePrint Report: Generalized Initialization of the Duplex Construction

Christoph Dobraunig, Bart Mennink

The duplex construction is already well analyzed with many papers proving its security in the random permutation model. However, so far, the first phase of the duplex, where the state is initialized with a secret key and an initialization vector ($\mathit{IV}$), is typically analyzed in a worst case manner. More detailed, it is always assumed that the adversary is allowed to choose the $\mathit{IV}$ on its will. In …

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