Duplex-based authenticated encryption modes with a sufficiently large key length are
proven to be secure up to the birthday bound 2 c 2, where c is the capacity. However this …

The sponge duplex is a popular mode of operation for constructing authenticated encryption
schemes. In fact, one can assess the popularity of this mode from the fact that around $25 …

Hash combiners are a practical way to make cryptographic hash functions more tolerant to
future attacks and compatible with existing infrastructure. A combiner combines two or more …

Let T n be the set of all mappings T:{1, 2,…, n}→{1, 2,…, n}. The corresponding graph of T is
a union of disjoint connected unicyclic components. We assume that each T∈ T n is chosen …

Encrypting too much data using the same key is a bad practice from a security perspective.
Hence, it is customary to perform re-keying after a given amount of data is transmitted. While …

Let $\mathcal {T} _n $ be the set of all mappings $ T:\{1, 2,\ldots, n\}\to\{1, 2,\ldots, n\} $. The
corresponding graph of $ T $ is a union of disjoint connected unicyclic components. We …