Abstract The TLS Internet Standard features a mixed bag of cryptographic algorithms and
constructions, letting clients and servers negotiate their use for each run of the handshake …

This book is about the cryptographic hash function BLAKE, one of the five final contenders in
the SHA3 competition, out of 64 initial submissions. The SHA3 competition was a public …

TLS is by far the most important protocol on the Internet for negotiating secure session keys
and providing authentication. Only very recently, the standard ciphersuites of TLS have been …

Background and Objectives: Cryptographic hash functions are the linchpins of mobile
services, blockchains, and many other technologies. Designing cryptographic hash …

In this work, we evaluate the security of Merkle-Damgård (MD) hash functions and their
combiners (XOR and concatenation combiners) in quantum settings. Two main quantum …

Abstract Transport Layer Security (TLS) is the most important cryptographic protocol in use
today. However, finding a cryptographic security proof for the complete, unaltered protocol …

Biometric data is user‐identifiable and therefore methods to use biometrics for
authentication have been widely researched. Biometric cryptosystems allow for a user to …

A combiner for collision-resistant hash functions takes two functions as input and
implements a hash function with the guarantee that it is collision-resistant if one of the …

A combiner is a construction formed out of two hash functions that is secure if one of the
underlying functions is. Conventional combiners are known not to support short outputs: if …