… If a hash function has to be useful for cryptographic applications, it has to satisfy some
additional conditions. Informally, one has to impose that the hash function is one-way (hard to in…

… However if it satisfies some additional requirements (as detailed further), then it can be
used for cryptographic applications and then known as Cryptographic Hash functions. … Block …

… In this thesis cryptographic hash functions will be studied … Chapter 2 contains an overview
of cryptographic hash functions. … of hash functions, and an extensive taxonomy of attacks on …

… Security of hash functions has been considered in many papers, but it is still not completely
… for a cryptographic hash function to be “secure”. The notion of a secure hash function is …

… Our example above could not be considered a cryptographic hash function because it would
be trivial to construct two inputs to this hash function that would create the same output, for …

… cryptographic hash functions security and design. We first discuss the various hash functions
… of how (and why) hash functions evolved over the years giving raise to the current diverse …

… of a random function. The main focus of this work is on collision resistant hash functions (CRH)…
which the function has the same output.However, we will also consider universal one-way …

… When the hash function is constructed from one of Pizer’s … Constructing our hash functions
from optimal expander graphs … these hash functions, and we implement our hash function …

… For a cryptographic hash function to be of any use in cryptography, it has to satisfy certain
conditions. It is difficult to state all these conditions, however, since hash functions are used in …

… theoretical introduction to the cryptographic hash function theory and a statistical experimental
analysis of selected hash functions. The definition of hash functions, differences between …