Dr. Arno Mittelbach is the Director of Development at AGT International. He received his PhD from Technische Universität Darmstadt in 2015. Prof. Dr. Marc Fischlin has been Professor for Cryptography and Complexity Theory at the Technische Universität Darmstadt since 2011. He previously held postdoctoral positions at research institutes such as the Fraunhofer Institute for Secure IT, University of California, San Diego, and ETH Zürich. His team's main research area is complexity-based cryptography.

Introduction.- Preliminaries: Cryptographic Foundations.- Part I: Foundations.- Computational Security.- Pseudorandomness and Computational Indistinguishability.- Collision Resistance.- Encryption Schemes.- Signature Schemes.- Non-cryptographic Hashing.- Part II: The Random Oracle Methodology.- The Random Oracle Model.- The Full Power of Random Oracles.- Random Oracle Schemes in Practice.- Limitations of Random Oracles.- The Random Oracle Controversy.- Part III: Hash Function Constructions.- Iterated Hash Functions.- Constructing Compression Functions.- Iterated Hash Functions in Practice.- Constructions of Keyed Hash Functions.- Constructing Random Oracles: Indifferentiability.- Constructing Random Oracles: UCEs.- Index.