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The introduction of public key cryptography (PKC) was a critical advance in IT security. In contrast to symmetric key cryptography, it enables confidential communication between entities in open networks, in particular the Internet, without prior contact. Beyond this PKC also enables protection techniques that have no analogue in traditional cryptography, most importantly digital signatures which for example support Internet security by authenticating software downloads and updates. Although PKC does not require the confidential exchange of secret keys, proper management of the private and...

Quantum computers will break today's most popular public-key cryptographic systems, including RSA, DSA, and ECDSA. This book introduces the reader to the next generation of cryptographic algorithms, the systems that resist quantum-computer attacks: in particular, post-quantum public-key encryption systems and post-quantum public-key signature systems.

Leading experts have joined forces for the first time to explain the state of the art in quantum computing, hash-based cryptography, code-based cryptography, lattice-based cryptography, and multivariate cryptography. Mathematical...

This book constitutes the refereed proceedings of the First European Conference on Ambient Intelligence, AmI 2007, held in Darmstadt, Germany, in November 2007. The 17 revised full papers presented together with five research reports were carefully reviewed and selected from 48 submissions. The papers are organized in topical sections. The book is rounded off by a section on case studies and lessons learned, presenting a high level selection of current research reports and papers.