This book provides an introduction to secret sharing, a key technology for practical applications and higher-level cryptographic protocols.
This survey analyzes existing work, and systematically presents secret sharing protocols for various adversary models. It provides intuitive as well as formal descriptions of the different types of adversaries, including their computational powers and capabilities. In addition, it then offers guidance and support in selecting the appropriate type of protocol for a given application domain, present representative protocols, and provide useful references for further reading and research.
This book aims to support software developers and engineers in realizing highly secure cloud-based applications, and also provides an introduction to the field including some relevant technical background for interested students and computer scientists.

Autorentext

Stephan Krenn received his PhD in computer science from the University of Fribourg (Switzerland). After postdoc positions at IST Austria and IBM Research - Zurich, he joined AIT's cryptography group in 2015, where he is now a senior scientist. His main research interests are in the domain of privacy-enhancing technologies, anonymous authentication, malleable digital signatures, or similar. He is actively participating in cryptographic standardization initiatives, and chair of IFIP WG11.6 on Identity Management. Thomas Lorünser is a senior scientist and team leader in AIT's Center for Digital Safety & Security with a strong background in digitization, IT security and applied cryptography. He holds a degree from Technical University of Vienna and various professional certifications (CISSP, zPM, CDPSE, ..). Additionally, he teaches selected topics in Cloud Computing, Internet of Things and IT Security and also actively contributes to security and cryptography standards in the International Organization for Standardization (ISO, JTC1/SC27).

Inhalt
1 Introduction.- 2. Preliminaries.- 3. Adversary Model for Secret Sharing Schemes.- 4. Basic Secret Sharing.- 5. Beyond Threshold Access Structures.- 6. Robust Secret Sharing.- 7. Verifiable Secret Sharing.- 8. Proactive Secret Sharing.- 9. Advanced Topics.- 10. Conclusion.