Daniel Demmler, M.Sc.

I am a Ph.D. student and member of the Engineering Cryptographic Protocols (ENCRYPTO) group at the Center for Research in Security and Privacy (CRISP).

My research focuses on the design, implementation and evaluation of secure multi-party computation and private information retrieval protocols, as well as privacy-preserving applications and their practical realization.

In case you want to contact me securely, send me an encrypted e-mail using my undefinedPGP public key. Its fingerprint: 91DC D028 AA37 E1F9 4D06 1BD3 8740 013C 6881 7144.


S4|14 5.3.10
Mornewegstraße 32
64293 Darmstadt

+49 6151 16-27301



RAID-PIR: Practical multi-server PIR

Author Daniel Demmler, Amir Herzberg, Thomas Schneider
Date November 2014
Kind Inproceedings
Book title6th ACM Cloud Computing Security Workshop (ACM CCSW'14)
Research Areas Engineering Cryptographic Protocols, CASED, CROSSING, Secure Protocols, Secure Data, Engineering, E4, CYSEC
Abstract Private Information Retrieval (PIR) allows to privately request a block of data from a database such that no information about the queried block is revealed to the database owner. With the rapid rise of cloud computing, data is often shared across multiple servers, making multi-server PIR a promising privacy-enhancing technology. In this paper, we introduce RAID-PIR, an efficient and simple multi-server PIR scheme, which has similar approach to RAID (Redundant Arrays of Inexpensive Disks) systems. Each server stores only a part of the database, its computational complexity depends only on this part, and multiple blocks can be queried efficiently in parallel. RAID-PIR improves efficiency over known PIR protocols, using only very efficient cryptographic primitives (pseudo-random generator). We demonstrate that RAID-PIR is practical and well-suited for cloud deployment as it reduces the communication as well as the computational workload per server.
Full paper (pdf)
[Export this entry to BibTeX]

Important Copyright Notice:

The documents contained in these directories are included by the contributing authors as a means to ensure timely dissemination of scholarly and technical work on a non-commercial basis. Copyright and all rights therein are maintained by the authors or by other copyright holders, notwithstanding that they have offered their works here electronically. It is understood that all persons copying this information will adhere to the terms and constraints invoked by each author's copyright. These works may not be reposted without the explicit permission of the copyright holder.
A A A | Drucken Print | Impressum Impressum | Sitemap Sitemap | Suche Search | Kontakt Contact | Webseitenanalyse: Mehr Informationen
zum Seitenanfangzum Seitenanfang