Publikationen

Autor	Schneider, Thomas; Treiber, Amos
Datum	2020
Art	Journal Article
Abstrakt	Privacy-preserving scalar product (PPSP) protocols are an important building block for secure computation tasks in various applications. Lu et al. (TPDS'13) introduced a PPSP protocol that does not rely on cryptographic assumptions and that is used in a wide range of publications to date. In this comment paper, we show that Lu et al.'s protocol is insecure and should not be used. We describe specific attacks against it and, using impossibility results of Impagliazzo and Rudich (STOC'89), show that it is inherently insecure and cannot be fixed without relying on at least some cryptographic assumptions.
ISSN	1045-9219
In	IEEE Transactions on Parallel and Distributed Systems, p.543-546
Publisher	IEEE
Url	https://tubiblio.ulb.tu-darmstadt.de/id/eprint/116390

A Comment on Privacy-Preserving Scalar Product Protocols as proposed in "SPOC"