@inproceedings{adb1fbb88f174836b98adbe9f7d75133,
title = "Toward practical homomorphic evaluation of block ciphers using prince",
abstract = "We present the homomorphic evaluation of the Prince block cipher. Our leveled implementation is based on a generalization of NTRU. We are motivated by the drastic bandwidth savings that may be achieved by scheme conversion. To unlock this advantage we turn to lightweight ciphers such as Prince. These ciphers were designed from scratch to yield fast and compact implementations on resource-constrained embedded platforms.We show that some of these ciphers have the potential to enable near practical homomorphic evaluation of block ciphers. Indeed, our analysis shows that Prince can be implemented using only a 24 level deep circuit. Using an NTRU based implementation we achieve an evaluation time of 3.3 s per Prince block – one and two orders of magnitude improvement over homomorphic AES implementations achieved using NTRU, and BGV-style homomorphic encryption libraries, respectively.",
keywords = "Homomorphic encryption, Lightweight block ciphers, NTRU, Prince",
author = "Yarkın Dor{\"o}z and Aria Shahverdi and Thomas Eisenbarth and Berk Sunar",
note = "Publisher Copyright: {\textcopyright} IFCA/Springer-Verlag Berlin Heidelberg 2014.; 18th International Conference on Financial Cryptography and Data Security ; Conference date: 07-03-2014 Through 07-03-2014",
year = "2014",
doi = "10.1007/978-3-662-44774-1_17",
language = "English (US)",
series = "Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)",
publisher = "Springer Verlag",
pages = "208--220",
editor = "Michael Brenner and Matthew Smith and Rainer B{\"o}hme and Tyler Moore",
booktitle = "Financial Cryptography and Data Security - FC 2014 Workshops, BITCOIN and WAHC 2014, Revised Selected Papers",
address = "Germany",
}