PRINCE - A Low-Latency Block Cipher for Pervasive Computing Applications: Extended Abstract

J. Borghoff, Anne Michele Canteaut, T. Guneysu, E.B. Kavun, M. Knezevic, Lars Ramkilde Knudsen, Gregor Leander, V. Nikov, C. Paar, Christian Rechberger

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    Abstract

    his paper presents a block cipher that is optimized with respect to latency when implemented in hardware. Such ciphers are desirable for many future pervasive applications with real-time security needs. Our cipher, named PRINCE, allows encryption of data within one clock cycle with a very competitive chip area compared to known solutions. The fully unrolled fashion in which such algorithms need to be implemented calls for innovative design choices. The number of rounds must be moderate and rounds must have short delays in hardware. At the same time, the traditional need that a cipher has to be iterative with very similar round functions disappears, an observation that increases the design space for the algorithm. An important further requirement is that realizing decryption and encryption results in minimum additional costs. PRINCE is designed in such a way that the overhead for decryption on top of encryption is negligible. More precisely for our cipher it holds that decryption for one key corresponds to encryption with a related key. This property we refer to as α-reflection is of independent interest and we prove its soundness against generic attacks.
    Original languageEnglish
    Title of host publicationAdvances in Cryptology – ASIACRYPT 2012 : 18th International Conference on the Theory and Application of Cryptology and Information Security, Beijing, China, December 2-6, 2012. Proceedings
    PublisherSpringer
    Publication date2012
    Pages208-225
    ISBN (Print) 978-3-642-34960-7
    ISBN (Electronic)978-3-642-34961-4
    DOIs
    Publication statusPublished - 2012
    Event18th International Conference on the Theory and Application of Cryptology and Information Security - Beijing, China
    Duration: 2 Dec 20126 Dec 2012

    Conference

    Conference18th International Conference on the Theory and Application of Cryptology and Information Security
    CountryChina
    CityBeijing
    Period02/12/201206/12/2012
    SeriesLecture Notes in Computer Science
    Volume7658
    ISSN0302-9743

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