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computational and energy costs of cryptographic algorithms on handheld devices加密算法的计算和能源成本在手持设备上.pdf

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computational and energy costs of cryptographic algorithms on handheld devices加密算法的计算和能源成本在手持设备上

Future Internet 2011, 3, 31-48; doi:10.3390/ﬁ3010031 OPEN ACCESS future internet ISSN 1999-5903 /journal/futureinternet Article Computational and Energy Costs of Cryptographic Algorithms on Handheld Devices ` ´ Helena Rifa-Pous and Jordi Herrera-Joancomartı Internet Interdisciplinary Institute, Universitat Oberta de Catalunya, Barcelona 08018, Spain ` Department of Information and Communications Engineering, Universitat Autonoma de Barcelona, Campus UAB Ediﬁci Q, Bellaterra 08193, Spain; E-Mail: jherrera@deic.uab.cat Author to whom correspondence should be addressed; E-Mail: hrifa@. Received: 11 October 2010; in revised form: 30 January 2011 / Accepted: 31 January 2011 / Published: 14 February 2011 Abstract: Networks are evolving toward a ubiquitous model in which heterogeneous devices are interconnected. Cryptographic algorithms are required for developing security solutions that protect network activity. However, the computational and energy limitations of network devices jeopardize the actual implementation of such mechanisms. In this paper, we perform a wide analysis on the expenses of launching symmetric and asymmetric cryptographic algorithms, hash chain functions, elliptic curves cryptography and pairing based cryptography on personal agendas, and compare them with the costs of basic operating system functions. Results show that although cryptographic power costs are high and