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Proceedings of the fourth working conference on smart card research and advanced applications on Smart card research and advanced applications
On the Length of Cryptographic Hash-Values Used in Identification Schemes
CRYPTO '94 Proceedings of the 14th Annual International Cryptology Conference on Advances in Cryptology
Design and Implementation of Low-Area and Low-Power AES Encryption Hardware Core
DSD '06 Proceedings of the 9th EUROMICRO Conference on Digital System Design
PRESENT: An Ultra-Lightweight Block Cipher
CHES '07 Proceedings of the 9th international workshop on Cryptographic Hardware and Embedded Systems
EUROCRYPT'91 Proceedings of the 10th annual international conference on Theory and application of cryptographic techniques
HB#: increasing the security and efficiency of HB+
EUROCRYPT'08 Proceedings of the theory and applications of cryptographic techniques 27th annual international conference on Advances in cryptology
Lightweight cryptography and RFID: tackling the hidden overheads
ICISC'09 Proceedings of the 12th international conference on Information security and cryptology
Pushing the limits: a very compact and a threshold implementation of AES
EUROCRYPT'11 Proceedings of the 30th Annual international conference on Theory and applications of cryptographic techniques: advances in cryptology
Authenticating pervasive devices with human protocols
CRYPTO'05 Proceedings of the 25th annual international conference on Advances in Cryptology
Public key cryptography and RFID tags
CT-RSA'07 Proceedings of the 7th Cryptographers' track at the RSA conference on Topics in Cryptology
Very compact hardware implementations of the blockcipher CLEFIA
SAC'11 Proceedings of the 18th international conference on Selected Areas in Cryptography
Improved (and practical) public-key authentication for UHF RFID tags
CARDIS'12 Proceedings of the 11th international conference on Smart Card Research and Advanced Applications
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Recently one of the most active fields of cryptography has been the design of lightweight algorithms. Often the explicit goal is to minimise the physical area for an implementation. While reducing area is an important consideration, beyond a certain threshold there is little point minimising area further. Indeed, it can be counter-productive and does not necessarily lead to the most appropriate solution. To provide a clear demonstration of this, we consider two lightweight algorithms that have been proposed for deployment on UHF RFID tags and which appear in a forthcoming ISO standard. Our results show that by choosing an implementation strategy that reduces but not necessarily minimises the area, very significant savings in time and substantial reductions to other physical demands on tag performance can be delivered. In particular, given the crucial importance of transaction time in the deployment of most contactless applications, our work illustrates that the most suitable practical implementation does not always conform to expectations.