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Tree parity machine rekeying architectures

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2 Author(s)
Volkmer, M. ; Dept. of Comput. Eng. VI, Hamburg Univ. of Technol., Germany ; Wallner, S.

The necessity of securing the communication between hardware components in embedded systems becomes increasingly important with regard to the secrecy of data and particularly its commercial use. We suggest a low-cost (i.e., small logic-area) solution for flexible security levels and short key lifetimes. The basis is an approach for symmetric key exchange using the synchronization of tree parity machines. Fast successive key generation enables a key exchange within a few milliseconds, given realistic communication channels with a limited bandwidth. For demonstration, we evaluate characteristics of a standard-cell ASIC design realization as IP-core in 0.18μ-technology.

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Computers, IEEE Transactions on  (Volume:54 ,  Issue: 4 )