Tree Parity Machine Rekeying Architectures

摘要

The necessity to secure the communication between hardware components inembedded systems becomes increasingly important with regard to the secrecy ofdata and particularly its commercial use. We suggest a low-cost (i.e. smalllogic-area) solution for flexible security levels and short key lifetimes. Thebasis is an approach for symmetric key exchange using the synchronisation ofTree Parity Machines. Fast successive key generation enables a key exchangewithin a few milliseconds, given realistic communication channels with alimited bandwidth. For demonstration we evaluate characteristics of astandard-cell ASIC design realisation as IP-core in 0.18-micrometerCMOS-technology.