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revision 1.165 by hemppah, Thu Mar 20 13:04:19 2003 UTC revision 1.166 by hemppah, Thu Mar 20 13:07:04 2003 UTC
# Line 888  Optimal solution for trust in Peer-to-Pe Line 888  Optimal solution for trust in Peer-to-Pe
888  Quite recently, widely used Public Key Infrastructure (PKI) has been deployed in distributed  Quite recently, widely used Public Key Infrastructure (PKI) has been deployed in distributed
889  systems \cite{rivest96sdsi}, \cite{spkiworkinggroup}. PKI is a reliable technology for securing  systems \cite{rivest96sdsi}, \cite{spkiworkinggroup}. PKI is a reliable technology for securing
890  data in rather \emph{static} computing systems, such as the Internet. However, in Peer-to-Peer  data in rather \emph{static} computing systems, such as the Internet. However, in Peer-to-Peer
891  networks, the problem of key based security mechanism is the maintenance of the keys as participating  networks, the problem of key-based security mechanism is the maintenance of the keys as participating
892  peers constantly join and leave the system. Specifically, the distribution of key changes becomes an essential  peers constantly join and leave the system. These include revocation of keys and new key distribution in hostile
 problem in ad hoc environments. These include revocation of keys and new key distribution in hostile  
893  environment.  environment.
894    
895  ConChord \cite{ajmani02conchord} is the first Peer-to-Peer system which has a support for PKI based  ConChord \cite{ajmani02conchord} is the first Peer-to-Peer system which has a support for PKI based

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