A Scalable PKI Based on P2P Network

Public Key Infrastructure (PKI) is a powerful tool for protecting information. Currently a PKI system shows a trend toward an emerging global PKI which becomes more complicated. The global PKI has to handle an enormous number of queries for cryptographic certificates which attest the authenticity of public keys. So a decentralized organization of the PKI is advantageously. Therefore the authors developed a specialized Peer-to-Peer-PKI model realizing efficient search and transfer of certificates and trust-recommendations. Their model based on their own rigorous binary tree algorithm and has four advantages.