Год выпуска: 2010 Автор: Eystein Maloy Stenberg Издательство: LAP Lambert Academic Publishing Страниц: 116 ISBN: 9783838387710
Описание
The nodes in a Mobile Ad hoc Network (MANET) have limited computing and bandwidth resources, making the design of methods for cryptographic key management particularly challenging. Because the network infrastructure is unstable, assuming that authorities used in key management are implemented using any single node is unrealistic. Threshold cryptography can be used to distribute an authority, such that it is implemented by multiple nodes. This makes the authority more robust against network failures and harder to compromise. Identity-based cryptography (IBC), where any identity may serve as a public key, makes certificates and certificate distribution superfluous. The authority issuing private keys corresponding to identities is called a Private Key Generator (PKG). This thesis considers distributing a PKG to the nodes in a MANET. It gives a description of a generic distributed PKG, including a definition of security. An example of a distributed PKG is also given. This distributed PKG...
