Abstract. We investigate a number of issues related to the use of multiple trust authorities and multiple identities in the type of identifier based cryptography enabled by the Weil and Tate pairings. An example of such a system is the Boneh and Franklin encryption scheme. We present various applications of multiple trust authorities. In particular we focus on how one can equate a trust authority with a way to add contextual information to an identity.
In REF , Chen et al. investigate a number of issues related to the use of multiple authorities in ID-based encryption from bilinear pairings.
Applications of Multiple Trust Authorities in Pairing Based Cryptosystems
InfraSec
Computer Science