A new model of security for distributed systems
NSPW '96 Proceedings of the 1996 workshop on New security paradigms
Legion: flexible support for wide-area computing
EW 7 Proceedings of the 7th workshop on ACM SIGOPS European workshop: Systems support for worldwide applications
HPDC '96 Proceedings of the 5th IEEE International Symposium on High Performance Distributed Computing
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In a public key cryptographic system, the uniqueness and authenticity of the keys are essential to the success of the system. Traditionally, a single, centralized key distribution/certification server has been used to generate and distribute keys. This approach requires a distinguished trusted entity which could potentially become a single point of failure or penetration in a distributed environment. We present in this paper a new, simple way to handle distributed key generation We assign a unique range of m-bit numbers to each key generator in the system. As a result, the lower-order m bits of the keys generated is a unique number in the assigned range. our scheme not only provides a way to generate globally unique keys in an independent, distributed fashion, it also enhances the security of public-key cryptosystems by eliminating the mapping between keys and entity names.