Computer Science – Cryptography and Security
Scientific paper
2003-07-26
Computer Science
Cryptography and Security
7 pages, no figures
Scientific paper
A group authentication protocol authenticates pre-defined groups of individuals such that: - No individual is identified - No knowledge of which groups can be successfully authenticated is known to the verifier - No sensitive data is exposed The paper presents a group authentication protocol based on splitting the private keys of the Naccache-Stern public-key cryptosystem in such a way that the Boolean expression defining the authenticable groups is implicit in the split.
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