An Efficient Hierarchical Identity Based Signature Scheme with Multiple Private Key Generators
Zeng Ji-xia · Computing Technology and Automation · 2011
A new hierarchical identity-based signature(HIBS) schemes is proposed.Contributions are many folds: First,there are multiple private key generators in the new scheme;Second,it is provably secure and has very good exact security against existential forgery for selective-ID attack in the standard model;Finally,security reduction of the scheme is very tight.