The Proposed Hierarchical (k, k) VSS Scheme (Model and Description for Hierarchical (k, k) VSS Scheme )

A (a1+a2+¡K+aj)-layer (k, k) VSS scheme with k=p1a1 p2a2 ¡K pjaj

(1+p1+p12+¡K+p1(a1-1))¡¦s

(p1, p1) schemes

(p1a1„e(1+p2+p22+¡K+p2(a2-1)))¡¦s (p2, p2) schemes

The share size is now :

2a1 (p1 - 1)„e ¡K„e 2aj (pj-1).