{"product_id":"secret-sharing-in-user-hierarchy-von-ruchira-naskar","title":"Secret Sharing in User Hierarchy","description":"\u003cp\u003eSecret sharing in user hierarchy represents a challenging area for research. A lot of research work has already been done in this direction. This book presents a novel approach to share a secret among a hierarchy of users while overcoming the limitations of the already existing mechanisms. Traditional (k + 1; n)-threshold secret sharing, is secure as long as an adversary can compromise not more than k secret shares. But in real life it is often feasible for an adversary to obtain more than k shares over a long period of time. Here we present a way to overcome this vulnerability, while implementing our hierarchical secret sharing scheme. The use of Elliptic Curve Cryptography makes the computations easier and faster in our work. At present, a number of efficient schemes exist for sharing a secret into a group of users who are arranged into a hierarchy. Incidentally, all existing schemes have been developed considering non-overlapping hierarchies. This book presents a generalization of the existing hierarchical secret sharing schemes, which is applicable to an overlapping or tangled user hierarchy.\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783659342646\"\u003e\u003ch3\u003eShare Generation, Distribution and Renewal\u003c\/h3\u003e\u003c\/div\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Softcover - 9783659342646","offer_id":39485394780253,"sku":"9783659342646","price":49.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/dccd3cb9-7f59-4063-855e-9871a008a4e9.jpg?v=1773381348","url":"https:\/\/shop.autorenwelt.de\/products\/secret-sharing-in-user-hierarchy-von-ruchira-naskar","provider":"Autorenwelt Shop","version":"1.0","type":"link"}