Journals
Publish with us
Publishing partnerships
About us
Blog
Security and Communication Networks
Journal overview
For authors
For reviewers
For editors
Table of Contents
Special Issues
Security and Communication Networks
/
2019
/
Article
/
Figbox 3
/
Research Article
A Secure Data Sharing Scheme with Designated Server
Box 3
Game IND-Trapdoor
.
;
;
;
;
if
,
then return 1, if
;
else return 0.
Oracle
:
,
;
return