Sharing multiple secrets using visual cryptography

Visual cryptography provides a very powerful technique by which one secret can be distributed into two or more pieces known as shares. When the shares on transparencies are superimposed exactly together the original secret can be discovered without computer participation. In this paper, we take multiple secrets into consideration, and generate a master key for all the secrets; correspondingly, we share each secret using the master key and obtain multiple shares. We merge these shares into a combined share, we adjust the master key and generate a new key. The secrets are revealed when the key is superimposed on the combined share in different locations using the proposed scheme. We provide the corresponding results in this paper.