Cryptography is the ability of changing information into obvious unintelligibility in a way allowing a secret method of un-mangling. The vital idea of cryptography is the capability to send information between participants in a way that prevents others from reading it. Much cryptography methods are available which are based on number theory but it has the disadvantage of requirement a large com...

Visual cryptography scheme is the concept of encrypting a secret image into n(more than one) shares. Rotation Visual Cryptography scheme (RVCS) allows four secret images to be encrypted into two shares. Using Human Visual System, again the four secret images can be easily recovered by placing the two shares on top of each other with different angles. In this paper proposes a Rotation Visual Cry...