Applications of visual cryptography

Abstract

Visual cryptography is a secret sharing scheme with only few known applications. This paper first modifies visual cryptography techniques to make them suitable for applications and then proposes some applications that use the modified techniques. These applications are secured communication system that are used to broadcast one or more secrets, multi-layer ID cards and secured fingerprint.

Keywords:

• visual cryptography
• multiple secrets
• broadcasting
• multi-layer ID cards
• fingerprint

Acknowledgement

We thank the Department of Information Technology, Government of India, through a project funded by them, for partially supporting this research.