Distributing Confidentiality to a Visual Secret Sharing Scheme

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Provided by: International Journal of Engineering and Advanced Technology (IJEAT)
Topic: Security
Format: PDF
A Visual Secret Sharing (VSS) scheme is one realization of secret sharing schemes without using computation which distinguishes VSS from ordinary cryptography. In a typical VSS scheme (normally called a (k, n) - threshold VSS scheme), a dealer encodes a secret image in to 'n' shares each of which reveals no information regarding the secret image. In this system, the secret image can be reproduced only by stacking n number of shares in the correct order. The reproduced images will be clearer (larger contrast) and with small pixel expansion compared to Unconditional security VSS scheme.
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