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IEEE 2016 PROJECTS

 
 
VISUAL CRYPTOGRAPHY:
DEFINITION
»
Visual cryptography is a cryptographic technique which allows visual information (pictures, text, etc.) to be encrypted in such a way that decryption becomes a mechanical operation that does not require a computer.
 
INTRODUCTION
»
Visual cryptography is one of the techniques used in recent times to sustain the secret message broadcast.
 
»
complexity of encrypted and decrypted method is reduced in this technique and also two way communication can be achieved very steadily.
 
»
Halftone visual cryptography, watermarking visual cryptography, extended visual cryptography using complementary are the different techniques.
 
» Shares pair, auxiliary black pixels and parallel error diffusion are also used.
 
» It is a secret-sharing technique that encrypts a secret image into numerous shares but requires neither computer nor calculations to decrypt the secret image.
 
» Reconstruction of the secret image is done visually: simply by overlaying the encrypted shares the secret image becomes clearly visible.
 
 
   
 
Block Diagram:
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Features:
»
  • Easy to implement.
  • Hard problem dependency is not required while encryption.
  • No decryption algorithm required, anyone can decrypt the message.
  • FAX or E-MAIL is the mode of transmitting the cipher text.
  • The message cannot be predicted by infinite computation method.
 
Real Time Examples:
»
  • Customer Identification in Banks
  • Anti – spam bot
  • Electronic voting Machine
  • Colored digital watermarks
 
 
   
 
 
 
 
 
 
 
   
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