Abstract:
Security requires the integration of people,
process, and technology. Strong information
encryption and decryption scheme are crucially
important for information technology. Nowadays,
secret sharing is one popular method for distributing
a secret amongst a group of participants, each of
which is allocated a share of the secret. This paper
presents a scheme which is derived from the
substitution of bits in the image by using nonlinear
pseudorandom sequence and visual cryptography
method and triple data encryption method. In our
method each participant has a unique modified cover
image called stego-image. Therefore these
participants are required to reconstruct the
encrypted secret data without destroying of its
secrecy. After that administrator decrypt the original
data. Therefore the administrator is the central
authority of the process. Experiments show the good
quality of the stego-image. The proposed scheme
also prevents anyone if steal all the shares will not
gaining information about the secret data.
