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Advances in Multimedia
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2008
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Article
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Fig 1
/
Research Article
A Lightweight Buyer-Seller Watermarking Protocol
Figure 1
Our proposed watermarking protocol.
Y
1
is the seller's copy, and
Y
2
is the buyer's copy.
ℰ
B
(
⋅
)
is a hybrid encryption [
23
] with the public key of buyer.
h
S
is the fingerprint of the original image, and it is signed by the seller (the signature is not shown here).