| 摘要 |
Disclosed are a method and a system for secure watermark embedding in a server-client configuration ( 60,70 ). The method comprises encrypting ( 210 ) the data signal (x) and generating ( 240 ) a decryption key wherein a watermark (W<SUB>i</SUB>) is included. The client decrypts ( 420 ) the encrypted data signal in order to obtain a watermarked data signal (x<SUB>w</SUB>). In accordance with the invention, the encryption mechanism and decryption key are made dependent on a perceptual mask (m<SUB>1</SUB>,m<SUB>2</SUB>) so as eventually make the embedded watermark more robust.
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