| 摘要 |
<p>A method and apparatus for encoding is disclosed. Primary data such as a work in which copyright subsists, is utilized in a steganographic process to encode secondary data, such as ownership or copyright information. The primary data contains a plurality of addressable first data elements and the secondary data contains a plurality of second data elements. The method includes searching for first data elements which match the contents of the second data elements. When a matching first data element is found a key element including the address of the matching first data element is generated. In one embodiment the method may be used for camouflaging a text message such as copyright information in primary data, such as audio, an image or video data. In another embodiment the method may be used to encrypt data for secure transmission of messages. Complementary decoding methods and apparatus are also disclosed.</p> |
