Methods and apparatus for robust embedded data

1. A method of embedding auxiliary information in data, said method comprising:

receiving data and correlated data, the correlated data being related to but independent from the received data, in which the received data comprises audio or video and the correlated data comprises song lyrics;

receiving auxiliary information, the auxiliary information being independent of the received data and the correlated data;

using an electronic logic processor, changing the auxiliary information based on the correlated data; and

using an electronic logic processor, embedding the changed auxiliary information in the received data.

2. The method of claim 1 in which said embedding comprises steganographic embedding.

3. The method of claim 1 in which the received data comprises a plurality of frames, and wherein said embedding includes placing the changed auxiliary information in a header associated with one of the plurality of frames.

4. The method of claim 1 in which the embedding places the changed auxiliary information in a global header associated with the received data.

5. An apparatus comprising an electronic logic processor programmed for performing the method of claim 1 .

6. A method of embedding auxiliary information in data, said method comprising:

receiving data and correlated data, the correlated data being related to but independent from the received data, in which the correlated data comprises a name or address;

receiving auxiliary information, the auxiliary information being independent of the received data and the correlated data;

using an electronic logic processor, changing the auxiliary information based on at least the correlated data; and

using an electronic logic processor, embedding the changed auxiliary information in the received data.

7. The method of claim 6 in which said embedding comprises steganographic embedding.

8. The method of claim 6 in which the received data comprises a plurality of frames, and wherein said embedding includes placing the changed auxiliary information in a header associated with one of the plurality of frames.

9. The method of claim 6 in which the embedding places the changed auxiliary information in a global header associated with the received data.

10. An apparatus comprising an electronic logic processor programmed for performing the method of claim 6 .

11. A method of embedding auxiliary information in data, said method comprising:

receiving data and correlated data, the correlated data being related to but independent from the received data, in which the received data comprises a photograph, and the changed auxiliary information is embedded within the photograph;

receiving auxiliary information, the auxiliary information being independent of the received data and the correlated data;

using an electronic logic processor, changing the auxiliary information based on the correlated data; and

using an electronic logic processor, embedding the changed auxiliary information in the received data.

12. The method of claim 11 further comprising providing the photograph including the embedded changed auxiliary information on or in an identification document and wherein the photograph is associated with a bearer of an identification document.

13. The method of claim 12 wherein the correlated data comprises one of a name or address.

14. The method of claim 11 in which said embedding comprises steganographic embedding.

15. The method of claim 11 in which the received data comprises a plurality of frames, and wherein said embedding includes placing the changed auxiliary information in a header associated with one of the plurality of frames.

16. The method of claim 11 in which the embedding places the changed auxiliary information in a global header associated with the received data.

17. An apparatus comprising an electronic logic processor programmed for performing the method of claim 11 .