This book constitutes the refereed proceedings of the 5th International Workshop on Digital Watermarking Secure Data Management, IWDW 2006, held in Jeju Island, Korea in November 2006.
The 34 revised full papers presented together with 3 invited lectures were carefully reviewed and selected from 76 submissions. The papers cover both theoretical and practical issues in digital watermarking and they feature such topics as steganography and steganalysis, data forensics, digital right management, secure watermarking, and their applications.