Abstract
Watermarking and Encryption are commonly technique for data protection. DMB contents are utilized widely without protection procedure. To solve the problems, we propose real-time watermarking and encryption method for DMB contents protection in this paper. To implement watermarking, we hide key information on a redundant space of program association table (PAT) and program mapped table (PMT) of T-DMB stream and hidden parts is encrypted by a stream encryption cipher. We implements encryption method without additional information in digital multimedia broadcasting (DMB) contents using AES (advanced encryption standard) encryption algorithm. In experimental result, when we implemented a play control on PMP which have built-in DSP device to get 100Mhz processing speed, almost had not a time delay and the hiding information in T-DMB stream was possible to do a play control. Additionally, we confirmed that the saved contents in a PMP were not played in other devices without decryption key. The proposed methods can be useful in real-time applications requiring contents protection service such as video on demand, IPTV and digital TV.
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Kim, WH., Kim, JN. (2010). Real Time Watermarking and Encryption Method for DMB Contents Protection. In: Kim, Th., Lee, Yh., Kang, BH., Ślęzak, D. (eds) Future Generation Information Technology. FGIT 2010. Lecture Notes in Computer Science, vol 6485. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-17569-5_48
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DOI: https://doi.org/10.1007/978-3-642-17569-5_48
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-17568-8
Online ISBN: 978-3-642-17569-5
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