Application of robust public-key watermarking in coal mining information construction process

This paper explored the application of robust public-key watermarking in coal mining information construction combining the practice. After the requirement analysis of the electric equipment operation tickets (EEOT) integrity and robust security, it is proposed a solution scheme combining the robust watermarking technology and hash algorithm. The scheme used the certification information which generated by hash algorithm, and it was embedded into its image using robust public-key digital watermarking algorithm, so the EEOT contents can be double authentication. The platform and key technology were also introduced in the paper. From the performance in practice, the scheme is usable and it can make sure of the security and reliability of EEOT.