| 1. | If the sharing secret algorithm based on chinese remainder theorem is expanded by database watermark , full watermark information can not only be recovered only with a part of watermark , but also the data for watermark can be reduced , moreover the performance can be improved significantly 通过研究发现,如果将基于中国剩余定理的秘密共享思想加以扩展后应用于数据库水印算法,不仅能够基于部分数据恢复水印信息,而且水印数据的扩张大量减少,算法性能有更进一步的提高。 |