数字水印：解决信息安全的良好途径

随着计算机和网络技术的飞速发展，信息安全问题愈来愈受到人们的关注，虽然密码技术在文本信息的加密方面非常有用，但随着多媒体技术的发展，多媒体信息的版权保护、真伪鉴别、盗版跟踪等问题逐渐浮现水面，无法通过密码技术解决。目前，国内外正研究的数字水印技术是解决这些问题的良好途径。

Digital Watermark： A Good Way to Ensure Information Safety

With the development of the information technology and the internet, the information security has become more public concern. For all the fact that the password technology plays a key part in text encryption, with the development of the multimedia technology, the IPR protection, identification and anti-fake tracing of the multimedia information have emerged. The conventional eneryption technology can not solve these problems. At present, the watermark technology, which is paying attention to both home and abroad, makes it possible to meet these needs.