一种基于盲源分离的数据保密方法  

A Method for Data Secrecy Based on Blind Source Separation

作　　者：焦卫东[1,2] 杨世锡[1] 吴昭同[1] 

机构地区：[1]浙江大学机械工程系 [2]浙江嘉兴学院机电与建筑工程学院机电系,嘉兴314001

出　　处：《中国图象图形学报》2005年第6期710-716,i003,共8页Journal of Image and Graphics

基　　金：国家自然科学基金(50205025);浙江省自然科学基金(5001004)

摘　　要：盲源分离是一种很有希望的信号处理技术,具有独特的盲信息处理和波形保持能力。为了获得可靠的数据保密效果,通过引入虚拟观测,将盲源分离在消噪方面的应用思想加以扩展,形成了一种新的基于完全覆盖策略的数据保密方法。该方法不仅可行,且具有相当高的可靠度。实验结果表明,此方法简单有效,有很多吸引人的特点,可用于多种类型数据(如文本、声音及图像等)的保密。因此,在信息安全领域有较大应用潜力。Blind source separation is a promising technique for signal processing, which has such features as blind information processing and waveform restoral. In order to keep the data secret reliably, the applicable principle of BSS in noise removal was extended to form a kind of new method for data secrecy based on the strategy of complete covering, by the introduction of virtual observation. This new method is not only feasible, but of very high security. The results of experiments verified that this new method for data secrecy was simple and effective and had many charming features. For example, it was very simple to use, and has considerable flexibility to implement. Therefore, this method can be used for keeping secrecy of many kinds of different data such as text, speech and image. All of these implied its great potential in information security field.

关 键 词：独立分量分析 盲源分离 数据保密 噪声消除 完全覆盖 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]