面向资源受限环境的联合指纹与加密方法研究

Joint Fingerprinting and Encryption Scheme in Resource-constrained Environment

针对目前多媒体分享所面临的日益突出的安全问题以及资源受限环境的高要求,以数字图像为对象展开研究,直接在小波域系数的位面上对图像进行联合指纹嵌入与加密处理.实验结果表明,仅针对近似分量进行加密,加密图像的直方图趋于一致,选择加密的应用使得该方法可以直接应用于资源受限环境下的多媒体安全分享.

In order to solve multimedia sharing security issues and meet the demand in resource-con-strained environment, the application of joint fingerprinting and encryption technology for digital images was discussed, and the algorithm was proposed mainly based on bit level of wavelet coefficients. The ex-perimental results showed that the encrypted images had uniform histograms although only the approxima-tions of the origin images were encrypted. The proposed scheme could be applied on multimedia secure sharing in the resource-constrained environment.