基于RSA和图像关键信息的加密技术研究

The Research of the Encryption Algorithm Based on the RSA and the Key Information of Image

针对数字图像的版权保护问题和现有加密技术速度慢和实时性不高的特点,提出了一种基于RSA和图像关键信息的加密技术算法。该算法先对要加密的数字图像进行关键信息提取,然后利用加密性能优秀的RSA对图像关键信息进行加密处理,解决了对数字图像全部数据进行处理而速度慢的问题。实验结果显示该算法对现有几乎所有的数字图像格式都是有效的且速度快,较好地解决了数字图像实时加密速度慢的问题。

According to the problems of the copyright protection for digital images and the characteristics of the existing encryption algorithm having lower processing speed and lower real-time,this paper proposes an encryption algorithm based on the RSA and the key information of the images.The algorithm extracts the key information from the digital images to be encrypted at first,then uses the RSA algorithm that has an excellent encrypt performance to process the key information of the images,it solves the low-speed problems of algorithm processing all the data of the digital images.The experiment results show that the algorithm is effective and fast-speed on processing the almost all existing digital image formats,and it solves the problem of lower processing speed and lower real-time on digital image encryption.