摘要： 为了检测多媒体中的敏感数据是否被恶意篡改或传输错误,将多媒体编码过程与认证过程相结合,信道编码过程与加密过程相结合,构建了一种可靠的多媒体安全传输方案,敏感数据采用数字签名并将签名嵌入敏感区域,纠错编码与混沌流密码相结合,实现信道的纠错和加密。理论实践表明,该方案计算复杂度低,既保证了安全性,又具有实时性,适用于图像、数据等多媒体的安全传输。

关键词: 选择加密, 签名认证, 纠错编码, 多媒体传输

Abstract: To detect malicious tamper or transmission errors,a secure encryption multimedia transmission scheme is proposed,which combines compression process with authentication process,and also combines channel-encoding process with encryption process.The authentication process signs the sensitive data,and embeds the generated signature into the data the mselves.The channel-encoding and encryption process combines error correction encoding with chaotic stream cipher,which achieves error correction and data encryption at the same time.The theory and practices show that this scheme make the system time-efficient which is secure and realtime and suitable for secure multimedia transmission of image and video.

中图分类号: 

• TN918.91