HDMI接口上基于RSA算法的连接保护系统

Link Protection System Based on RSA over HDMI

目前,HDMI接口上唯一可用的连接保护算法HDCP在系统结构和认证协议部分有安全性的缺陷。针对现有的缺陷以及实际应用需求设计了新的连接保护系统,认证部分采用证书系统结合RSA算法,加密模块种子扩展到128位,大大提高了该接口的安全性。

Now the link protection over HDMI is HDCP only, which has some weakness on system architecture and authentication protocol. A new link protection system is designed in this paper for these weakness existing and requirement of real application. Certificate system with RSA cryptography is used for authentication, and a 125 bit seeds for the cipher, thus the security of HDMI is greatly enhanced.