CAJ | 학술논문

SRTP协议是目前应用广泛的视频流传输协议，也是视频会议协同系统进行安全实时传送的基础。但该协议在加密模式、完整性检测、报文身份验证和抵御重播攻击等方面仍有不足，该文采用增加流加密算法选择器对加密算法选择进行优化组合，通过Hash运算生成散列序列增加完整性保护模块等途径，在保证实时性的同时，增加了报文被解码的难度，改进了完整性校验过程。通过进行相关的系统安全性能评估，验证了该方案对协同系统安全机制改进的可行性及有效性。
SRTP협의시목전응용엄범적시빈류전수협의，야시시빈회의협동계통진행안전실시전송적기출。단해협의재가밀모식、완정성검측、보문신빈험증화저어중파공격등방면잉유불족，해문채용증가류가밀산법선택기대가밀산법선택진행우화조합，통과Hash운산생성산렬서렬증가완정성보호모괴등도경，재보증실시성적동시，증가료보문피해마적난도，개진료완정성교험과정。통과진행상관적계통안전성능평고，험증료해방안대협동계통안전궤제개진적가행성급유효성。
Secure Real-time Transport Protocol (SRTP) is a widely used video streaming transport protocol today, it is also the basic of the cooperative system for video conference to do a safe and real-time transportation. However, there still exist some dis-advantages in SRTP, such as encryption mode, integrity detection, message authentication, replay attack prevention, etc. In this paper, a stream encipher algorithm selector is added to optimize the encryption algorithm, and a message integrity module is add-ed by executing a hash operation to generate the hash sequences, which increase the difficulty of decoding message and improve the integrity checking process while ensuring its real-time performance. System's security performance evaluation on the system proves the feasibility and validity of the proposed method.