CAJ | 학술논문

采用随机性码元频数检测的方法实现对链路层加密数据的识别,提高随机性码元频数检测识别率.传统方法采用随机抽样的比特序列加密方法,加密与未加密链路层出现混同,加密性能不好.提出一种基于随机性码元频数检测的比特序列加密算法.构建随机性码元频数检测保密通信系统,建立随机性码元频数比特序列模型,选择分块长度作为分块长度目标值,求解发送端随机性码元频数比特序列加密的时延,进行码元频数检测,实现比特序列加密算法改进.获得足够泛化性能的控制密钥,提高承载信息信号所引起的随机性码元频数比特序列的抗噪性能.仿真结果表明,采用该算法,能有效提高对未加密数据的识别率,提高识别结果的可信度,展示了较好的应用价值.
채용수궤성마원빈수검측적방법실현대련로층가밀수거적식별,제고수궤성마원빈수검측식별솔.전통방법채용수궤추양적비특서렬가밀방법,가밀여미가밀련로층출현혼동,가밀성능불호.제출일충기우수궤성마원빈수검측적비특서렬가밀산법.구건수궤성마원빈수검측보밀통신계통,건립수궤성마원빈수비특서렬모형,선택분괴장도작위분괴장도목표치,구해발송단수궤성마원빈수비특서렬가밀적시연,진행마원빈수검측,실현비특서렬가밀산법개진.획득족구범화성능적공제밀약,제고승재신식신호소인기적수궤성마원빈수비특서렬적항조성능.방진결과표명,채용해산법,능유효제고대미가밀수거적식별솔,제고식별결과적가신도,전시료교호적응용개치.
By using the method of random element frequency detection of the encryption data recognition of the link layer, it can improve the random element frequency detection and recognition rate. The traditional method is using the bit sequence random sampling method of data encryption, encrypted and unencrypted link layer appears confused, encryption perfor-mance is not good. This paper presents an encryption algorithm bit sequence random symbol frequency detection based on. Construction of random sex symbol frequency detecting secret communication system, establish the random element fre-quency bit sequence model, select the block length as the block length of the target value, solve the sending end delay en-crypted random symbol frequency bit sequence of symbols, frequency detection, realize the bit sequence of improved en-cryption algorithm. To obtain the control key generalization performance enough, improves the noise resistance performance of bearing random bit sequence symbol frequency caused by the information signal. The simulation results show that, using this algorithm, can effectively improve the unencrypted data recognition rate, improve the reliability of recognition result, showing a good application value.