CAJ | 학술논문

为了提高合法用户在无线传感器网络（wireless sensor networks，WSNs）中访问节点数据时的安全性，基于已有的动态认证协议和 Das 协议，提出了一种混合 Das 协议的 WSNs 身份验证协议（MDas）。该协议具有动态认证协议通过单向散列函数和异或运算来实现加密／解密的性能，也具有 Das 协议采用唯一的智能卡进行身份验证的特点。相比 Das 协议和动态认证协议，MDas 协议增加了密码变更阶段，并且在协议的验证阶段增加了登录节点与传感器节点之间的互相验证操作，加强了身份验证的安全性。安全特性对比和计算成本分析结果表明，MDas协议可以抵御伪装网关重放攻击、伪装登陆节点攻击以及蛮力攻击，具有更好的安全性能。
위료제고합법용호재무선전감기망락（wireless sensor networks，WSNs）중방문절점수거시적안전성，기우이유적동태인증협의화 Das 협의，제출료일충혼합 Das 협의적 WSNs 신빈험증협의（MDas）。해협의구유동태인증협의통과단향산렬함수화이혹운산래실현가밀／해밀적성능，야구유 Das 협의채용유일적지능잡진행신빈험증적특점。상비 Das 협의화동태인증협의，MDas 협의증가료밀마변경계단，병차재협의적험증계단증가료등록절점여전감기절점지간적호상험증조작，가강료신빈험증적안전성。안전특성대비화계산성본분석결과표명，MDas협의가이저어위장망관중방공격、위장등륙절점공격이급만력공격，구유경호적안전성능。
In order to improve the security of legitimate user access to the node data in the wireless sensor networks (WSNs),an authentication protocol hybrid Das protocol for wireless sensor networks was proposed.This protocol has a dynamic authentication protocol by one-way hash function and XOR operation to achieve the encryption/decryption performance,and it also has a characteristic that Das protocol using only a smart card to authenticate.Compared with Das protocol and dynamic authentication protocol,MDas protocol increases the password change phase,and also increases the mutual verification operation between the login node and sensor nodes during the verification phase of the agreement to enhance the authentication security.The analysis on protocol security features comparison and calculation cost showed that the MDas protocol can resist the attack of camouflage gateway replay,and it has the better security performance.