Wireless Body Sensor Networks (WBSNs) is one of the greatest growing technology for sensing and performing various tasks. The information transmitted in the WBSNs is vulnerable to cyber-attacks, therefore security is very important. Denial of Service (DoS) attacks are considered one of the major threats against WBSNs security. In DoS attacks, an adversary targets to degrade and shut down the efficient use of the network and disrupt the services in the network causing them inaccessible to its intended users. If sensitive information of patients in WBSNs, such as the medical history is accessed by unauthorized users, the patient may suffer much more than the disease itself, it may result in loss of life. This paper proposes a User-Based authentication scheme to mitigate DoS attacks in WBSNs. A five-phase User-Based authentication DoS mitigation scheme for WBSNs is designed by integrating Elliptic Curve Cryptography (ECC) with Rivest Cipher 4 (RC4) to ensure a strong authentication process that will only allow authorized users to access nodes on WBSNs.

翻译：无线体域网(WBSNs)是当前发展最为迅速的感知与任务执行技术之一。由于在WBSNs中传输的信息易受网络攻击，因此安全性至关重要。拒绝服务(DoS)攻击被认为是威胁WBSNs安全的主要风险之一。在DoS攻击中，攻击者旨在削弱并阻断网络的有效使用，扰乱网络服务，导致合法用户无法访问网络。若WBSNs中患者的敏感信息（如病史）被未授权用户获取，患者可能承受比疾病本身更严重的后果，甚至危及生命。本文提出一种基于用户身份认证的DoS攻击缓解方案。通过集成椭圆曲线密码(ECC)与Rivest密码4(RC4)算法，设计了一个包含五个阶段的基于用户身份认证的DoS缓解方案，该方案通过强化认证过程，仅允许授权用户访问WBSNs中的节点。