基于情境的个性化服务已经广泛应用在人们的日常生活中，并且在不断扩展服务的应用范围。然而，在这些 个性化服务体验的背后，也隐藏着不容忽视的隐私问题。因此，研究情景隐私的保护有迫切的现实需要。本论文重新分析移 动端重情境隐私保护的隐私模型，突破当前情境隐私保护的狭隘概念，完善情境隐私保护的理论基础，提出新的情境隐私的保 护方法，拟将解决当前情境隐私保护中理论基础不完善的现状，促进密码学、网络安全与软件安全技术的发展与情境隐私保护 方法的实用化。

Context-based personalized service has been widely used in people's daily life, and in the continuous expansion of the scope of service applications. However, behind these personalized service experiences, there are hidden privacy issues that cannot be ignored. Therefore, the study of the protection of situational privacy is an urgent need to achieve. This paper analyzes the privacy model of privacy protection in mobile context, breaks through the narrow concept of current situation privacy protection, improves the theoretical basis of situational privacy protection, puts forward the new protection method of situational privacy, and tries to solve the theoretical basis of current situation privacy protection imperfect status quo, to promote the development of cryptography, network security and software security technology and the practical application of situational privacy protection methods.