关键词: 云计算, 物联网, 挑战, 安全问题, 应对措施

Abstract: In order to improve people's quality of life, cloud computing and the Internet of things gradually play an important role in health care, education and agriculture, as well as many cross fields. Cloud computing's ability to transmit, store, process and access massive production data just makes up for the shortcomings of the Internet of things, and can better serve the future intelligent life. This paper discusses the challenges brought by the application scenarios of the Internet of things in cloud computing and the security issues of the three-level system, and puts forward the specific countermeasures related to the three-level security threats.

Key words: cloud computing, Internet of things, challenges, security, measures