随着信息技术的不断发展与进步,云计算逐渐成为人们关注的热点。云计算在气候建模等科学计算领域与商业领域的数据存储与计算中发挥着重要作用,为人们的生产生活带来了极大的便利。但是,与此同时出现的各种云计算安全问题也引起了人们的注意。因此,文章主要对云计算数据保密与安全问题研究进行总结与思考。 With the continuous development and progress of information technology, cloud computing has gradually become a hot spot for people’s attention. Cloud computing plays an important role in data storage and calculation in scientific computing and business fields such as climate modeling, bringing great convenience to people’s production and life. However, at the same time, various cloud computing security problems have also drawn people’s attention. Therefore, the article mainly summarizes and ponders over the research on the security and confidentiality of cloud computing data.