IoT is the fastest-growing technology with a wide range of applications in various domains. IoT devices generate data from a real-world environment every second and transfer it to the cloud due to the less storage at the edge site. An outsourced cloud is a solution for handling the storage problem. Users' privacy can be exposed by storing the data on the cloud. Therefore, we propose a Private Data Storage model that stores IoT data on the outsourced cloud with privacy preservation. Fog nodes are used at the edge side for data partition and encryption. Partitioned and encrypted data is aggregated with the help of homomorphic encryption on the outsourced cloud. For secure query processing and accessing the data from the outsourced cloud, the introduced model can be used on the outsourced cloud.

翻译：IoT 是增长最快的技术, 在不同领域应用范围很广。 IoT 设备每秒从真实世界环境中生成数据, 并将数据传输到云层, 因为边缘地点的存储量较少。 外包云是处理存储问题的解决方案。 用户隐私可以通过将数据储存在云层上而暴露出来。 因此, 我们提出一个私家数据存储模型, 将IoT数据储存在外包云上, 并保护隐私。 在数据分割和加密的边缘, 使用雾节点。 分离和加密数据在外包云层的同形态加密帮助下汇总。 为了安全查询处理和从外包云层获取数据, 引入的模型可以用于外包云层 。