Data encryption method and device

The invention relates to the field of big data, and provides a data encryption method and device. The method comprises the following steps: acquiring a position data set; querying the sensitivity of the position data set; under the condition that the sensitivity of the position data set meets a sensitivity threshold value, fuzzy encryption is carried out on the position data set to obtain an encrypted position data set, and the fuzzy encryption comprises space fuzzy encryption and time fuzzy encryption. Compared with a traditional encryption method, the data encryption method provided by the embodiment of the invention has the advantages that the availability of encryption calculation is ensured while the calculation steps are simplified, and the data encryption method has better stability and effectiveness. 本申请涉及大数据领域，提供一种数据加密方法及装置。所述方法包括：获取位置数据集；对所述位置数据集的敏感度进行查询；在所述位置数据集的敏感度满足敏感度阈值的情况下，对所述位置数据集进行模糊加密得到加密位置数据集，所述模糊加密包括空间模糊加密和时间模糊加密。本申请实施例提供的数据加密方法与传统的加密方法比较，简化了计算步骤的同时保证了加密计算的可用性能，具有更好的稳定性和有效性。