Encrypted image quick search-based social discovery method

The invention discloses an encrypted image quick search-based social discovery method. According to the social discovery method, for the situation that an encrypted image quick search-based social discovery scheme has two problems that a large amount of storage spaces are required and a large amount of search time is consumed in the prior art, an encrypted image quick search-based solution in a cloud environment is proposed; firstly an MD-algorithm-based searchable encrypted index for describing user image contents is pre-established, and the index is stored in a cloud server together with a user image; and then encrypted images matched with a user are retrieved through security similarity operation to find users with similar images, so that a friend recommendation function is realized. Compared with the existing scheme, the proposed solution not only can accurately find other users with similar images with the target user but also reduces the storage spaces and improves the search efficiency. 本发明公开了种基于加密图像快速