Data fusion calculation method and device for trusted execution environment, equipment and medium

The invention discloses a data fusion calculation method and device based on a trusted execution environment, equipment and a medium, and relates to the technical field of computers.The method comprises the steps that an encrypted data set and a symmetric key which are sent by a data provider and obtained by encrypting a target data set through the symmetric key are obtained, decrypting the encrypted data set by using the symmetric key to obtain a target data set; the symmetric key is a key generated by a data provider; performing data fusion calculation according to the target data set and based on an intelligent contract between the data provider and the data acquirer to obtain a data result set; acquiring a first public key sent by the data acquisition party, encrypting the data result set by using the first public key to obtain an encrypted result set, and sending the encrypted result set to the data acquisition party, so that the data acquisition party decrypts the encrypted result set by using a first p