Data processing method, system and equipment and computer readable storage medium

The invention discloses a data processing method, system and device and a computer readable storage medium, and is applied to a first privacy computing participant to obtain a first Yao sharing set; generating a random number set corresponding to the first privacy data; based on the first Yao sharing set, the weight data set and the random number set, generating to-be-transmitted information corresponding to the first privacy data; transmitting the to-be-transmitted information to a second privacy computing participant based on an oblivious transmission method and a second Yao shared set; calculating a target sum value of the random number set; and transmitting the target sum value to the second privacy calculation participant, so that the second privacy calculation participant calculates a weight sum value of the first privacy data and the second privacy data under the weight data set based on the received data and the target sum value. According to the method, data weight privacy summation between two priva