Shopify Inc.
Systems and methods for exchanging data between devices

Abstract:

System and methods are provided to facilitate the exchange of user data between two parties, but limit the exchange of user data to users that are known to both parties. According to an embodiment, encrypted first user data is transmitted from a first device to a second device. The second device then transmits intersection data to the first device, where the intersection data is based on the encrypted first user data and second user data. The intersection data may be decrypted by the first device and the first device may determine, based on the decrypted intersection data, that one or more users are common to the both the first device and the second device. The first and second devices may then exchange data pertaining to the common users.