Abstract: In one embodiment, a method includes scanning, by a first device, a code from a second device and determining, by the first device, information comprising a peer identifier and a first certificate hash using the code. The method also includes initiating, by the first device, a connection with the second device using the peer identifier and receiving, by the first device, a second certificate hash from the second device via the connection. The method further includes validating, by the first device, the second certificate hash using the first certificate hash, establishing a session with the second device, and transferring, by the first device, account information to the second device via the session.

Abstract: A device may receive, from a computing device, a request for a two-factor authentication of a user. A device may transmit, from a server to the computing device and based on the request, multi-factor authentication data to the computing device. A device may establish a short-distance wireless communication link between the computing device and a registered mobile device. A device may transmit, from the computing device and via the short-distance wireless communication link, encrypted data which is encrypted based on the multi-factor authentication data, to the registered mobile device. A device may receive, at the server and from the registered mobile device, a confirmation that corrected data was decrypted from the encrypted data. A device may provide, based on the confirmation, the user with access to a service via the computing device.