A first device may discover, using a short-range wireless communication protocol, an authentication service advertised by a second device, and may establish, with the second device, a connection using the short-range wireless communication protocol. The first device may display, after establishing the connection with the second device, a first identifier, and may provide to the second device a confirmation request including the first identifier to permit the second device to determine whether a second identifier, input by a user into the second device, matches the first identifier. The first device may receive, from the second device, encrypted credentials to authenticate the user to access a service based on the second device determining whether the second identifier matches the first identifier. The first device may decrypt the encrypted credentials to obtain credentials, and may authenticate, using the credentials, the user to access the service.