A computer-implemented method, comprising: receiving encoded connection information at a close-range input device (160-c) being a near field communication input device of a client mode electronic device (120-2) from a server mode electronic device (120-1), wherein the encoded connection information comprises a quick response code encoding a hash value, an Internet protocol address, and a transmission control protocol port number, wherein the hash value is obtained from applying a hash function on a random number generated by the server mode electronic device (120-1) and a digital certificate associated with the server mode electronic device (120-1); decoding the encoded connection information into one or more connection elements; establishing a communication connection with the server mode electronic device (120-1) utilizing the connection elements; receiving authentication information at the client mode electronic device (120-2) via the communication connection; authenticating the server mode electronic device (120-1) to the client mode electronic device (120-2) utilizing the authentication information ; and generating one or more human-readable authentication elements (146-f) responsive to authentication of the server mode electronic device (120-1) for presentation via a display of a close-range output device (160-c) of the client mode electronic device (120-2) and a display of the server mode electronic device (120-1), the one or more human-readable authentication elements (146-f) configured to confirm authentication of the client mode electronic device (120-2) to the server mode electronic device (120-1), wherein the one or more human readable authentication elements comprise one or more word lists. receiving encoded connection information at a close-range input device (160-c) being a near field communication input device of a client mode electronic device (120-2) from a server mode electronic device (120-1), wherein the encoded connection information comprises a quick response code encoding a hash value, an Internet protocol address, and a transmission control protocol port number, wherein the hash value is obtained from applying a hash function on a random number generated by the server mode electronic device (120-1) and a digital certificate associated with the server mode electronic device (120-1); decoding the encoded connection information into one or more connection elements; establishing a communication connection with the server mode electronic device (120-1) utilizing the connection elements; receiving authentication information at the client mode electronic device (120-2) via the communication connection; authenticating the server mode electronic device (120-1) to the client mode electronic device (120-2) utilizing the authentication information ; and generating one or more human-readable authentication elements (146-f) responsive to authentication of the server mode electronic device (120-1) for presentation via a display of a close-range output device (160-c) of the client mode electronic device (120-2) and a display of the server mode electronic device (120-1), the one or more human-readable authentication elements (146-f) configured to confirm authentication of the client mode electronic device (120-2) to the server mode electronic device (120-1), wherein the one or more human readable authentication elements comprise one or more word lists. <EOS>