ESTABLISHING A SECRET SHARED BETWEEN A FIRST COMMUNICATIONS DEVICE AND AT LEAST ONE SECOND COMMUNICATIONS DEVICE

摘要

A method performed by a computing device (10) of establishing a secret shared between a first communications device (20) and at least one second communications device (30) is provided. The method comprises acquiring (S101), using a first means of communication with the first communications device (20), a first data representation from which the shared secret can be derived. The method further comprises generating (S102) a second data representation from the first data representation, from which second data representation the shared secret can be derived. Moreover, the method comprises providing (S103), using a second means of communication, the second communications device (30) with the second data representation, the first means of communication being different from the second means of communication.