@misc{10902/24855, editor = {Organización Mundial de la Propiedad Intelectual (OMPI/WIPO)}, year = {2016}, url = {http://hdl.handle.net/10902/24855}, abstract = {A network device arranged to determine a shared key with a second network device is presented. The first network device is arranged to substitute an identity number of the second network device into a univariate private key polynomial to obtain an intermediate key. The network device comprises - a key derivation unit arranged to - extract from the intermediate key multiple bit-strings, the multiple bit-strings being non-overlapping, consecutive substrings of the intermediate key, each two adjacent bit-strings of the multiple bit-strings are separated in the intermediate key by at least one bit which does not belong to any of the multiple bit-strings, and - derive the shared key from the multiple bit-strings.}, title = {Key sharing device and method}, author = {Gutiérrez Gutiérrez, Jaime and Gómez Pérez, Domingo and Tolhuizen, Ludovicus Marinus Gerardus Maria and Rietman, Ronald and García Morchón, Óscar}, }