| 摘要 |
FIELD: physics, communications.SUBSTANCE: invention relates to authentication methods. The method comprises steps of: ensuring availability of a first call-reply pair on a source device, wherein the first call-reply pair is assigned to one or more called devices; downloading the first call-reply pair from the source device onto a calling device when the source device is actively connected to the calling device; performing call-reply authentication between the calling device and one of the one or more called devices to which the first call-reply pair is assigned, using the first call-reply pair assigned to the called device; downloading one or more second call-reply pairs from the source device onto the calling device when the source device is actively connected to the calling device, wherein the downloading step is characterised by that the first call-reply pair is downloaded from the source device onto the calling device before the calling device receives any information from one of the called devices assigned the first call-reply pair.EFFECT: more secure data transmission.12 cl, 4 dwg |
