TH80562B - A process for manipulating symmetric index keys in communication networks and devices for the implementation of such processes. - Google Patents

Abstract

A communication network consists of one (1) type of device attached to the source. Generating information that will spread on the network And at least one of the second (2) devices intended to receive such information. The following steps are included: - The source device (1) determines the first symmetrical index key (Kc) and sends this index key firmly (E1 {PUB2} (Kc)) to the machine device. Receive (2) at least one - the receiver device (2) accepts the first symmetric index key (Kc). Encrypts this index key (E2) with the help of the second symmetric index key (Kn) that Familiar with The network receiver (2) device and sends the encrypted index to the source device - the source device (1) will retrieve the encryption (E2 {Kn} (Kc)) of the index key. At least one symmetric one (Kc) and stored prior to transmission (CW) to the receiving device (2). The source device (1) encrypts this data (E3) with the help of Pattern index key First-symmetric (Kc), then the device sends these encrypted data (E3 {Kc} (CW)) together with the first encrypted symmetric index key (E2 {Kn} (Kc)). At least one (2) receiver device The receiver device (2) decrypts the first symmetric index key (Kc) with the help of the second index key (Kn). After that, the device will decrypt. Data encrypted using the help of the first symmetric index key recovered like this. Crafting also has to do with devices for making the process work.

Claims (1)

1. The process of managing symmetric index keys in a communication network consists of one type of device. That is installed with the source of information to spread on the network and at least one second type of device intended: