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Cryptographic initialisation wherein RNC server instructs one communication partner to add an encryption flag to and begin encrypting its communications
Cryptographic initialisation wherein RNC server instructs one communication partner to add an encryption flag to and begin encrypting its communications
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机译:加密初始化,其中RNC服务器指示一个通信伙伴向其通信添加加密标志并开始对其通信进行加密
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摘要
A RNC server (103) operating in a C-plane (control plane) issues an encryption-start instruction (53-1) to a media gateway (MG) (104) or a terminal (200) operating in the U plane (user plane). Whichever of the MG and terminal, receives the instruction, encrypts U-Plane information using a predetermined secret key, and adds a predetermined encryption-start bit to the encrypted U-Plane information (53-2) for transmission to the other (53-3) (its communication partner). The communication partner, upon detection of the encryption-start information, decrypts the received U-Plane information using the predetermined secret key. The system may be used with IMT-2000 system configurations and should result in faster set up than the conventional system of specifying a frame number for encryption to commence.
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