利索-全球专利检索

  1. 登录
  2. 注册
发明授权
CN1578207B 信息传输系统及其中的信息发送设备和信息接收设备 失效 - 权利终止 转让

信息传输系统及其中的信息发送设备和信息接收设备
摘要：
本发明涉及信息传输系统及其中的信息发送设备和信息接收设备。接收机发送第一随机数给发射机。发射机响应于从接收机中发送的第一随机数生成一个同步信号。发射机把同步信号和密钥信息嵌入在第二随机数中以便生成一个复合信号。在复合信号中，同步信号是密钥信息的位置指示符。发射机发送复合信号给接收机。发射机从密钥信息中生成加密密钥。接收机检测从发射机中发送的复合信号中的同步信号。接收机响应于检测到的同步信号从复合信号提取密钥信息。接收机从所提取的密钥信息中生成一个加密密钥。由接收机生成的加密密钥等于由发射机生成的加密密钥。因此，发射机和接收机共同保存相同的加密密钥。
摘要（英）：

Information transmission system, and information sending apparatus and information receiving apparatus used therein. A receiver sends a first random number to a transmitter. The transmitter generatesa sync signal in response to the first random number sent from the receiver. The transmitter embeds the sync signal and key information in a second random number to generate a composite signal. In thecomposite signal, the sync signal is a position indicator for the key information. The transmitter sends the composite signal to the receiver. The transmitter generates an encryption key from the keyinformation. The receiver detects the sync signal in the composite signal sent from the transmitter. The receiver extracts the key information from the composite signal in response to the detected sync signal. The receiver generates an encryption key from the extracted key information. The encryption key generated by the receiver is equal to that generated by the transmitter. Thus, the transmitter and the receiver hold the same encryption key in common.

公开/授权文献
0/0