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KEY DISTRIBUTION SYSTEM AND METHOD, KEY GENERATION DEVICE, REPRESENTATIVE USER TERMINAL, SERVER DEVICE, USER TERMINAL AND PROGRAM
KEY DISTRIBUTION SYSTEM AND METHOD, KEY GENERATION DEVICE, REPRESENTATIVE USER TERMINAL, SERVER DEVICE, USER TERMINAL AND PROGRAM
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机译：密钥分发系统和方法，密钥生成设备，代表性用户终端，服务器设备，用户终端和程序
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摘要
A key distribution system includes a representative user terminal 2p, a server apparatus 3, and an (n+1)-th user terminal 2n+1. The representative user terminal 2p uses a public key for the (n+1)-th user terminal 2n+1 and information for identifying the (n+1)-th user terminal 2n+1 to encrypt key information with a predetermined encryption function in Certificate-less Encryption to obtain ciphertext. The server apparatus 3 sends the ciphertext to the (n+1)-th user terminal 2n+1 when the (n+1)-th user terminal 2n+1 is added. The (n+1)-th user terminal 2n+1 uses a complete secret key for the (n+1)-th user terminal 2n+1 and the information for identifying the (n+1)-th user terminal 2n+1 to decrypt the ciphertext with a predetermined decryption function to obtain the key information.
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机译：密钥分发系统包括代表用户终端2 p ，服务器设备3和第（n + 1）个用户终端2 n + 1 。代表用户终端2 p 使用第（n + 1）个用户终端2 n + 1 的公共密钥和用于标识（n + 1）-的信息。用户终端2 n + 1 通过无证书加密中的预定加密功能对密钥信息进行加密以获得密文。当第（n + 1）个用户终端2 n + 1 n + 1 。 >已添加。第（n + 1）个用户终端2 n + 1 为第（n + 1）个用户终端2 n + 1 使用完整的密钥，用于识别第（n + 1）个用户终端2 n + 1 的信息，该信息具有预定的解密功能，以获取密钥信息。
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