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Key sharing method, secret key generating method, common key generating method and cryptographic communication method in ID-NIKS cryptosystem
Key sharing method, secret key generating method, common key generating method and cryptographic communication method in ID-NIKS cryptosystem
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机译:ID-NIKS密码系统中的密钥共享方法,秘密密钥生成方法,公共密钥生成方法和密码通信方法
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摘要
Mapping is carried out at a point on an elliptic curve to be utilized for elliptic encryption based on identity information (ID information) of each entity and a mapping value is set to be a public key of the entity. By using the mapping value and secret information, a secret key of each entity is generated. The entity generates a common key to be used for an encrypting process and a decrypting process by utilizing the self-secret key and the public key to be the mapping value obtained by mapping at a point on the elliptic curve based on ID information of a communication participate. In this case, pairing on the elliptic curve is utilized.
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