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Permission Information Management System, User Terminal, Right-Holder Terminal, Permission Information Management Method, and Permission Information Management Program
Permission Information Management System, User Terminal, Right-Holder Terminal, Permission Information Management Method, and Permission Information Management Program
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机译:权限信息管理系统,用户终端,右手终端,权限信息管理方法和权限信息管理程序
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摘要
A user terminal generates a first key pair and a second key pair, transmits a permission request including a public encryption key of the second key pair after electronically signing the permission request with a secret encryption key, and acquires, from permission information transmitted from a right-holder terminal, a content decryption key by using a secret decryption key of the second key pair and uses the content. The right-holder terminal stores a third key pair and the content decryption key, verifies the permission request received, and encrypts the content decryption key by using the public encryption key of the second key pair included in the permission request and transmits the permission information including the encrypted content decryption key after electronically signing the permission information with a secret encryption key of the third key pair. The permission request and the permission information are transmitted and received via a blockchain.
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