Information processing method and device based on block chain
An information processing method and block chain technology, applied in the direction of electrical digital data processing, computer security devices, instruments, etc., can solve the problems of restricting the application of block chain technology and non-tampering
Pending Publication Date: 2021-06-08
LENOVO (BEIJING) LTD
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[0003] Due to the characteristics of decentralization and non-tampering, the blockchain is especially suitable for storing some important information, but the information on the blockchain is often recorded in each node and shared by users on the blockchain, which limits the block Application of chain technology in storing sensitive information
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[0024] In order to make the purpose, features, and advantages of the application more obvious and understandable, the technical solutions in the embodiments of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.
[0025] In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present appl...
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The invention discloses an information processing method and device based on a block chain, and the method comprises the steps: encrypting sensitive information, storing the encrypted sensitive information in the block chain, and decrypting the sensitive information only through a specified node; when a user accesses the sensitive information, determining whether the user has the permission to access the sensitive information or not through permission verification; if yes, obtaining decrypted sensitive information from a specified node and returned to the user, and if not, returning error information or obtaining encrypted information from other nodes and returning theencrypted information to the user; in addition, the access of the user to access the sensitive information is recorded and stored in the block chain. Thus, the encrypted sensitive information can be subjected to security sharing and whole-course tracking management by using the characteristics that the block chain data is non-tampering and traceable, an authorized user can directly obtain plaintext information of the sensitive information through the node of the block chain, and illegal access can be tracked and traced.
Description
technical field [0001] The present application relates to the field of information processing, in particular to a block chain-based information processing method and device. Background technique [0002] With the increasing digitization of various information and the continuous development of Internet technology, the dissemination and sharing of various information is becoming easier and easier. In the process of disseminating and sharing information, how to ensure the information security of sensitive information such as personal privacy and national security has become an increasingly prominent issue. [0003] Due to the characteristics of decentralization and non-tampering, the blockchain is especially suitable for storing some important information, but the information on the blockchain is often recorded in each node and shared by users on the blockchain, which limits the block The application of blockchain technology in storing sensitive information. Contents of the ...
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IPC IPC(8): G06F21/62G06F21/44
CPCG06F21/6227G06F21/6245G06F21/44G06F2221/2107
Inventor 陈飞飞张婉璐
Owner LENOVO (BEIJING) LTD