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Information processing method and device

An information processing method and node technology, applied in the field of information security

Pending Publication Date: 2022-07-22
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Users can obtain the corresponding shared document information according to search keywords, search voice and other search marks. However, this file information processing mode will generate massive computing and storage costs.

Method used

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  • Information processing method and device
  • Information processing method and device
  • Information processing method and device

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Embodiment Construction

[0035] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. It should be understood, however, that these descriptions are exemplary only, and are not intended to limit the scope of the present disclosure. In the following detailed description, for convenience of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concepts of the present disclosure.

[0036] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the present disclosure. The terms "comprising", "comprising" and the like used herein indicate the presence of sta...

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Abstract

The invention provides an information processing method which can be applied to the field of information security and the technical field of information encryption. The information processing method comprises the following steps: processing a retrieval identifier corresponding to a shared file set by utilizing a preset algorithm, and generating initial index information associated with the shared file set; connecting the head node plaintext, the n constituent node ciphertexts and the tail node ciphertext according to a preset sequence to obtain an initial file chain table; according to an initial attribute information set corresponding to the initial access structure, encrypting a head node key by using a preset encryption algorithm to obtain a head node key ciphertext; updating a head node plaintext of the initial file chain table by using the head node key ciphertext to obtain a target file chain table; sending the target file chain table to a server; and sending a target private key for decrypting the key ciphertext of the head node to the information receiving end. The invention further provides an information processing device.

Description

technical field [0001] The present disclosure relates to the field of information security and information encryption technology, and in particular to an information processing method and device. Background technique [0002] With the rapid development of mobile Internet technology, people's demand for sharing and disseminating file information such as pictures and documents has become stronger and stronger. For application scenarios such as video-on-demand and online reading, existing network communication platforms usually use different access rights to users to encrypt each file information at the corresponding attribute level, so as to ensure the security of the shared document information. Users can obtain the corresponding shared document information according to the retrieval identifiers such as retrieval keywords and retrieval voices. However, this file information processing mode will generate massive computational overhead and storage overhead. SUMMARY OF THE INV...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/40G06F21/60
CPCH04L63/0435G06F21/602
Inventor 单博深姚远志李卫海俞能海
Owner UNIV OF SCI & TECH OF CHINA