Multi-keyword ciphertext storage and retrieval method and system based on word vectors
A word vector and ciphertext technology, applied in the field of ciphertext retrieval, can solve problems such as inability to fully and directly mine the semantic relationship of keywords, the reduction of retrieval accuracy, and the drift of query semantics
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0050] In order to make the object, principle, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.
[0051] The system model of this program is as follows figure 1 As shown, the cloud service is divided into three entities according to different functions: data owner, cloud server and data user. This program includes the following steps, such as figure 2 Shown:
[0052] Step 1: Generate a secret key, SK←setup(1 n ): Given a security parameter n, where n≥10, the preferred value range is [50,200], the algorithm outputs the encrypted index key SK.
[0053] Step 2: Generate ciphertext document set and ciphertext index, (I,C)←Geninder(F,SK): Input plaintext document set F and encryption key SK, the algorithm can use plaintext document set F to generate its corresponding index Set I', and use the encryption key to encr...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com