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A method for encrypting storage and retrieval of time field of building structure test data

A technology of test data and time field, applied in digital data information retrieval, digital data protection, electronic digital data processing and other directions, can solve problems such as large calculation pressure, achieve small calculation amount, simplify retrieval time and retrieval process, simplify complex degree of effect

Active Publication Date: 2019-02-12
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of encryption method needs to take into account both ciphertext retrievability and ciphertext recovery. At the same time, in order to ensure the security performance of encryption, it is usually necessary to design a complex encryption process.
For building structure tests, the local host needs to receive a large amount of data in real time and store them in real time after encryption. An overly complex encryption algorithm will bring great computing pressure to the local host.

Method used

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  • A method for encrypting storage and retrieval of time field of building structure test data
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  • A method for encrypting storage and retrieval of time field of building structure test data

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Embodiment Construction

[0054] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0055] Such as figure 1 As shown, the reception encryption and storage process of the embodiment of the present invention are as follows:

[0056] First of all, the structural test data is received in real time. Here, various collectors are needed to collect the field data in real time, and the data is received and analyzed by the host computer. Each piece of data parsed includes the following fields: collector number, sampling value, sampling unit, and sampling time. Before storing the structural test data in the database, each field of the collected data needs to be encrypted. Different encryption methods are used for time fields and non-time fields. For non-time fields, AES encryption algorithm is used for encryption. For time fields, the encryption method is as follows: figure 2 shown. The encryptio...

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Abstract

The invention discloses a method for encrypting storage and retrieval of time field of building structure test data. The method comprises an encryption process of collecting the real-time data and receiving and analyzing to obtain the collector number, sampling value, sampling unit and sampling time; converting the sampling time into Unix timestamp, and encrypting the Unix timestamp by AES and retrievable encryption, and encrypting the other data by AES respectively, and storing all the data in the relational database; a retrieval process of respectively converting the start and end times of the time retrieval conditions into Unix timestamps, retrievably encrypting the Unix timestamps, and taking the two encrypted results as the lower bound and the upper bound of the fields for retrieval;decrypting the data in the retrieval record by AES, and forming the original data together to complete the retrieval. The method of the invention integrates the ciphertext obtained by two encryption methods and is respectively used for time retrieval and time decryption of encrypted data, which can ensure the safety of time field and the retrievability of time field.

Description

technical field [0001] The invention relates to a method for encrypted retrieval of architectural data, in particular to a method for encrypted storage and retrieval of time fields of architectural structure test data. Background technique [0002] Building structure test is an important link in the process of building structure design, construction and research. Building structure test can detect whether the structure design is safe and reliable. The building structure test uses various collectors to collect field data, and the collected results are received and stored by the host computer provided by each manufacturer. With the rapid development of cloud computing, many users choose to store data in the cloud to reduce storage costs. Therefore, for some structural experiments with high data security requirements, it is necessary to encrypt the collected data and then store it in the cloud database. Since the traditional encryption method is not retrievable, that is, the c...

Claims

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Application Information

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IPC IPC(8): G06F21/62G06F16/2455
CPCG06F21/6227
Inventor 王琦陈积明史治国
Owner ZHEJIANG UNIV
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