Method used for achieving safe information preservation through combining, encrypting and storing field information in special field

Abstract

The invention relates to a method used for achieving safe information preservation through combining, encrypting and storing field information in special field. The invention relates to a practical application of an information safety technology in a software system in a public security traffic industry. The method comprises the following steps: combining main fields in a key table, encrypting the combined main fields into a character string by using a DES (data encryption standard) and storing the character string into one special field; when record information changes, regenerating an encrypted character string by virtue of an information system, thereby guaranteeing the consistency of data information; and when a data base DBA (data base administrator) user modifies information record on a backstage and because the encryption field can not be modified, carrying out comparison to discover the modified record and recovery data in time by virtue of the information system. The information system designed by the method can prevent the legal or illegal database DBA user in a data base from directly modifying the key field data of the table, thus the safety performance of the information system is greatly improved, thereby achieving the effect that the data can be seen in time but can not be modified.

Description

technical field [0001] The invention relates to the practical application of information security technology in the software system of the public security traffic control industry. The main fields in the key table are combined and encrypted with DES into a character string and stored in a specific field. When the record information changes, the information system The encrypted string will be regenerated to ensure the consistency of data information. For example, when the database DBA user modifies the information record in the background, since the encrypted field cannot be modified, the information system will find the modified record after comparison and can restore the data in time. The information system designed by this method can prevent legal or illegal database DBA users from directly modifying the key field data of the table in the database, which greatly improves the security performance of the information system and achieves the ability to see and modify data in time...

AI Technical Summary

Problems solved by technology

[0011] 2.1 Leakage: Information or data is disclosed to unauthorized persons;

[0012] 2.2 Fraud: Company information is altered in an unauthorized manner;

[0013] 2.3 Destruction: making the company's resources unusable or unavailable to authorized users;

[0014] 2.4 Tampering: Company resources are misused by unauthorized persons

[0016] 3. Vulnerability of the system Vulnerability comes from the security loopholes of the system. Due to the limitations of human beings’ familiarity with the laws of nature and their application capabilities, there are still many imperfections in the current electronic information systems that provide social applications. There are various manifestations of vulnerability, among which how to prevent database DBA users is a headache