| With the development and popularization of computer technology, computernetwork provides great convenience for people, which has changed people·s ways ofstudy and life. Computer network has penetrated into some very important areas, soeven a small mistake may cause big social problems. Internet security issues havecaused people·s great attention, and internet security is becoming more and moreimportant.Higher education self-study examination is a higher national educationexamination conducted for the self-study people who want to get a degree. The maintask of Tianjin Examination Authority is admissions and examination, and its businessscope covers hundreds of thousands of kinds of exams in Tianjin, so its requirementsfor information security is particularly important, for that a very simple data error maycause great inconvenience and bad impact to students. This paper take the informationproject of Tianjin Examination Authority as the example, analyzing its informationsafety and improving its process, including data encryption, session security, redesignof database security and other aspects. It will help enhance the safety factor of theinformation system, and protect interests of candidates. This paper redesigns the linkof identity authentication in the aspect of data security. For the examinee system, itreads the "salt" value from the database, stirringμ with the password candidates input.And then it accomplishes encrypted transmission through MD5encryption, and thenaccomplishes a second encryption and searches for a match to ensure the safety of thelogin. For the county system, USB Key should be unified used to identify certification,and candidates can log on the system only in the case that password and key areunified. In database security, this paper designs automatic backup of database andsolutions of SQL injection.All in all, reasonable safety design can ensure stable operation of theinformation security system, and protect the interests of the candidates. |
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