6.8. Summary of Database Security
This chapter has addressed three aspects of security for database management systems: confidentiality and integrity problems specific to database applications, the inference problem for statistical databases, and problems of including users and data of different sensitivity levels in one database.
Both confidentiality and integrity are important to users of databases. Confidentiality can be broken by indirect disclosure of a negative result or of the bounds of a value. Integrity of the entire database is a responsibility of the DBMS software; this problem is handled by most major commercial systems through backups, redundancy, change logs, and two-step updates. Integrity of an individual element of the database ...
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