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| PDF Title : | Cryptography and Network Security |
|---|---|
| Book Edition : | 6th Edition |
| Total Page : | 758 Pages |
| Author: | William Stallings |
| PDF Size : | 11.6 MB |
| Language : | English |
| Source : | williamstallings.com |
| PDF Link : | Available |
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Cryptography and Network Security, 6th Edition
Database environments used in cloud computing can vary significantly. Some providers a multi-instance model, which provides a unique DBMS running on a virtual machine instance for each cloud subscriber. This gives the subscriber complete control over role definition, authorization, and other istrative tasks related to security.
Other providers a multi-tenant model, which provides a predefined environment for the cloud subscriber that is shared with other tenants, typically through tagging data with a subscriber identifier. Tagging gives the appearance of exclusive use of the instance but relies on the to establish and maintain a sound secure database environment.
Data must be secured while at rest, in transit, and in use, and access to the data must be controlled. The client can employ encryption to protect data in transit, though this involves key management responsibilities for the . The client can enforce access control techniques but, again, the is involved to some extent depending on the service model used