Security Policies For Schema Less Or Dynamic Schema...

5.10 Authorization Two important challenges (Obijaju, 2015; Srinivas Nair, 2015; Urbanski, 2012; Kirkpatrick, 2013; Fidelis Cybersecurity, 2014). 5.10.1 Possibility: How to define security policies for schema-less or dynamic-schema database? 5.10.2 Performance: Availability versus access controls overhead, how to manage the cost of access control? Because of schema-less nature of NoSQL data models, fine-grained data access controls at the column or row level, as gave by RDBMS i.e. oracle and these features are not accessible in the recent NoSQL databases. Some of them employ a few kind of authorization if desired. Authorization setting of some of NoSQL database is allowed by all authenticators, which means essentially there is no authorization per database level and allow any action by any user (Obijaju, 2015; Srinivas Nair, 2015; Kirkpatrick, 2013; Fidelis Cybersecurity, 2014). Authorization information is mentioned in Table 6. Table 6. Authorization Detail in NoSQL Databases NoSQL Databases Granularity Explanation BigTable Column Family Using ACL Cassandra Column Family Using I Authorizer API HBase Column Family /Cell Group-based authorization Accumulo Cell using Visibility Field 5.10.3 Inference Control: Access control on data, especially in Column-Wide database. 5.10.4 Administration/access control management: How and where to grant database access. †¢ Local versus Global access policies and their possible conflicts. †¢ Centralized approach: single-point ofShow MoreRelatedDatabase Security28570 Words   |  115 Pages- 1 - Database Security *) GÃÅ"NTHER PERNUL Institut fà ¼r Angewandte Informatik und Informationssysteme Abteilung fà ¼r Information Engineering Università ¤t Wien Vienna, Austria 1. Introduction 1.1 The Relational Data Model Revisited 1.2 The Vocabulary of Security and Major DB Security Threats 2. 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