Transparent Data Encryption

Abstract: A method and system for transparently encrypting (and decrypting) sensitive data stored in a directory (or other database) is provided. Sensitive data, a password for example, may be required by a client in a distributed data processing environment. When the database entry is created, the sensitive data received from a user, or more generally, a client, may be encrypted, and saved in the directory entry in encrypted form. Encryption of sensitive data may be performed in accordance with a predetermined set of policies. When the sensitive information is needed, it may be selectively delivered in encrypted or unencrypted form based on a policy in the set. Policies may include criteria external to the database, and interfaced to the database via a policy engine.

Abstract: The present study deals with Transparent Data Encryption which is a technology used to solve the problems of security of data. Transparent Data Encryption means encrypting databases on hard disk and on any backup media. Present day global business environment presents numerous security threats and compliance challenges. To protect against data thefts and frauds we require security solutions that are transparent by design. Transparent Data Encryption provides transparent, standards-based security that protects data on the network, on disk and on backup media. It is easy and effective protection of stored data by transparently encrypting data. Transparent Data Encryption can be used to provide high levels of security to columns, table and tablespace that is database files stored on hard drives or floppy disks or CD's, and other information that requires protection. It is the technology used by Microsoft SQL Server 2008 to encrypt database contents. The term encryption means the piece of information encoded in such a way that it can only be decoded read and understood by people for whom the information is intended. The study deals with ways to create Master Key, creation of certificate protected by the master key, creation of database master key and protection by the certificate and ways to set the database to use encryption in Microsoft SQL Server 2008.

Abstract: The present study deals with Transparent Data Encryption which is a technology used to solve the problems of security of data. Transparent Data Encryption means encrypting databases on hard disk and on any backup media. Present day global business environment presents numerous security threats and compliance challenges. To protect against data thefts and frauds we require security solutions that are transparent by design.

Abstract: In past few years, cloud computing has grown and more successful due to its capability of providing to users on-demand, reliable, flexible, and low-cost services. With the number of cloud applications is increasing, the data security becomes an major concern in the cloud. The open source software Hadoop distributed file system (HDFS) is used to build cloud storage system which will allow to store large data with high throughput and fault tolerance. Originally the Hadoop system was designed without any security model, so security is the major weakness of Hadoop in its development. As far as storage of sensitive data is concerned in the Hadoop, data security will be an important issue. With the increase in the acceptance of Hadoop, there is also raising trend in incorporating more and more security features in enterprises. Also demand of encryption of the data is increased to secure the confidential data and to prevent privacy rule violation. Over the period of recent years efforts have been made in order to obtain some level of security in Hadoop such as Kerberos and Transparent Data Encryption(TDE) for Hadoop. In this paper, efforts have been made to describe present security in Hadoop Distributed File System.