[WEBINAR] The New Normal: Dealing with the Reality of an Unsecure World

Database Encryption and Decryption

Definition - What does Database Encryption and Decryption mean?

Database encryption is the process of converting data, within a database, in plain text format into a meaningless cipher text by means of a suitable algorithm.

Database decryption is converting the meaningless cipher text into the original information using keys generated by the encryption algorithms.

Database encryption can be provided at the file or column level.

Techopedia explains Database Encryption and Decryption

Encryption of a database is costly and requires more storage space than the original data. The steps in encrypting a database are:

  1. Determine the criticality of the need for encryption
  2. Determine what data needs to be encrypted
  3. Determine which algorithms best suit the encryption standard
  4. Determine how the keys will be managed

Numerous algorithms are used for encryption. These algorithms generate keys related to the encrypted data. These keys set a link between the encryption and decryption procedures. The encrypted data can be decrypted only by using these keys.

Different databases, such as SQL, Oracle, Access and DB2, have unique encryption and decryption methods.

Techopedia Deals

Connect with us

Techopedia on Linkedin
Techopedia on Linkedin
"Techopedia" on Twitter

Sign up for Techopedia's Free Newsletter!

Email Newsletter

Join thousands of others with our weekly newsletter

Free Whitepaper: The Path to Hybrid Cloud
Free Whitepaper: The Path to Hybrid Cloud:
The Path to Hybrid Cloud: Intelligent Bursting To Amazon Web Services & Microsoft Azure
Free E-Book: Public Cloud Guide
Free E-Book: Public Cloud Guide:
This white paper is for leaders of Operations, Engineering, or Infrastructure teams who are creating or executing an IT roadmap.
Free Tool: Virtual Health Monitor
Free Tool: Virtual Health Monitor:
Virtual Health Monitor is a free virtualization monitoring and reporting tool for VMware, Hyper-V, RHEV, and XenServer environments.
Free 30 Day Trial – Turbonomic
Free 30 Day Trial – Turbonomic:
Turbonomic delivers an autonomic platform where virtual and cloud environments self-manage in real-time to assure application performance.