Browse Definitions :
Definition

column-level encryption

Contributor(s): Stan Gibilisco

Column-level encryption is a method of database encryption in which the information in every cell (or data field) in a particular column has the same password for access, reading, and writing purposes. 

Column-level encryption is not the only method for database encryption. Other methods include:

  • Row-level encryption, in which each row has a unique password for all of its cells.
  • Cell-level encryption, in which each individual cell has its own unique password.
  • Tablespace-level encryption, in which each tablespace has a unique password for all of its contents.
  • File-level encryption, in which individual files are encrypted in blocks according to predetermined criteria.

Advantages of column-level encryption, relative to other encryption methods, include widespread use (so most database administrators are familiar with it), and the ability to simultaneously protect columns in databases that exist in different platforms. Disadvantages include reduced or limited available query optimization functions, increased data file size, increased demands on system resources, and an increased number of potential security holes (because more frequent changes must be made on a continuing basis).

This was last updated in March 2013

Continue Reading About column-level encryption

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchCompliance

  • PCI DSS (Payment Card Industry Data Security Standard)

    The Payment Card Industry Data Security Standard (PCI DSS) is a widely accepted set of policies and procedures intended to ...

  • risk management

    Risk management is the process of identifying, assessing and controlling threats to an organization's capital and earnings.

  • compliance framework

    A compliance framework is a structured set of guidelines that details an organization's processes for maintaining accordance with...

SearchSecurity

  • DNS over HTTPS (DoH)

    DNS over HTTPS (DoH) is a relatively new protocol that encrypts domain name system traffic by passing DNS queries through a ...

  • integrated risk management (IRM)

    Integrated risk management (IRM) is an approach to risk management that uses a set of practices and processes to improve an ...

  • MITRE ATT&CK framework

    The MITRE ATT&CK (pronounced 'miter attack') framework is a free, globally accessible service that provides comprehensive and ...

SearchHealthIT

  • telemedicine (telehealth)

    Telemedicine is the remote delivery of healthcare services, such as health assessments or consultations, over the ...

  • Project Nightingale

    Project Nightingale is a controversial partnership between Google and Ascension, the second largest health system in the United ...

  • medical practice management (MPM) software

    Medical practice management (MPM) software is a collection of computerized services used by healthcare professionals and ...

SearchDisasterRecovery

SearchStorage

  • M.2 SSD

    An M.2 SSD is a solid-state drive (SSD) that conforms to a computer industry specification and is used in internally mounted ...

  • kilobyte (KB or Kbyte)

    A kilobyte (KB or Kbyte) is a unit of measurement for computer memory or data storage used by mathematics and computer science ...

  • virtual memory

    Virtual memory is a memory management capability of an operating system (OS) that uses hardware and software to allow a computer ...

Close