African Journal of
Mathematics and Computer Science Research

  • Abbreviation: Afr. J. Math. Comput. Sci. Res.
  • Language: English
  • ISSN: 2006-9731
  • DOI: 10.5897/AJMCSR
  • Start Year: 2008
  • Published Articles: 254

Full Length Research Paper

The data encryption standard thirty four years later: An overview

    Kenekayoro Patrick T.
Niger Delta University, Department of Mathematics/Computer Science, Wilberforce Island, P. M. B. 071 Amassoma, Bayelsa State, Nigeria.
Email: [email protected]

  •  Accepted: 27 August 2010
  •  Published: 21 October 2010




The data encryption standard was the first encryption system to meet the National Institute of Standards and Technology’s requirements for an encryption system, and also the first standardized encryption system. It was standardized in 1977 and since then, it has been subject to criticisms. The successor to the Data Encryption Standard, Advanced Encryption Standard has been developed and is used today but the Data Encryption Standard is still used today in industries. This paper overviewed the Data Encryption Standard; criticisms faced and concluded if it is still secure enough to protect our confidential information based on published cryptanalysis on this encryption system.

Key words: Block ciphers, TDEA, DES, AES, cryptanalysis, encryption, decryption, cryptography.