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ISO/IEC 18033-1:2005

Information technology -- Security techniques -- Encryption algorithms -- Part 1: General

This standard has been reviewed and then confirmed in 2011 
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ISO standards are reviewed every five years


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ISO/IEC 18033 specifies encryption systems (ciphers) for the purpose of data confidentiality.

ISO/IEC 18033-1:2005 specifies:

  • terms and definitions used throughout ISO/IEC 18033;
  • the purpose of encryption, the differences between symmetric and asymmetric ciphers, and the key management problems associated with the use of ciphers;
  • the uses and properties of encryption;
  • criteria for the inclusion of encryption algorithms in ISO/IEC 18033.


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