Reference number
ISO/IEC 18033-3:2010
© ISO 2025
International Standard
ISO/IEC 18033-3:2010
Information technology — Security techniques — Encryption algorithms — Part 3: Block ciphers
Edition 2
2010-12
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Published (Edition 2, 2010)
This publication was last reviewed and confirmed in 2020. Therefore this version remains current.

ISO/IEC 18033-3:2010

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CHF 199
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Abstract

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

ISO/IEC 18033-3:2010 specifies block ciphers. A block cipher is a symmetric encipherment system with the property that the encryption algorithm operates on a block of plaintext, i.e. a string of bits of a defined length, to yield a block of ciphertext.

ISO/IEC 18033-3:2010 specifies following algorithms:

  • 64-bit block ciphers: TDEA, MISTY1, CAST-128, HIGHT;
  • 128-bit block ciphers: AES, Camellia, SEED.

NOTE The primary purpose of encryption (or encipherment) techniques is to protect the confidentiality of stored or transmitted data. An encryption algorithm is applied to data (often called plaintext or cleartext) to yield encrypted data (or ciphertext); this process is known as encryption. The encryption algorithm needs to be designed so that the ciphertext yields no information about the plaintext except, perhaps, its length. Associated with every encryption algorithm is a corresponding decryption algorithm, which transforms ciphertext back into its original plaintext.

General information

  • Status
     : Published
    Publication date
     : 2010-12
    Stage
    : International Standard under systematic review [90.20]
  • Edition
     : 2
    Number of pages
     : 78
  • Technical Committee :
    ISO/IEC JTC 1/SC 27
    ICS :
    35.030 
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 Amendments

Amendments are issued when it is found that new material may need to be added to an existing standardization document. They may also include editorial or technical corrections to be applied to the existing document.

Amendment 1

SM4

Edition 2021

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Format
CHF 18
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Life cycle

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