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Homepage>BS Standards>35 INFORMATION TECHNOLOGY. OFFICE MACHINES>35.030 IT Security>BS ISO/IEC 18033-3:2010+A1:2021 Information technology. Security techniques. Encryption algorithms Block ciphers
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BS ISO/IEC 18033-3:2010+A1:2021 Information technology. Security techniques. Encryption algorithms Block ciphers

BS ISO/IEC 18033-3:2010+A1:2021

Information technology. Security techniques. Encryption algorithms Block ciphers

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Standard number:BS ISO/IEC 18033-3:2010+A1:2021
Pages:90
Released:2021-07-07
ISBN:978 0 539 15007 0
Status:Standard
DESCRIPTION

BS ISO/IEC 18033-3:2010+A1:2021


This standard BS ISO/IEC 18033-3:2010+A1:2021 Information technology. Security techniques. Encryption algorithms is classified in these ICS categories:
  • 35.030 IT Security

This part of ISO/IEC 18033 specifies block ciphers. A block cipher maps blocks of n bits to blocks of n bits, under the control of a key of k bits. A total of A1_starteightA1_end different block ciphers are defined. They are categorized in Table 1.

A1_start

Table 1 Block ciphers specified

Block length Algorithm name (see #) Key length
64 bits TDEA (4.2) 128 or 192 bits
MISTY (4.3) 128 bits
CAST-128 (4.4)
HIGHT (4.5)
128 bits AES (5.2) 128, 192 or 256 bits
Camellia (5.3)
SEED (5.4) 128 bits
SM4 (5.5)

A1_end

The algorithms specified in this part of ISO/IEC 18033 have been assigned object identifiers in accordance with ISO/IEC 9834. The list of assigned object identifiers is given in Annex B. Any changes to the specification of the algorithms resulting in a change of functional behaviour will result in a change of the object identifier assigned to the algorithm.