ISO/IEC 18033-3:2005
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
View Superseded by
Information technology Security techniques Encryption algorithms Part 3: Block ciphers
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05-10-2018
15-07-2005
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ISO/IEC 18033 specifies encryption systems (ciphers) for the purpose of data confidentiality.
ISO/IEC 18033-3:2005 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 18033-3:2005 specifies the following algorithms.
- 64-bit block ciphers: TDEA, MISTY1, CAST-128.
- 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 is 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.
| DocumentType |
Standard
|
| Pages |
71
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
|
| SupersededBy |
| Standards | Relationship |
| AS/NZS ISO/IEC 18033.3:2006 | Identical |
| INCITS/ISO/IEC 15444-8:2007[R2019] | Information technology - JPEG 2000 image coding system: Secure JPEG 2000<br> |
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