Standard Details
EME2-AES and XCB-AES wide-block encryption with associated data (EAD) modes of the NIST AES block cipher, providing usage guidelines and test vectors, are described. A wide-block encryption algorithm behaves as a single block cipher with a large plaintext input and ciphertext output, but uses a narrow block cipher [in this case Advanced Encryption Standard (AES)] internally. These encryption modes are oriented toward random access storage devices that do not provide authentication, but need to reduce the granularity of a potential attack.
| Sponsor Committee | |
| Status |
Active
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| Board Approval |
2010-09-30
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| History |
Published Date:2011-03-08
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Additional Resources Details
| PAR |
Working Group Details
| Working Group |
SIS-WG - Security in Storage Working Group
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| Working Group Chair |
Walter Hubis
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| Sponsor Committee | |
| Society | |
| IEEE Program Manager | |
| Existing Standards |
This standard specifies cryptographic transform and key archival methods for protection of data in sector-level storage devices.
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This standard specifies cryptographic and data authentication procedures for storage devices that support length-expansion, such as tape drives. Such procedures include the following cryptographic modes of operation for the AES block cipher: CCM, GCM, CBC-HMAC, and XTS-HMAC.
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Cryptographic transform for protection of data in sector-level storage devices is specified in this standard.
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Cryptographic and data authentication procedures for storage devices that support length expansion, such as tape drives, are specified. Such procedures include the following cryptographic modes of operation for the AES block cipher: CCM, GCM, CBC-HMAC, and XTS-HMAC.
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