DHA-256

1 Specification

• digest size: 256 bits
• max. message length: < 2⁶⁴ bits
• compression function: 512-bit message block, 256-bit chaining variable

Jesang Lee, Donghoon Chang, Hyun Kim, Eunjin Lee, Deukjo Hong - A New 256-bit Hash Function DHA-256 - Enhancing the Security of SHA-256

,2005

http://csrc.nist.gov/groups/ST/hash/documents/ChangD_DHA256.pdf
Bibtex

Author : Jesang Lee, Donghoon Chang, Hyun Kim, Eunjin Lee, Deukjo Hong
Title : A New 256-bit Hash Function DHA-256 - Enhancing the Security of SHA-256
In : -
Address :
Date : 2005

2 Cryptanalysis

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2.2 Generic Attacks

• Generic Attacks on the Merkle-Damgaard Construction

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2.6 Others

@misc{cryptoeprint:2005:398,

   author = {IAIK Krypto Group},
   title = {Preliminary Analysis of DHA-256},
   howpublished = {Cryptology ePrint Archive, Report 2005/398},
   year = {2005},
   abstract = {DHA-256 was presented at the Cryptographic Hash Workshop hosted by NIST in November 2005. DHA-256 (Double Hash Algorithm) was proposed to enhance the security of SHA-256. We present a preliminary analysis of the message expansion and give an alternative 9-step local collision for DHA-256. },
   note = {\url{http://eprint.iacr.org/}},

}