DHA-256 - Revision history

Fmendel: /* Others */

2008-11-03T10:34:53Z

‎Others

Fmendel: /* Others */

2008-11-03T10:34:19Z

‎Others

Mschlaeffer at 09:20, 11 March 2008

2008-03-11T09:20:06Z

Fmendel: /* Specification */

2008-03-11T07:10:09Z

‎Specification

Mschlaeffer at 15:05, 10 March 2008

2008-03-10T15:05:56Z

Mschlaeffer at 15:05, 10 March 2008

2008-03-10T15:05:24Z

New page

== Specification ==



== Cryptanalysis ==

=== Best Known Results ===

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=== Generic Attacks ===
* [[GenericAttacksMerkleDamgaard| Generic Attacks on the Merkle-Damgaard Construction ]]

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=== Collision Attacks ===

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=== Second Preimage Attacks ===

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=== Preimage Attacks ===

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=== Others ===

@@ Line 45: / Line 45: @@
 === Others ===
 @misc{cryptoeprint:2005:398,
      author = {IAIK Krypto Group},
@@ Line 53: / Line 54: @@
      note = {\url{http://eprint.iacr.org/}},
+}

← Older revision		Revision as of 10:34, 3 November 2008
Line 45:		Line 45:

	=== Others ===		=== 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/}},
		+	}

@@ Line 4: / Line 4: @@
 * max. message length: < 2<sup>64</sup> bits
 * compression function: 512-bit message block, 256-bit chaining variable
 * Specification: http://csrc.nist.gov/groups/ST/hash/documents/ChangD_DHA256.pdf
 <bibtex>

@@ Line 1: / Line 1: @@
 == Specification ==
-<!--
+* digest size: 256 bits
 * max. message length: < 2<sup>64</sup> bits
-* compression function: 512-bit message block, 160-bit chaining variable
+* compression function: 512-bit message block, 256-bit chaining variable
 * Specification: http://csrc.nist.gov/groups/ST/hash/documents/ChangD_DHA256.pdf