Difference between revisions of "Ponic"

From The ECRYPT Hash Function Website
(The algorithm)
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* Website:   
 
* Website:   
 
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* Specification: [http://ehash.iaik.tugraz.at/uploads/3/3c/PonicSpecification.pdf local link]
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* Source: [http://ehash.iaik.tugraz.at/uploads/6/61/PonicReference.zip submitted to NIST], [http://ehash.iaik.tugraz.at/uploads/2/2e/Ponic-1280.zip improved version]
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<bibtex>
 
<bibtex>
@misc{shaSN08,
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@misc{sha3Schmidt08,
 
   author    = {Peter Schmidt-Nielsen},
 
   author    = {Peter Schmidt-Nielsen},
 
   title    = {The Ponic Hash Function},
 
   title    = {The Ponic Hash Function},
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}
 
}
 
</bibtex>
 
</bibtex>
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== Cryptanalysis ==
 
== Cryptanalysis ==
  
* None yet
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{| border="1" cellpadding="4" cellspacing="0" class="wikitable" style="text-align:center"                 
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|- style="background:#efefef;"                 
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|  Type of Analysis || Hash Function Part || Hash Size (n) || Parameters/Variants || Compression Function Calls || Memory Requirements ||  Reference
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|-                                     
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|  style="background:yellow" | 2nd preimage || hash || 512 ||  || 2<sup>265</sup> || 2<sup>256</sup> || [http://131002.net/data/papers/ponic.pdf Naya-Plasencia]
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|-                                     
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|}                   
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A description of this table is given [http://ehash.iaik.tugraz.at/wiki/Cryptanalysis_Categories#Individual_Hash_Function_Tables here].
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<bibtex>
 +
@misc{ponicN08,
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  author    = {María Naya-Plasencia},
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  title    = {Second preimage attack on Ponic},
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  url = {http://131002.net/data/papers/ponic.pdf},
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  howpublished = {Available online},
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  year      = {2008},
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  abstract  = {Ponic is a candidate to the SHA-3 NIST competition. We present here a second preimage attack against the 512-bit version with time complexity $2^{265}$. The attack exploits the fact that the round function is invertible and it works for any number of rounds.},
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}
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</bibtex>

Latest revision as of 21:59, 29 December 2008

1 The algorithm


Peter Schmidt-Nielsen - The Ponic Hash Function

,2008
http://ehash.iaik.tugraz.at/uploads/3/3c/PonicSpecification.pdf
Bibtex
Author : Peter Schmidt-Nielsen
Title : The Ponic Hash Function
In : -
Address :
Date : 2008


2 Cryptanalysis

Type of Analysis Hash Function Part Hash Size (n) Parameters/Variants Compression Function Calls Memory Requirements Reference
2nd preimage hash 512 2265 2256 Naya-Plasencia

A description of this table is given here.


María Naya-Plasencia - Second preimage attack on Ponic

,2008
http://131002.net/data/papers/ponic.pdf
Bibtex
Author : María Naya-Plasencia
Title : Second preimage attack on Ponic
In : -
Address :
Date : 2008