Difference between revisions of "Dynamic SHA"
From The ECRYPT Hash Function Website
 (Added (2nd) preimage attacks)  | 
				m (Fixed eprint number)  | 
				||
| Line 31: | Line 31: | ||
| style="background:red" | collision|| hash || 512||  || 2<sup>24</sup> || - || [http://homes.esat.kuleuven.be/~sindeste/dsha.html Indesteege]  | | style="background:red" | collision|| hash || 512||  || 2<sup>24</sup> || - || [http://homes.esat.kuleuven.be/~sindeste/dsha.html Indesteege]  | ||
|-       | |-       | ||
| − | | style="background:orange" | 2nd preimage || hash || 224/256 ||  || 2<sup>216</sup> || - || [http://eprint.iacr.org/2009/  | + | | style="background:orange" | 2nd preimage || hash || 224/256 ||  || 2<sup>216</sup> || - || [http://eprint.iacr.org/2009/184.pdf Aumasson,Dunkelman,Indesteege,Preneel]  | 
|-     | |-     | ||
| − | | style="background:orange" | 2nd preimage || hash || 384/512 ||  || 2<sup>256</sup> || - || [http://eprint.iacr.org/2009/  | + | | style="background:orange" | 2nd preimage || hash || 384/512 ||  || 2<sup>256</sup> || - || [http://eprint.iacr.org/2009/184.pdf Aumasson,Dunkelman,Indesteege,Preneel]  | 
|-      | |-      | ||
| − | | style="background:orange" | preimage || hash || 224/256 ||  || 2<sup>225</sup> || - || [http://eprint.iacr.org/2009/  | + | | style="background:orange" | preimage || hash || 224/256 ||  || 2<sup>225</sup> || - || [http://eprint.iacr.org/2009/184.pdf Aumasson,Dunkelman,Indesteege,Preneel]  | 
|-      | |-      | ||
| − | | style="background:orange" | preimage || hash || 224/256 ||  || 2<sup>262</sup> || - || [http://eprint.iacr.org/2009/  | + | | style="background:orange" | preimage || hash || 224/256 ||  || 2<sup>262</sup> || - || [http://eprint.iacr.org/2009/184.pdf Aumasson,Dunkelman,Indesteege,Preneel]  | 
|-                          | |-                          | ||
|}                       | |}                       | ||
| Line 68: | Line 68: | ||
     author = {Jean-Philippe Aumasson and Orr Dunkelman and Sebastiaan Indesteege and Bart Preneel},  |      author = {Jean-Philippe Aumasson and Orr Dunkelman and Sebastiaan Indesteege and Bart Preneel},  | ||
     title = {Cryptanalysis of Dynamic SHA(2)},  |      title = {Cryptanalysis of Dynamic SHA(2)},  | ||
| − |      howpublished = {Cryptology ePrint Archive, Report 2009/  | + |      howpublished = {Cryptology ePrint Archive, Report 2009/184},  | 
     year = {2009},  |      year = {2009},  | ||
| − |      url = {http://eprint.iacr.org/2009/  | + |      url = {http://eprint.iacr.org/2009/184.pdf},  | 
     note = {\url{http://eprint.iacr.org/}},  |      note = {\url{http://eprint.iacr.org/}},  | ||
     abstract = {In this paper, we analyze the hash functions Dynamic SHA  |      abstract = {In this paper, we analyze the hash functions Dynamic SHA  | ||
Revision as of 11:50, 3 May 2009
1 The algorithm
- Author(s): Zijie Xu
 - NIST submission package: DyamicSHA.zip
 
Zijie Xu - Dynamic SHA
- ,2008
 - http://ehash.iaik.tugraz.at/uploads/e/e2/DyamicSHA.pdf
BibtexAuthor : Zijie Xu
Title : Dynamic SHA
In : -
Address :
Date : 2008 
2 Cryptanalysis
| Type of Analysis | Hash Function Part | Hash Size (n) | Parameters/Variants | Compression Function Calls | Memory Requirements | Reference | 
| length-extension | hash | all | - | - | Klima | |
| collision | hash | 256 | 223 | - | Indesteege | |
| collision | hash | 512 | 224 | - | Indesteege | |
| 2nd preimage | hash | 224/256 | 2216 | - | Aumasson,Dunkelman,Indesteege,Preneel | |
| 2nd preimage | hash | 384/512 | 2256 | - | Aumasson,Dunkelman,Indesteege,Preneel | |
| preimage | hash | 224/256 | 2225 | - | Aumasson,Dunkelman,Indesteege,Preneel | |
| preimage | hash | 224/256 | 2262 | - | Aumasson,Dunkelman,Indesteege,Preneel | 
A description of this table is given here.
Vlastimil Klima - Dynamic SHA is vulnerable to generic attacks
- ,2008
 - http://ehash.iaik.tugraz.at/uploads/e/e7/Dynamic-sha_length-extension.txt
BibtexAuthor : Vlastimil Klima
Title : Dynamic SHA is vulnerable to generic attacks
In : -
Address :
Date : 2008 
Sebastiaan Indesteege - Practical Collisions for Dynamic SHA
- ,2009
 - http://homes.esat.kuleuven.be/~sindeste/dsha.html
BibtexAuthor : Sebastiaan Indesteege
Title : Practical Collisions for Dynamic SHA
In : -
Address :
Date : 2009 
Jean-Philippe Aumasson, Orr Dunkelman, Sebastiaan Indesteege, Bart Preneel - Cryptanalysis of Dynamic SHA(2)
- ,2009
 - http://eprint.iacr.org/2009/184.pdf
BibtexAuthor : Jean-Philippe Aumasson, Orr Dunkelman, Sebastiaan Indesteege, Bart Preneel
Title : Cryptanalysis of Dynamic SHA(2)
In : -
Address :
Date : 2009 
2.1 Archive
Sebastiaan Indesteege - Cryptanalysis of Dynamic SHA