Difference between revisions of "SHA-256/224"

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 === Collision Attacks ===
+<bibtex>
+@inproceedings{fseMendelPRR06,
+  author    = {Florian Mendel and Norbert Pramstaller and Christian Rechberger and Vincent Rijmen},
+  title     = {Analysis of Step-Reduced SHA-256},
+  pages     = {126-143},
+  url        = {http://dx.doi.org/10.1007/11799313_9},
+  booktitle = {FSE},
+  publisher = {Springer},
+  series    = {LNCS},
+  volume    = {4047},
+  year      = {2006},
+  isbn      = {3-540-36597-4},
+  abstract  = {This is the first article analyzing the security of
+SHA-256 against fast collision search which considers the recent
+attacks by Wang et al. We show the limits of applying techniques known
+ so far to SHA-256. Next we introduce a new type of perturbation vector
+ which circumvents the identified limits. This new technique is then
+applied to the unmodified SHA-256. Exploiting the combination of Boolean
+ functions and modular addition together with the newly developed technique
+ allows us to derive collision-producing characteristics for step-reduced
+ SHA-256, which was not possible before. Although our results do not threaten
+ the security of SHA-256, we show that the low probability of a single
+local collision may give rise to a false sense of security.},
+}
+</bibtex>
 <bibtex>

Revision as of 10:17, 11 March 2008