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    Hash Pile Ups: Using Collisions to Identify Unknown Hash Functions

    Tobin, R. Joshua and Malone, David (2012) Hash Pile Ups: Using Collisions to Identify Unknown Hash Functions. In: 7th International Conference on Risk and Security of Internet and Systems (CRiSIS) 2012. IEEE, pp. 1-6. ISBN 978-1-4673-3087-9

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    Hash functions are often used to consistently assign objects to particular resources, for example to load balancing in networks. These functions can be randomly selected from a family, to prevent attackers generating many colliding objects, which usually results in poor performance.We describe a number of attacks allowing us to identify which hash function from a family is being used by observing a relatively small number of collisions. This knowledge can then be used to generate a large number of colliding inputs. In particular we detail attacks against small families of hashes, Pearson-like hash functions and linear hashes, such as the Toeplitz hash used in Microsoft’s Receive Side Scaling.

    Item Type: Book Section
    Additional Information: This is the postprint version of the paper, which is available at DOI: 10.1109/CRISIS.2012.6378946 . This work was supported by Science Foundation Ireland grant 08/SRC/I1403 and 07/SK/I1216a.
    Keywords: Has piles; computer network security; cryptography; resource allocation; statistical analysis;
    Academic Unit: Faculty of Science and Engineering > Research Institutes > Hamilton Institute
    Item ID: 6011
    Identification Number:
    Depositing User: Dr. David Malone
    Date Deposited: 09 Apr 2015 14:13
    Publisher: IEEE
    Refereed: Yes
    Funders: Science Foundation Ireland (SFI)
    Use Licence: This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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