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Toeplitz Hash Algorithm

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Toeplitz Hash
General
Related toReceive Side Scaling

The Toeplitz Hash Algorithm describes hash functions that compute hash values through matrix multiplication of the key with a suitable Toeplitz matrix.[1] The Toeplitz Hash Algorithm is used in many network interface controllers for receive side scaling.[2][3]

As an example, with the Toeplitz matrix the key results in a hash as follows:

where the entries are bits and all operations are modulo 2. In implementations the highly redundant matrix is not necessarily explicitly stored.

References

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  1. ^ Krawczyk, Hugo (1995). New Hash Functions for Message Authentication. EUROCRYPT '95. Lecture Notes in Computer Science. Vol. 921. pp. 301–310. doi:10.1007/3-540-49264-X_24. ISSN 0302-9743.
  2. ^ "Scaling in the Linux Networking Stack". Archived from the original on 22 May 2014. Retrieved 2014-05-22.
  3. ^ "Scalable Networking: Eliminating the Receive Processing Bottleneck—Introducing RSS". Archived from the original on 22 May 2014. Retrieved 2014-05-22.