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Decomposition of symmetric matrix–vector product over GF(2 m )
Author(s): Jeng-Shyang Pan, Chun-Sheng Yang, Chiou-Yng Lee
Source: Electronics Letters, Volume 53, Issue 24, November 2017, p. 1568 - 1570
Type: Article
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Toeplitz matrix–vector product (TMVP) decomposition is an important approach for designing and implementing subquadratic multiplier. In this Letter, a symmetric matrix (SM), which is the sum of a symmetric TM and Hankel matrix, is proposed. Applying the symmetry property, 2-way, 3-way and n-way splitting methods of SMVP is presented. On the basis of 2-way splitting method, the recursive formula of SMVP is presented. Using the two cases n = 4 and 8, the SMVP decomposition approach has less space complexity than 2-way TMVP, TMVP block recombination and symmetric TMVP for even-type Gaussian normal basis multiplication.

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