Inner Product Computation

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lu56...@gmail.com

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Feb 15, 2022, 5:21:33 PM2/15/22

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Hi,

I want to implement an application that includes the computation of some inner products of two secret shared vectors. Besides multiplying the pairwise elements in parallel, may I know if SCALE-MAMBA has more optimized protocol for it?

Thanks!

Donghang.

Nigel Smart

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Feb 16, 2022, 4:08:11 AM2/16/22

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In Mamba you would need to use vectorized instructions.
- See the vectorized bits in the manual.

In the Rust variant you can multiply two vectors or matrices component
wise in parallel, and then form the sum via a loop. As sums are virtually
for free the expensive bit is the thing done in parallel

Nigel

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