Problem 46636. Montgomery Multiplication

Created by David Hill

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Multiply all elements of an input matrix (A) modulo N, given all elements are less than R (2^number of bits). Where gcd(R,N)=1 and N<R. Output the final result, P (in normal form) and all intermediate products (p) in Montgomery form (first product is just first element of matrix (A)*R modulo N).

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Last Solution submitted on Oct 12, 2025

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Dyuman Joshi on 1 Aug 2022

David, can you explain what do you mean by intermediate products?

cokakola on 11 Nov 2022

I had to create the needed elements of p, they did not exist es intermediate results. Well, they exist, but not in the right form.

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Problem 46636. Montgomery Multiplication

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Problem 46636. Montgomery Multiplication

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Last 200 Solutions

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Problem Recent Solvers4

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