Re: Truncated multiplication (is it secure???)


This gives the matrix

| 1 0 0 |
| 0 N/M 0 |
| sh*N/M^2 -midA*N/M N^2/M^2 |

Now (idA, N/M, (idA*sh-midA*M)*N/M^2) is a linear combination of the
column vectors of this matrix.


I followed you til here, and then you lost me... Would you please
mind showing me the matrix used to transform the matrix that way? I
mean there should be a way to add or multiply the rows of the original
matrix to get that row, right?

.

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