mirror of https://github.com/oxen-io/lokinet
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
35 lines
654 B
C
35 lines
654 B
C
#include "params.h"
|
|
#include "rq.h"
|
|
|
|
void
|
|
rq_mult(modq *h, const modq *f, const small *g)
|
|
{
|
|
modq fg[p + p - 1];
|
|
modq result;
|
|
int i, j;
|
|
|
|
for(i = 0; i < p; ++i)
|
|
{
|
|
result = 0;
|
|
for(j = 0; j <= i; ++j)
|
|
result = modq_plusproduct(result, f[j], g[i - j]);
|
|
fg[i] = result;
|
|
}
|
|
for(i = p; i < p + p - 1; ++i)
|
|
{
|
|
result = 0;
|
|
for(j = i - p + 1; j < p; ++j)
|
|
result = modq_plusproduct(result, f[j], g[i - j]);
|
|
fg[i] = result;
|
|
}
|
|
|
|
for(i = p + p - 2; i >= p; --i)
|
|
{
|
|
fg[i - p] = modq_sum(fg[i - p], fg[i]);
|
|
fg[i - p + 1] = modq_sum(fg[i - p + 1], fg[i]);
|
|
}
|
|
|
|
for(i = 0; i < p; ++i)
|
|
h[i] = fg[i];
|
|
}
|