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#include "randombytes.h"
/* XXX: current implementation is limited to n<2^55 */
long long randommod(long long n)
{
long long result = 0;
long long j;
unsigned char r[32];
if (n <= 1) return 0;
randombytes(r,32);
for (j = 0;j < 32;++j) result = (result * 256 + (unsigned long long) r[j]) % n;
return result;
}
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