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2025-10-09 09:57:24 +09:00
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namespace Org.BouncyCastle.Math.Raw;
internal abstract class Nat384
{
public static void Mul(uint[] x, uint[] y, uint[] zz)
{
Nat192.Mul(x, y, zz);
Nat192.Mul(x, 6, y, 6, zz, 12);
uint num = Nat192.AddToEachOther(zz, 6, zz, 12);
uint cIn = num + Nat192.AddTo(zz, 0, zz, 6, 0u);
num += Nat192.AddTo(zz, 18, zz, 12, cIn);
uint[] array = Nat192.Create();
uint[] array2 = Nat192.Create();
bool flag = Nat192.Diff(x, 6, x, 0, array, 0) != Nat192.Diff(y, 6, y, 0, array2, 0);
uint[] array3 = Nat192.CreateExt();
Nat192.Mul(array, array2, array3);
num += (uint)(flag ? ((int)Nat.AddTo(12, array3, 0, zz, 6)) : Nat.SubFrom(12, array3, 0, zz, 6));
Nat.AddWordAt(24, num, zz, 18);
}
public static void Square(uint[] x, uint[] zz)
{
Nat192.Square(x, zz);
Nat192.Square(x, 6, zz, 12);
uint num = Nat192.AddToEachOther(zz, 6, zz, 12);
uint cIn = num + Nat192.AddTo(zz, 0, zz, 6, 0u);
num += Nat192.AddTo(zz, 18, zz, 12, cIn);
uint[] array = Nat192.Create();
Nat192.Diff(x, 6, x, 0, array, 0);
uint[] array2 = Nat192.CreateExt();
Nat192.Square(array, array2);
num += (uint)Nat.SubFrom(12, array2, 0, zz, 6);
Nat.AddWordAt(24, num, zz, 18);
}
}