private static void Decode32(Span <byte> bs, int bsOff, Span <uint> n, int nOff, int nLen)
{
for (int i = 0; i < nLen; ++i)
{
n[nOff + i] = X25519Field.Decode32(bs, bsOff + i * 4);
}
}
private static void DecodeScalar(ReadOnlySpan <byte> k, int kOff, Span <uint> n)
{
for (int i = 0; i < 8; ++i)
{
n[i] = X25519Field.Decode32(k, kOff + i * 4);
}
n[0] &= 0xFFFFFFF8U;
n[7] &= 0x7FFFFFFFU;
n[7] |= 0x40000000U;
}