func p224AlternativeToBig(in *p224FieldElement) *big.Int {
	ret := new(big.Int)
	tmp := new(big.Int)

	for i := len(in) - 1; i >= 0; i-- {
		ret.Lsh(ret, 28)
		tmp.SetInt64(int64(in[i]))
		ret.Add(ret, tmp)
	}
	ret.Mod(ret, P224().Params().P)
	return ret
}
The software performs a calculation that generates incorrect or unintended results that are later used in security-critical decisions or resource management.