fn deserialize_scalar()

in src/group/ristretto.rs [136:143]

• 8 lines of code
• 1 McCabe index (conditional complexity)

    fn deserialize_scalar(scalar_bits: &[u8]) -> Result<Self::Scalar> {
        scalar_bits
            .try_into()
            .ok()
            .and_then(Scalar::from_canonical_bytes)
            .filter(|scalar| scalar != &Scalar::zero())
            .ok_or(Error::Deserialization)
    }