fn hash_to_curve()

in src/group/ristretto.rs [51:65]

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

    fn hash_to_curve<CS: CipherSuite>(
        input: &[&[u8]],
        dst: &[u8],
    ) -> Result<Self::Elem, InternalError>
    where
        <CS::Hash as OutputSizeUser>::OutputSize:
            IsLess<U256> + IsLessOrEqual<<CS::Hash as BlockSizeUser>::BlockSize>,
    {
        let mut uniform_bytes = GenericArray::<_, U64>::default();
        ExpandMsgXmd::<CS::Hash>::expand_message(input, dst, 64)
            .map_err(|_| InternalError::Input)?
            .fill_bytes(&mut uniform_bytes);

        Ok(RistrettoPoint::from_uniform_bytes(&uniform_bytes.into()))
    }