fn hash_to_curve()

in akd_client/src/ecvrf.rs [131:149]

• 17 lines of code
• 2 McCabe index (conditional complexity)

    fn hash_to_curve(&self, alpha: &[u8]) -> EdwardsPoint {
        let mut result = [0u8; 32];
        let mut counter = 0;
        let mut wrapped_point: Option<EdwardsPoint> = None;

        while wrapped_point.is_none() {
            let hash = Sha512::new()
                .chain(&[SUITE, ONE])
                .chain(self.0.as_bytes())
                .chain(&alpha)
                .chain(&[counter])
                .finalize();
            result.copy_from_slice(&hash[..32]);
            wrapped_point = CompressedEdwardsY::from_slice(&result).decompress();
            counter += 1;
        }

        wrapped_point.unwrap().mul_by_cofactor()
    }