>typedef enum {
       /** the point is encoded as z||x, where the octet z specifies
        *   which solution of the quadratic equation y is  */
       POINT_CONVERSION_COMPRESSED = 2,
       /** the point is encoded as z||x||y, where z is the octet 0x04  */
       POINT_CONVERSION_UNCOMPRESSED = 4,
       /** the point is encoded as z||x||y, where the octet z specifies
        *  which solution of the quadratic equation y is  */
       POINT_CONVERSION_HYBRID = 6
} point_conversion_form_t;</code></pre>

