b> of size <b>len</b>, conforming to Sec. 2.3.4 of the SECG SEC 1 (&quot;Elliptic Curve Cryptography&quot;) standard.</p>

<p>The functions EC_POINT_point2hex() and EC_POINT_point2bn() convert a point <b>p</b>, respectively, to the hexadecimal or BIGNUM representation of the same encoding of the function EC_POINT_point2oct(). Vice versa, similarly to the function EC_POINT_oct2point(), the functions EC_POINT_hex2point() and EC_POINT_point2bn() decode the hexadecimal or BIGNUM representation into the EC_POINT