eed() returns a pointer to the seed that was used to generate the parameter b, or NULL if the seed is not specified. EC_GROUP_get_seed_len() returns the length of the seed or 0 if the seed is not specified.</p>

<p>EC_GROUP_set_seed() returns the length of the seed that has been set. If the supplied seed is NULL, or the supplied seed length is 0, the return value will be 1. On error 0 is returned.</p>

<p>EC_GROUP_cmp() returns 0 if the curves are equal, 1 if they are not equal, or -1 on error.</p>

<p>EC_G