if (r || BN_cmp(a1, b2) || BN_cmp(a2, b2) || BN_cmp(a3, b3))
if (r || BN_cmp(a1, b1) || BN_cmp(a2, b2) || BN_cmp(a3, b3))
int EC_GROUP_cmp(const EC_GROUP *a, const EC_GROUP *b, BN_CTX *ctx)	{	int    r = 0;	BIGNUM *a1, *a2, *a3, *b1, *b2, *b3;	BN_CTX *ctx_new = NULL;	/* compare the field types*/	if (EC_METHOD_get_field_type(EC_GROUP_method_of(a)) !=	    EC_METHOD_get_field_type(EC_GROUP_method_of(b)))		return 1;	/* compare the curve name (if present) */	if (EC_GROUP_get_nid(a) && EC_GROUP_get_nid(b) &&	    EC_GROUP_get_nid(a) == EC_GROUP_get_nid(b))		return 0;	if (!ctx)		ctx_new = ctx = BN_CTX_new();	if (!ctx)		return -1;		BN_CTX_start(ctx);	a1 = BN_CTX_get(ctx);	a2 = BN_CTX_get(ctx);	a3 = BN_CTX_get(ctx);	b1 = BN_CTX_get(ctx);	b2 = BN_CTX_get(ctx);	b3 = BN_CTX_get(ctx);	if (!b3)		{		BN_CTX_end(ctx);		if (ctx_new)			BN_CTX_free(ctx);		return -1;		}	/* XXX This approach assumes that the external representation	 * of curves over the same field type is the same.	 */	if (!a->meth->group_get_curve(a, a1, a2, a3, ctx) ||	    !b->meth->group_get_curve(b, b1, b2, b3, ctx))		r = 1;	if (r || BN_cmp(a1, b2) || BN_cmp(a2, b2) || BN_cmp(a3, b3))		r = 1;	/* XXX EC_POINT_cmp() assumes that the methods are equal */	if (r || EC_POINT_cmp(a, EC_GROUP_get0_generator(a),	    EC_GROUP_get0_generator(b), ctx))		r = 1;	if (!r)		{		/* compare the order and cofactor */		if (!EC_GROUP_get_order(a, a1, ctx) ||		    !EC_GROUP_get_order(b, b1, ctx) ||		    !EC_GROUP_get_cofactor(a, a2, ctx) ||		    !EC_GROUP_get_cofactor(b, b2, ctx))			{			BN_CTX_end(ctx);			if (ctx_new)				BN_CTX_free(ctx);			return -1;			}		if (BN_cmp(a1, b1) || BN_cmp(a2, b2))			r = 1;		}	BN_CTX_end(ctx);	if (ctx_new)		BN_CTX_free(ctx);	return r;	}