Commit 6bf24568 authored by Andy Polyakov's avatar Andy Polyakov
Browse files

Fix EC_KEY_check_key.

parent 837f2fc7

crypto/ec/ec_key.c

+4 −12
Original line number Diff line number Diff line
@@ -296,7 +296,7 @@ int EC_KEY_check_key(const EC_KEY *eckey) 
	{

	int	ok   = 0;

	BN_CTX	*ctx = NULL;

	BIGNUM	*order  = NULL;

	const BIGNUM	*order  = NULL;

	EC_POINT *point = NULL;



	if (!eckey || !eckey->group || !eckey->pub_key)
@@ -307,8 +307,6 @@ int EC_KEY_check_key(const EC_KEY *eckey) 
	

	if ((ctx = BN_CTX_new()) == NULL)

		goto err;

	if ((order = BN_new()) == NULL)

		goto err;

	if ((point = EC_POINT_new(eckey->group)) == NULL)

		goto err;
@@ -319,17 +317,13 @@ int EC_KEY_check_key(const EC_KEY *eckey) 
		goto err;

		}

	/* testing whether pub_key * order is the point at infinity */

	if (!EC_GROUP_get_order(eckey->group, order, ctx))

	order = &eckey->group->order;

	if (BN_is_zero(order))

		{

		ECerr(EC_F_EC_KEY_CHECK_KEY, EC_R_INVALID_GROUP_ORDER);

		goto err;

		}

	if (!EC_POINT_copy(point, eckey->pub_key))

		{

		ECerr(EC_F_EC_KEY_CHECK_KEY, ERR_R_EC_LIB);

		goto err;

		}

	if (!EC_POINT_mul(eckey->group, point, order, NULL, NULL, ctx))

	if (!EC_POINT_mul(eckey->group, point, NULL, eckey->pub_key, order, ctx))

		{

		ECerr(EC_F_EC_KEY_CHECK_KEY, ERR_R_EC_LIB);

		goto err;
@@ -366,8 +360,6 @@ int EC_KEY_check_key(const EC_KEY *eckey) 
err:

	if (ctx   != NULL)

		BN_CTX_free(ctx);

	if (order != NULL)

		BN_free(order);

	if (point != NULL)

		EC_POINT_free(point);

	return(ok);