Commit a004b062 authored by Bodo Möller's avatar Bodo Möller
Browse files

additional sanity checks for arguments to EC_POINTs_mul()

parent 98eab439

crypto/ec/ec_mult.c

+11 −0
Original line number Diff line number Diff line
@@ -209,6 +209,17 @@ int EC_POINTs_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *scalar, 
	EC_POINT ***val_sub = NULL; /* pointers to sub-arrays of 'val' */

	int ret = 0;

	

	if (group->meth != r->meth)

		{

		ECerr(EC_F_EC_POINTS_MUL, EC_R_INCOMPATIBLE_OBJECTS);

		return 0;

		}



	if ((scalar == NULL) && (num == 0))

		{

		return EC_POINT_set_to_infinity(group, r);

		}



	if (scalar != NULL)

		{

		generator = EC_GROUP_get0_generator(group);