return this.ownerGroupSid;
    }

    /**
     * Gets the owner user SID of this security descriptor.
     *
     * @return the security identifier of the owner user
     */
    public final SID getOwnerUserSid() {
        return this.ownerUserSid;
    }

    /**
     * Decodes a security descriptor from a byte buffer.
     *
     * @param buffer the byte buffer containing the security descriptor data