/**
 * \file ctr.h
 *
 * \brief    This file contains common functionality for counter algorithms.
 *
 *  Copyright The Mbed TLS Contributors
 *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
 */

#ifndef MBEDTLS_CTR_H
#define MBEDTLS_CTR_H

#include "common.h"

static inline void mbedtls_ctr_increment_counter(uint8_t n[16])
{

    for (int i = 3;; i--) {
        uint32_t x = MBEDTLS_GET_UINT32_BE(n, i << 2);
        x += 1;
        MBEDTLS_PUT_UINT32_BE(x, n, i << 2);
        if (x != 0 || i == 0) {
            break;
        }
    }
}

#endif
