/*
 * Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 * http://www.FreeRTOS.org
 * http://aws.amazon.com/freertos
 */


/*
 * Minimal configuration for RSA or ECDSA signature verification
 */

#ifndef MCUBOOT_MBEDTLS_CONFIG_RSA
#define MCUBOOT_MBEDTLS_CONFIG_RSA

#include "mcuboot_config.h"

#ifdef CONFIG_MCUBOOT_SERIAL
/* Mcuboot uses mbedts-base64 for serial protocol encoding. */
#define MBEDTLS_BASE64_C
#endif

/* System support */
#define MBEDTLS_PLATFORM_C
#define MBEDTLS_PLATFORM_MEMORY
#define MBEDTLS_MEMORY_BUFFER_ALLOC_C
#define MBEDTLS_NO_PLATFORM_ENTROPY
#define MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES

/* STD functions */
#define MBEDTLS_PLATFORM_NO_STD_FUNCTIONS

#define MBEDTLS_PLATFORM_EXIT_ALT
#define MBEDTLS_PLATFORM_PRINTF_ALT
#define MBEDTLS_PLATFORM_SNPRINTF_ALT

#if !defined( CONFIG_ARM )
#define MBEDTLS_HAVE_ASM
#endif

#define MBEDTLS_RSA_C
#define MBEDTLS_PKCS1_V21

#define MBEDTLS_CIPHER_MODE_CTR

/* mbed TLS modules */
#define MBEDTLS_ASN1_PARSE_C
#define MBEDTLS_ASN1_WRITE_C
#define MBEDTLS_BIGNUM_C
#define MBEDTLS_MD_C
#define MBEDTLS_OID_C
#define MBEDTLS_SHA256_C
#define MBEDTLS_AES_C

/* Save RAM by adjusting to our exact needs */
#define MBEDTLS_ECP_MAX_BITS           2048

#if ( CONFIG_BOOT_SIGNATURE_TYPE_RSA_LEN == 3072 )
#define MBEDTLS_MPI_MAX_SIZE           384
#else
#define MBEDTLS_MPI_MAX_SIZE           256
#endif

#define MBEDTLS_SSL_MAX_CONTENT_LEN    1024

/* Save ROM and a few bytes of RAM by specifying our own ciphersuite list */
#define MBEDTLS_SSL_CIPHERSUITES       MBEDTLS_TLS_ECJPAKE_WITH_AES_128_CCM_8

#include "mbedtls/check_config.h"

#endif /* MCUBOOT_MBEDTLS_CONFIG_RSA */