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/**************************************************************************/
/* */
/* Copyright (c) Microsoft Corporation. All rights reserved. */
/* */
/* This software is licensed under the Microsoft Software License */
/* Terms for Microsoft Azure RTOS. Full text of the license can be */
/* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
/* and in the root directory of this software. */
/* */
/**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** NetX Crypto Component */
/** */
/** Crypto Module Initialization, startup, and helper routines */
/** */
/**************************************************************************/
/**************************************************************************/
/* NOTE: This file is used for FIPS certification on STM32F469 only. */
#define NX_CRYPTO_SOURCE_CODE
#include "nx_crypto.h"
#include "nx_crypto_hmac_sha2.h"
#if defined(NX_CRYPTO_SELF_TEST) && defined(STM32F469xx)
#define NX_CRYPTO_INTEGRITY_TEST_CHECK(status) \
if(status) \
{ \
_nx_crypto_library_state |= NX_CRYPTO_LIBRARY_STATE_POST_FAILED; \
}
#define REG32(x) (*(volatile unsigned int *)(x))
/* Define RCC register. */
#define STM32F4_RCC 0x40023800
#define STM32F4_RCC_AHB2ENR REG32(STM32F4_RCC + 0x34)
#define STM32F4_RCC_AHB2ENR_RNGEN 0x00000040
#define STM32L4_RCC 0x40021000
#define STM32L4_RCC_AHB2ENR REG32(STM32L4_RCC + 0x4C)
#define STM32L4_RCC_AHB2ENR_RNGEN 0x00040000
/* Define RNG registers. */
#define STM32_RNG 0x50060800
#define STM32_RNG_CR REG32(STM32_RNG + 0x00)
#define STM32_RNG_SR REG32(STM32_RNG + 0x04)
#define STM32_RNG_DR REG32(STM32_RNG + 0x08)
#define STM32_RNG_CR_RNGEN 0x00000004
#define STM32_RNG_CR_IE 0x00000008
#define STM32_RNG_CR_CED 0x00000020
#define STM32_RNG_SR_DRDY 0x00000001
#define STM32_RNG_SR_CECS 0x00000002
#define STM32_RNG_SR_SECS 0x00000004
#define STM32_RNG_SR_CEIS 0x00000020
#define STM32_RNG_SR_SEIS 0x00000040
#define DBGMCU_IDCODE REG32(0xE0042000)
#define DBGMCU_IDCODE_DEV_ID_MASK 0x00000FFF
#define DEV_ID_L47x 0x415
const unsigned long long _nx_crypto_module_program_begin @ "NX_CRYPTO_PROGRAM_BEGIN" = 0ull;
const unsigned char _nx_crypto_module_hash_value[32] @ "NX_CRYPTO_PROGRAM_END" =
{
#if (__VER__ == 8030002)
/* IAR 8.30.2 */
0xe0, 0xa6, 0xf3, 0x19, 0x9f, 0x43, 0x02, 0x4f,
0xe6, 0x69, 0xfb, 0xd3, 0x4c, 0x1b, 0xdd, 0xee,
0x90, 0x3c, 0xff, 0xba, 0x16, 0x56, 0x51, 0x78,
0x57, 0xe6, 0x47, 0xc2, 0xca, 0x83, 0xff, 0xc9
#else
/* IAR 8.22.2 */
0xe8, 0xd9, 0xe8, 0xac, 0xd3, 0x7c, 0x54, 0x7e,
0xd0, 0x72, 0x96, 0x38, 0xde, 0x45, 0x78, 0xff,
0xe1, 0xe4, 0xb2, 0xfc, 0xfd, 0xa6, 0x11, 0xd7,
0x0c, 0xda, 0xc9, 0xc9, 0xf2, 0x95, 0xd2, 0xa4
#endif
};
extern NX_CRYPTO_METHOD crypto_method_hmac_sha256;
extern const CHAR nx_crypto_hash_key[];
extern const UINT nx_crypto_hash_key_size;
static UCHAR nx_crypto_hmac_output[64];
static NX_CRYPTO_SHA256_HMAC nx_crypto_self_test_hmac;
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _nx_crypto_hardware_rand_initialize PORTABLE C */
/* 6.1.10 */
/* AUTHOR */
/* */
/* Timothy Stapko, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function initializes hardware random number generator. */
/* The following processors are supported: */
/* STM32F407 */
/* STM32F417 */
/* STM32F429 */
/* STM32F439 */
/* STM32F469 */
/* STM32F479 */
/* STM32L475 */
/* STM32L476 */
/* */
/* INPUT */
/* */
/* None */
/* */
/* OUTPUT */
/* */
/* None */
/* */
/* CALLS */
/* */
/* None */
/* */
/* CALLED BY */
/* */
/* _nx_crypto_method_self_test */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 05-19-2020 Timothy Stapko Initial Version 6.0 */
/* 09-30-2020 Timothy Stapko Modified comment(s), */
/* resulting in version 6.1 */
/* 06-02-2021 Bhupendra Naphade Modified comment(s), */
/* renamed FIPS symbol to */
/* self-test, */
/* resulting in version 6.1.7 */
/* 01-31-2022 Bhupendra Naphade Modified comment(s), */
/* updated build condition, */
/* resulting in version 6.1.10 */
/* */
/**************************************************************************/
NX_CRYPTO_KEEP void _nx_crypto_hardware_rand_initialize_stm32f4(void)
{
unsigned int device_id;
/* Read device ID. */
device_id = DBGMCU_IDCODE & DBGMCU_IDCODE_DEV_ID_MASK;
if (device_id == DEV_ID_L47x)
{
/* Enable clock for the RNG. */
STM32L4_RCC_AHB2ENR |= STM32L4_RCC_AHB2ENR_RNGEN;
}
else
{
/* Enable clock for the RNG. */
STM32F4_RCC_AHB2ENR |= STM32F4_RCC_AHB2ENR_RNGEN;
}
/* Enable the random number generator. */
STM32_RNG_CR = STM32_RNG_CR_RNGEN;
}
NX_CRYPTO_KEEP INT nx_crypto_hardware_rand(VOID)
{
/* Wait for data ready. */
while((STM32_RNG_SR & STM32_RNG_SR_DRDY) == 0);
/* Return the random number. */
return STM32_RNG_DR;
}
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* __aeabi_memcpy PORTABLE C */
/* 6.1 */
/* AUTHOR */
/* */
/* Timothy Stapko, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function performs memory copy function for the FIPS 140-2 */
/* compliance build. */
/* */
/* INPUT */
/* */
/* dest Pointer to the destination */
/* memory */
/* value value (in byte) to set to the */
/* memory location */
/* size Number of bytes to copy */
/* */
/* OUTPUT */
/* */
/* void * Pointer to the destination */
/* memory */
/* */
/* CALLS */
/* */
/* None */
/* */
/* CALLED BY */
/* */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 05-19-2020 Timothy Stapko Initial Version 6.0 */
/* 09-30-2020 Timothy Stapko Modified comment(s), */
/* resulting in version 6.1 */
/* */
/**************************************************************************/
NX_CRYPTO_KEEP __nounwind __interwork __softfp __aapcs_core void __aeabi_memcpy (void *dest, const void *src, size_t size)
{
char *from, *to;
unsigned int i;
from = (char*)src;
to = (char*)dest;
for(i = 0; i < size; i++)
{
to[i] = from[i];
}
}
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* __aeabi_memcpy4 PORTABLE C */
/* 6.1 */
/* AUTHOR */
/* */
/* Timothy Stapko, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function performs memory copy function for the FIPS 140-2 */
/* compliance build. */
/* */
/* INPUT */
/* */
/* dest Pointer to the destination */
/* memory */
/* value value (in byte) to set to the */
/* memory location */
/* size Number of bytes to copy */
/* */
/* OUTPUT */
/* */
/* void * Pointer to the destination */
/* memory */
/* */
/* CALLS */
/* */
/* None */
/* */
/* CALLED BY */
/* */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 05-19-2020 Timothy Stapko Initial Version 6.0 */
/* 09-30-2020 Timothy Stapko Modified comment(s), */
/* resulting in version 6.1 */
/* */
/**************************************************************************/
NX_CRYPTO_KEEP __nounwind __interwork __softfp __aapcs_core void __aeabi_memcpy4 (void *dest, const void *src, size_t size)
{
char *from, *to;
unsigned int i;
from = (char*)src;
to = (char*)dest;
for(i = 0; i < size; i++)
{
to[i] = from[i];
}
}
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* __aeabi_memcpy8 PORTABLE C */
/* 6.1 */
/* AUTHOR */
/* */
/* Timothy Stapko, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function performs memory copy function for the FIPS 140-2 */
/* compliance build. */
/* */
/* INPUT */
/* */
/* dest Pointer to the destination */
/* memory */
/* value value (in byte) to set to the */
/* memory location */
/* size Number of bytes to copy */
/* */
/* OUTPUT */
/* */
/* void * Pointer to the destination */
/* memory */
/* */
/* CALLS */
/* */
/* None */
/* */
/* CALLED BY */
/* */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 05-19-2020 Timothy Stapko Initial Version 6.0 */
/* 09-30-2020 Timothy Stapko Modified comment(s), */
/* resulting in version 6.1 */
/* */
/**************************************************************************/
NX_CRYPTO_KEEP __nounwind __interwork __softfp __aapcs_core void __aeabi_memcpy8 (void *dest, const void *src, size_t size)
{
char *from, *to;
unsigned int i;
from = (char*)src;
to = (char*)dest;
for(i = 0; i < size; i++)
{
to[i] = from[i];
}
}
NX_CRYPTO_KEEP UINT _nx_crypto_integrity_test(void)
{
UINT status;
status = _nx_crypto_method_hmac_sha256_operation(NX_CRYPTO_AUTHENTICATE, /* op */
(VOID*)&nx_crypto_self_test_hmac,
&crypto_method_hmac_sha256, /* Method */
(UCHAR*)nx_crypto_hash_key,
nx_crypto_hash_key_size,
(UCHAR*)&_nx_crypto_module_program_begin,
(ULONG)_nx_crypto_module_hash_value - (ULONG)&_nx_crypto_module_program_begin,
NX_CRYPTO_NULL, /* iv_ptr, not used */
nx_crypto_hmac_output, sizeof(nx_crypto_hmac_output),
&nx_crypto_self_test_hmac, sizeof(nx_crypto_self_test_hmac),
NX_CRYPTO_NULL, NX_CRYPTO_NULL);
NX_CRYPTO_INTEGRITY_TEST_CHECK(status)
status = (UINT)NX_CRYPTO_MEMCMP(nx_crypto_hmac_output, _nx_crypto_module_hash_value, 32);
NX_CRYPTO_INTEGRITY_TEST_CHECK(status);
return(status);
}
#endif
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