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move attestion key to not be part of firmware

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This commit is contained in:
Conor Patrick
2018-12-10 20:37:12 -05:00
parent 94140a0aa9
commit a96ff8eb63
3 changed files with 38 additions and 7 deletions
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5
targets/stm32l442/src/crypto.c
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@@ -20,6 +20,7 @@
#include "device.h"
#include APP_CONFIG
#include "log.h"
#include "memory_layout.h"
typedef enum
@@ -164,7 +165,9 @@ void crypto_ecc256_init()
void crypto_ecc256_load_attestation_key()
{
_signing_key = attestation_key;
static uint8_t _key [32];
memmove(_key, (uint8_t*)ATTESTATION_KEY_ADDR, 32);
_signing_key = _key;
_key_len = 32;
}

6
targets/stm32l442/src/memory_layout.h
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@@ -17,7 +17,7 @@
// Storage of FIDO2 resident keys
#define RK_NUM_PAGES 10
#define RK_START_PAGE (PAGES - 14)
#define RK_END_PAGE (PAGES - 14 + RK_NUM_PAGES)
#define RK_END_PAGE (PAGES - 14 + RK_NUM_PAGES) // not included
// Start of application code
#ifndef APPLICATION_START_PAGE
@@ -25,6 +25,10 @@
#endif
#define APPLICATION_START_ADDR (0x08000000 + ((APPLICATION_START_PAGE)*PAGE_SIZE))
// where attestation key is located
#define ATTESTATION_KEY_PAGE (PAGES - 15)
#define ATTESTATION_KEY_ADDR (0x08000000 + ATTESTATION_KEY_PAGE*PAGE_SIZE)
// End of application code. Leave some extra room for future data storage.
// NOT included in application
#define APPLICATION_END_PAGE ((PAGES - 19))