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DCP port: Fixed AES, aligned key for the HW module

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This commit is contained in:
Daniele Lacamera
2021-05-11 08:27:03 +02:00
parent bab0d9bd4a
commit d9cc013fd2
1 changed files with 12 additions and 8 deletions
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20
wolfcrypt/src/port/nxp/dcp_port.c
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@ -50,9 +50,11 @@
#include "fsl_dcp.h"
#ifndef SINGLE_THREADED
#define dcp_lock_init() wolfSSL_CryptHwMutexInit()
#define dcp_lock() wolfSSL_CryptHwMutexLock()
#define dcp_unlock() wolfSSL_CryptHwMutexLock()
#define dcp_unlock() wolfSSL_CryptHwMutexUnLock()
#else
#define dcp_lock_init() do{}while(0)
#define dcp_lock() do{}while(0)
#define dcp_unlock() do{}while(0)
#endif
@ -126,6 +128,7 @@ static int dcp_get_channel(void)
if (dcp_status[i] == 0) {
dcp_status[i]++;
ret = dcp_channels[i];
break;
}
}
dcp_unlock();
@ -161,6 +164,7 @@ static int dcp_key_slot(int ch)
int wc_dcp_init(void)
{
dcp_config_t dcpConfig;
dcp_lock_init();
dcp_lock();
DCP_GetDefaultConfig(&dcpConfig);
@ -211,8 +215,11 @@ int DCPAesInit(Aes *aes)
void DCPAesFree(Aes *aes)
{
dcp_free(aes->handle.channel);
aes->handle.channel = 0;
}
static unsigned char aes_key_aligned[16] __attribute__((aligned(0x10)));
int DCPAesSetKey(Aes* aes, const byte* key, word32 len, const byte* iv,
int dir)
{
@ -227,10 +234,12 @@ int DCPAesSetKey(Aes* aes, const byte* key, word32 len, const byte* iv,
if (len != 16)
return BAD_FUNC_ARG;
if (aes->handle.channel == 0) {
return BAD_FUNC_ARG;
if (DCPAesInit(aes) != 0)
return WC_HW_E;
}
dcp_lock();
status = DCP_AES_SetKey(DCP, &aes->handle, key, 16);
memcpy(aes_key_aligned, key, 16);
status = DCP_AES_SetKey(DCP, &aes->handle, aes_key_aligned, 16);
if (status != kStatus_Success)
status = WC_HW_E;
else {
@ -328,11 +337,6 @@ int wc_InitSha256_ex(wc_Sha256* sha256, void* heap, int devId)
return ret;
}
int wc_InitSha256(wc_Sha256* sha256)
{
return wc_InitSha256_ex(sha256, NULL, INVALID_DEVID);
}
void DCPSha256Free(wc_Sha256* sha256)
{
if (sha256)