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STM32 PKA fix: remove reverse array operations

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This commit is contained in:
Daniele Lacamera
2019-10-09 10:22:04 +02:00
parent c26a7ccb68
commit 3465a487d3
1 changed files with 0 additions and 20 deletions
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20
wolfcrypt/src/port/st/stm32.c
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@@ -370,20 +370,6 @@ int wc_Stm32_Aes_Init(Aes* aes, CRYP_InitTypeDef* cryptInit,
extern PKA_HandleTypeDef hpka;
/* Reverse array in memory (in place) */
static void stm32_reverse_array(uint8_t *src, size_t src_len)
{
unsigned int i;
for (i = 0; i < src_len / 2; i++) {
uint8_t tmp;
tmp = src[i];
src[i] = src[src_len - 1 - i];
src[src_len - 1 - i] = tmp;
}
}
#ifdef HAVE_ECC
#include <wolfssl/wolfcrypt/ecc.h>
@@ -415,12 +401,6 @@ static int stm32_get_from_mp_int(uint8_t *dst, mp_int *a, int sz)
/* convert mp_int to array of bytes */
res = mp_to_unsigned_bin(a, dst + offset);
if (res == MP_OKAY) {
/* reverse array for STM32_PKA direct use */
stm32_reverse_array(dst, sz);
}
return res;
}