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Fixes for return codes on STM PKA code. Fix for const warnings.

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This commit is contained in:
David Garske 2021-05-26 09:46:40 -07:00
parent 98ab62ea74
commit 4d4b3c9e8a
1 changed files with 9 additions and 9 deletions
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18
wolfcrypt/src/port/st/stm32.c
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@ -386,19 +386,19 @@ extern PKA_HandleTypeDef hpka;
* and mp_int has only 31 bytes, we add leading zeros
* so that result array has 32 bytes, same as modulus (sz).
*/
static int stm32_get_from_mp_int(uint8_t *dst, mp_int *a, int sz)
static int stm32_get_from_mp_int(uint8_t *dst, const mp_int *a, int sz)
{
int res;
int szbin;
int offset;
if (!a || !dst || (sz < 0))
return -1;
if (a == NULL || dst == NULL || sz < 0)
return BAD_FUNC_ARG;
/* check how many bytes are in the mp_int */
szbin = mp_unsigned_bin_size(a);
if ((szbin < 0) || (szbin > sz))
return -1;
szbin = mp_unsigned_bin_size((mp_int*)a);
if (szbin < 0 || szbin > sz)
return BUFFER_E;
/* compute offset from dst */
offset = sz - szbin;
@ -412,7 +412,7 @@ static int stm32_get_from_mp_int(uint8_t *dst, mp_int *a, int sz)
XMEMSET(dst, 0, offset);
/* convert mp_int to array of bytes */
res = mp_to_unsigned_bin(a, dst + offset);
res = mp_to_unsigned_bin((mp_int*)a, dst + offset);
return res;
}
@ -627,7 +627,7 @@ static int stm32_get_ecc_specs(const uint8_t **prime, const uint8_t **coef,
break;
#endif
default:
return -1;
return NOT_COMPILED_IN;
}
return 0;
}
@ -672,7 +672,7 @@ int wc_ecc_mulmod_ex(const mp_int *k, ecc_point *G, ecc_point *R, mp_int* a,
}
szModulus = mp_unsigned_bin_size(modulus);
szkbin = mp_unsigned_bin_size(k);
szkbin = mp_unsigned_bin_size((mp_int*)k);
res = stm32_get_from_mp_int(kbin, k, szkbin);
if (res == MP_OKAY)