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Code Issues Releases Wiki Activity

Support for ECC_CACHE_CURVE with no malloc. ZD 17774

pull/7490/head
David Garske 2024-04-30 08:16:51 -07:00
parent f18633a000
commit eaa5edb65b
1 changed files with 14 additions and 0 deletions
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14
wolfcrypt/src/ecc.c
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@ -1495,7 +1495,11 @@ static int xil_mpi_import(mp_int *mpi,
#ifdef ECC_CACHE_CURVE
/* cache (mp_int) of the curve parameters */
#ifdef WOLFSSL_NO_MALLOC
static ecc_curve_spec ecc_curve_spec_cache[ECC_SET_COUNT];
#else
static ecc_curve_spec* ecc_curve_spec_cache[ECC_SET_COUNT];
#endif
#ifndef SINGLE_THREADED
static wolfSSL_Mutex ecc_curve_cache_mutex WOLFSSL_MUTEX_INITIALIZER_CLAUSE(ecc_curve_cache_mutex);
#endif
@ -1675,6 +1679,9 @@ static int wc_ecc_curve_load(const ecc_set_type* dp, ecc_curve_spec** pCurve,
}
#endif
#ifdef WOLFSSL_NO_MALLOC
curve = &ecc_curve_spec_cache[x];
#else
/* make sure cache has been allocated */
if (ecc_curve_spec_cache[x] == NULL
#ifdef WOLFSSL_CUSTOM_CURVES
@ -1701,6 +1708,8 @@ static int wc_ecc_curve_load(const ecc_set_type* dp, ecc_curve_spec** pCurve,
else {
curve = ecc_curve_spec_cache[x];
}
#endif /* WOLFSSL_NO_MALLOC */
/* return new or cached curve */
*pCurve = curve;
#else
@ -1780,11 +1789,16 @@ void wc_ecc_curve_cache_free(void)
/* free all ECC curve caches */
for (x = 0; x < (int)ECC_SET_COUNT; x++) {
#ifdef WOLFSSL_NO_MALLOC
wc_ecc_curve_cache_free_spec(&ecc_curve_spec_cache[x]);
XMEMSET(&ecc_curve_spec_cache[x], 0, sizeof(ecc_curve_spec_cache[x]));
#else
if (ecc_curve_spec_cache[x]) {
wc_ecc_curve_cache_free_spec(ecc_curve_spec_cache[x]);
XFREE(ecc_curve_spec_cache[x], NULL, DYNAMIC_TYPE_ECC);
ecc_curve_spec_cache[x] = NULL;
}
#endif /* WOLFSSL_NO_MALLOC */
}
#if defined(ECC_CACHE_CURVE) && !defined(SINGLE_THREADED) && \