[noup] zephyr: Update to support MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG#76
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jukkar merged 1 commit intozephyrproject-rtos:mainfrom Feb 10, 2025
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-This commit add support for MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG which adds support for PRNG (seeded by TRNG) without using the legacy Mbed TLS APIs in ctr_drbg.c and entropy.c. When the configuration MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG is enabled there is a new function available in the system that is used to override this behavior. This function is called mbedtls_psa_external_get_random but for compatibility with the f_rng/p_rng signature the function mbedtls_psa_get_random (found in mbedtls/psa_util.h) is used directly in code. -Added a function pointer called hostap_rng_fn which is set to mbedtls_psa_get_random if MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG is enabled, otherwise it is set to the legacy API mbedtls_ctr_drbg_random. -Added a context pointer called hostap_rng_ctx that is set to MBEDTLS_PSA_RANDOM_STATE (NULL) if MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG is set, otherwise it points to the existing ctr_drbg context. -Updated all calls using legacy APIs making use of the f_rng/p_rng pattern to use hostap_rng_fn and hostap_rng_ctx in crypto_mbedtls_alt -Added forward declaration of hostap_rng_fn and hostap_rng_ctx in tls_mbedtls_alt.c and changed every API-call making use of the f_rng/p_rng pattern. Signed-off-by: Frank Audun Kvamtrø <frank.kvamtro@nordicsemi.no>
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krish2718
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-This commit add support for MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG
which adds support for PRNG (seeded by TRNG) without using
the legacy Mbed TLS APIs in ctr_drbg.c and entropy.c. When the
configuration MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG is enabled there
is a new function available in the system that is used to override
this behavior. This function is called mbedtls_psa_external_get_random
but for compatibility with the f_rng/p_rng signature the
function mbedtls_psa_get_random (found in mbedtls/psa_util.h) is
used directly in code.
-Added a function pointer called hostap_rng_fn which is set
to mbedtls_psa_get_random if MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG is
enabled, otherwise it is set to the legacy API mbedtls_ctr_drbg_random.
-Added a context pointer called hostap_rng_ctx that is set to
MBEDTLS_PSA_RANDOM_STATE (NULL) if MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG
is set, otherwise it points to the existing ctr_drbg context.
-Updated all calls using legacy APIs making use of the f_rng/p_rng
pattern to use hostap_rng_fn and hostap_rng_ctx in crypto_mbedtls_alt
-Added forward declaration of hostap_rng_fn and hostap_rng_ctx in
tls_mbedtls_alt.c and changed every API-call making use of the
f_rng/p_rng pattern.