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Always call psa_crypto_init before using TLS

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In Mbed TLS 4.0, all cryptography goes through PSA, so calling
psa_crypto_init() is now mandatory before starting a TLS connection (as was
the case in Mbed TLS 3.x with MBEDTLS_USE_PSA_CRYPTO enabled).

Switch the TLS sample programs to calling psa_crypto_init() unconditionally.
Otherwise TLS 1.3 connections fail, and (D)TLS 1.2 connections soon will.

This commit omits the test programs ssl_client2 and ssl_server2, which don't
require a change right now. They will be covered when we make
MBEDTLS_USE_PSA_CRYPTO always on.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine
2024-09-25 21:12:57 +02:00
parent f9ad8303f1
commit 5333425891
9 changed files with 0 additions and 36 deletions
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4
programs/ssl/dtls_client.c
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@@ -98,7 +98,6 @@ int main(int argc, char *argv[])
mbedtls_ctr_drbg_init(&ctr_drbg);
mbedtls_entropy_init(&entropy);
#if defined(MBEDTLS_USE_PSA_CRYPTO)
psa_status_t status = psa_crypto_init();
if (status != PSA_SUCCESS) {
mbedtls_fprintf(stderr, "Failed to initialize PSA Crypto implementation: %d\n",
@@ -106,7 +105,6 @@ int main(int argc, char *argv[])
ret = MBEDTLS_ERR_SSL_HW_ACCEL_FAILED;
goto exit;
}
#endif /* MBEDTLS_USE_PSA_CRYPTO */
mbedtls_printf("\n . Seeding the random number generator...");
fflush(stdout);
@@ -325,9 +323,7 @@ exit:
mbedtls_ssl_config_free(&conf);
mbedtls_ctr_drbg_free(&ctr_drbg);
mbedtls_entropy_free(&entropy);
#if defined(MBEDTLS_USE_PSA_CRYPTO)
mbedtls_psa_crypto_free();
#endif /* MBEDTLS_USE_PSA_CRYPTO */
/* Shell can not handle large exit numbers -> 1 for errors */
if (ret < 0) {