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Import PSA HMAC key in mbedtls_ssl_cookie_setup()

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Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
This commit is contained in:
Neil Armstrong 2022-03-04 10:26:16 +01:00
parent bca99ee0ac
commit d633201279
1 changed files with 24 additions and 0 deletions
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24
library/ssl_cookie.c
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@ -107,10 +107,34 @@ int mbedtls_ssl_cookie_setup( mbedtls_ssl_cookie_ctx *ctx,
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned char key[COOKIE_MD_OUTLEN];
#if defined(MBEDTLS_USE_PSA_CRYPTO)
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
psa_algorithm_t alg;
#endif /* MBEDTLS_USE_PSA_CRYPTO */
if( ( ret = f_rng( p_rng, key, sizeof( key ) ) ) != 0 )
return( ret );
#if defined(MBEDTLS_USE_PSA_CRYPTO)
alg = mbedtls_psa_translate_md( COOKIE_MD );
if( alg == 0 )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
ctx->psa_hmac_alg = PSA_ALG_HMAC( alg );
psa_set_key_usage_flags( &attributes, PSA_KEY_USAGE_SIGN_MESSAGE );
psa_set_key_algorithm( &attributes, PSA_ALG_HMAC( alg ) );
psa_set_key_type( &attributes, PSA_KEY_TYPE_HMAC );
if( ( status = psa_import_key( &attributes,
key, sizeof( key ),
&ctx->psa_hmac ) ) != PSA_SUCCESS )
{
return psa_ssl_status_to_mbedtls( status );
}
#endif /* MBEDTLS_USE_PSA_CRYPTO */
ret = mbedtls_md_setup( &ctx->hmac_ctx, mbedtls_md_info_from_type( COOKIE_MD ), 1 );
if( ret != 0 )
return( ret );