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add compute application transform

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Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
This commit is contained in:
Jerry Yu
2022-05-19 14:29:48 +08:00
parent 545432310d
commit fd5ea0458f
3 changed files with 83 additions and 105 deletions
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54
library/ssl_tls13_keys.c
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@ -1571,4 +1571,58 @@ int mbedtls_ssl_tls13_generate_resumption_master_secret(
return( 0 );
}
int mbedtls_ssl_tls13_compute_application_transform( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
mbedtls_ssl_key_set traffic_keys;
mbedtls_ssl_transform *transform_application = NULL;
ret = mbedtls_ssl_tls13_key_schedule_stage_application( ssl );
if( ret != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1,
"mbedtls_ssl_tls13_key_schedule_stage_application", ret );
goto cleanup;
}
ret = mbedtls_ssl_tls13_generate_application_keys( ssl, &traffic_keys );
if( ret != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1,
"mbedtls_ssl_tls13_generate_application_keys", ret );
goto cleanup;
}
transform_application =
mbedtls_calloc( 1, sizeof( mbedtls_ssl_transform ) );
if( transform_application == NULL )
{
ret = MBEDTLS_ERR_SSL_ALLOC_FAILED;
goto cleanup;
}
ret = mbedtls_ssl_tls13_populate_transform(
transform_application,
ssl->conf->endpoint,
ssl->session_negotiate->ciphersuite,
&traffic_keys,
ssl );
if( ret != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_tls13_populate_transform", ret );
goto cleanup;
}
ssl->transform_application = transform_application;
cleanup:
mbedtls_platform_zeroize( &traffic_keys, sizeof( traffic_keys ) );
if( ret != 0 )
{
mbedtls_free( transform_application );
}
return( ret );
}
#endif /* MBEDTLS_SSL_PROTO_TLS1_3 */