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fix comments and function name issues

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Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
This commit is contained in:
Jerry Yu 2022-11-21 22:45:58 +08:00
parent b094e124f2
commit 3ce61ffca6
3 changed files with 25 additions and 15 deletions
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2
library/ssl_misc.h
View file

@ -986,7 +986,7 @@ struct mbedtls_ssl_handshake_params
mbedtls_ssl_tls13_handshake_secrets tls13_hs_secrets;
#if defined(MBEDTLS_SSL_EARLY_DATA)
mbedtls_ssl_tls13_early_secrets tls13_early_secrets;
/** TLS 1.3 transform for 0-RTT application and handshake messages. */
/** TLS 1.3 transform for early data and handshake messages. */
mbedtls_ssl_transform *transform_earlydata;
#endif
#endif /* MBEDTLS_SSL_PROTO_TLS1_3 */

28
library/ssl_tls13_keys.c
View file

@ -1082,11 +1082,18 @@ static int ssl_tls13_get_cipher_key_info(
}
#if defined(MBEDTLS_SSL_EARLY_DATA)
/* ssl_tls13_generate_early_keys() generates keys necessary for protecting the
early application and handshake messages described in section 7 RFC 8446. */
/*
* ssl_tls13_generate_early_key() generates the key necessary for protecting
* the early application data and the EndOfEarlyData handshake message
* as described in section 7 of RFC 8446.
*
* NOTE: That only one key is generated, the key for the traffic from the
* client to the server. The TLS 1.3 specification does not define a secret
* and thus a key for server early traffic.
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_tls13_generate_early_keys( mbedtls_ssl_context *ssl,
mbedtls_ssl_key_set *traffic_keys )
static int ssl_tls13_generate_early_key( mbedtls_ssl_context *ssl,
mbedtls_ssl_key_set *traffic_keys )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
@ -1104,7 +1111,7 @@ static int ssl_tls13_generate_early_keys( mbedtls_ssl_context *ssl,
const mbedtls_ssl_ciphersuite_t *ciphersuite_info = handshake->ciphersuite_info;
mbedtls_ssl_tls13_early_secrets *tls13_early_secrets = &handshake->tls13_early_secrets;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> ssl_tls13_generate_early_keys" ) );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> ssl_tls13_generate_early_key" ) );
ret = ssl_tls13_get_cipher_key_info( ciphersuite_info, &key_len, &iv_len );
if( ret != 0 )
@ -1170,16 +1177,15 @@ static int ssl_tls13_generate_early_keys( mbedtls_ssl_context *ssl,
goto exit;
}
MBEDTLS_SSL_DEBUG_BUF( 5, "client_handshake write_key",
MBEDTLS_SSL_DEBUG_BUF( 4, "client early write_key",
traffic_keys->client_write_key,
traffic_keys->key_len);
MBEDTLS_SSL_DEBUG_BUF( 5, "client_handshake write_iv",
MBEDTLS_SSL_DEBUG_BUF( 4, "client early write_iv",
traffic_keys->client_write_iv,
traffic_keys->iv_len);
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= ssl_tls13_generate_early_keys" ) );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= ssl_tls13_generate_early_key" ) );
exit:
@ -1195,10 +1201,10 @@ int mbedtls_ssl_tls13_compute_early_transform( mbedtls_ssl_context *ssl )
/* Next evolution in key schedule: Establish early_data secret and
* key material. */
ret = ssl_tls13_generate_early_keys( ssl, &traffic_keys );
ret = ssl_tls13_generate_early_key( ssl, &traffic_keys );
if( ret != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "ssl_tls13_generate_early_keys",
MBEDTLS_SSL_DEBUG_RET( 1, "ssl_tls13_generate_early_key",
ret );
goto cleanup;
}

10
library/ssl_tls13_keys.h
View file

@ -676,9 +676,13 @@ int mbedtls_ssl_tls13_calculate_verify_data( mbedtls_ssl_context *ssl,
* \returns \c 0 on success.
* \returns A negative error code on failure.
*
* \warning `early_secrets` is not computed before this function. Call
* mbedtls_ssl_tls13_key_schedule_stage_early() to generate early
* secrets.
* \warning The function does not compute the early master secret. Call
* mbedtls_ssl_tls13_key_schedule_stage_early() before to
* call this function to generate the early master secret.
* \note For a client/server endpoint, the function computes only the
* encryption/decryption part of the transform as the decryption/
* encryption part is not defined by the specification (no early
* traffic from the server to the client).
*/
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_tls13_compute_early_transform( mbedtls_ssl_context *ssl );