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Add set outbound transform

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Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
This commit is contained in:
Jerry Yu 2022-05-05 10:19:22 +08:00
parent 9da5e5a2f2
commit e110d258d9
4 changed files with 93 additions and 91 deletions
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55
library/ssl_tls13_keys.c
View file

@ -27,6 +27,7 @@
#include "mbedtls/hkdf.h"
#include "mbedtls/debug.h"
#include "mbedtls/error.h"
#include "mbedtls/platform.h"
#include "ssl_misc.h"
#include "ssl_tls13_keys.h"
@ -1510,4 +1511,58 @@ int mbedtls_ssl_tls13_generate_application_keys(
return( ret );
}
int mbedtls_ssl_tls13_set_handshake_transform( mbedtls_ssl_context *ssl )
{
int ret;
mbedtls_ssl_key_set traffic_keys;
mbedtls_ssl_transform *transform_handshake = NULL;
mbedtls_ssl_handshake_params *handshake = ssl->handshake;
/* Compute handshake secret */
ret = mbedtls_ssl_tls13_key_schedule_stage_handshake( ssl );
if( ret != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_tls13_derive_master_secret", ret );
goto cleanup;
}
/* Next evolution in key schedule: Establish handshake secret and
* key material. */
ret = mbedtls_ssl_tls13_generate_handshake_keys( ssl, &traffic_keys );
if( ret != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_tls13_generate_handshake_keys",
ret );
goto cleanup;
}
transform_handshake = mbedtls_calloc( 1, sizeof( mbedtls_ssl_transform ) );
if( transform_handshake == NULL )
{
ret = MBEDTLS_ERR_SSL_ALLOC_FAILED;
goto cleanup;
}
ret = mbedtls_ssl_tls13_populate_transform( transform_handshake,
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;
}
handshake->transform_handshake = transform_handshake;
cleanup:
mbedtls_platform_zeroize( &traffic_keys, sizeof( traffic_keys ) );
if( ret != 0 )
{
mbedtls_free( transform_handshake );
}
return( ret );
}
#endif /* MBEDTLS_SSL_PROTO_TLS1_3 */