Implemented handling of DH Parameters Response and Finish attributes

Implemented calculating session secrets

2 files changed, 18 insertions, 0 deletions

diff --git a/src/libimcv/plugins/imc_attestation/imc_attestation.c b/src/libimcv/plugins/imc_attestation/imc_attestation.c
index 99fbdc1cf..101f59250 100644
--- a/src/libimcv/plugins/imc_attestation/imc_attestation.c
+++ b/src/libimcv/plugins/imc_attestation/imc_attestation.c
@@ -68,6 +68,12 @@ static linked_list_t *evidences = NULL;
 static pts_dh_group_t supported_dh_groups = 0;
 
 /**
+ * High Entropy Random Data
+ * used in calculation of shared secret for the assessment session
+ */
+static chunk_t responder_nonce;
+
+/**
  * see section 3.7.1 of TCG TNC IF-IMC Specification 1.2
  */
 TNC_Result TNC_IMC_Initialize(TNC_IMCID imc_id,
diff --git a/src/libimcv/plugins/imv_attestation/imv_attestation.c b/src/libimcv/plugins/imv_attestation/imv_attestation.c
index 87832a730..9f9131b3a 100644
--- a/src/libimcv/plugins/imv_attestation/imv_attestation.c
+++ b/src/libimcv/plugins/imv_attestation/imv_attestation.c
@@ -63,6 +63,12 @@ static pts_dh_group_t supported_dh_groups = PTS_DH_GROUP_NONE;
 static pts_dh_group_t supported_dh_groups = 0;
 
 /**
+ * High Entropy Random Data
+ * used in calculation of shared secret for the assessment session
+ */
+static chunk_t initiator_nonce;
+
+/**
  * PTS file measurement database
  */
 static pts_database_t *pts_db;
@@ -78,6 +84,11 @@ static pts_creds_t *pts_creds;
 static credential_manager_t *pts_credmgr;
 
 /**
+ * TRUE if DH Nonce Parameters Request attribute is sent
+ */
+static bool dh_nonce_req_sent = FALSE;
+
+/**
  * see section 3.7.1 of TCG TNC IF-IMV Specification 1.2
  */
 TNC_Result TNC_IMV_Initialize(TNC_IMVID imv_id,
@@ -474,6 +485,7 @@ TNC_Result TNC_IMV_Terminate(TNC_IMVID imv_id)
 	}
 	DESTROY_IF(pts_db);
 	DESTROY_IF(pts_credmgr);
+	free(initiator_nonce.ptr);
 
 	libpts_deinit();