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Improved implementation of Read PCR/ Extend PCR/ Quote_TPM functions

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Implemented creating/handling of Simple Evidence Final attribute (incomplete)
This commit is contained in:
Sansar Choinyambuu
2011-11-28 14:34:21 +01:00
committed by Andreas Steffen
parent e1aebc940a
commit 924f3bf59e
4 changed files with 101 additions and 28 deletions
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src/libimcv/plugins/imv_attestation/imv_attestation.c
+24 -2
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@@ -750,9 +750,31 @@ TNC_Result TNC_IMV_ReceiveMessage(TNC_IMVID imv_id,
case TCG_PTS_SIMPLE_EVID_FINAL:
{
/** TODO: Implement construct Quote structure over saved values from
* TCG_PTS_SIMPLE_COMP_EVID and compare with received one
tcg_pts_attr_simple_evid_final_t *attr_cast;
pts_simple_evid_final_flag_t flags;
chunk_t pcr_comp = chunk_empty;
chunk_t tpm_quote_sign = chunk_empty;
chunk_t evid_sign = chunk_empty;
/** TODO: Ignoring Composite Hash Algorithm field
* No flag defined which indicates the precense of it
*/
attr_cast = (tcg_pts_attr_simple_evid_final_t*)attr;
flags = attr_cast->get_flags(attr_cast);
if ((flags >> 6) & PTS_SIMPLE_EVID_FINAL_FLAG_NO)
{
pcr_comp = attr_cast->get_pcr_comp(attr_cast);
tpm_quote_sign = attr_cast->get_tpm_quote_sign(attr_cast);
/** TODO: Construct PCR Composite */
}
if (flags & PTS_SIMPLE_EVID_FINAL_FLAG_EVID)
{
/** TODO: What to do with Evidence Signature */
evid_sign = attr_cast->get_evid_sign(attr_cast);
}
break;
}