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32 lines
1.2 KiB
32 lines
1.2 KiB
1 year ago
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From b94392537a1ed43918483a2bfa8a90e5fd05354d Mon Sep 17 00:00:00 2001
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From: Stefan Thom <mail@LordOfDorks.com>
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Date: Fri, 5 Jun 2020 12:11:39 -0700
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Subject: [PATCH 2/4] esys: Shared secret calculation is not spec compliant.
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Refer to specification part 1 Architecture, Section 20.1 AuditSession
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Introduction: If the session was bound when created (see 19.6.10 and
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19.6.12), the bind value is lost and any further use of the session for
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authorization will require that the authValue be used in the HMAC.
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Signed-off-by: Stefan Thom <mail@LordOfDorks.com>
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---
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src/tss2-esys/esys_tr.c | 2 ++
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1 file changed, 2 insertions(+)
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diff --git a/src/tss2-esys/esys_tr.c b/src/tss2-esys/esys_tr.c
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index c9ea537a..d14c7d35 100644
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--- a/src/tss2-esys/esys_tr.c
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+++ b/src/tss2-esys/esys_tr.c
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@@ -511,6 +511,8 @@ Esys_TRSess_SetAttributes(ESYS_CONTEXT * esys_context, ESYS_TR esys_handle,
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esys_object->rsrc.misc.rsrc_session.sessionAttributes =
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(esys_object->rsrc.misc.rsrc_session.
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sessionAttributes & ~mask) | (flags & mask);
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+ if (esys_object->rsrc.misc.rsrc_session.sessionAttributes & TPMA_SESSION_AUDIT)
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+ esys_object->rsrc.misc.rsrc_session.bound_entity.size = 0;
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return TSS2_RC_SUCCESS;
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}
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--
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2.41.0
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