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Relax HMAC computation check

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This KM4 key agreement check is causing some pain on early units
that aren't completely provisioned in both locked and non-Green
(unlocked) states.

This doesn't impact KM3 devices (Pixel 2016/2017 etc.)

Bug: 110301629
Change-Id: I5a737ac8a335863b1099c29cf3c0496adeb41e15
This commit is contained in:
Janis Danisevskis
2018-06-19 19:08:15 -07:00
committed by Chris Fries
parent f3d1d3aed3
commit a1c4e0ec5d
1 changed files with 4 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
keymaster/4.0/support/Keymaster.cpp
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@@ -164,10 +164,10 @@ static void computeHmac(const Keymaster::KeymasterSet& keymasters,
sharingCheck = curSharingCheck;
firstKeymaster = false;
}
CHECK(curSharingCheck == sharingCheck)
<< "HMAC computation failed for " << *keymaster //
<< " Expected: " << sharingCheck //
<< " got: " << curSharingCheck;
if (curSharingCheck != sharingCheck)
LOG(WARNING) << "HMAC computation failed for " << *keymaster //
<< " Expected: " << sharingCheck //
<< " got: " << curSharingCheck;
});
CHECK(rc.isOk()) << "Failed to communicate with " << *keymaster
<< " error: " << rc.description();