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Updating threat model with new section on TKey Unlocked

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Signed-off-by: Joachim Strömbergson <joachim@assured.se>
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Joachim Strömbergson 2023-08-30 11:23:54 +02:00 committed by dehanj
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doc/threat_model/threat_model.md
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@ -174,6 +174,21 @@ This threat model will be updated for each release of the TKey device.
For each version we describe what threats are in scope, what threats
are out of scope and what mitigations are in place.
### TKey Unlocked
Note that the trust model as desribed for the TK1-23.03.1-Bellatrix
release (see below) applies to TKey Unlocked devices as long as the
TKey has been provisioned with:
- the Tillitis TKey TK1-23.03.1-Bellatrix FPGA design and Tillitis TKey
firmware.
- A unique, random UDS
- A unique UDI
The configuration must have been written into the NVCM and
locked by blowing the fuses.
### TK1-23.03.1-Bellatrix
This is the first general release of the TKey TK1 end user device. In this