[keymgr] Verify entropy from EDN is used correctly
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Component:DV
Earlgrey-PROD Candidate
IP:keymgr
Milestone:V3
Priority:P2
Subsystem:Entropy
Type:Task
- Dominant language
- SystemVerilog
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Description
@tjaychen
As we discussed, it's good to prove EDN data are used to wipe the secrets in keymgr.
> EDN -> LFSR -> used to wipe secret/data output
From EDN to the input of LFSR, we can check EDN data are sent to LSFR as seeds. But after LFSR, the value is scrambled. Sometimes, it's constantly scrambled for a period of time. Hence it's hard for DV to predict the correct outcome.
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