Does the TPM boost secure boot security?

• tpm2-totp

  5 149 0.0 C

  Attest the trustworthiness of a device against a human using time-based one-time passwords

  

You could also use TOTP for a kind of remote attestation (e.g., with your phone computing TOTP). In this setup, the CPU sends the timestamp to the TPM, and it returns the TOTP value. So instead of you looking at your phone to give the TOTP to a service provider to prove that you're in possession of your phone, the computer gives you a TOTP value to prove that it's in possession (inside the TPM, sealed to the boot chain hashes) of the TOTP secret, and you use your phone to verify this. A possible weakness (short of a full-blown TPM compromise) would be to send a bunch of forged timestamps to the TPM while your computer is running and store the resulting TOTP values, then tamper with Secure Boot and emit the precomputed TOTP corresponding to the current timestamp whenever you boot up your computer. But this would require running malicious code on your compute while you're logged in with the trusted boot chain.

• InfluxDB

  www.influxdata.com featured

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

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