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natesales

HN member
Joined
Sun, Apr 17, 2022, 8:30 PM UTC
HN karma
94
Public activity
10 items

About natesales

co-founder @ tinfoil. systems/security/applied physics.

Recent public activity

  1. comment
    Comment #44002224

    All attestation verification happens client side. We have verifiers in Python [1] and Go [2] (which FFIs to our other SDKs like WASM and Swift). We push all the verification logic …

  2. comment
    Comment #44000103

    An attacker would need to compromise our build pipeline to publish a backdoored VM image [1] and extract key material to forge an attestation from the hardware [2]. The build proce…

  3. comment
    Comment #43997856

    We have to trust the hardware manufacturer (Intel/AMD/NVIDIA) designed their chips to execute the instructions we inspect, so we're assuming trust in vendor silicon either way. The…

  4. comment
    Comment #43997333

    The keys are generated on the CPU and never leave the enclave, but the data is decrypted on the CPU so it hits the registers in plaintext. When the enclave starts, the CPU does a f…

  5. comment
    Comment #43996903

    The verified trust boundary extends from the CPU to GPU [1], and TLS encrypts all data to/from the enclave and client so we can't see anything in the clear. HTTP parsing and applic…

  6. comment
    Comment #40902738

    AS34553 hosts my personal services (email, website, VM hosting, nuclear fusion reactor, etc). It's an "autonomous system" - the kind of network that enables announcing your own IP …

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