Cryptography nerd

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Joined 1 year ago
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Cake day: January 18th, 2025

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  • It’s actually kinda easy. Neural networks are just weirder than usual logic gate circuits. You can program them just the same and insert explicit controlled logic and deterministic behavior. To somebody who don’t know the details of LLM training, they wouldn’t be able to tell much of a difference. It will be packaged as a bundle of node weights and work with the same interfaces and all.

    The reason that doesn’t work well if you try to insert strict logic into a traditional LLM despite the node properties being well known is because of how intricately interwoven and mutually dependent all the different parts of the network is (that’s why it’s a LARGE language model). You can’t just arbitrarily edit anything or insert more nodes or replace logic, you don’t know what you might break. It’s easier to place inserted logic outside of the LLM network and train the model to interact with it (“tool use”).
















  • What TPM does for automatic unlock when combined with secure boot is to record certain steps of the OS boot and check various file hashes, if they’re unchanged then it releases the decryption key. This doesn’t authenticate the user but it verifies disk integrity (making sure your OS boots normally without injected malware), so your login prompt security can’t easily be bypassed*

    * this does not prevent hardware based attacks like malicious RAM sticks or DMA attacks if the firmware isn’t patched

    Then you could also set up separate home folder encryption and tie unlock to entering your password at login, or for various types of automated logins you could use the TPM again, like through checking for presence of some device you carry (like a smartwatch, etc), or even use a physical security key with one touch login (preventing remote attacks)