Privacy

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A place to discuss privacy and freedom in the digital world.

Privacy has become a very important issue in modern society, with companies and governments constantly abusing their power, more and more people are waking up to the importance of digital privacy.

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Signal under fire for storing encryption keys in plaintext on desktop app (stackdiary.com)

submitted 4 months ago by ForgottenFlux to c/[email protected]

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[–] [email protected] 1 points 4 months ago* (last edited 4 months ago) (1 children)

If the hardware signatures don't match

Compromised hardware will say it is same hardware

If the TPM/Secure Enclave is replaced/removed/modified, it will not boot without giving a warning.

Compromised hardware controls execution of software. Warning is done in software. Conpromised hardware won't let it happen.

[–] 9tr6gyp3 1 points 4 months ago (1 children)

Compromised hardware doesn't know the signatures. Math.

[–] [email protected] 1 points 4 months ago (1 children)

Compromised hardware can't create new signatures, but it doesn't matter because it controls execution of software and can skip any checks.

[–] 9tr6gyp3 1 points 4 months ago (1 children)

If the hardware is tampered, it will not pass the attestation test, which is an online component. It will fail immediately and you will be alerted. Thats the part of verified boot that makes this so much harder for adversaries. They would have to compromise both systems. The attestation system is going to be heavily guarded.

[–] [email protected] 1 points 4 months ago* (last edited 4 months ago) (1 children)

which is an online component.

So, storing on Signal's server key to decrypt keys. Welcome back to apple-isms and online-only.

It will fail immediately and you will be alerted.

Provided you have some other non-compromised way of communications.

[–] 9tr6gyp3 1 points 4 months ago

Yes, verified boot will have out-of-bands alerts for you by design. Without the online component, you will risk not being able to detect tampering.