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Question 1

What primary critique does Peter Gutmann's paper level against recent quantum factorization records?

They rely on sleight-of-hand numbers and prior computational work, not genuine quantum factorization. They have never tried factoring the number 15, which was the first quantum factorization challenge. They use too many qubits, making practical quantum factorization impossible with current hardware. They have all been performed by dogs, abacuses, or old home computers rather than real quantum devices.

Question 2

Why did the Notepad++ developer decide to sign releases with a self-signed root CA certificate?

Because code-signing certificates from commercial CAs expire in one month, requiring frequent renewal. Because acquiring traditional CA code-signing certificates has been prohibitively expensive and difficult for the open-source project. Because self-signed certificates are universally trusted by all antivirus programs and Windows systems. Because self-signed certificates are necessary to avoid triggering malware detection heuristics.

Question 3

What is the principal security concern that arises from installing the Notepad++ self-signed root certificate on a user's machine?

It exposes the user's private keys to attackers because the certificate is self-signed. It allows malware authors to remotely execute code on the user's machine without user interaction. It will automatically disable Windows Defender and other antivirus solutions on the user's device. It forms a dangerous precedent of installing powerful trust anchors from arbitrary sources, leading to unmanageable root CA stores.

Question 4

In the EFF's Cover Your Tracks browser fingerprinting test, why does having a rare screen resolution significantly increase your browser's identifiability?

Because most websites block users with uncommon screen resolutions due to compatibility issues. Because uncommon screen resolutions greatly reduce the anonymity set size, making your fingerprint unique among many browsers. Because rare screen resolutions disable browser privacy protections by default. Because the screen resolution can be used to inject malicious JavaScript specific to the display.

Question 5

Which key property distinguishes zero-knowledge proofs from knowledge-based proofs as explained in the episode?

The prover reveals all underlying information proving the assertion to the verifier. Zero-knowledge proofs only apply to quantum computing protocols and are not used in classical cryptography. The verifier learns only that the assertion is true, without gaining any other information about the assertion itself. The verifier can subsequently prove the assertion to any third party easily using the proof.

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Episode #1034 Quiz

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