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aead

AI security interview questions tagged aead, across every topic.

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Concepts behind "aead"

Explanations of the mechanisms these questions rely on.

Foundational
Cryptography & PKI
Symmetric Encryption and AEADSymmetric encryption uses one secret key to encrypt and decrypt. On its own it hides content but does not detect tampering, which has caused real attacks. Authenticated encryption with associated data (AEAD), such as AES-GCM or ChaCha20-Poly1305, encrypts and attaches a tag that makes any modification fail to decrypt. Its one hard rule is that a nonce must never repeat under the same key.
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