Passkeys, Crypto, and Signing AI Content

After the meteoric rise and fall of web3, Apple and Google might have shipped a real crypto-for-everyone product. You might have noticed a new way to sign in on Apple or Google — instead of using a password, you can opt for a passkey, a password-less type of authentication. You can use your fingerprint, face, screen lock, or hardware security key to log in.

Under the hood, it’s just crypto (as in cryptography). There’s a public and private key pair that’s generated. The private keys are used to

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