The statement “Security functions by pairing one public with another to authenticate users” is:

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Multiple Choice

The statement “Security functions by pairing one public with another to authenticate users” is:

Explanation:
Authentication with public-key cryptography uses a key pair: a private key kept secret and a public key shared openly. You prove you own the private key by signing or decrypting data that the public key can verify. Pairing two public keys wouldn’t establish identity because nothing secret is demonstrated, since both keys are public. So the statement is false—the correct idea is pairing a private key with a public key to authenticate.

Authentication with public-key cryptography uses a key pair: a private key kept secret and a public key shared openly. You prove you own the private key by signing or decrypting data that the public key can verify. Pairing two public keys wouldn’t establish identity because nothing secret is demonstrated, since both keys are public. So the statement is false—the correct idea is pairing a private key with a public key to authenticate.

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