Multiple choice technology architecture

What is public key cryptography?

  1. Public Key Cryptography (PKC) uses two keys, a "public key" and a "private key", to implement an encryption algorithm that doesn't require two parties to first exchange a secret key in order to conduct secure communications

  2. Cryptography method which uses Public key for encryption and de-cryption of the message

  3. Choice 2 is correct

  4. Choice 1 and 2 is correct
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A Correct answer
Explanation

Public Key Cryptography (PKC) uses a key pair - a public key for encryption and a private key for decryption. The public key can be freely shared, while the private key must be kept secret. This eliminates the need for parties to exchange a secret key beforehand, solving the key distribution problem in symmetric cryptography.

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