#20unit 1technology solutions

Public key encryption

Asymmetric encryption with key pairs.

Unit 1Technology SolutionsTopic #20Published

Public key encryption

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Public key cryptography (asymmetric cryptography), invented by Diffie and Hellman in 1976, uses two mathematically related digital keys — a public key and a private key — to solve the key-exchange problem of symmetric encryption.

  • Define public key cryptography and identify its inventors.
  • Explain how public and private keys are used together.
  • Describe one-way (irreversible) mathematical functions.
  • Identify what problem public key cryptography solves.