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Which of the following should be used?

An agent wants to create fast and efficient cryptographic keys to use with Diffie-Hellman without using prime
numbers to generate the keys. Which of the following should be used?

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A.
Elliptic curve cryptography

B.
Quantum cryptography

C.
Public key cryptography

D.
Symmetric cryptography

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One Comment on “Which of the following should be used?

  1. meac says:

    Diffie-Hellman is an algorithm used to establish a shared secret between two parties.
    It is primarily used as a method of exchanging cryptography keys for use in symmetric encryption algorithms like AES.
    As far as I know Diffie-Hellman is a method to exchange a key to be used with a symmetric cryptographic algorithm, so it falls very naturally in the area of symmetric key cryptography.

    In addition to that, A, B and C are asymmetric.

    As a memorization tool:
    • Mr Diffie and Mr Hellman always SHARED SECRETS between them
    • Mr Diffie kept 50% of Secrets. Mr. Hellman kept 50% of secrets. So they are perfectly balanced and SYMETRIC when it comes to shared secrets.




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