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which of the following?

The Diffie-Hellman algorithm is primarily used to provide which of the following?

PrepAway - Latest Free Exam Questions & Answers

A.
Confidentiality

B.
Key Agreement

C.
Integrity

D.
Non-repudiation

Explanation:
Diffie–Hellman key exchange (D–H) is a specific method of securely exchanging cryptographic keys over a
public channel and was one of the first public-key protocols as originally conceptualized by Ralph Merkle. D–H
is one of the earliest practical examples of public key exchange implemented within the field of cryptography.
Traditionally, secure encrypted communication between two parties required that they first exchange keys by
some secure physical channel, such as paper key lists transported by a trusted courier. The Diffie–Hellman key
exchange method allows two parties that have no prior knowledge of each other to jointly establish a shared
secret key over an insecure channel. This key can then be used to encrypt subsequent communications using a
symmetric key cipher.
Incorrect Answers:
A: The Diffie-Hellman algorithm is not primarily used to provide confidentiality.
C: The Diffie-Hellman algorithm is not primarily used to provide integrity.
D: The Diffie-Hellman algorithm is not primarily used to provide non-repudiation.

https://en.wikipedia.org/wiki/Diffie–Hellman_key_exchange


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