The Diffie-Hellman key exchange is a method
for two parties to generate a shared secret key
that can be used to encrypt their messages to each other.
It uses mathematical calculations to generate the shared secret key, and the binary representation of the hidden numbers is not fixed and can be randomly chosen.
To begin the key exchange
, the parties first agree upon a prime number and a primitive root
, which are used to calculate the shared secret key.
Each party then chooses a personal number, which is kept private,
to calculate a public value shared with the other party.
After exchanging their public values,
each party uses their secret number
and the other party’s public value to calculate a shared secret key.
This shared private key can then encrypt messages between the two parties.
In summary, the Diffie-Hellman key exchange
is a secure way for two parties
to generate a shared secret key to encrypt their messages.
By following the steps of the key exchange,
the parties can develop a shared secret key
that cannot be easily intercepted or decrypted by a third party
. It is essential to choose a large and random prime number
and to keep the secret numbers private to maintain the security of the shared secret key.
Diffie–Hellman key exchange. (2023, February 5). In Wikipedia. https://en.wikipedia.org/wiki/Diffie%E2%80%93Hellman_key_exchange
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