Diffie-Hellman Key Exchange
Definition - What does Diffie-Hellman Key Exchange mean?
This method allows two parties which have no prior knowledge of each other to establish a shared, secret key, even over an insecure channel.
The concept uses multiplicative group of integers modulo, which without knowledge of the private keys of any of the parties, would present a mathematically overwhelming task to a code breaker .
Techopedia explains Diffie-Hellman Key Exchange
The general idea of the Diffie-Hellmann key exchange involves two parties exchanging numbers and doing simple calculations in order to get a common number which serves as the secret key.
Both parties may not know beforehand what the final secret number is, but after some calculations, both are left with a value that only they know about which they can use for various purposes like identification and as a secret key for other cryptographic methods.
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