Many key exchange systems have a part that generates the key and simply sends that key to the other party — the other party has no influence on the key. The use of a key MEMORANDUM of understanding avoids some of the major distribution problems associated with these systems. en.wikipedia.org/wiki/Key-agreement_protocol key agreement refers to a form of key exchange (see also the encryption key) in which two or more users run a protocol in order to securely release a resulting key value. An important transport protocol can be used as an alternative to the key agreement. The distinguishing feature of a key MOU is that participating users contribute equally to the calculation of the resulting common key value (unlike a user who calculates and distributes a key value to other users). Authenticated Key Exchange (EFT) is the exchange of session keys in a key exchange protocol that also authenticates the identities of the parties involved (for example. B, a password, a public key or a digital certificate). If you. B you connect to a password-protected WiFi network, an authenticated key protocol for the agreement is used, in most cases the agreement with the keys authenticated by the password (PAKE). If you connect to a public wi-fi network, an anonymous key agreement is put in place. The original and still most famous protocol for the key agreement was proposed by Diffie and Hellman (see the key agreement Diffie Hellman) as well as their concept of cryptography with public keys. Basically, Alice and Bob users send key public values through an uncertain channel.
Based on the knowledge of the corresponding private keys, they are able to correctly and safely calculate a common key value. An earpiece, however, is not capable of this key with only the knowledge of… The first public public key memorandum of understanding  that meets the above criteria was the Diffie-Hellman key exchange, in which two parties jointly exposed a generator to random numbers, so that an earpiece cannot easily determine what the resulting value is used to create a common key. The most important agreement is that the key source must be such that at the end of the process, two specific entities know the key and only these. A perfect example is the Diffie-Hellman protocol, in which both parties use randomness to create data elements, exchange some of these elements, and make some calculations that end up getting the same result, while external observers are not impressed.