An example of a key MEMORANDUM of understanding is the key exchange of Diffie Hellman. In DH, both parties influence the resulting key and not just one part. The key is agreed upon by all parties involved. 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. 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. A key transport protocol or mechanism is a key installation technique in which a party creates or obtains a secret value (for example. B by generating one key itself) and safely transferring it to the other. Could someone please explain in simple terms what is the difference between the generation of keys and the key agreement? In what situation I would use it.
For a complete transport of symmetrical keys, the symmetrical key is created from a random number generator. This is then signed with the owner`s static private key, then encrypted with the recipient`s static public key (key change) and sent to the recipient. The recipient receives, decrypts and verifies the signature, and the symmetrical key is set. While a key tuning algorithm such as ECDH (E) or DH (E) is not required, an asymmetrical code like RSA is required. This is called the Key Management System (KEM) and requires an asymmetrical encryption algorithm for key change. A key protocol or mechanism is a key method for installation, in which a common secret is derived from two or more parts as a function of information provided (ideally) by each of that information, so that no party can determine in advance the resulting value. In this process, the key is manufactured in a collaborative manner, so both parties have the key. In key cryptographic equipment (key exchange, key negotiation), there is a process or protocol, with a common secret for two parties, for the next cryptographic use, usually for encrypted communications. Operating techniques can be key agreements or important transportation systems. Key equipment can be roughly divided into key traffic and key agreements.
Examples of key exchange systems: Diffie-Hellman (DH) and Elliptic-curve Diffie-Hellman (ECDH), RSA-OAEP and RSA-KEM (key transport RSA), PSK (preinstalled key) ), SRP (Secure Remote Password protocol), FHMQV (Fully Hashed Menezes-Qu-Vanstone), ECMQV (Ellictic-Curve Menezes-Qu-Vanstone) and CECPQ1 (quantum-safe key agreement).