Greetings to all! Please explain how the Diffie-Hellman protocol works in Bitcoin?
That is, in Blockchain Transactions, there is also a total number of "K" recipient and sender? "K" the recipient and the sender are the same as in the photo scheme?
Maybe I'm confusing something, but I heard "K" is the secret number of the transaction.
If "X" is a private number. You can define "K" by the formula:
$$K = ((Z + (X \cdot R)) / S) \mod N$$
Suppose there is a transaction:
1MJT3tqXwzko6ACGYFdRmJbxosLC4VKD7w - sends BTC
18VGa5mEJyu5XrYD2MG8Xm6J1eJYrrShWW - receives BTC
Question what is their shared secret key ???
This is the Shared Secret Key for the address https://www.blockchain.com/btc/address/1MJT3tqXwzko6ACGYFdRmJbxosLC4VKD7w
So this Diffie-Hellman protocol turns out this Shared Secret Key is also for an address? https://www.blockchain.com/btc/address/18VGa5mEJyu5XrYD2MG8Xm6J1eJYrrShWW
But the question is how the owner of the address learns: 18VGa5mEJyu5XrYD2MG8Xm6J1eJYrrShWW about the existence of the Shared Secret Key ????