#ETHEREUM WALLET ADDRESS CODE#

Now, thereвЂ™s a little catch: a string, say, 4f3c does not equal the byte array 4f3c. Cryptographic methods in Python work with a вЂњbytesвЂќ class, taking it as input and returning it as the result. The first is a string and the second is a byte array. In Python, there are at least two classes that can keep the private and public keys: вЂњstrвЂќ and вЂњbytesвЂќ. This is relevant more to the Python and less to the algorithm itself, but I will explain what are we doing here to remove possible confusion.

#ETHEREUM WALLET ADDRESS CODE#

Note: as you can see from the code above, I used a method from the ecdsa module and I decoded the private key using codecs.

In Python, it would look like this: private_key_bytes = code(private_key, вЂhexвЂ™) # Get ECDSA public key key = _string(private_key_bytes, curve=ecdsa.SECP256k1).verifying_key key_bytes = key.to_string() key_hex = codecs.encode(key_bytes, вЂhexвЂ™) If you want to learn more about Elliptic Curve Cryptography, IвЂ™ll refer you to this article.Д®thereum uses the same elliptic curve, secp256k1, so the process to get the public key is identical in both cryptocurrencies.Д«y applying the ECDSA to the private key, we get a 64-byte integer, which is two 32-byte integers that represent X and Y of the point on the elliptic curve, concatenated together.ДЇor our example, we got 1e7bcc70c72770dbb72fea022e8a6d07f814d2ebe4de9ae3f7af75bf706902a7b73ff919898c836396a6b0c96812c3213b99372050853bd1678da0ead14487d7. There is a whole family of such curves that are widely known and used. An elliptic curve is a curve defined by the equation yВІ = xВі + ax + b with chosen a and b. The first thing we need to go is to apply the ECDSA, or Elliptic Curve Digital Signature Algorithm, to our private key. This part is almost identical to what we discussed in the Bitcoin article, so if you read that one, you can skip it (unless you need a refresher). We need to apply one hash function to get the public key and another one to get the address. Here, weвЂ™ll use that key to get the public address and then the Ethereum wallet address of that private key.Д¬reating the Bitcoin wallet address from the private key is a bit complicated. The same mechanism is valid in case a message was received: this system will allow seeing all the messages that reached the address and, why not, replace the traditional services as all spam emails will be eliminated.In the first article of this series, we generated a bitcoin private key: 60cf347dbc59d31c1358c8e5cf5e45b822ab85b79cb32a9f3d98184779a9efc2. Here we have sent a message to the address known as Black Hole, so when someone ever manages to get hold of that address they can read the message and, who knows, reply. Once the message is written, simply press the вЂњSendвЂќ button and the message will send without problems. In the recipient field, itвЂ™s necessary to enter first the ETH address and then it is also possible to send a message to an ENS name: in this case, in the recipient field, we must first enter the ENS name followed by is also the possibility to send a message to a domain of Unstoppable Domains: in this case, in the recipient field, it is necessary to enter the domain name followed by email can be accompanied by a file of a maximum of 5 Mb. To send a new message first click on вЂњNew MessageвЂќ, write it and enter the senderвЂ™s address. Here there are also all the various buttons such as those for sending new messages, contacts, and one to buy crypto thanks to the connection with Ramp Instant. The interface is quite simple and it can be modified and set according to needs thanks to the settings button that can be found on the side menu.

The other one is not active yet, but it is easy to imagine that an NFT (Non Fungible Token) token will be used to connect and secure the mailbox since it will be possible to access it only with that NFT.ДЄt this point, simply click on the вЂњUsing Ethereum AddressвЂќ button and confirm the transaction, i.e. Here there will be a simple screen with only 2 buttons, of which only one works: вЂњUsing Ethereum AddressвЂќ.

The first step is to unlock the MetaMask wallet and connect to this website. a wallet that operates the Ethereum blockchain, for example, MetaMask.Two things are required before proceeding: text messages and more, to an ETH address, in a simple way and without any cost or advertising. This is the platform, which allows sending and receiving emails, i.e. In fact, a new system of email addresses directly linked to an Ethereum address has been developed, so it will be enough to know a personвЂ™s email to send our message as well as ETH. Thanks to the blockchain, in particular to Ethereum, new tools have been developed in different areas, such as Unstoppable Domains or decentralized email addresses.