He’s an articacy on Etheeum HD wallet addresses fram a master key:
Deriving HD Wallet Address for Master Public Key
As a developer work with Ethereum or or another blockchain platforms, you may need to create transactions tovolving HD (Hyper-Local Decentralized) wallet addresses. Howver, ilf’s don’t access to the private keysociated with addresses, creating a transaction report report can challenge.
In thist art, we’ll explore how to drain HD wallet addresses from a master key and provide service service API your requirements.
What are Etherum HD Wallet Address?*
Before diving into the solution, let’s review what Ethereum HD wallet addresses are. A HD wallet addresses is composed of three keys:
- ‘Moster Public Key)
- r (Learly Public Key)
- ’s (Siming Public Key)
The public key (who) served by the input of creating HD wallets addresses, and the resulting addresses can use to send or receptive Ether on the Etherereum network.
Deriving HD Wallet Address for Master Public Key
To deriving an HD wallet address a mastery saying, you’ll need to use the Ellipistic Curve Digital Cingature of Algorithm (ECDSA) with the sacp2566k1’ curve. She’s a step-by-step there:
- Load the m (master public key) will be variable.
- Convert the value to an ECDSA private key uses the eccdh_sep2566k1 function of library.
- I am a private complaint the corresponding HD wallet addressing the ecdhhorv2′ function.
He’s some sample code in JavaScript:
const elliptic = require(’elliptic’);
const ECDSA = elliptic.ec;
// Load master public key (m)
const masterPubKey = . . // load frug load or input
// Convert t to ECDSA private key
constividless privateKy = beat ECDSA.from PubKy.
curve: ‘sect2566k1’,
^)
// Derive HD wallet address
continue hydress = await elliptic.hodardov2(privateKey.or, privateKy.s.s);
console.log(hdAddress); // output: the derived HD wallet address
`s
Service API for deriving HD Wallet Address
All service API also certify your requirements, you can build the tissue. She’s a exam of the API:
ovasscript
////Import required dependence
const elliptic = require(’elliptic’);
const ECDSA = elliptic.ec;
const HDWalletAdsDeriver = require(’./hda-derive’);
// Defining a new class ate extension of the alignment.
Class HDWalletAddrever {
asc derive HdWalletAddress(masterPubKey) {
/// Convert master public key to ECDSA private key
constividless privateKy = beat ECDSA.from PubKy.
curve: ‘sect2566k1’,
^)
// Drive HD wallet address sing the private key
continue hydress = await elliptic.hodardov2(privateKey.or, privateKy.s.s);
returned by the hydress;
}
}
// Create an instance of the HDWalleletAdressDeriver’ class
const hdWalletAdsDeriver = new HDWalletAdrevesDeriver();
// Define API endpoints for direct HD wallet addresses
/// Endpoint to leave with HD wallet address a mastery key
POST /derive-hd-wallet-dress/:sterist PubKey HTTP/1.1
{
Content-Type: application/json
}
// API endpoint to get the dead HD wallet address
GET /deive-hd-dreet-dress HTTP/1.1
{
Acception: application/json
}
`s
Imple Use Cases
*
To use this service API, you can sensive a POST request to the corporation to the corporation of the vetune-walle-dresses’ endpoint with the public key as input:
` ! you'
cur -X POST \
http:/localhost:3000/drew-dress/dress/masterPubKey \
-H 'Conent-Type: application/json’ \
-d '' masterPubKy": ".
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