The Singing and Verifying Bitcoin Addressed in JavaScript
Bitcoin Addresses Unique 34-Character strings that are the repressive keys in the keys. . JavaScript.
Getting Started
Wallet’s private key off-to-player service like Electrum, Myetherwallet, or metamask. Fortunately off
`Javacript
// Get the Private Key
Async Function GetPrivatekey () {
Const url = '
Const response = Await Fetch (URL);
Const Privatekey = Await Response.text ();
The Return Json. parse (privatekey);
}
if
Functional Verifydress (Address, PrivateKey) {
// Convert the Private Themes
privatekeyhex = privatekey.tostring (16);
// Create a New SHA-256 Hash Object
Const hashobject = crypto.createhash ('sha256');
// Update the Has Object with the Bitcoin Address and Private Key
hashobject.update (address);
hashobject.update (privatekeyhex);
// Gene
Const hashhex = hashobject.digest ('hex');
// Compare the Resource Hash to Urable HASD Bitcoin Address
Return Hashhex == '000000000000 ..'; // Replace with your actual hash
if
Function Signmessage (Measures, Privatekey) {
Const key = crypto.createexsa ({
Namedcurve: 'sec256k1',
Publickey: Privatekey,
});
a return key.Sign (measure);
}
// Example usage:
Const message = 'Hello, Bitcoin!';
synst signedmessage = signmessage (measures, getprivatekey ());
console.log (verifydress (signedmessage, getprivatekey ());
}
Signing Messages Using Ecdsa
RSA or DSA or Ice-Public Key and the example code demonstrates how to do this:
`Javacript
// Create an RSA/ECDSA Pair (Replace with Your Actual Private Key)
Const privatekey = getprivatekey ();
The Bitcoin Machid of the Sub-set hash.
Sign and Verify Messages in JavaScript
Here’s a complete to the explete off how to sign and verify messages Esting Ecdsa:
“ Javacript
// Get the Private Key
Async Function GetPrivateKey () {
Const url = ‘
Const response = Await Fetch (URL);
Const Privatekey = Await Response.text ();
The Return Json. parse (privatekey);
}
// Create a New SHA-256 Hash Object
Const crypto = require (‘crypto’);
if
Function Signmessage (Measures, Privatekey) {
// Convert the Private Themes
privatekeyhex = privatekey.tostring (16);
// Create a New SHA-256 Hash Object
Const hashobject = crypto.createhash (‘sha256’);
// Update the Has Object with the Bitcoin Address and Private Key
hashobject.update (measures);
hashobject.update (privatekeyhex);
// Gene
Const Hashhex = Hashobject.