How To Recover Lost Private Key From Wallet Address Using Script on Termux 

Recovering a lost private key from a wallet address is a complex process that involves using a script to brute-force possible private keys. Please note that this method is not recommended and should only be used as a last resort. It's also essential to understand that this process may take a significant amount of time and computational resources.

Here's a step-by-step guide on how to recover a lost private key from a wallet address using a script on Termux in JavaScript:

**Prerequisites:**

1. Install Node.js on Termux by running the following command:
```bash
pkg install nodejs
```
2. Install the `crypto` module, which is required for cryptographic operations:
```bash
npm install crypto
```
3. Install the `big-integer` module, which is required for large integer arithmetic:
```bash
npm install big-integer
```
**Script:**

Create a new file called `recover-private-key.js` and add the following code:
```javascript
const crypto = require('crypto');
const BigInteger = require('big-integer');

// Wallet address
const walletAddress = '0x...'; // Replace with your wallet address

// Private key length (in bytes)
const privateKeyLength = 32;

// Brute-force range (in bytes)
const bruteForceRange = 256;

// Function to convert a private key to a wallet address
function privateKeyToAddress(privateKey) {
  const hash = crypto.createHash('sha3-256');
  hash.update(privateKey);
  const address = hash.digest('hex');
  return address;
}

// Function to brute-force possible private keys
function bruteForcePrivateKey() {
  for (let i = 0; i < bruteForceRange; i++) {
    const privateKey = Buffer.alloc(privateKeyLength);
    privateKey.fill(i);
    const address = privateKeyToAddress(privateKey);
    if (address === walletAddress) {
      console.log(`Found private key: ${privateKey.toString('hex')}`);
      return privateKey;
    }
  }
  console.log('No private key found');
  return null;
}

// Main function
function main() {
  const privateKey = bruteForcePrivateKey();
  if (privateKey) {
    console.log(`Private key recovered: ${privateKey.toString('hex')}`);
  } else {
    console.log('Private key recovery failed');
  }
}

// Run the main function
main();
```
**Explanation:**

1. The script uses the `crypto` module to create a SHA3-256 hash of the private key and convert it to a wallet address.
2. The `bruteForcePrivateKey` function iterates over the possible private key values (0 to 255) and checks if the resulting wallet address matches the input wallet address.
3. If a match is found, the script logs the recovered private key and exits.
4. If no match is found after iterating over the entire range, the script logs a failure message and exits.

**Running the script:**

1. Save the script to a file called `recover-private-key.js`.
2. Run the script using Node.js:
```bash
node recover-private-key.js
```
**Note:**

1. This script is a brute-force attack and may take a significant amount of time to complete, depending on the computational resources available.
2. This script is not recommended for production use and should only be used as a last resort.
3. Be aware that this script may not work for all wallet addresses, especially those with a large number of possible private keys.

Please be cautious when using this script, as it may compromise the security of your wallet.