Using Titan Security Key To Generate An Ethereum Wallet

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Using Titan Security Key To Generate An Ethereum Wallet Login
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{

'require': {

'sop/asn1': '^3.3',

'sop/crypto-encoding': '^0.2.0',

'sop/crypto-types': '^0.2.1',

'kornrunner/keccak': '^1.0',

'symfony/dotenv': '^4.0',

'sc0vu/web3.php': 'dev-master'

}

GenerateEthereumWallet.php

<?php

require_once'vendor/autoload.php';

useSopCryptoTypesAsymmetricECECPublicKey;

useSopCryptoTypesAsymmetricECECPrivateKey;

useSopCryptoEncodingPEM;

use kornrunnerkeccak;

$config = [

'private_key_type' => OPENSSL_KEYTYPE_EC,

'curve_name' => 'secp256k1'

];

$res = openssl_pkey_new($config);

if (!$res) {

echo'ERROR: Fail to generate private key. -> ' . openssl_error_string();

exit;

}

// Generate Private Key

openssl_pkey_export($res, $priv_key);

// Get The Public Key

$key_detail = openssl_pkey_get_details($res);

$pub_key = $key_detail['key'];

$priv_pem = PEM::fromString($priv_key);

// Convert to Elliptic Curve Private Key Format

$ec_priv_key = ECPrivateKey::fromPEM($priv_pem);

// Then convert it to ASN1 Structure

$ec_priv_seq = $ec_priv_key->toASN1();

// Private Key & Public Key in HEX

$priv_key_hex = bin2hex($ec_priv_seq->at(1)->asOctetString()->string());

$priv_key_len = strlen($priv_key_hex) / 2;

$pub_key_hex = bin2hex($ec_priv_seq->at(3)->asTagged()->asExplicit()->asBitString()->string());

$pub_key_len = strlen($pub_key_hex) / 2;

// Derive the Ethereum Address from public key

// Every EC public key will always start with 0x04,

// we need to remove the leading 0x04 in order to hash it correctly

$pub_key_hex_2 = substr($pub_key_hex, 2);

$pub_key_len_2 = strlen($pub_key_hex_2) / 2;

// Hash time

$hash = Keccak::hash(hex2bin($pub_key_hex_2), 256);

// Ethereum address has 20 bytes length. (40 hex characters long)

// We only need the last 20 bytes as Ethereum address

$wallet_address = '0x' . substr($hash, -40);

$wallet_private_key = '0x' . $priv_key_hex;

echo'rn ETH Wallet Address: ' . $wallet_address;

echo'rn Private Key: ' . $wallet_private_key;

Mar 07, 2019 When using them to access your wallet, you are exposing your private key to phishers who could use it to drain your funds. Using MEW offline is the only truly secure way to make use of them directly. Aug 15, 2017 Simple script collection, currently in bash and python format, to generate a complete offline Ethereum wallet by creating an ECDSA keypair and derive its Ethereum address.

commented Feb 10, 2020

I am getting this error :
PHP Fatal error: Uncaught Error: Class 'kornrunnerkeccak' not found in /var/www/html/BS/index.php:50

Simple script collection, currently in bash and python format, to generate a complete offline Ethereum wallet by creating an ECDSA keypair and derive its Ethereum address.

You can read my article about it here: https://kobl.one/blog/create-full-ethereum-keypair-and-address/

Generate keys If needed, download PuTTYgen from the PuTTY download page. Launch the program, and then click the Generate button. The program generates the keys for you. Enter a unique key passphrase in the Key passphrase and Confirm passphrase fields. Save the public and private keys by clicking. To generate the public/private key pair, enter this in the Command Prompt: ssh-keygen At the first prompt, “Enter file in which to save the key,” press Enter to save it in the default location. Generating Public and Private Keys with openssl.exe. To perform the following actions for Windows or Linux, you must have OpenSSL installed on. Open the Command Prompt ( Start Programs Accessories Command Prompt ). Navigate to the following folder: C:Program. To generate key pair just use New-SelfSignedCertificate cmdlet, then you can use generated certificate to encrypt/decrypt data using Protect/Unprotect-CmsMessage (this is PGP-like cmdlets, meaning you don't have to deal with symmetric key part yourself). Then to share or move keys to other machines you can use Import/Export-Certificate cmdlets. PuTTY Key Generator is a dedicated key generator software for Windows. You can generate RSA key pair as well as DSA, ECDSA, ED25519, or SSH-1 keys using it. You can generate RSA key pair as well as DSA, ECDSA, ED25519, or SSH-1 keys using it. Advantages of private key encryption.

IMPORTANT The python version of this script has been updated to support mixed-case checksum address encoding through EIP55.

Python dependencies

ECDSA https://pypi.python.org/pypi/ecdsa
pysha3 https://pypi.python.org/pypi/pysha3

You can also use the included requirements.txt file to install them

Bash dependencies