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var Wallet = require('ethereumjs-wallet');

// 新たなウォレットを生成
const wallet = Wallet.generate();

// ウォレットの秘密鍵を取得
const privateKey = wallet.getPrivateKeyString();                                                                                                                                                                                                                                                               
console.log(privateKey);

// ウォレットの公開鍵を取得

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npm install ethereumjs-wallet --save

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chmod 755 install_node.sh
./install_node.sh

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cat > install_node.sh <<EOF
#!/bin/sh
sudo apt-get install -y nodejs npm
sudo npm cache clean
sudo npm install n -g
sudo n stable
sudo ln -sf /usr/local/bin/node /usr/bin/node
sudo ln -sf /usr/local/bin/npm /usr/bin/npm
sudo apt-get purge -y nodejs npm
EOF

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cat > /Volumes/boot/wpa_supplicant.conf <<EOF
country=JP
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
network={
  ssid="SSID"
  psk=YOUR_PSK
}
EOF

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ssh pi@raspberrypi.local

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node -e "console.log(require('crypto').pbkdf2Sync('PASSWORD','SSID',4096,32,'sha1').toString('hex'))"

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touch /Volumes/boot/ssh

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// npm install eth-crypto --save
const EthCrypto = require('eth-crypto');

const privateKey = '0x61ce8b95ca5fd6f55cd97ac60817777bdf64f1670e903758ce53efc32c3dffeb';

const encryptedMessage = {
	iv: '3c12aa4bdbb6219479eb0ebe62ee908f',
	ephemPublicKey: '04f70ca0c9e6741c8709de1cfec75f980823dd753b9c1a87cc4afbfdf44707b1830c0385b0fa808fa18f55a5f7551370242d95cd61546823fda2f73d26e1906a81',
	ciphertext: 'a21abfac3a44ca4c22bdfb23a97a115f',
	mac: 'b4d282d05422672689bd1027c948b2189dc52e7f9101e753be6fb3df844572c4'

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// npm install eth-crypto --save
const EthCrypto = require('eth-crypto');
 
const publicKey = 'fff49b58b83104ff16875452852466a46c7169ba4e368d11830c9170624e0a9509080a05a38c18841718ea4fc13483ac467d3e2d728d41ff16b73b9c943734f8';
const message = "piyo!";

(async() => {
	const encryptedMessage = await EthCrypto.encryptWithPublicKey(publicKey, message);
	console.log(encryptedMessage);
})();