GPG Encryption

gpg.js

const fs = require('fs');
const openpgp = require('openpgp');

// Generate a new key pair (public key and private key)
const { privateKeyArmored, publicKeyArmored } = await openpgp.generateKey({
  type: 'rsa',
  userIDs: [{ name: 'John Doe', email: 'johndoe@example.com' }],
  passphrase: 'mySecretPassphrase',
});

// Alice encrypts a file for Bob using his public key
const fileContents = fs.readFileSync('/path/to/myfile.csv');
const encryptedFile = await openpgp.encrypt({
  message: openpgp.message.fromBinary(fileContents),
  publicKeys: (await openpgp.key.readArmored(publicKeyArmored)).keys,
});

// Save the encrypted file to disk
fs.writeFileSync('/path/to/myfile.gpg', encryptedFile.data);

// Bob decrypts the encrypted file using his private key
const encryptedFileContents = fs.readFileSync('/path/to/myfile.gpg');
const decryptedFile = await openpgp.decrypt({
  message: await openpgp.message.readArmored(encryptedFileContents),
  privateKeys: (await openpgp.key.readArmored(privateKeyArmored)).keys,
  passphrase: 'mySecretPassphrase',
});

// Save the decrypted file to disk
fs.writeFileSync('/path/to/decrypted_file.csv', decryptedFile.data);