node-gpg

const gpg = require('node-gpg'); const path = require('path'); const fs = require('fs'); // Ensure a 'test' key exists in your GPG keyring, e.g., by creating one: // gpg --full-generate-key // Use 'test' as the User ID async function encryptAndDecryptMessage() { try { const plaintext = 'This is a secret message!'; const recipientKeyId = 'test'; // Replace with a key ID from your keyring const outputEncryptedPath = path.resolve(__dirname, './encrypted_message.gpg'); const outputDecryptedPath = path.resolve(__dirname, './decrypted_message.txt'); console.log(`Encrypting: "${plaintext}" for key ID: "${recipientKeyId}"`); const encryptedData = await gpg.encrypt(recipientKeyId, plaintext); fs.writeFileSync(outputEncryptedPath, encryptedData); console.log('Encrypted data written to:', outputEncryptedPath); console.log('Decrypting the message...'); const decryptedData = await gpg.decrypt(encryptedData); fs.writeFileSync(outputDecryptedPath, decryptedData); console.log('Decrypted data written to:', outputDecryptedPath); console.log('Decrypted content:', decryptedData); console.log('\nEncryption and decryption successful!'); } catch (error) { console.error('An error occurred:', error.message); if (error.stderr) console.error('GPG stderr:', error.stderr); console.error('Ensure GnuPG is installed and configured, and the recipient key exists.'); } } encryptAndDecryptMessage();