@google-cloud/kms

What is @google-cloud/kms?

@google-cloud/kms is a Node.js client library for Google Cloud Key Management Service (KMS). It allows you to manage cryptographic keys for your cloud services the same way you do on-premises. You can create, use, rotate, and destroy cryptographic keys, and it supports both symmetric and asymmetric keys.

What are @google-cloud/kms's main functionalities?

Create a Key Ring

This code sample demonstrates how to create a new key ring in Google Cloud KMS. A key ring is a grouping of keys that allows you to manage them together.

const { KeyManagementServiceClient } = require('@google-cloud/kms');
const client = new KeyManagementServiceClient();

async function createKeyRing() {
  const locationId = 'global';
  const keyRingId = 'my-key-ring';
  const parent = client.locationPath('my-project', locationId);

  const [keyRing] = await client.createKeyRing({
    parent: parent,
    keyRingId: keyRingId,
    keyRing: {}
  });

  console.log(`Created key ring: ${keyRing.name}`);
}

createKeyRing();

Create a Crypto Key

This code sample demonstrates how to create a new cryptographic key within a key ring. The key can be used for encryption and decryption.

const { KeyManagementServiceClient } = require('@google-cloud/kms');
const client = new KeyManagementServiceClient();

async function createCryptoKey() {
  const locationId = 'global';
  const keyRingId = 'my-key-ring';
  const cryptoKeyId = 'my-crypto-key';
  const parent = client.keyRingPath('my-project', locationId, keyRingId);

  const [cryptoKey] = await client.createCryptoKey({
    parent: parent,
    cryptoKeyId: cryptoKeyId,
    cryptoKey: {
      purpose: 'ENCRYPT_DECRYPT',
      versionTemplate: {
        algorithm: 'GOOGLE_SYMMETRIC_ENCRYPTION'
      }
    }
  });

  console.log(`Created crypto key: ${cryptoKey.name}`);
}

createCryptoKey();

Encrypt Data

This code sample demonstrates how to encrypt data using a cryptographic key. The plaintext data is encrypted and the ciphertext is returned.

const { KeyManagementServiceClient } = require('@google-cloud/kms');
const client = new KeyManagementServiceClient();

async function encryptData() {
  const locationId = 'global';
  const keyRingId = 'my-key-ring';
  const cryptoKeyId = 'my-crypto-key';
  const name = client.cryptoKeyPath('my-project', locationId, keyRingId, cryptoKeyId);
  const plaintext = Buffer.from('my sensitive data').toString('base64');

  const [result] = await client.encrypt({
    name: name,
    plaintext: plaintext
  });

  console.log(`Encrypted data: ${result.ciphertext}`);
}

encryptData();

Decrypt Data

This code sample demonstrates how to decrypt data that was previously encrypted using a cryptographic key. The ciphertext is decrypted and the original plaintext is returned.

const { KeyManagementServiceClient } = require('@google-cloud/kms');
const client = new KeyManagementServiceClient();

async function decryptData() {
  const locationId = 'global';
  const keyRingId = 'my-key-ring';
  const cryptoKeyId = 'my-crypto-key';
  const name = client.cryptoKeyPath('my-project', locationId, keyRingId, cryptoKeyId);
  const ciphertext = '...'; // The encrypted data

  const [result] = await client.decrypt({
    name: name,
    ciphertext: ciphertext
  });

  console.log(`Decrypted data: ${Buffer.from(result.plaintext, 'base64').toString()}`);
}

decryptData();

Other packages similar to @google-cloud/kms

aws-sdk

The aws-sdk package for Node.js provides a comprehensive set of tools for interacting with AWS services, including AWS Key Management Service (KMS). It allows you to create, manage, and use cryptographic keys in a similar way to @google-cloud/kms, but within the AWS ecosystem.

azure-keyvault-keys

The azure-keyvault-keys package for Node.js provides functionality for managing cryptographic keys in Azure Key Vault. It offers similar capabilities to @google-cloud/kms, such as creating, using, and managing keys, but is designed for use with Microsoft Azure services.

node-jose

The node-jose package is a JavaScript library for JSON Object Signing and Encryption (JOSE). It provides tools for working with JSON Web Tokens (JWT), JSON Web Encryption (JWE), and JSON Web Keys (JWK). While it is not a cloud-specific service, it offers similar cryptographic functionalities for key management and data encryption/decryption.

README

Google Cloud Key Management Service: Node.js Client

Google Cloud Key Management Service (KMS) API client for Node.js

A comprehensive list of changes in each version may be found in the CHANGELOG.

• Google Cloud Key Management Service Node.js Client API Reference
• Google Cloud Key Management Service Documentation
• github.com/googleapis/google-cloud-node/packages/google-cloud-kms

Read more about the client libraries for Cloud APIs, including the older Google APIs Client Libraries, in Client Libraries Explained.

Table of contents:

• Quickstart
  • Before you begin
  • Installing the client library
  • Using the client library
• Samples
• Versioning
• Contributing
• License

Quickstart

Before you begin

1. Select or create a Cloud Platform project.
2. Enable billing for your project.
3. Enable the Google Cloud Key Management Service API.
4. Set up authentication with a service account so you can access the API from your local workstation.

Installing the client library

npm install @google-cloud/kms

Using the client library

//
// TODO(developer): Uncomment these variables before running the sample.
//
// const projectId = 'my-project';
// const locationId = 'us-east1';

// Imports the Cloud KMS library
const {KeyManagementServiceClient} = require('@google-cloud/kms');

// Instantiates a client
const client = new KeyManagementServiceClient();

// Build the location name
const locationName = client.locationPath(projectId, locationId);

async function listKeyRings() {
  const [keyRings] = await client.listKeyRings({
    parent: locationName,
  });

  for (const keyRing of keyRings) {
    console.log(keyRing.name);
  }

  return keyRings;
}

return listKeyRings();

Samples

Samples are in the samples/ directory. Each sample's README.md has instructions for running its sample.

Sample	Source Code	Try it
Ekm_service.create_ekm_connection	source code
Ekm_service.get_ekm_config	source code
Ekm_service.get_ekm_connection	source code
Ekm_service.list_ekm_connections	source code
Ekm_service.update_ekm_config	source code
Ekm_service.update_ekm_connection	source code
Ekm_service.verify_connectivity	source code
Key_management_service.asymmetric_decrypt	source code
Key_management_service.asymmetric_sign	source code
Key_management_service.create_crypto_key	source code
Key_management_service.create_crypto_key_version	source code
Key_management_service.create_import_job	source code
Key_management_service.create_key_ring	source code
Key_management_service.decrypt	source code
Key_management_service.destroy_crypto_key_version	source code
Key_management_service.encrypt	source code
Key_management_service.generate_random_bytes	source code
Key_management_service.get_crypto_key	source code
Key_management_service.get_crypto_key_version	source code
Key_management_service.get_import_job	source code
Key_management_service.get_key_ring	source code
Key_management_service.get_public_key	source code
Key_management_service.import_crypto_key_version	source code
Key_management_service.list_crypto_key_versions	source code
Key_management_service.list_crypto_keys	source code
Key_management_service.list_import_jobs	source code
Key_management_service.list_key_rings	source code
Key_management_service.mac_sign	source code
Key_management_service.mac_verify	source code
Key_management_service.raw_decrypt	source code
Key_management_service.raw_encrypt	source code
Key_management_service.restore_crypto_key_version	source code
Key_management_service.update_crypto_key	source code
Key_management_service.update_crypto_key_primary_version	source code
Key_management_service.update_crypto_key_version	source code
Quickstart	source code

The Google Cloud Key Management Service Node.js Client API Reference documentation also contains samples.

Supported Node.js Versions

Our client libraries follow the Node.js release schedule. Libraries are compatible with all current active and maintenance versions of Node.js. If you are using an end-of-life version of Node.js, we recommend that you update as soon as possible to an actively supported LTS version.

Google's client libraries support legacy versions of Node.js runtimes on a best-efforts basis with the following warnings:

• Legacy versions are not tested in continuous integration.
• Some security patches and features cannot be backported.
• Dependencies cannot be kept up-to-date.

Client libraries targeting some end-of-life versions of Node.js are available, and can be installed through npm dist-tags. The dist-tags follow the naming convention legacy-(version). For example, npm install @google-cloud/kms@legacy-8 installs client libraries for versions compatible with Node.js 8.

Versioning

This library follows Semantic Versioning.

This library is considered to be stable. The code surface will not change in backwards-incompatible ways unless absolutely necessary (e.g. because of critical security issues) or with an extensive deprecation period. Issues and requests against stable libraries are addressed with the highest priority.

More Information: Google Cloud Platform Launch Stages

Contributing

Contributions welcome! See the Contributing Guide.

Please note that this README.md, the samples/README.md, and a variety of configuration files in this repository (including .nycrc and tsconfig.json) are generated from a central template. To edit one of these files, make an edit to its templates in directory.

License

Apache Version 2.0

See LICENSE