Cloud HSM

Topik ini memberikan ringkasan tentang Cloud HSM dan menunjukkan cara membuat serta menggunakan kunci enkripsi yang dilindungi HSM di Cloud Key Management Service.

Apa itu Cloud HSM?

Cloud HSM adalah layanan Hardware Security Module (HSM) yang dihosting di cloud. Dengan layanan ini, Anda dapat menghosting kunci enkripsi dan melakukan operasi kriptografi di cluster HSM tersertifikasi FIPS 140-2 Level 3. Google mengelola cluster HSM untuk Anda, sehingga Anda tidak perlu mengkhawatirkan pengelompokan, penskalaan, atau patching. Karena Cloud HSM menggunakan Cloud KMS sebagai front end-nya, Anda dapat memanfaatkan semua kemudahan dan fitur yang disediakan Cloud KMS.

Catatan: Saat Anda menggunakan kunci dan versi kunci yang didukung HSM untuk operasi kriptografi, project Google Cloud yang membuat permintaan kriptografis akan dikenai penggunaan kuota operasi kriptografi, dan project Google Cloud yang berisi kunci HSM akan menimbulkan penggunaan kuota HSM QPM. Untuk mengetahui informasi lebih lanjut tentang Cloud KMS, lihat Kuota.

Membuat key ring

Saat membuat kunci, Anda menambahkannya ke key ring di lokasi Google Cloud tertentu. Anda dapat membuat key ring baru atau menggunakan yang sudah ada. Dalam topik ini, Anda membuat {i>key ring<i} baru dan menambahkan kunci baru ke dalamnya.

Buat key ring di lokasi Google Cloud yang mendukung Cloud HSM.

Catatan: Key ring dengan nama yang sama dapat ada di lokasi yang berbeda, sehingga Anda harus selalu menentukan lokasinya.

Konsol

1. Buka halaman Key Management di konsol Google Cloud.

   Buka Key Management

2. Klik Create key ring.

3. Untuk Nama key ring, masukkan nama key ring Anda.

4. Untuk Lokasi key ring, pilih lokasi seperti "us-east1".

   Catatan: Pilih lokasi yang dekat dengan resource yang ingin Anda lindungi. Untuk penggunaan CMEK, key ring Anda harus berada di lokasi yang sama dengan resource yang digunakan. Untuk kunci Cloud EKM, lokasi secara fisik harus dekat dengan vendor pengelola kunci eksternal (EKM).

5. Klik Create.

gcloud

1. Di konsol Google Cloud, aktifkan Cloud Shell.

   Aktifkan Cloud Shell

2. Di lingkungan Anda, jalankan perintah gcloud kms keyrings create:

   gcloud kms keyrings create KEY_RING \
       --location LOCATION
   

   Ganti kode berikut:

   • KEY_RING: nama key ring yang berisi kunci.
   • LOCATION: lokasi Cloud KMS key ring.

   Untuk mengetahui informasi tentang semua tanda dan nilai yang memungkinkan, jalankan perintah dengan tanda --help.

C#

Untuk menjalankan kode ini, siapkan lingkungan pengembangan C# terlebih dahulu lalu instal Cloud KMS C# SDK.

using Google.Api.Gax.ResourceNames;
using Google.Cloud.Kms.V1;

public class CreateKeyRingSample
{
    public KeyRing CreateKeyRing(
      string projectId = "my-project", string locationId = "us-east1",
      string id = "my-key-ring")
    {
        // Create the client.
        KeyManagementServiceClient client = KeyManagementServiceClient.Create();

        // Build the parent location name.
        LocationName locationName = new LocationName(projectId, locationId);

        // Build the key ring.
        KeyRing keyRing = new KeyRing { };

        // Call the API.
        KeyRing result = client.CreateKeyRing(locationName, id, keyRing);

        // Return the result.
        return result;
    }
}

Go

Untuk menjalankan kode ini, siapkan lingkungan pengembangan Go terlebih dahulu lalu instal Cloud KMS Go SDK.

import (
	"context"
	"fmt"
	"io"

	kms "cloud.google.com/go/kms/apiv1"
	"cloud.google.com/go/kms/apiv1/kmspb"
)

// createKeyRing creates a new ring to store keys on KMS.
func createKeyRing(w io.Writer, parent, id string) error {
	// parent := "projects/PROJECT_ID/locations/global"
	// id := "my-key-ring"

	// Create the client.
	ctx := context.Background()
	client, err := kms.NewKeyManagementClient(ctx)
	if err != nil {
		return fmt.Errorf("failed to create kms client: %w", err)
	}
	defer client.Close()

	// Build the request.
	req := &kmspb.CreateKeyRingRequest{
		Parent:    parent,
		KeyRingId: id,
	}

	// Call the API.
	result, err := client.CreateKeyRing(ctx, req)
	if err != nil {
		return fmt.Errorf("failed to create key ring: %w", err)
	}
	fmt.Fprintf(w, "Created key ring: %s\n", result.Name)
	return nil
}

Java

Untuk menjalankan kode ini, siapkan lingkungan pengembangan Java terlebih dahulu dan instal Java SDK Cloud KMS.

import com.google.cloud.kms.v1.KeyManagementServiceClient;
import com.google.cloud.kms.v1.KeyRing;
import com.google.cloud.kms.v1.LocationName;
import java.io.IOException;

public class CreateKeyRing {

  public void createKeyRing() throws IOException {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "your-project-id";
    String locationId = "us-east1";
    String id = "my-asymmetric-signing-key";
    createKeyRing(projectId, locationId, id);
  }

  // Create a new key ring.
  public void createKeyRing(String projectId, String locationId, String id) throws IOException {
    // Initialize client that will be used to send requests. This client only
    // needs to be created once, and can be reused for multiple requests. After
    // completing all of your requests, call the "close" method on the client to
    // safely clean up any remaining background resources.
    try (KeyManagementServiceClient client = KeyManagementServiceClient.create()) {
      // Build the parent name from the project and location.
      LocationName locationName = LocationName.of(projectId, locationId);

      // Build the key ring to create.
      KeyRing keyRing = KeyRing.newBuilder().build();

      // Create the key ring.
      KeyRing createdKeyRing = client.createKeyRing(locationName, id, keyRing);
      System.out.printf("Created key ring %s%n", createdKeyRing.getName());
    }
  }
}

Node.js

Untuk menjalankan kode ini, siapkan lingkungan pengembangan Node.js terlebih dahulu, lalu instal Node.js SDK Cloud KMS.

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

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

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

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

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

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

return createKeyRing();

PHP

Untuk menjalankan kode ini, pelajari cara menggunakan PHP di Google Cloud terlebih dahulu dan instal PHP SDK Cloud KMS.

use Google\Cloud\Kms\V1\Client\KeyManagementServiceClient;
use Google\Cloud\Kms\V1\CreateKeyRingRequest;
use Google\Cloud\Kms\V1\KeyRing;

function create_key_ring(
    string $projectId = 'my-project',
    string $locationId = 'us-east1',
    string $id = 'my-key-ring'
): KeyRing {
    // Create the Cloud KMS client.
    $client = new KeyManagementServiceClient();

    // Build the parent location name.
    $locationName = $client->locationName($projectId, $locationId);

    // Build the key ring.
    $keyRing = new KeyRing();

    // Call the API.
    $createKeyRingRequest = (new CreateKeyRingRequest())
        ->setParent($locationName)
        ->setKeyRingId($id)
        ->setKeyRing($keyRing);
    $createdKeyRing = $client->createKeyRing($createKeyRingRequest);
    printf('Created key ring: %s' . PHP_EOL, $createdKeyRing->getName());

    return $createdKeyRing;
}

Python

Untuk menjalankan kode ini, siapkan lingkungan pengembangan Python terlebih dahulu lalu instal Cloud KMS Python SDK.

from google.cloud import kms

def create_key_ring(
    project_id: str, location_id: str, key_ring_id: str
) -> kms.CryptoKey:
    """
    Creates a new key ring in Cloud KMS

    Args:
        project_id (string): Google Cloud project ID (e.g. 'my-project').
        location_id (string): Cloud KMS location (e.g. 'us-east1').
        key_ring_id (string): ID of the key ring to create (e.g. 'my-key-ring').

    Returns:
        KeyRing: Cloud KMS key ring.

    """

    # Create the client.
    client = kms.KeyManagementServiceClient()

    # Build the parent location name.
    location_name = f"projects/{project_id}/locations/{location_id}"

    # Build the key ring.
    key_ring = {}

    # Call the API.
    created_key_ring = client.create_key_ring(
        request={
            "parent": location_name,
            "key_ring_id": key_ring_id,
            "key_ring": key_ring,
        }
    )
    print(f"Created key ring: {created_key_ring.name}")
    return created_key_ring

Ruby

Untuk menjalankan kode ini, siapkan lingkungan pengembangan Ruby terlebih dahulu dan instal Ruby SDK Cloud KMS.

# TODO(developer): uncomment these values before running the sample.
# project_id  = "my-project"
# location_id = "us-east1"
# id = "my-key-ring"

# Require the library.
require "google/cloud/kms"

# Create the client.
client = Google::Cloud::Kms.key_management_service

# Build the parent location name.
location_name = client.location_path project: project_id, location: location_id

# Build the key ring.
key_ring = {}

# Call the API.
created_key_ring = client.create_key_ring parent: location_name, key_ring_id: id, key_ring: key_ring
puts "Created key ring: #{created_key_ring.name}"

API

Contoh ini menggunakan curl sebagai klien HTTP untuk menunjukkan penggunaan API. Untuk informasi selengkapnya tentang kontrol akses, lihat Mengakses Cloud KMS API.

curl "https://cloudkms.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/keyRings?key_ring_id=KEY_RING" \
    --request "POST" \
    --header "authorization: Bearer TOKEN"

Ganti kode berikut:

• PROJECT_ID: ID project yang berisi key ring.
• KEY_RING: nama key ring yang berisi kunci.
• LOCATION: lokasi Cloud KMS key ring.

Lihat dokumentasi API KeyRing.create untuk informasi selengkapnya.

Buat kunci

Ikuti langkah-langkah berikut untuk membuat kunci Cloud HSM pada key ring dan lokasi yang ditentukan.

Konsol

1. Buka halaman Key Management di konsol Google Cloud.

   Buka halaman Key Management

2. Klik nama key ring yang akan Anda buat kunci.

3. Klik Create key.

4. Di bagian What type of key do you want to create?, pilih Generated key.

5. Di kolom Key name, masukkan nama untuk kunci Anda.

6. Klik dropdown Tingkat perlindungan, lalu pilih HSM.

7. Klik dropdown Destination, lalu pilih Symmetric encryption/decrypt.

8. Setujui nilai default untuk Rotation period dan Getting on.

9. Klik Create.

gcloud

Untuk menggunakan Cloud KMS di command line, Instal atau upgrade Google Cloud CLI ke versi terbaru terlebih dahulu.

gcloud kms keys create key \
    --keyring key-ring \
    --location location \
    --purpose "encryption" \
    --protection-level "hsm"

Ganti key dengan nama untuk kunci baru. Ganti key-ring dengan nama key ring yang sudah ada, tempat kunci tersebut akan berada. Ganti location dengan lokasi Cloud KMS untuk key ring.

Untuk mengetahui informasi tentang semua tanda dan nilai yang memungkinkan, jalankan perintah dengan tanda --help.

C#

Untuk menjalankan kode ini, siapkan lingkungan pengembangan C# terlebih dahulu lalu instal Cloud KMS C# SDK.

using Google.Cloud.Kms.V1;
using Google.Protobuf.WellKnownTypes;

public class CreateKeyHsmSample
{
    public CryptoKey CreateKeyHsm(
      string projectId = "my-project", string locationId = "us-east1", string keyRingId = "my-key-ring",
      string id = "my-hsm-encryption-key")
    {
        // Create the client.
        KeyManagementServiceClient client = KeyManagementServiceClient.Create();

        // Build the parent key ring name.
        KeyRingName keyRingName = new KeyRingName(projectId, locationId, keyRingId);

        // Build the key.
        CryptoKey key = new CryptoKey
        {
            Purpose = CryptoKey.Types.CryptoKeyPurpose.EncryptDecrypt,
            VersionTemplate = new CryptoKeyVersionTemplate
            {
                ProtectionLevel = ProtectionLevel.Hsm,
                Algorithm = CryptoKeyVersion.Types.CryptoKeyVersionAlgorithm.GoogleSymmetricEncryption,
            },

            // Optional: customize how long key versions should be kept before destroying.
            DestroyScheduledDuration = new Duration
            {
                Seconds = 24 * 60 * 60,
            }
        };

        // Call the API.
        CryptoKey result = client.CreateCryptoKey(keyRingName, id, key);

        // Return the result.
        return result;
    }
}

Go

Untuk menjalankan kode ini, siapkan lingkungan pengembangan Go terlebih dahulu lalu instal Cloud KMS Go SDK.

import (
	"context"
	"fmt"
	"io"
	"time"

	kms "cloud.google.com/go/kms/apiv1"
	"cloud.google.com/go/kms/apiv1/kmspb"
	"google.golang.org/protobuf/types/known/durationpb"
)

// createKeyHSM creates a new symmetric encrypt/decrypt key on Cloud KMS.
func createKeyHSM(w io.Writer, parent, id string) error {
	// parent := "projects/my-project/locations/us-east1/keyRings/my-key-ring"
	// id := "my-hsm-encryption-key"

	// Create the client.
	ctx := context.Background()
	client, err := kms.NewKeyManagementClient(ctx)
	if err != nil {
		return fmt.Errorf("failed to create kms client: %w", err)
	}
	defer client.Close()

	// Build the request.
	req := &kmspb.CreateCryptoKeyRequest{
		Parent:      parent,
		CryptoKeyId: id,
		CryptoKey: &kmspb.CryptoKey{
			Purpose: kmspb.CryptoKey_ENCRYPT_DECRYPT,
			VersionTemplate: &kmspb.CryptoKeyVersionTemplate{
				ProtectionLevel: kmspb.ProtectionLevel_HSM,
				Algorithm:       kmspb.CryptoKeyVersion_GOOGLE_SYMMETRIC_ENCRYPTION,
			},

			// Optional: customize how long key versions should be kept before destroying.
			DestroyScheduledDuration: durationpb.New(24 * time.Hour),
		},
	}

	// Call the API.
	result, err := client.CreateCryptoKey(ctx, req)
	if err != nil {
		return fmt.Errorf("failed to create key: %w", err)
	}
	fmt.Fprintf(w, "Created key: %s\n", result.Name)
	return nil
}

Java

Untuk menjalankan kode ini, siapkan lingkungan pengembangan Java terlebih dahulu dan instal Java SDK Cloud KMS.

import com.google.cloud.kms.v1.CryptoKey;
import com.google.cloud.kms.v1.CryptoKey.CryptoKeyPurpose;
import com.google.cloud.kms.v1.CryptoKeyVersion.CryptoKeyVersionAlgorithm;
import com.google.cloud.kms.v1.CryptoKeyVersionTemplate;
import com.google.cloud.kms.v1.KeyManagementServiceClient;
import com.google.cloud.kms.v1.KeyRingName;
import com.google.cloud.kms.v1.ProtectionLevel;
import com.google.protobuf.Duration;
import java.io.IOException;

public class CreateKeyHsm {

  public void createKeyHsm() throws IOException {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "your-project-id";
    String locationId = "us-east1";
    String keyRingId = "my-key-ring";
    String id = "my-hsm-key";
    createKeyHsm(projectId, locationId, keyRingId, id);
  }

  // Create a new key that is stored in an HSM.
  public void createKeyHsm(String projectId, String locationId, String keyRingId, String id)
      throws IOException {
    // Initialize client that will be used to send requests. This client only
    // needs to be created once, and can be reused for multiple requests. After
    // completing all of your requests, call the "close" method on the client to
    // safely clean up any remaining background resources.
    try (KeyManagementServiceClient client = KeyManagementServiceClient.create()) {
      // Build the parent name from the project, location, and key ring.
      KeyRingName keyRingName = KeyRingName.of(projectId, locationId, keyRingId);

      // Build the hsm key to create.
      CryptoKey key =
          CryptoKey.newBuilder()
              .setPurpose(CryptoKeyPurpose.ENCRYPT_DECRYPT)
              .setVersionTemplate(
                  CryptoKeyVersionTemplate.newBuilder()
                      .setProtectionLevel(ProtectionLevel.HSM)
                      .setAlgorithm(CryptoKeyVersionAlgorithm.GOOGLE_SYMMETRIC_ENCRYPTION))

              // Optional: customize how long key versions should be kept before destroying.
              .setDestroyScheduledDuration(Duration.newBuilder().setSeconds(24 * 60 * 60))
              .build();

      // Create the key.
      CryptoKey createdKey = client.createCryptoKey(keyRingName, id, key);
      System.out.printf("Created hsm key %s%n", createdKey.getName());
    }
  }
}

Node.js

Untuk menjalankan kode ini, siapkan lingkungan pengembangan Node.js terlebih dahulu, lalu instal Node.js SDK Cloud KMS.

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

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

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

// Build the parent key ring name
const keyRingName = client.keyRingPath(projectId, locationId, keyRingId);

async function createKeyHsm() {
  const [key] = await client.createCryptoKey({
    parent: keyRingName,
    cryptoKeyId: id,
    cryptoKey: {
      purpose: 'ENCRYPT_DECRYPT',
      versionTemplate: {
        algorithm: 'GOOGLE_SYMMETRIC_ENCRYPTION',
        protectionLevel: 'HSM',
      },

      // Optional: customize how long key versions should be kept before
      // destroying.
      destroyScheduledDuration: {seconds: 60 * 60 * 24},
    },
  });

  console.log(`Created hsm key: ${key.name}`);
  return key;
}

return createKeyHsm();

PHP

Untuk menjalankan kode ini, pelajari cara menggunakan PHP di Google Cloud terlebih dahulu dan instal PHP SDK Cloud KMS.

use Google\Cloud\Kms\V1\Client\KeyManagementServiceClient;
use Google\Cloud\Kms\V1\CreateCryptoKeyRequest;
use Google\Cloud\Kms\V1\CryptoKey;
use Google\Cloud\Kms\V1\CryptoKey\CryptoKeyPurpose;
use Google\Cloud\Kms\V1\CryptoKeyVersion\CryptoKeyVersionAlgorithm;
use Google\Cloud\Kms\V1\CryptoKeyVersionTemplate;
use Google\Cloud\Kms\V1\ProtectionLevel;
use Google\Protobuf\Duration;

function create_key_hsm(
    string $projectId = 'my-project',
    string $locationId = 'us-east1',
    string $keyRingId = 'my-key-ring',
    string $id = 'my-hsm-key'
): CryptoKey {
    // Create the Cloud KMS client.
    $client = new KeyManagementServiceClient();

    // Build the parent key ring name.
    $keyRingName = $client->keyRingName($projectId, $locationId, $keyRingId);

    // Build the key.
    $key = (new CryptoKey())
        ->setPurpose(CryptoKeyPurpose::ENCRYPT_DECRYPT)
        ->setVersionTemplate((new CryptoKeyVersionTemplate())
            ->setAlgorithm(CryptoKeyVersionAlgorithm::GOOGLE_SYMMETRIC_ENCRYPTION)
            ->setProtectionLevel(ProtectionLevel::HSM)
        )

        // Optional: customize how long key versions should be kept before destroying.
        ->setDestroyScheduledDuration((new Duration())
            ->setSeconds(24 * 60 * 60)
        );

    // Call the API.
    $createCryptoKeyRequest = (new CreateCryptoKeyRequest())
        ->setParent($keyRingName)
        ->setCryptoKeyId($id)
        ->setCryptoKey($key);
    $createdKey = $client->createCryptoKey($createCryptoKeyRequest);
    printf('Created hsm key: %s' . PHP_EOL, $createdKey->getName());

    return $createdKey;
}

Python

Untuk menjalankan kode ini, siapkan lingkungan pengembangan Python terlebih dahulu lalu instal Cloud KMS Python SDK.

import datetime

from google.cloud import kms
from google.protobuf import duration_pb2  # type: ignore

def create_key_hsm(
    project_id: str, location_id: str, key_ring_id: str, key_id: str
) -> kms.CryptoKey:
    """
    Creates a new key in Cloud KMS backed by Cloud HSM.

    Args:
        project_id (string): Google Cloud project ID (e.g. 'my-project').
        location_id (string): Cloud KMS location (e.g. 'us-east1').
        key_ring_id (string): ID of the Cloud KMS key ring (e.g. 'my-key-ring').
        key_id (string): ID of the key to create (e.g. 'my-hsm-key').

    Returns:
        CryptoKey: Cloud KMS key.

    """

    # Create the client.
    client = kms.KeyManagementServiceClient()

    # Build the parent key ring name.
    key_ring_name = client.key_ring_path(project_id, location_id, key_ring_id)

    # Build the key.
    purpose = kms.CryptoKey.CryptoKeyPurpose.ENCRYPT_DECRYPT
    algorithm = (
        kms.CryptoKeyVersion.CryptoKeyVersionAlgorithm.GOOGLE_SYMMETRIC_ENCRYPTION
    )
    protection_level = kms.ProtectionLevel.HSM
    key = {
        "purpose": purpose,
        "version_template": {
            "algorithm": algorithm,
            "protection_level": protection_level,
        },
        # Optional: customize how long key versions should be kept before
        # destroying.
        "destroy_scheduled_duration": duration_pb2.Duration().FromTimedelta(
            datetime.timedelta(days=1)
        ),
    }

    # Call the API.
    created_key = client.create_crypto_key(
        request={"parent": key_ring_name, "crypto_key_id": key_id, "crypto_key": key}
    )
    print(f"Created hsm key: {created_key.name}")
    return created_key

Ruby

Untuk menjalankan kode ini, siapkan lingkungan pengembangan Ruby terlebih dahulu dan instal Ruby SDK Cloud KMS.

# TODO(developer): uncomment these values before running the sample.
# project_id  = "my-project"
# location_id = "us-east1"
# key_ring_id = "my-key-ring"
# id          = "my-hsm-key"

# Require the library.
require "google/cloud/kms"

# Create the client.
client = Google::Cloud::Kms.key_management_service

# Build the parent key ring name.
key_ring_name = client.key_ring_path project: project_id, location: location_id, key_ring: key_ring_id

# Build the key.
key = {
  purpose:          :ENCRYPT_DECRYPT,
  version_template: {
    algorithm:        :GOOGLE_SYMMETRIC_ENCRYPTION,
    protection_level: :HSM
  },

  # Optional: customize how long key versions should be kept before destroying.
  destroy_scheduled_duration: {
    seconds: 24 * 60 * 60
  }
}

# Call the API.
created_key = client.create_crypto_key parent: key_ring_name, crypto_key_id: id, crypto_key: key
puts "Created hsm key: #{created_key.name}"

Mengenkripsi data

Setelah memiliki kunci, Anda dapat menggunakan kunci tersebut untuk mengenkripsi konten biner atau teks.

gcloud

Untuk menggunakan Cloud KMS di command line, Instal atau upgrade Google Cloud CLI ke versi terbaru terlebih dahulu.

gcloud kms encrypt \
    --key key \
    --keyring key-ring \
    --location location  \
    --plaintext-file file-with-data-to-encrypt \
    --ciphertext-file file-to-store-encrypted-data

Ganti key dengan nama kunci yang akan digunakan untuk enkripsi. Ganti key-ring dengan nama key ring tempat kunci tersebut berada. Ganti location dengan lokasi Cloud KMS untuk key ring. Ganti file-with-data-to-encrypt dan file-to-store-encrypted-data dengan jalur file lokal untuk membaca data teks biasa dan menyimpan output yang dienkripsi.

Untuk mengetahui informasi tentang semua tanda dan nilai yang memungkinkan, jalankan perintah dengan tanda --help.

C#

Untuk menjalankan kode ini, siapkan lingkungan pengembangan C# terlebih dahulu lalu instal Cloud KMS C# SDK.

using Google.Cloud.Kms.V1;
using Google.Protobuf;
using System.Text;

public class EncryptSymmetricSample
{
    public byte[] EncryptSymmetric(
      string projectId = "my-project", string locationId = "us-east1", string keyRingId = "my-key-ring", string keyId = "my-key",
      string message = "Sample message")
    {
        // Create the client.
        KeyManagementServiceClient client = KeyManagementServiceClient.Create();

        // Build the key name.
        CryptoKeyName keyName = new CryptoKeyName(projectId, locationId, keyRingId, keyId);

        // Convert the message into bytes. Cryptographic plaintexts and
        // ciphertexts are always byte arrays.
        byte[] plaintext = Encoding.UTF8.GetBytes(message);

        // Call the API.
        EncryptResponse result = client.Encrypt(keyName, ByteString.CopyFrom(plaintext));

        // Return the ciphertext.
        return result.Ciphertext.ToByteArray();
    }
}

Go

Untuk menjalankan kode ini, siapkan lingkungan pengembangan Go terlebih dahulu lalu instal Cloud KMS Go SDK.

import (
	"context"
	"fmt"
	"hash/crc32"
	"io"

	kms "cloud.google.com/go/kms/apiv1"
	"cloud.google.com/go/kms/apiv1/kmspb"
	"google.golang.org/protobuf/types/known/wrapperspb"
)

// encryptSymmetric encrypts the input plaintext with the specified symmetric
// Cloud KMS key.
func encryptSymmetric(w io.Writer, name string, message string) error {
	// name := "projects/my-project/locations/us-east1/keyRings/my-key-ring/cryptoKeys/my-key"
	// message := "Sample message"

	// Create the client.
	ctx := context.Background()
	client, err := kms.NewKeyManagementClient(ctx)
	if err != nil {
		return fmt.Errorf("failed to create kms client: %w", err)
	}
	defer client.Close()

	// Convert the message into bytes. Cryptographic plaintexts and
	// ciphertexts are always byte arrays.
	plaintext := []byte(message)

	// Optional but recommended: Compute plaintext's CRC32C.
	crc32c := func(data []byte) uint32 {
		t := crc32.MakeTable(crc32.Castagnoli)
		return crc32.Checksum(data, t)
	}
	plaintextCRC32C := crc32c(plaintext)

	// Build the request.
	req := &kmspb.EncryptRequest{
		Name:            name,
		Plaintext:       plaintext,
		PlaintextCrc32C: wrapperspb.Int64(int64(plaintextCRC32C)),
	}

	// Call the API.
	result, err := client.Encrypt(ctx, req)
	if err != nil {
		return fmt.Errorf("failed to encrypt: %w", err)
	}

	// Optional, but recommended: perform integrity verification on result.
	// For more details on ensuring E2E in-transit integrity to and from Cloud KMS visit:
	// https://cloud.google.com/kms/docs/data-integrity-guidelines
	if result.VerifiedPlaintextCrc32C == false {
		return fmt.Errorf("Encrypt: request corrupted in-transit")
	}
	if int64(crc32c(result.Ciphertext)) != result.CiphertextCrc32C.Value {
		return fmt.Errorf("Encrypt: response corrupted in-transit")
	}

	fmt.Fprintf(w, "Encrypted ciphertext: %s", result.Ciphertext)
	return nil
}

Java

Untuk menjalankan kode ini, siapkan lingkungan pengembangan Java terlebih dahulu dan instal Java SDK Cloud KMS.

import com.google.cloud.kms.v1.CryptoKeyName;
import com.google.cloud.kms.v1.EncryptResponse;
import com.google.cloud.kms.v1.KeyManagementServiceClient;
import com.google.protobuf.ByteString;
import java.io.IOException;

public class EncryptSymmetric {

  public void encryptSymmetric() throws IOException {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "your-project-id";
    String locationId = "us-east1";
    String keyRingId = "my-key-ring";
    String keyId = "my-key";
    String plaintext = "Plaintext to encrypt";
    encryptSymmetric(projectId, locationId, keyRingId, keyId, plaintext);
  }

  // Encrypt data with a given key.
  public void encryptSymmetric(
      String projectId, String locationId, String keyRingId, String keyId, String plaintext)
      throws IOException {
    // Initialize client that will be used to send requests. This client only
    // needs to be created once, and can be reused for multiple requests. After
    // completing all of your requests, call the "close" method on the client to
    // safely clean up any remaining background resources.
    try (KeyManagementServiceClient client = KeyManagementServiceClient.create()) {
      // Build the key version name from the project, location, key ring, key,
      // and key version.
      CryptoKeyName keyVersionName = CryptoKeyName.of(projectId, locationId, keyRingId, keyId);

      // Encrypt the plaintext.
      EncryptResponse response = client.encrypt(keyVersionName, ByteString.copyFromUtf8(plaintext));
      System.out.printf("Ciphertext: %s%n", response.getCiphertext().toStringUtf8());
    }
  }
}

Node.js

Untuk menjalankan kode ini, siapkan lingkungan pengembangan Node.js terlebih dahulu, lalu instal Node.js SDK Cloud KMS.

//
// TODO(developer): Uncomment these variables before running the sample.
//
// const projectId = 'my-project';
// const locationId = 'us-east1';
// const keyRingId = 'my-key-ring';
// const keyId = 'my-key';
// const plaintextBuffer = Buffer.from('...');

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

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

// Build the key name
const keyName = client.cryptoKeyPath(projectId, locationId, keyRingId, keyId);

// Optional, but recommended: compute plaintext's CRC32C.
const crc32c = require('fast-crc32c');
const plaintextCrc32c = crc32c.calculate(plaintextBuffer);

async function encryptSymmetric() {
  const [encryptResponse] = await client.encrypt({
    name: keyName,
    plaintext: plaintextBuffer,
    plaintextCrc32c: {
      value: plaintextCrc32c,
    },
  });

  const ciphertext = encryptResponse.ciphertext;

  // Optional, but recommended: perform integrity verification on encryptResponse.
  // For more details on ensuring E2E in-transit integrity to and from Cloud KMS visit:
  // https://cloud.google.com/kms/docs/data-integrity-guidelines
  if (!encryptResponse.verifiedPlaintextCrc32c) {
    throw new Error('Encrypt: request corrupted in-transit');
  }
  if (
    crc32c.calculate(ciphertext) !==
    Number(encryptResponse.ciphertextCrc32c.value)
  ) {
    throw new Error('Encrypt: response corrupted in-transit');
  }

  console.log(`Ciphertext: ${ciphertext.toString('base64')}`);
  return ciphertext;
}

return encryptSymmetric();

PHP

Untuk menjalankan kode ini, pelajari cara menggunakan PHP di Google Cloud terlebih dahulu dan instal PHP SDK Cloud KMS.

use Google\Cloud\Kms\V1\Client\KeyManagementServiceClient;
use Google\Cloud\Kms\V1\EncryptRequest;

function encrypt_symmetric(
    string $projectId = 'my-project',
    string $locationId = 'us-east1',
    string $keyRingId = 'my-key-ring',
    string $keyId = 'my-key',
    string $plaintext = '...'
) {
    // Create the Cloud KMS client.
    $client = new KeyManagementServiceClient();

    // Build the key name.
    $keyName = $client->cryptoKeyName($projectId, $locationId, $keyRingId, $keyId);

    // Call the API.
    $encryptRequest = (new EncryptRequest())
        ->setName($keyName)
        ->setPlaintext($plaintext);
    $encryptResponse = $client->encrypt($encryptRequest);
    printf('Ciphertext: %s' . PHP_EOL, $encryptResponse->getCiphertext());

    return $encryptResponse;
}

Python

Untuk menjalankan kode ini, siapkan lingkungan pengembangan Python terlebih dahulu lalu instal Cloud KMS Python SDK.

# Import base64 for printing the ciphertext.
import base64

# Import the client library.
from google.cloud import kms

def encrypt_symmetric(
    project_id: str, location_id: str, key_ring_id: str, key_id: str, plaintext: str
) -> bytes:
    """
    Encrypt plaintext using a symmetric key.

    Args:
        project_id (string): Google Cloud project ID (e.g. 'my-project').
        location_id (string): Cloud KMS location (e.g. 'us-east1').
        key_ring_id (string): ID of the Cloud KMS key ring (e.g. 'my-key-ring').
        key_id (string): ID of the key to use (e.g. 'my-key').
        plaintext (string): message to encrypt

    Returns:
        bytes: Encrypted ciphertext.

    """

    # Convert the plaintext to bytes.
    plaintext_bytes = plaintext.encode("utf-8")

    # Optional, but recommended: compute plaintext's CRC32C.
    # See crc32c() function defined below.
    plaintext_crc32c = crc32c(plaintext_bytes)

    # Create the client.
    client = kms.KeyManagementServiceClient()

    # Build the key name.
    key_name = client.crypto_key_path(project_id, location_id, key_ring_id, key_id)

    # Call the API.
    encrypt_response = client.encrypt(
        request={
            "name": key_name,
            "plaintext": plaintext_bytes,
            "plaintext_crc32c": plaintext_crc32c,
        }
    )

    # Optional, but recommended: perform integrity verification on encrypt_response.
    # For more details on ensuring E2E in-transit integrity to and from Cloud KMS visit:
    # https://cloud.google.com/kms/docs/data-integrity-guidelines
    if not encrypt_response.verified_plaintext_crc32c:
        raise Exception("The request sent to the server was corrupted in-transit.")
    if not encrypt_response.ciphertext_crc32c == crc32c(encrypt_response.ciphertext):
        raise Exception(
            "The response received from the server was corrupted in-transit."
        )
    # End integrity verification

    print(f"Ciphertext: {base64.b64encode(encrypt_response.ciphertext)}")
    return encrypt_response

def crc32c(data: bytes) -> int:
    """
    Calculates the CRC32C checksum of the provided data.

    Args:
        data: the bytes over which the checksum should be calculated.

    Returns:
        An int representing the CRC32C checksum of the provided bytes.
    """
    import crcmod  # type: ignore

    crc32c_fun = crcmod.predefined.mkPredefinedCrcFun("crc-32c")
    return crc32c_fun(data)

Ruby

Untuk menjalankan kode ini, siapkan lingkungan pengembangan Ruby terlebih dahulu dan instal Ruby SDK Cloud KMS.

# TODO(developer): uncomment these values before running the sample.
# project_id  = "my-project"
# location_id = "us-east1"
# key_ring_id = "my-key-ring"
# key_id      = "my-key"
# plaintext  = "..."

# Require the library.
require "google/cloud/kms"

# Create the client.
client = Google::Cloud::Kms.key_management_service

# Build the parent key name.
key_name = client.crypto_key_path project:    project_id,
                                  location:   location_id,
                                  key_ring:   key_ring_id,
                                  crypto_key: key_id

# Call the API.
response = client.encrypt name: key_name, plaintext: plaintext
puts "Ciphertext: #{Base64.strict_encode64 response.ciphertext}"

API

Contoh ini menggunakan curl sebagai klien HTTP untuk menunjukkan penggunaan API. Untuk informasi selengkapnya tentang kontrol akses, lihat Mengakses Cloud KMS API.

Saat menggunakan JSON dan REST API, konten harus dienkode base-64 agar dapat dienkripsi oleh Cloud KMS.

Tips: Anda dapat mengenkode data sebagai base64 atau mendekode data menggunakan perintah base64 di Linux atau macOS, atau perintah Base64.exe di Windows. Bahasa pemrograman dan pembuatan skrip biasanya mencakup library untuk encoding base64. Untuk contoh command line, lihat Encoding Base64 dalam dokumentasi Cloud Vision API.

Untuk mengenkripsi data, buat permintaan POST dan berikan project serta informasi kunci yang sesuai, serta tentukan teks berenkode base64 yang akan dienkripsi di kolom plaintext dari isi permintaan.

curl "https://cloudkms.googleapis.com/v1/projects/project-id/locations/location/keyRings/key-ring-name/cryptoKeys/key-name:encrypt" \
  --request "POST" \
  --header "authorization: Bearer token" \
  --header "content-type: application/json" \
  --data "{\"plaintext\": \"base64-encoded-input\"}"

Berikut adalah contoh payload dengan data berenkode base64:

{
  "plaintext": "U3VwZXIgc2VjcmV0IHRleHQgdGhhdCBtdXN0IGJlIGVuY3J5cHRlZAo=",
}

Mendekripsi ciphertext

Untuk mendekripsi konten terenkripsi, Anda harus menggunakan kunci yang sama dengan yang digunakan untuk mengenkripsi konten.

gcloud

Untuk menggunakan Cloud KMS di command line, Instal atau upgrade Google Cloud CLI ke versi terbaru terlebih dahulu.

gcloud kms decrypt \
    --key key \
    --keyring key-ring \
    --location location  \
    --ciphertext-file file-path-with-encrypted-data \
    --plaintext-file file-path-to-store-plaintext

Ganti key dengan nama kunci yang akan digunakan untuk dekripsi. Ganti key-ring dengan nama key ring tempat kunci akan berada. Ganti location dengan lokasi Cloud KMS untuk key ring. Ganti file-path-with-encrypted-data dan file-path-to-store-plaintext dengan jalur file lokal untuk membaca data terenkripsi dan menyimpan output yang didekripsi.

Untuk mengetahui informasi tentang semua tanda dan nilai yang memungkinkan, jalankan perintah dengan tanda --help.

C#

Untuk menjalankan kode ini, siapkan lingkungan pengembangan C# terlebih dahulu lalu instal Cloud KMS C# SDK.

using Google.Cloud.Kms.V1;
using Google.Protobuf;
using System.Text;

public class DecryptSymmetricSample
{
    public string DecryptSymmetric(
      string projectId = "my-project", string locationId = "us-east1", string keyRingId = "my-key-ring", string keyId = "my-key",
      byte[] ciphertext = null)
    {
        // Create the client.
        KeyManagementServiceClient client = KeyManagementServiceClient.Create();

        // Build the key name.
        CryptoKeyName keyName = new CryptoKeyName(projectId, locationId, keyRingId, keyId);

        // Call the API.
        DecryptResponse result = client.Decrypt(keyName, ByteString.CopyFrom(ciphertext));

        // Get the plaintext. Cryptographic plaintexts and ciphertexts are
        // always byte arrays.
        byte[] plaintext = result.Plaintext.ToByteArray();

        // Return the result.
        return Encoding.UTF8.GetString(plaintext);
    }
}

Go

Untuk menjalankan kode ini, siapkan lingkungan pengembangan Go terlebih dahulu lalu instal Cloud KMS Go SDK.

import (
	"context"
	"fmt"
	"hash/crc32"
	"io"

	kms "cloud.google.com/go/kms/apiv1"
	"cloud.google.com/go/kms/apiv1/kmspb"
	"google.golang.org/protobuf/types/known/wrapperspb"
)

// decryptSymmetric will decrypt the input ciphertext bytes using the specified symmetric key.
func decryptSymmetric(w io.Writer, name string, ciphertext []byte) error {
	// name := "projects/my-project/locations/us-east1/keyRings/my-key-ring/cryptoKeys/my-key"
	// ciphertext := []byte("...")  // result of a symmetric encryption call

	// Create the client.
	ctx := context.Background()
	client, err := kms.NewKeyManagementClient(ctx)
	if err != nil {
		return fmt.Errorf("failed to create kms client: %w", err)
	}
	defer client.Close()

	// Optional, but recommended: Compute ciphertext's CRC32C.
	crc32c := func(data []byte) uint32 {
		t := crc32.MakeTable(crc32.Castagnoli)
		return crc32.Checksum(data, t)
	}
	ciphertextCRC32C := crc32c(ciphertext)

	// Build the request.
	req := &kmspb.DecryptRequest{
		Name:             name,
		Ciphertext:       ciphertext,
		CiphertextCrc32C: wrapperspb.Int64(int64(ciphertextCRC32C)),
	}

	// Call the API.
	result, err := client.Decrypt(ctx, req)
	if err != nil {
		return fmt.Errorf("failed to decrypt ciphertext: %w", err)
	}

	// Optional, but recommended: perform integrity verification on result.
	// For more details on ensuring E2E in-transit integrity to and from Cloud KMS visit:
	// https://cloud.google.com/kms/docs/data-integrity-guidelines
	if int64(crc32c(result.Plaintext)) != result.PlaintextCrc32C.Value {
		return fmt.Errorf("Decrypt: response corrupted in-transit")
	}

	fmt.Fprintf(w, "Decrypted plaintext: %s", result.Plaintext)
	return nil
}

Java

Untuk menjalankan kode ini, siapkan lingkungan pengembangan Java terlebih dahulu dan instal Java SDK Cloud KMS.

import com.google.cloud.kms.v1.CryptoKeyName;
import com.google.cloud.kms.v1.DecryptResponse;
import com.google.cloud.kms.v1.KeyManagementServiceClient;
import com.google.protobuf.ByteString;
import java.io.IOException;

public class DecryptSymmetric {

  public void decryptSymmetric() throws IOException {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "your-project-id";
    String locationId = "us-east1";
    String keyRingId = "my-key-ring";
    String keyId = "my-key";
    byte[] ciphertext = null;
    decryptSymmetric(projectId, locationId, keyRingId, keyId, ciphertext);
  }

  // Decrypt data that was encrypted using a symmetric key.
  public void decryptSymmetric(
      String projectId, String locationId, String keyRingId, String keyId, byte[] ciphertext)
      throws IOException {
    // Initialize client that will be used to send requests. This client only
    // needs to be created once, and can be reused for multiple requests. After
    // completing all of your requests, call the "close" method on the client to
    // safely clean up any remaining background resources.
    try (KeyManagementServiceClient client = KeyManagementServiceClient.create()) {
      // Build the key version name from the project, location, key ring, and
      // key.
      CryptoKeyName keyName = CryptoKeyName.of(projectId, locationId, keyRingId, keyId);

      // Decrypt the response.
      DecryptResponse response = client.decrypt(keyName, ByteString.copyFrom(ciphertext));
      System.out.printf("Plaintext: %s%n", response.getPlaintext().toStringUtf8());
    }
  }
}

Node.js

Untuk menjalankan kode ini, siapkan lingkungan pengembangan Node.js terlebih dahulu, lalu instal Node.js SDK Cloud KMS.

//
// TODO(developer): Uncomment these variables before running the sample.
//
// const projectId = 'my-project';
// const locationId = 'us-east1';
// const keyRingId = 'my-key-ring';
// const keyId = 'my-key';
// Ciphertext must be either a Buffer object or a base-64 encoded string
// const ciphertext = Buffer.from('...');

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

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

// Build the key name
const keyName = client.cryptoKeyPath(projectId, locationId, keyRingId, keyId);

// Optional, but recommended: compute ciphertext's CRC32C.
const crc32c = require('fast-crc32c');
const ciphertextCrc32c = crc32c.calculate(ciphertext);

async function decryptSymmetric() {
  const [decryptResponse] = await client.decrypt({
    name: keyName,
    ciphertext: ciphertext,
    ciphertextCrc32c: {
      value: ciphertextCrc32c,
    },
  });

  // Optional, but recommended: perform integrity verification on decryptResponse.
  // For more details on ensuring E2E in-transit integrity to and from Cloud KMS visit:
  // https://cloud.google.com/kms/docs/data-integrity-guidelines
  if (
    crc32c.calculate(decryptResponse.plaintext) !==
    Number(decryptResponse.plaintextCrc32c.value)
  ) {
    throw new Error('Decrypt: response corrupted in-transit');
  }

  const plaintext = decryptResponse.plaintext.toString();

  console.log(`Plaintext: ${plaintext}`);
  return plaintext;
}

return decryptSymmetric();

PHP

Untuk menjalankan kode ini, pelajari cara menggunakan PHP di Google Cloud terlebih dahulu dan instal PHP SDK Cloud KMS.

use Google\Cloud\Kms\V1\Client\KeyManagementServiceClient;
use Google\Cloud\Kms\V1\DecryptRequest;

function decrypt_symmetric(
    string $projectId = 'my-project',
    string $locationId = 'us-east1',
    string $keyRingId = 'my-key-ring',
    string $keyId = 'my-key',
    string $ciphertext = '...'
) {
    // Create the Cloud KMS client.
    $client = new KeyManagementServiceClient();

    // Build the key name.
    $keyName = $client->cryptoKeyName($projectId, $locationId, $keyRingId, $keyId);

    // Call the API.
    $decryptRequest = (new DecryptRequest())
        ->setName($keyName)
        ->setCiphertext($ciphertext);
    $decryptResponse = $client->decrypt($decryptRequest);
    printf('Plaintext: %s' . PHP_EOL, $decryptResponse->getPlaintext());

    return $decryptResponse;
}

Python

Untuk menjalankan kode ini, siapkan lingkungan pengembangan Python terlebih dahulu lalu instal Cloud KMS Python SDK.

from google.cloud import kms

def decrypt_symmetric(
    project_id: str, location_id: str, key_ring_id: str, key_id: str, ciphertext: bytes
) -> kms.DecryptResponse:
    """
    Decrypt the ciphertext using the symmetric key

    Args:
        project_id (string): Google Cloud project ID (e.g. 'my-project').
        location_id (string): Cloud KMS location (e.g. 'us-east1').
        key_ring_id (string): ID of the Cloud KMS key ring (e.g. 'my-key-ring').
        key_id (string): ID of the key to use (e.g. 'my-key').
        ciphertext (bytes): Encrypted bytes to decrypt.

    Returns:
        DecryptResponse: Response including plaintext.

    """

    # Create the client.
    client = kms.KeyManagementServiceClient()

    # Build the key name.
    key_name = client.crypto_key_path(project_id, location_id, key_ring_id, key_id)

    # Optional, but recommended: compute ciphertext's CRC32C.
    # See crc32c() function defined below.
    ciphertext_crc32c = crc32c(ciphertext)

    # Call the API.
    decrypt_response = client.decrypt(
        request={
            "name": key_name,
            "ciphertext": ciphertext,
            "ciphertext_crc32c": ciphertext_crc32c,
        }
    )

    # Optional, but recommended: perform integrity verification on decrypt_response.
    # For more details on ensuring E2E in-transit integrity to and from Cloud KMS visit:
    # https://cloud.google.com/kms/docs/data-integrity-guidelines
    if not decrypt_response.plaintext_crc32c == crc32c(decrypt_response.plaintext):
        raise Exception(
            "The response received from the server was corrupted in-transit."
        )
    # End integrity verification

    print(f"Plaintext: {decrypt_response.plaintext!r}")
    return decrypt_response

def crc32c(data: bytes) -> int:
    """
    Calculates the CRC32C checksum of the provided data.
    Args:
        data: the bytes over which the checksum should be calculated.
    Returns:
        An int representing the CRC32C checksum of the provided bytes.
    """
    import crcmod  # type: ignore

    crc32c_fun = crcmod.predefined.mkPredefinedCrcFun("crc-32c")
    return crc32c_fun(data)

Ruby

Untuk menjalankan kode ini, siapkan lingkungan pengembangan Ruby terlebih dahulu dan instal Ruby SDK Cloud KMS.

# TODO(developer): uncomment these values before running the sample.
# project_id  = "my-project"
# location_id = "us-east1"
# key_ring_id = "my-key-ring"
# key_id      = "my-key"
# ciphertext  = "..."

# Require the library.
require "google/cloud/kms"

# Create the client.
client = Google::Cloud::Kms.key_management_service

# Build the parent key name.
key_name = client.crypto_key_path project:    project_id,
                                  location:   location_id,
                                  key_ring:   key_ring_id,
                                  crypto_key: key_id

# Call the API.
response = client.decrypt name: key_name, ciphertext: ciphertext
puts "Plaintext: #{response.plaintext}"

API

Contoh ini menggunakan curl sebagai klien HTTP untuk menunjukkan penggunaan API. Untuk informasi selengkapnya tentang kontrol akses, lihat Mengakses Cloud KMS API.

Teks terdekripsi yang ditampilkan dalam JSON dari Cloud KMS dienkode menggunakan base64.

Tips: Anda dapat mengenkode data sebagai base64 atau mendekode data menggunakan perintah base64 di Linux atau macOS, atau perintah Base64.exe di Windows. Bahasa pemrograman dan pembuatan skrip biasanya mencakup library untuk encoding base64. Untuk contoh command line, lihat Encoding Base64 dalam dokumentasi Cloud Vision API.

Untuk mendekripsi data terenkripsi, buat permintaan POST dan berikan project serta informasi kunci yang sesuai, serta tentukan teks terenkripsi (cipher) yang akan didekripsi di kolom ciphertext pada isi permintaan.

curl "https://cloudkms.googleapis.com/v1/projects/project-id/locations/location/keyRings/key-ring-name/cryptoKeys/key-name:decrypt" \
  --request "POST" \
  --header "authorization: Bearer token" \
  --header "content-type: application/json" \
  --data "{\"ciphertext\": \"encrypted-content\"}"

Berikut adalah contoh payload dengan data berenkode base64:

{
  "ciphertext": "CiQAhMwwBo61cHas7dDgifrUFs5zNzBJ2uZtVFq4ZPEl6fUVT4kSmQ...",
}

Langkah berikutnya

• Contoh enkripsi dalam topik ini menggunakan kunci simetris dengan tingkat perlindungan HSM. Untuk mengenkripsi menggunakan kunci asimetris dengan tingkat perlindungan HSM, ikuti langkah-langkah di Mengenkripsi dan mendekripsi data dengan kunci asimetris dengan perubahan berikut:

  • Buat key ring di salah satu region yang didukung untuk Cloud HSM.
  • Buat kunci dengan HSM level perlindungan.

• Untuk menggunakan kunci asimetris dengan tingkat perlindungan HSM untuk penandatanganan kurva eliptik atau penandatanganan RSA, ikuti langkah-langkah di Membuat dan memvalidasi tanda tangan dengan perubahan ini:

  • Buat key ring di salah satu region yang didukung untuk Cloud HSM.
  • Buat kunci dengan HSM level perlindungan.

• Mulai menggunakan API.

• Lihat Referensi Cloud KMS API.

• Baca Panduan cara kerja untuk mulai membuat, merotasi, dan menetapkan izin pada kunci.

• Baca Concepts untuk lebih memahami hierarki objek, status kunci, dan rotasi kunci.

• Pelajari Logging di Cloud KMS. Perlu diperhatikan bahwa logging didasarkan pada operasi, dan berlaku untuk kunci dengan tingkat perlindungan HSM dan software.

• Pelajari lebih lanjut cara Cloud HSM melindungi data Anda di laporan resmi arsitektur Cloud HSM.

Batasan umum

• Ukuran pesan dibatasi hingga 8 KiB (bukan 64 KiB untuk kunci software Cloud KMS) untuk teks biasa dan ciphertext yang disediakan pengguna, termasuk data terautentikasi tambahan.

• Cloud HSM mungkin tidak tersedia di multi-region atau region ganda. Untuk mengetahui detailnya, lihat Region yang didukung untuk Cloud HSM.

• Jika Anda menggunakan kunci Cloud HSM dengan integrasi kunci enkripsi yang dikelola pelanggan (CMEK) di layanan Google Cloud lain, lokasi yang Anda gunakan untuk layanan harus sama persis dengan lokasi kunci Cloud HSM Anda. Hal ini berlaku untuk lokasi regional, regional ganda, dan multi-regional.

  Untuk mengetahui informasi selengkapnya tentang integrasi CMEK, lihat bagian Enkripsi dalam penyimpanan yang relevan.

• Saat ini, operasi kunci untuk kunci asimetris yang disimpan di Cloud HSM dapat menimbulkan latensi yang jauh lebih besar dibandingkan dengan menggunakan kunci software Cloud KMS.

Rak Bare Metal HSM

Google Cloud menawarkan opsi HSM tambahan, seperti tenant tunggal. Bare Metal Rack HSM tersedia bagi pelanggan untuk menghosting HSM mereka sendiri di ruang yang disediakan Google. Tanyakan kepada perwakilan akun Anda untuk mendapatkan informasi tambahan.