Examples with KeyManagementServiceClient com.google.cloud.kms.v1.KeyManagementServiceClient used on opensource projects

Example 96 with KeyManagementServiceClient

use of com.google.cloud.kms.v1.KeyManagementServiceClient in project java-docs-samples by GoogleCloudPlatform.

the class SnippetsIT method testDecryptAsymmetric.

@Test
public void testDecryptAsymmetric() throws IOException, GeneralSecurityException {
    String plaintext = "my message";
    byte[] ciphertext;
    try (KeyManagementServiceClient client = KeyManagementServiceClient.create()) {
        CryptoKeyVersionName keyVersionName = CryptoKeyVersionName.of(PROJECT_ID, LOCATION_ID, KEY_RING_ID, ASYMMETRIC_DECRYPT_KEY_ID, "1");
        PublicKey publicKey = client.getPublicKey(keyVersionName);
        byte[] derKey = convertPemToDer(publicKey.getPem());
        X509EncodedKeySpec keySpec = new X509EncodedKeySpec(derKey);
        java.security.PublicKey rsaKey = KeyFactory.getInstance("RSA").generatePublic(keySpec);
        Cipher cipher = Cipher.getInstance("RSA/ECB/OAEPWithSHA-256AndMGF1Padding");
        OAEPParameterSpec oaepParams = new OAEPParameterSpec("SHA-256", "MGF1", MGF1ParameterSpec.SHA256, PSource.PSpecified.DEFAULT);
        cipher.init(Cipher.ENCRYPT_MODE, rsaKey, oaepParams);
        ciphertext = cipher.doFinal(plaintext.getBytes(StandardCharsets.UTF_8));
    }
    new DecryptAsymmetric().decryptAsymmetric(PROJECT_ID, LOCATION_ID, KEY_RING_ID, ASYMMETRIC_DECRYPT_KEY_ID, "1", ciphertext);
    assertThat(stdOut.toString()).contains("my message");
}

Example 97 with KeyManagementServiceClient

use of com.google.cloud.kms.v1.KeyManagementServiceClient in project java-docs-samples by GoogleCloudPlatform.

the class SnippetsIT method testVerifyAsymmetricEc.

@Test
public void testVerifyAsymmetricEc() throws IOException, GeneralSecurityException {
    String message = "my message";
    byte[] signature;
    try (KeyManagementServiceClient client = KeyManagementServiceClient.create()) {
        CryptoKeyVersionName versionName = CryptoKeyVersionName.of(PROJECT_ID, LOCATION_ID, KEY_RING_ID, ASYMMETRIC_SIGN_EC_KEY_ID, "1");
        MessageDigest sha256 = MessageDigest.getInstance("SHA-256");
        byte[] hash = sha256.digest(message.getBytes(StandardCharsets.UTF_8));
        Digest digest = Digest.newBuilder().setSha256(ByteString.copyFrom(hash)).build();
        signature = client.asymmetricSign(versionName, digest).getSignature().toByteArray();
    }
    new VerifyAsymmetricEc().verifyAsymmetricEc(PROJECT_ID, LOCATION_ID, KEY_RING_ID, ASYMMETRIC_SIGN_EC_KEY_ID, "1", message, signature);
    assertThat(stdOut.toString()).contains("Signature");
}

Example 98 with KeyManagementServiceClient

use of com.google.cloud.kms.v1.KeyManagementServiceClient in project java-docs-samples by GoogleCloudPlatform.

the class SnippetsIT method testDecryptSymmetric.

@Test
public void testDecryptSymmetric() throws IOException {
    String plaintext = "my plaintext";
    byte[] ciphertext;
    try (KeyManagementServiceClient client = KeyManagementServiceClient.create()) {
        CryptoKeyName keyName = CryptoKeyName.of(PROJECT_ID, LOCATION_ID, KEY_RING_ID, SYMMETRIC_KEY_ID);
        EncryptResponse result = client.encrypt(keyName, ByteString.copyFromUtf8(plaintext));
        ciphertext = result.getCiphertext().toByteArray();
    }
    new DecryptSymmetric().decryptSymmetric(PROJECT_ID, LOCATION_ID, KEY_RING_ID, SYMMETRIC_KEY_ID, ciphertext);
    assertThat(stdOut.toString()).contains(plaintext);
}

Example 99 with KeyManagementServiceClient

use of com.google.cloud.kms.v1.KeyManagementServiceClient in project java-docs-samples by GoogleCloudPlatform.

the class SnippetsIT method createAsymmetricSignRsaKey.

private static CryptoKey createAsymmetricSignRsaKey(String keyId) throws IOException {
    try (KeyManagementServiceClient client = KeyManagementServiceClient.create()) {
        CryptoKey key = CryptoKey.newBuilder().setPurpose(CryptoKeyPurpose.ASYMMETRIC_SIGN).setVersionTemplate(CryptoKeyVersionTemplate.newBuilder().setAlgorithm(CryptoKeyVersionAlgorithm.RSA_SIGN_PSS_2048_SHA256).build()).putLabels("foo", "bar").putLabels("zip", "zap").build();
        CryptoKey createdKey = client.createCryptoKey(getKeyRingName(), keyId, key);
        return createdKey;
    }
}

Example 100 with KeyManagementServiceClient

use of com.google.cloud.kms.v1.KeyManagementServiceClient in project java-docs-samples by GoogleCloudPlatform.

the class CreateKeyLabels method createKeyLabels.

// Create a new key with labels.
public void createKeyLabels(String projectId, String locationId, String keyRingId, String id) throws IOException {
    // 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 key to create with labels.
        CryptoKey key = CryptoKey.newBuilder().setPurpose(CryptoKeyPurpose.ENCRYPT_DECRYPT).setVersionTemplate(CryptoKeyVersionTemplate.newBuilder().setAlgorithm(CryptoKeyVersionAlgorithm.GOOGLE_SYMMETRIC_ENCRYPTION)).putLabels("team", "alpha").putLabels("cost_center", "cc1234").build();
        // Create the key.
        CryptoKey createdKey = client.createCryptoKey(keyRingName, id, key);
        System.out.printf("Created key with labels %s%n", createdKey.getName());
    }
}