// Copyright 2018 Google LLC.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//

syntax = "proto3";

package google.cloud.kms.v1;

import "google/api/annotations.proto";
import "google/cloud/kms/v1/resources.proto";
import "google/protobuf/field_mask.proto";
import "google/protobuf/struct.proto";
import "google/protobuf/wrappers.proto";

option cc_enable_arenas = true;
option csharp_namespace = "Google.Cloud.Kms.V1";
option go_package = "google.golang.org/genproto/googleapis/cloud/kms/v1;kms";
option java_multiple_files = true;
option java_outer_classname = "KmsProto";
option java_package = "com.google.cloud.kms.v1";
option php_namespace = "Google\\Cloud\\Kms\\V1";

// Google Cloud Key Management Service
//
// Manages cryptographic keys and operations using those keys. Implements a REST
// model with the following objects:
//
// * [KeyRing][google.cloud.kms.v1.KeyRing]
// * [CryptoKey][google.cloud.kms.v1.CryptoKey]
// * [CryptoKeyVersion][google.cloud.kms.v1.CryptoKeyVersion]
//
// If you are using manual gRPC libraries, see
// [Using gRPC with Cloud KMS](https://cloud.google.com/kms/docs/grpc).
service KeyManagementService {
  // Lists [KeyRings][google.cloud.kms.v1.KeyRing].
  rpc ListKeyRings(ListKeyRingsRequest) returns (ListKeyRingsResponse) {
    option (google.api.http) = {
      get: "/v1/{parent=projects/*/locations/*}/keyRings"
    };
  }

  // Lists [CryptoKeys][google.cloud.kms.v1.CryptoKey].
  rpc ListCryptoKeys(ListCryptoKeysRequest) returns (ListCryptoKeysResponse) {
    option (google.api.http) = {
      get: "/v1/{parent=projects/*/locations/*/keyRings/*}/cryptoKeys"
    };
  }

  // Lists [CryptoKeyVersions][google.cloud.kms.v1.CryptoKeyVersion].
  rpc ListCryptoKeyVersions(ListCryptoKeyVersionsRequest)
      returns (ListCryptoKeyVersionsResponse) {
    option (google.api.http) = {
      get: "/v1/{parent=projects/*/locations/*/keyRings/*/cryptoKeys/*}/cryptoKeyVersions"
    };
  }

  // Returns metadata for a given [KeyRing][google.cloud.kms.v1.KeyRing].
  rpc GetKeyRing(GetKeyRingRequest) returns (KeyRing) {
    option (google.api.http) = {
      get: "/v1/{name=projects/*/locations/*/keyRings/*}"
    };
  }

  // Returns metadata for a given [CryptoKey][google.cloud.kms.v1.CryptoKey], as
  // well as its [primary][google.cloud.kms.v1.CryptoKey.primary]
  // [CryptoKeyVersion][google.cloud.kms.v1.CryptoKeyVersion].
  rpc GetCryptoKey(GetCryptoKeyRequest) returns (CryptoKey) {
    option (google.api.http) = {
      get: "/v1/{name=projects/*/locations/*/keyRings/*/cryptoKeys/*}"
    };
  }

  // Returns metadata for a given
  // [CryptoKeyVersion][google.cloud.kms.v1.CryptoKeyVersion].
  rpc GetCryptoKeyVersion(GetCryptoKeyVersionRequest)
      returns (CryptoKeyVersion) {
    option (google.api.http) = {
      get: "/v1/{name=projects/*/locations/*/keyRings/*/cryptoKeys/*/cryptoKeyVersions/*}"
    };
  }

  // Returns the public key for the given
  // [CryptoKeyVersion][google.cloud.kms.v1.CryptoKeyVersion]. The
  // [CryptoKey.purpose][google.cloud.kms.v1.CryptoKey.purpose] must be
  // [ASYMMETRIC_SIGN][google.cloud.kms.v1.CryptoKey.CryptoKeyPurpose.ASYMMETRIC_SIGN]
  // or
  // [ASYMMETRIC_DECRYPT][google.cloud.kms.v1.CryptoKey.CryptoKeyPurpose.ASYMMETRIC_DECRYPT].
  rpc GetPublicKey(GetPublicKeyRequest) returns (PublicKey) {
    option (google.api.http) = {
      get: "/v1/{name=projects/*/locations/*/keyRings/*/cryptoKeys/*/cryptoKeyVersions/*}/publicKey"
    };
  }

  // Create a new [KeyRing][google.cloud.kms.v1.KeyRing] in a given Project and
  // Location.
  rpc CreateKeyRing(CreateKeyRingRequest) returns (KeyRing) {
    option (google.api.http) = {
      post: "/v1/{parent=projects/*/locations/*}/keyRings"
      body: "key_ring"
    };
  }

  // Create a new [CryptoKey][google.cloud.kms.v1.CryptoKey] within a
  // [KeyRing][google.cloud.kms.v1.KeyRing].
  //
  // [CryptoKey.purpose][google.cloud.kms.v1.CryptoKey.purpose] and
  // [CryptoKey.version_template.algorithm][google.cloud.kms.v1.CryptoKeyVersionTemplate.algorithm]
  // are required.
  rpc CreateCryptoKey(CreateCryptoKeyRequest) returns (CryptoKey) {
    option (google.api.http) = {
      post: "/v1/{parent=projects/*/locations/*/keyRings/*}/cryptoKeys"
      body: "crypto_key"
    };
  }

  // Create a new [CryptoKeyVersion][google.cloud.kms.v1.CryptoKeyVersion] in a
  // [CryptoKey][google.cloud.kms.v1.CryptoKey].
  //
  // The server will assign the next sequential id. If unset,
  // [state][google.cloud.kms.v1.CryptoKeyVersion.state] will be set to
  // [ENABLED][google.cloud.kms.v1.CryptoKeyVersion.CryptoKeyVersionState.ENABLED].
  rpc CreateCryptoKeyVersion(CreateCryptoKeyVersionRequest)
      returns (CryptoKeyVersion) {
    option (google.api.http) = {
      post: "/v1/{parent=projects/*/locations/*/keyRings/*/cryptoKeys/*}/cryptoKeyVersions"
      body: "crypto_key_version"
    };
  }

  // Update a [CryptoKey][google.cloud.kms.v1.CryptoKey].
  rpc UpdateCryptoKey(UpdateCryptoKeyRequest) returns (CryptoKey) {
    option (google.api.http) = {
      patch: "/v1/{crypto_key.name=projects/*/locations/*/keyRings/*/cryptoKeys/*}"
      body: "crypto_key"
    };
  }

  // Update a [CryptoKeyVersion][google.cloud.kms.v1.CryptoKeyVersion]'s
  // metadata.
  //
  // [state][google.cloud.kms.v1.CryptoKeyVersion.state] may be changed between
  // [ENABLED][google.cloud.kms.v1.CryptoKeyVersion.CryptoKeyVersionState.ENABLED]
  // and
  // [DISABLED][google.cloud.kms.v1.CryptoKeyVersion.CryptoKeyVersionState.DISABLED]
  // using this method. See
  // [DestroyCryptoKeyVersion][google.cloud.kms.v1.KeyManagementService.DestroyCryptoKeyVersion]
  // and
  // [RestoreCryptoKeyVersion][google.cloud.kms.v1.KeyManagementService.RestoreCryptoKeyVersion]
  // to move between other states.
  rpc UpdateCryptoKeyVersion(UpdateCryptoKeyVersionRequest)
      returns (CryptoKeyVersion) {
    option (google.api.http) = {
      patch: "/v1/{crypto_key_version.name=projects/*/locations/*/keyRings/*/cryptoKeys/*/cryptoKeyVersions/*}"
      body: "crypto_key_version"
    };
  }

  // Encrypts data, so that it can only be recovered by a call to
  // [Decrypt][google.cloud.kms.v1.KeyManagementService.Decrypt]. The
  // [CryptoKey.purpose][google.cloud.kms.v1.CryptoKey.purpose] must be
  // [ENCRYPT_DECRYPT][google.cloud.kms.v1.CryptoKey.CryptoKeyPurpose.ENCRYPT_DECRYPT].
  rpc Encrypt(EncryptRequest) returns (EncryptResponse) {
    option (google.api.http) = {
      post: "/v1/{name=projects/*/locations/*/keyRings/*/cryptoKeys/**}:encrypt"
      body: "*"
    };
  }

  // Decrypts data that was protected by
  // [Encrypt][google.cloud.kms.v1.KeyManagementService.Encrypt]. The
  // [CryptoKey.purpose][google.cloud.kms.v1.CryptoKey.purpose] must be
  // [ENCRYPT_DECRYPT][google.cloud.kms.v1.CryptoKey.CryptoKeyPurpose.ENCRYPT_DECRYPT].
  rpc Decrypt(DecryptRequest) returns (DecryptResponse) {
    option (google.api.http) = {
      post: "/v1/{name=projects/*/locations/*/keyRings/*/cryptoKeys/*}:decrypt"
      body: "*"
    };
  }

  // Signs data using a [CryptoKeyVersion][google.cloud.kms.v1.CryptoKeyVersion]
  // with [CryptoKey.purpose][google.cloud.kms.v1.CryptoKey.purpose]
  // ASYMMETRIC_SIGN, producing a signature that can be verified with the public
  // key retrieved from
  // [GetPublicKey][google.cloud.kms.v1.KeyManagementService.GetPublicKey].
  rpc AsymmetricSign(AsymmetricSignRequest) returns (AsymmetricSignResponse) {
    option (google.api.http) = {
      post: "/v1/{name=projects/*/locations/*/keyRings/*/cryptoKeys/*/cryptoKeyVersions/*}:asymmetricSign"
      body: "*"
    };
  }

  // Decrypts data that was encrypted with a public key retrieved from
  // [GetPublicKey][google.cloud.kms.v1.KeyManagementService.GetPublicKey]
  // corresponding to a [CryptoKeyVersion][google.cloud.kms.v1.CryptoKeyVersion]
  // with [CryptoKey.purpose][google.cloud.kms.v1.CryptoKey.purpose]
  // ASYMMETRIC_DECRYPT.
  rpc AsymmetricDecrypt(AsymmetricDecryptRequest)
      returns (AsymmetricDecryptResponse) {
    option (google.api.http) = {
      post: "/v1/{name=projects/*/locations/*/keyRings/*/cryptoKeys/*/cryptoKeyVersions/*}:asymmetricDecrypt"
      body: "*"
    };
  }

  // Update the version of a [CryptoKey][google.cloud.kms.v1.CryptoKey] that
  // will be used in
  // [Encrypt][google.cloud.kms.v1.KeyManagementService.Encrypt].
  //
  // Returns an error if called on an asymmetric key.
  rpc UpdateCryptoKeyPrimaryVersion(UpdateCryptoKeyPrimaryVersionRequest)
      returns (CryptoKey) {
    option (google.api.http) = {
      post: "/v1/{name=projects/*/locations/*/keyRings/*/cryptoKeys/*}:updatePrimaryVersion"
      body: "*"
    };
  }

  // Schedule a [CryptoKeyVersion][google.cloud.kms.v1.CryptoKeyVersion] for
  // destruction.
  //
  // Upon calling this method,
  // [CryptoKeyVersion.state][google.cloud.kms.v1.CryptoKeyVersion.state] will
  // be set to
  // [DESTROY_SCHEDULED][google.cloud.kms.v1.CryptoKeyVersion.CryptoKeyVersionState.DESTROY_SCHEDULED]
  // and [destroy_time][google.cloud.kms.v1.CryptoKeyVersion.destroy_time] will
  // be set to a time 24 hours in the future, at which point the
  // [state][google.cloud.kms.v1.CryptoKeyVersion.state] will be changed to
  // [DESTROYED][google.cloud.kms.v1.CryptoKeyVersion.CryptoKeyVersionState.DESTROYED],
  // and the key material will be irrevocably destroyed.
  //
  // Before the
  // [destroy_time][google.cloud.kms.v1.CryptoKeyVersion.destroy_time] is
  // reached,
  // [RestoreCryptoKeyVersion][google.cloud.kms.v1.KeyManagementService.RestoreCryptoKeyVersion]
  // may be called to reverse the process.
  rpc DestroyCryptoKeyVersion(DestroyCryptoKeyVersionRequest)
      returns (CryptoKeyVersion) {
    option (google.api.http) = {
      post: "/v1/{name=projects/*/locations/*/keyRings/*/cryptoKeys/*/cryptoKeyVersions/*}:destroy"
      body: "*"
    };
  }

  // Restore a [CryptoKeyVersion][google.cloud.kms.v1.CryptoKeyVersion] in the
  // [DESTROY_SCHEDULED][google.cloud.kms.v1.CryptoKeyVersion.CryptoKeyVersionState.DESTROY_SCHEDULED]
  // state.
  //
  // Upon restoration of the CryptoKeyVersion,
  // [state][google.cloud.kms.v1.CryptoKeyVersion.state] will be set to
  // [DISABLED][google.cloud.kms.v1.CryptoKeyVersion.CryptoKeyVersionState.DISABLED],
  // and [destroy_time][google.cloud.kms.v1.CryptoKeyVersion.destroy_time] will
  // be cleared.
  rpc RestoreCryptoKeyVersion(RestoreCryptoKeyVersionRequest)
      returns (CryptoKeyVersion) {
    option (google.api.http) = {
      post: "/v1/{name=projects/*/locations/*/keyRings/*/cryptoKeys/*/cryptoKeyVersions/*}:restore"
      body: "*"
    };
  }
}

// Request message for
// [KeyManagementService.ListKeyRings][google.cloud.kms.v1.KeyManagementService.ListKeyRings].
message ListKeyRingsRequest {
  // Required. The resource name of the location associated with the
  // [KeyRings][google.cloud.kms.v1.KeyRing], in the format
  // `projects/*/locations/*`.
  string parent = 1;

  // Optional limit on the number of [KeyRings][google.cloud.kms.v1.KeyRing] to
  // include in the response.  Further [KeyRings][google.cloud.kms.v1.KeyRing]
  // can subsequently be obtained by including the
  // [ListKeyRingsResponse.next_page_token][google.cloud.kms.v1.ListKeyRingsResponse.next_page_token]
  // in a subsequent request.  If unspecified, the server will pick an
  // appropriate default.
  int32 page_size = 2;

  // Optional pagination token, returned earlier via
  // [ListKeyRingsResponse.next_page_token][google.cloud.kms.v1.ListKeyRingsResponse.next_page_token].
  string page_token = 3;
}

// Request message for
// [KeyManagementService.ListCryptoKeys][google.cloud.kms.v1.KeyManagementService.ListCryptoKeys].
message ListCryptoKeysRequest {
  // Required. The resource name of the [KeyRing][google.cloud.kms.v1.KeyRing]
  // to list, in the format `projects/*/locations/*/keyRings/*`.
  string parent = 1;

  // Optional limit on the number of [CryptoKeys][google.cloud.kms.v1.CryptoKey]
  // to include in the response.  Further
  // [CryptoKeys][google.cloud.kms.v1.CryptoKey] can subsequently be obtained by
  // including the
  // [ListCryptoKeysResponse.next_page_token][google.cloud.kms.v1.ListCryptoKeysResponse.next_page_token]
  // in a subsequent request.  If unspecified, the server will pick an
  // appropriate default.
  int32 page_size = 2;

  // Optional pagination token, returned earlier via
  // [ListCryptoKeysResponse.next_page_token][google.cloud.kms.v1.ListCryptoKeysResponse.next_page_token].
  string page_token = 3;

  // The fields of the primary version to include in the response.
  CryptoKeyVersion.CryptoKeyVersionView version_view = 4;
}

// Request message for
// [KeyManagementService.ListCryptoKeyVersions][google.cloud.kms.v1.KeyManagementService.ListCryptoKeyVersions].
message ListCryptoKeyVersionsRequest {
  // Required. The resource name of the
  // [CryptoKey][google.cloud.kms.v1.CryptoKey] to list, in the format
  // `projects/*/locations/*/keyRings/*/cryptoKeys/*`.
  string parent = 1;

  // Optional limit on the number of
  // [CryptoKeyVersions][google.cloud.kms.v1.CryptoKeyVersion] to include in the
  // response. Further [CryptoKeyVersions][google.cloud.kms.v1.CryptoKeyVersion]
  // can subsequently be obtained by including the
  // [ListCryptoKeyVersionsResponse.next_page_token][google.cloud.kms.v1.ListCryptoKeyVersionsResponse.next_page_token]
  // in a subsequent request. If unspecified, the server will pick an
  // appropriate default.
  int32 page_size = 2;

  // Optional pagination token, returned earlier via
  // [ListCryptoKeyVersionsResponse.next_page_token][google.cloud.kms.v1.ListCryptoKeyVersionsResponse.next_page_token].
  string page_token = 3;

  // The fields to include in the response.
  CryptoKeyVersion.CryptoKeyVersionView view = 4;
}

// Response message for
// [KeyManagementService.ListKeyRings][google.cloud.kms.v1.KeyManagementService.ListKeyRings].
message ListKeyRingsResponse {
  // The list of [KeyRings][google.cloud.kms.v1.KeyRing].
  repeated KeyRing key_rings = 1;

  // A token to retrieve next page of results. Pass this value in
  // [ListKeyRingsRequest.page_token][google.cloud.kms.v1.ListKeyRingsRequest.page_token]
  // to retrieve the next page of results.
  string next_page_token = 2;

  // The total number of [KeyRings][google.cloud.kms.v1.KeyRing] that matched
  // the query.
  int32 total_size = 3;
}

// Response message for
// [KeyManagementService.ListCryptoKeys][google.cloud.kms.v1.KeyManagementService.ListCryptoKeys].
message ListCryptoKeysResponse {
  // The list of [CryptoKeys][google.cloud.kms.v1.CryptoKey].
  repeated CryptoKey crypto_keys = 1;

  // A token to retrieve next page of results. Pass this value in
  // [ListCryptoKeysRequest.page_token][google.cloud.kms.v1.ListCryptoKeysRequest.page_token]
  // to retrieve the next page of results.
  string next_page_token = 2;

  // The total number of [CryptoKeys][google.cloud.kms.v1.CryptoKey] that
  // matched the query.
  int32 total_size = 3;
}

// Response message for
// [KeyManagementService.ListCryptoKeyVersions][google.cloud.kms.v1.KeyManagementService.ListCryptoKeyVersions].
message ListCryptoKeyVersionsResponse {
  // The list of [CryptoKeyVersions][google.cloud.kms.v1.CryptoKeyVersion].
  repeated CryptoKeyVersion crypto_key_versions = 1;

  // A token to retrieve next page of results. Pass this value in
  // [ListCryptoKeyVersionsRequest.page_token][google.cloud.kms.v1.ListCryptoKeyVersionsRequest.page_token]
  // to retrieve the next page of results.
  string next_page_token = 2;

  // The total number of
  // [CryptoKeyVersions][google.cloud.kms.v1.CryptoKeyVersion] that matched the
  // query.
  int32 total_size = 3;
}

// Request message for
// [KeyManagementService.GetKeyRing][google.cloud.kms.v1.KeyManagementService.GetKeyRing].
message GetKeyRingRequest {
  // The [name][google.cloud.kms.v1.KeyRing.name] of the
  // [KeyRing][google.cloud.kms.v1.KeyRing] to get.
  string name = 1;
}

// Request message for
// [KeyManagementService.GetCryptoKey][google.cloud.kms.v1.KeyManagementService.GetCryptoKey].
message GetCryptoKeyRequest {
  // The [name][google.cloud.kms.v1.CryptoKey.name] of the
  // [CryptoKey][google.cloud.kms.v1.CryptoKey] to get.
  string name = 1;
}

// Request message for
// [KeyManagementService.GetCryptoKeyVersion][google.cloud.kms.v1.KeyManagementService.GetCryptoKeyVersion].
message GetCryptoKeyVersionRequest {
  // The [name][google.cloud.kms.v1.CryptoKeyVersion.name] of the
  // [CryptoKeyVersion][google.cloud.kms.v1.CryptoKeyVersion] to get.
  string name = 1;
}

// Request message for
// [KeyManagementService.GetPublicKey][google.cloud.kms.v1.KeyManagementService.GetPublicKey].
message GetPublicKeyRequest {
  // The [name][google.cloud.kms.v1.CryptoKeyVersion.name] of the
  // [CryptoKeyVersion][google.cloud.kms.v1.CryptoKeyVersion] public key to get.
  string name = 1;
}

// Request message for
// [KeyManagementService.CreateKeyRing][google.cloud.kms.v1.KeyManagementService.CreateKeyRing].
message CreateKeyRingRequest {
  // Required. The resource name of the location associated with the
  // [KeyRings][google.cloud.kms.v1.KeyRing], in the format
  // `projects/*/locations/*`.
  string parent = 1;

  // Required. It must be unique within a location and match the regular
  // expression `[a-zA-Z0-9_-]{1,63}`
  string key_ring_id = 2;

  // A [KeyRing][google.cloud.kms.v1.KeyRing] with initial field values.
  KeyRing key_ring = 3;
}

// Request message for
// [KeyManagementService.CreateCryptoKey][google.cloud.kms.v1.KeyManagementService.CreateCryptoKey].
message CreateCryptoKeyRequest {
  // Required. The [name][google.cloud.kms.v1.KeyRing.name] of the KeyRing
  // associated with the [CryptoKeys][google.cloud.kms.v1.CryptoKey].
  string parent = 1;

  // Required. It must be unique within a KeyRing and match the regular
  // expression `[a-zA-Z0-9_-]{1,63}`
  string crypto_key_id = 2;

  // A [CryptoKey][google.cloud.kms.v1.CryptoKey] with initial field values.
  CryptoKey crypto_key = 3;
}

// Request message for
// [KeyManagementService.CreateCryptoKeyVersion][google.cloud.kms.v1.KeyManagementService.CreateCryptoKeyVersion].
message CreateCryptoKeyVersionRequest {
  // Required. The [name][google.cloud.kms.v1.CryptoKey.name] of the
  // [CryptoKey][google.cloud.kms.v1.CryptoKey] associated with the
  // [CryptoKeyVersions][google.cloud.kms.v1.CryptoKeyVersion].
  string parent = 1;

  // A [CryptoKeyVersion][google.cloud.kms.v1.CryptoKeyVersion] with initial
  // field values.
  CryptoKeyVersion crypto_key_version = 2;
}

// Request message for
// [KeyManagementService.UpdateCryptoKey][google.cloud.kms.v1.KeyManagementService.UpdateCryptoKey].
message UpdateCryptoKeyRequest {
  // [CryptoKey][google.cloud.kms.v1.CryptoKey] with updated values.
  CryptoKey crypto_key = 1;

  // Required list of fields to be updated in this request.
  google.protobuf.FieldMask update_mask = 2;
}

// Request message for
// [KeyManagementService.UpdateCryptoKeyVersion][google.cloud.kms.v1.KeyManagementService.UpdateCryptoKeyVersion].
message UpdateCryptoKeyVersionRequest {
  // [CryptoKeyVersion][google.cloud.kms.v1.CryptoKeyVersion] with updated
  // values.
  CryptoKeyVersion crypto_key_version = 1;

  // Required list of fields to be updated in this request.
  google.protobuf.FieldMask update_mask = 2;
}

// Request message for
// [KeyManagementService.Encrypt][google.cloud.kms.v1.KeyManagementService.Encrypt].
message EncryptRequest {
  // Required. The resource name of the
  // [CryptoKey][google.cloud.kms.v1.CryptoKey] or
  // [CryptoKeyVersion][google.cloud.kms.v1.CryptoKeyVersion] to use for
  // encryption.
  //
  // If a [CryptoKey][google.cloud.kms.v1.CryptoKey] is specified, the server
  // will use its [primary version][google.cloud.kms.v1.CryptoKey.primary].
  string name = 1;

  // Required. The data to encrypt. Must be no larger than 64KiB.
  //
  // The maximum size depends on the key version's
  // [protection_level][google.cloud.kms.v1.CryptoKeyVersionTemplate.protection_level].
  // For [SOFTWARE][google.cloud.kms.v1.ProtectionLevel.SOFTWARE] keys, the
  // plaintext must be no larger than 64KiB. For
  // [HSM][google.cloud.kms.v1.ProtectionLevel.HSM] keys, the combined length of
  // the plaintext and additional_authenticated_data fields must be no larger
  // than 8KiB.
  bytes plaintext = 2;

  // Optional data that, if specified, must also be provided during decryption
  // through
  // [DecryptRequest.additional_authenticated_data][google.cloud.kms.v1.DecryptRequest.additional_authenticated_data].
  //
  // The maximum size depends on the key version's
  // [protection_level][google.cloud.kms.v1.CryptoKeyVersionTemplate.protection_level].
  // For [SOFTWARE][google.cloud.kms.v1.ProtectionLevel.SOFTWARE] keys, the AAD
  // must be no larger than 64KiB. For
  // [HSM][google.cloud.kms.v1.ProtectionLevel.HSM] keys, the combined length of
  // the plaintext and additional_authenticated_data fields must be no larger
  // than 8KiB.
  bytes additional_authenticated_data = 3;
}

// Request message for
// [KeyManagementService.Decrypt][google.cloud.kms.v1.KeyManagementService.Decrypt].
message DecryptRequest {
  // Required. The resource name of the
  // [CryptoKey][google.cloud.kms.v1.CryptoKey] to use for decryption. The
  // server will choose the appropriate version.
  string name = 1;

  // Required. The encrypted data originally returned in
  // [EncryptResponse.ciphertext][google.cloud.kms.v1.EncryptResponse.ciphertext].
  bytes ciphertext = 2;

  // Optional data that must match the data originally supplied in
  // [EncryptRequest.additional_authenticated_data][google.cloud.kms.v1.EncryptRequest.additional_authenticated_data].
  bytes additional_authenticated_data = 3;
}

// Request message for
// [KeyManagementService.AsymmetricSign][google.cloud.kms.v1.KeyManagementService.AsymmetricSign].
message AsymmetricSignRequest {
  // Required. The resource name of the
  // [CryptoKeyVersion][google.cloud.kms.v1.CryptoKeyVersion] to use for
  // signing.
  string name = 1;

  // Required. The digest of the data to sign. The digest must be produced with
  // the same digest algorithm as specified by the key version's
  // [algorithm][google.cloud.kms.v1.CryptoKeyVersion.algorithm].
  Digest digest = 3;
}

// Request message for
// [KeyManagementService.AsymmetricDecrypt][google.cloud.kms.v1.KeyManagementService.AsymmetricDecrypt].
message AsymmetricDecryptRequest {
  // Required. The resource name of the
  // [CryptoKeyVersion][google.cloud.kms.v1.CryptoKeyVersion] to use for
  // decryption.
  string name = 1;

  // Required. The data encrypted with the named
  // [CryptoKeyVersion][google.cloud.kms.v1.CryptoKeyVersion]'s public key using
  // OAEP.
  bytes ciphertext = 3;
}

// Response message for
// [KeyManagementService.Decrypt][google.cloud.kms.v1.KeyManagementService.Decrypt].
message DecryptResponse {
  // The decrypted data originally supplied in
  // [EncryptRequest.plaintext][google.cloud.kms.v1.EncryptRequest.plaintext].
  bytes plaintext = 1;
}

// Response message for
// [KeyManagementService.Encrypt][google.cloud.kms.v1.KeyManagementService.Encrypt].
message EncryptResponse {
  // The resource name of the
  // [CryptoKeyVersion][google.cloud.kms.v1.CryptoKeyVersion] used in
  // encryption.
  string name = 1;

  // The encrypted data.
  bytes ciphertext = 2;
}

// Response message for
// [KeyManagementService.AsymmetricSign][google.cloud.kms.v1.KeyManagementService.AsymmetricSign].
message AsymmetricSignResponse {
  // The created signature.
  bytes signature = 1;
}

// Response message for
// [KeyManagementService.AsymmetricDecrypt][google.cloud.kms.v1.KeyManagementService.AsymmetricDecrypt].
message AsymmetricDecryptResponse {
  // The decrypted data originally encrypted with the matching public key.
  bytes plaintext = 1;
}

// Request message for
// [KeyManagementService.UpdateCryptoKeyPrimaryVersion][google.cloud.kms.v1.KeyManagementService.UpdateCryptoKeyPrimaryVersion].
message UpdateCryptoKeyPrimaryVersionRequest {
  // The resource name of the [CryptoKey][google.cloud.kms.v1.CryptoKey] to
  // update.
  string name = 1;

  // The id of the child
  // [CryptoKeyVersion][google.cloud.kms.v1.CryptoKeyVersion] to use as primary.
  string crypto_key_version_id = 2;
}

// Request message for
// [KeyManagementService.DestroyCryptoKeyVersion][google.cloud.kms.v1.KeyManagementService.DestroyCryptoKeyVersion].
message DestroyCryptoKeyVersionRequest {
  // The resource name of the
  // [CryptoKeyVersion][google.cloud.kms.v1.CryptoKeyVersion] to destroy.
  string name = 1;
}

// Request message for
// [KeyManagementService.RestoreCryptoKeyVersion][google.cloud.kms.v1.KeyManagementService.RestoreCryptoKeyVersion].
message RestoreCryptoKeyVersionRequest {
  // The resource name of the
  // [CryptoKeyVersion][google.cloud.kms.v1.CryptoKeyVersion] to restore.
  string name = 1;
}

// A [Digest][google.cloud.kms.v1.Digest] holds a cryptographic message digest.
message Digest {
  // Required. The message digest.
  oneof digest {
    // A message digest produced with the SHA-256 algorithm.
    bytes sha256 = 1;

    // A message digest produced with the SHA-384 algorithm.
    bytes sha384 = 2;

    // A message digest produced with the SHA-512 algorithm.
    bytes sha512 = 3;
  }
}

// Cloud KMS metadata for the given
// [google.cloud.location.Location][google.cloud.location.Location].
message LocationMetadata {
  // Indicates whether [CryptoKeys][google.cloud.kms.v1.CryptoKey] with
  // [protection_level][google.cloud.kms.v1.CryptoKeyVersionTemplate.protection_level]
  // [HSM][google.cloud.kms.v1.ProtectionLevel.HSM] can be created in this
  // location.
  bool hsm_available = 1;
}