// Copyright 2026 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.vectorsearch.v1;

import "google/api/field_behavior.proto";
import "google/api/resource.proto";

option csharp_namespace = "Google.Cloud.VectorSearch.V1";
option go_package = "cloud.google.com/go/vectorsearch/apiv1/vectorsearchpb;vectorsearchpb";
option java_multiple_files = true;
option java_outer_classname = "EncryptionSpecProto";
option java_package = "com.google.cloud.vectorsearch.v1";
option php_namespace = "Google\\Cloud\\VectorSearch\\V1";
option ruby_package = "Google::Cloud::VectorSearch::V1";
option (google.api.resource_definition) = {
  type: "cloudkms.googleapis.com/CryptoKey"
  pattern: "projects/{project}/locations/{location}/keyRings/{key_ring}/cryptoKeys/{crypto_key}"
};

// Represents a customer-managed encryption key specification that can be
// applied to a Vector Search collection.
message EncryptionSpec {
  // Required. Resource name of the Cloud KMS key used to protect the resource.
  //
  // The Cloud KMS key must be in the same region as the resource. It must have
  // the format
  // `projects/{project}/locations/{location}/keyRings/{key_ring}/cryptoKeys/{crypto_key}`.
  string crypto_key_name = 1 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {
      type: "cloudkms.googleapis.com/CryptoKey"
    }
  ];
}