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91 lines
3.5 KiB
Protocol Buffer
91 lines
3.5 KiB
Protocol Buffer
/*
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Copyright 2022 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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// To regenerate api.pb.go run `hack/update-codegen.sh protobindings`
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syntax = "proto3";
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package v2;
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option go_package = "k8s.io/kms/apis/v2";
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// This service defines the public APIs for remote KMS provider.
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service KeyManagementService {
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// this API is meant to be polled
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rpc Status(StatusRequest) returns (StatusResponse) {}
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// Execute decryption operation in KMS provider.
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rpc Decrypt(DecryptRequest) returns (DecryptResponse) {}
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// Execute encryption operation in KMS provider.
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rpc Encrypt(EncryptRequest) returns (EncryptResponse) {}
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}
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message StatusRequest {}
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message StatusResponse {
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// Version of the KMS gRPC plugin API. Must equal v2 to v2beta1 (v2 is recommended, but both are equivalent).
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string version = 1;
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// Any value other than "ok" is failing healthz. On failure, the associated API server healthz endpoint will contain this value as part of the error message.
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string healthz = 2;
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// the current write key, used to determine staleness of data updated via value.Transformer.TransformFromStorage.
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// keyID must satisfy the following constraints:
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// 1. The keyID is not empty.
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// 2. The size of keyID is less than 1 kB.
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string key_id = 3;
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}
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message DecryptRequest {
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// The data to be decrypted.
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bytes ciphertext = 1;
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// UID is a unique identifier for the request.
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string uid = 2;
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// The keyID that was provided to the apiserver during encryption.
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// This represents the KMS KEK that was used to encrypt the data.
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string key_id = 3;
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// Additional metadata that was sent by the KMS plugin during encryption.
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map<string, bytes> annotations = 4;
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}
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message DecryptResponse {
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// The decrypted data.
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bytes plaintext = 1;
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}
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message EncryptRequest {
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// The data to be encrypted.
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bytes plaintext = 1;
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// UID is a unique identifier for the request.
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string uid = 2;
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}
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message EncryptResponse {
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// The encrypted data.
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// ciphertext must satisfy the following constraints:
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// 1. The ciphertext is not empty.
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// 2. The ciphertext is less than 1 kB.
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bytes ciphertext = 1;
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// The KMS key ID used to encrypt the data. This must always refer to the KMS KEK and not any local KEKs that may be in use.
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// This can be used to inform staleness of data updated via value.Transformer.TransformFromStorage.
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// keyID must satisfy the following constraints:
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// 1. The keyID is not empty.
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// 2. The size of keyID is less than 1 kB.
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string key_id = 2;
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// Additional metadata to be stored with the encrypted data.
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// This data is stored in plaintext in etcd. KMS plugin implementations are responsible for pre-encrypting any sensitive data.
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// Annotations must satisfy the following constraints:
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// 1. Annotation key must be a fully qualified domain name that conforms to the definition in DNS (RFC 1123).
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// 2. The size of annotations keys + values is less than 32 kB.
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map<string, bytes> annotations = 3;
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}
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