1/* 2 * Copyright 2017, The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17syntax = "proto2"; 18 19package android.clearkeycas; 20 21option java_package = "com.google.video.clearkey.protos"; 22 23// The Asset is the data describing licensing requirements and polciy for a 24// customer's video asset. 25// 26// The asset_id must not be set on creation. It is only used for assets of 27// CasType: CLEARKEY_CAS. 28// 29message Asset { 30 // Indicates the type of digital rights management scheme used. 31 // CLEARKEY_CAS: Clearkey Media CAS. 32 enum CasType { 33 UNKNOWN = 0; 34 CLEARKEY_CAS = 1; 35 } 36 37 // Must be unset on creation. Required for mutate operations on CLEARKEY_CAS assets. 38 optional uint64 id = 1; 39 40 // Organization-specified name of the asset. Required. Must not be empty. 41 // 'bytes' instead of 'string' due to UTF-8 validation in the latter. 42 optional bytes name = 2; 43 44 // The lowercase_organization_name is required. It's a foreign key to the 45 // Organization table and part of the primary key for the Asset table. 46 optional string lowercase_organization_name = 3; 47 48 // The policy_name is required. It's a foreign key to the policy table. 49 optional string policy_name = 4; // Name of the Policy to apply to this asset. 50 51 // Key information for decrypting content. Not used for CLEARKEY_CAS. 52 optional AssetKey asset_key = 5; 53 54 optional CasType cas_type = 6 [default = UNKNOWN]; 55} 56 57// AssetKey defines a key that can be used to decrypt the license. 58// Note: In the previous implementation, the schema accommodated multiple 59// asset keys per asset. This is not supported in this implementation. 60message AssetKey { 61 optional bytes encryption_key = 1; // 256-byte key for the asset. 62} 63