83 lines
3.1 KiB
Protocol Buffer
83 lines
3.1 KiB
Protocol Buffer
// Copyright 2013 Google Inc. All Rights Reserved.
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// Author: tinskip@google.com (Thomas Inskip)
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//
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// Description:
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// ClientIdentification messages used by provisioning and license protocols.
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syntax = "proto2";
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package widevine;
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option java_package = "com.google.video.widevine.protos";
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option java_outer_classname = "ClientIdentificationProtos";
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// ClientIdentification message used to authenticate the client device.
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message ClientIdentification {
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enum TokenType {
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KEYBOX = 0;
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DRM_DEVICE_CERTIFICATE = 1;
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REMOTE_ATTESTATION_CERTIFICATE = 2;
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OEM_DEVICE_CERTIFICATE = 3;
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}
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message NameValue {
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optional string name = 1;
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optional string value = 2;
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}
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// Capabilities which not all clients may support. Used for the license
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// exchange protocol only.
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message ClientCapabilities {
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enum HdcpVersion {
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HDCP_NONE = 0;
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HDCP_V1 = 1;
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HDCP_V2 = 2;
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HDCP_V2_1 = 3;
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HDCP_V2_2 = 4;
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HDCP_NO_DIGITAL_OUTPUT = 0xff;
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}
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optional bool client_token = 1 [default = false];
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optional bool session_token = 2 [default = false];
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optional bool video_resolution_constraints = 3 [default = false];
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optional HdcpVersion max_hdcp_version = 4 [default = HDCP_NONE];
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optional uint32 oem_crypto_api_version = 5;
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// Client has hardware support for protecting the usage table, such as
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// storing the generation number in secure memory. For Details, see:
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// https://docs.google.com/document/d/1Mm8oB51SYAgry62mEuh_2OEkabikBiS61kN7HsDnh9Y/edit#heading=h.xgjl2srtytjt
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optional bool anti_rollback_usage_table = 6 [default = false];
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}
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// Type of factory-provisioned device root of trust. Optional.
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optional TokenType type = 1 [default = KEYBOX];
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// Factory-provisioned device root of trust. Required.
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optional bytes token = 2;
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// Optional client information name/value pairs.
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repeated NameValue client_info = 3;
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// Client token generated by the content provider. Optional.
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optional bytes provider_client_token = 4;
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// Number of licenses received by the client to which the token above belongs.
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// Only present if client_token is specified.
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optional uint32 license_counter = 5;
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// List of non-baseline client capabilities.
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optional ClientCapabilities client_capabilities = 6;
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}
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// EncryptedClientIdentification message used to hold ClientIdentification
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// messages encrypted for privacy purposes.
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message EncryptedClientIdentification {
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// Service ID for which the ClientIdentifcation is encrypted (owner of service
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// certificate).
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optional string service_id = 1;
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// Serial number for the service certificate for which ClientIdentification is
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// encrypted.
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optional bytes service_certificate_serial_number = 2;
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// Serialized ClientIdentification message, encrypted with the privacy key using
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// AES-128-CBC with PKCS#5 padding.
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optional bytes encrypted_client_id = 3;
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// Initialization vector needed to decrypt encrypted_client_id.
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optional bytes encrypted_client_id_iv = 4;
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// AES-128 privacy key, encrypted with the service public key using RSA-OAEP.
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optional bytes encrypted_privacy_key = 5;
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}
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