1da5b1a987
There is no session ID in the parameter list. Test: Compiles, it's a comment change bug: 36735099 Change-Id: I0eccfcb3aa312a694b391c0b5a76e3b8425a7d36
542 lines
25 KiB
Text
542 lines
25 KiB
Text
/**
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* Copyright (C) 2016 The Android Open Source Project
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*
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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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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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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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package android.hardware.drm@1.0;
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import IDrmPluginListener;
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/**
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* Ref: frameworks/native/include/media/drm/DrmAPI.h:DrmPlugin
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*
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* IDrmPlugin is used to interact with a specific drm plugin that was
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* created by IDrm::createPlugin. A drm plugin provides methods for
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* obtaining drm keys that may be used by a codec to decrypt protected
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* video content.
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*/
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interface IDrmPlugin {
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/**
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* Open a new session with the DrmPlugin object. A session ID is returned
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* in the sessionId parameter.
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* @return status the status of the call. The status must be OK or one of
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* the following errors: ERROR_DRM_NOT_PROVISIONED if the device requires
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* provisioning before it can open a session, ERROR_DRM_RESOURCE_BUSY if
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* there are insufficent resources available to open a session,
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* ERROR_DRM_CANNOT_HANDLE, if openSession is not supported at the time of
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* the call or ERROR_DRM_INVALID_STATE if the HAL is in a state where a
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* session cannot be opened.
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* @return sessionId the session ID for the newly opened session
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*/
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openSession() generates (Status status, SessionId sessionId);
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/**
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* Close a session on the DrmPlugin object
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*
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* @param sessionId the session id the call applies to
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* @return status the status of the call. The status must be OK or one of
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* the following errors: ERROR_DRM_SESSION_NOT_OPENED if the session is not
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* opened, BAD_VALUE if the sessionId is invalid or ERROR_DRM_INVALID_STATE
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* if the HAL is in a state where the session cannot be closed.
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*/
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closeSession(SessionId sessionId) generates (Status status);
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/**
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* A key request/response exchange occurs between the app and a License
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* Server to obtain the keys required to decrypt the content.
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* getKeyRequest() is used to obtain an opaque key request blob that is
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* delivered to the license server.
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*
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* @param scope may be a sessionId or a keySetId, depending on the
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* specified keyType. When the keyType is OFFLINE or STREAMING,
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* scope should be set to the sessionId the keys will be provided to.
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* When the keyType is RELEASE, scope should be set to the keySetId
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* of the keys being released.
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* @param initData container-specific data, its meaning is interpreted
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* based on the mime type provided in the mimeType parameter. It could
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* contain, for example, the content ID, key ID or other data obtained
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* from the content metadata that is required to generate the key request.
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* initData may be empty when keyType is RELEASE.
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* @param mimeType identifies the mime type of the content
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* @param keyType specifies if the keys are to be used for streaming,
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* offline or a release
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* @param optionalParameters included in the key request message to
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* allow a client application to provide additional message parameters to
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* the server.
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*
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* @return status the status of the call. The status must be OK or one of
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* the following errors: ERROR_DRM_SESSION_NOT_OPENED if the session is not
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* opened, ERROR_DRM_NOT_PROVISIONED if the device requires provisioning
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* before it can generate a key request, ERROR_DRM_CANNOT_HANDLE if
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* getKeyRequest is not supported at the time of the call, BAD_VALUE if any
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* parameters are invalid or ERROR_DRM_INVALID_STATE if the HAL is in a state
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* where a key request cannot be generated.
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* @return request if successful, the opaque key request blob is returned
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* @return requestType indicates type information about the returned
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* request. The type may be one of INITIAL, RENEWAL or RELEASE. An
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* INITIAL request is the first key request for a license. RENEWAL is a
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* subsequent key request used to refresh the keys in a license. RELEASE
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* corresponds to a keyType of RELEASE, which indicates keys are being
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* released.
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* @return defaultUrl the URL that the request may be sent to, if
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* provided by the drm HAL. The app may choose to override this
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* URL.
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*/
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getKeyRequest(vec<uint8_t> scope, vec<uint8_t> initData,
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string mimeType, KeyType keyType, KeyedVector optionalParameters)
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generates (Status status, vec<uint8_t> request,
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KeyRequestType requestType, string defaultUrl);
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/**
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* After a key response is received by the app, it is provided to the
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* Drm plugin using provideKeyResponse.
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*
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* @param scope may be a sessionId or a keySetId depending on the type
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* of the response. Scope should be set to the sessionId when the response
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* is for either streaming or offline key requests. Scope should be set to
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* the keySetId when the response is for a release request.
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* @param response the response from the key server that is being
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* provided to the drm HAL.
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*
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* @return status the status of the call. The status must be OK or one of
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* the following errors: ERROR_DRM_SESSION_NOT_OPENED if the session is not
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* opened, ERROR_DRM_NOT_PROVISIONED if the device requires provisioning
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* before it can handle the key response, ERROR_DRM_DEVICE_REVOKED if the
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* device has been disabled by the license policy, ERROR_DRM_CANNOT_HANDLE
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* if provideKeyResponse is not supported at the time of the call, BAD_VALUE
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* if any parameters are invalid or ERROR_DRM_INVALID_STATE if the HAL is
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* in a state where a key response cannot be handled.
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* @return keySetId when the response is for an offline key request, a
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* keySetId is returned in the keySetId vector parameter that can be used
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* to later restore the keys to a new session with the method restoreKeys.
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* When the response is for a streaming or release request, no keySetId is
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* returned.
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*/
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provideKeyResponse(vec<uint8_t> scope, vec<uint8_t> response)
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generates (Status status, vec<uint8_t> keySetId);
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/**
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* Remove the current keys from a session
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*
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* @param sessionId the session id the call applies to
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* @return status the status of the call. The status must be OK or one of
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* the following errors: ERROR_DRM_SESSION_NOT_OPENED if the session is not
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* opened, BAD_VALUE if the sessionId is invalid or ERROR_DRM_INVALID_STATE
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* if the HAL is in a state where the keys cannot be removed.
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*/
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removeKeys(SessionId sessionId) generates (Status status);
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/**
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* Restore persisted offline keys into a new session
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*
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* @param sessionId the session id the call applies to
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* @param keySetId identifies the keys to load, obtained from a prior
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* call to provideKeyResponse().
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* @return status the status of the call. The status must be OK or one of
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* the following errors: ERROR_DRM_SESSION_NOT_OPENED if the session is not
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* opened, BAD_VALUE if any parameters are invalid or ERROR_DRM_INVALID_STATE
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* if the HAL is in a state where keys cannot be restored.
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*/
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restoreKeys(SessionId sessionId,
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vec<uint8_t> keySetId) generates (Status status);
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/**
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* Request an informative description of the license for the session. The
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* status is in the form of {name, value} pairs. Since DRM license policies
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* vary by vendor, the specific status field names are determined by each
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* DRM vendor. Refer to your DRM provider documentation for definitions of
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* the field names for a particular drm scheme.
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*
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* @param sessionId the session id the call applies to
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* @return status the status of the call. The status must be OK or one of
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* the following errors: ERROR_DRM_SESSION_NOT_OPENED if the session is not
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* opened, BAD_VALUE if the sessionId is invalid or ERROR_DRM_INVALID_STATE
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* if the HAL is in a state where key status cannot be queried.
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* @return infoList a list of name value pairs describing the license
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*/
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queryKeyStatus(SessionId sessionId)
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generates (Status status, KeyedVector infoList);
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/**
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* A provision request/response exchange occurs between the app and a
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* provisioning server to retrieve a device certificate. getProvisionRequest
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* is used to obtain an opaque provisioning request blob that is delivered
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* to the provisioning server.
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*
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* @param certificateType the type of certificate requested, e.g. "X.509"
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* @param certificateAuthority identifies the certificate authority. A
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* certificate authority (CA) is an entity which issues digital certificates
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* for use by other parties. It is an example of a trusted third party.
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* @return status the status of the call. The status must be OK or one of
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* the following errors: ERROR_DRM_CANNOT_HANDLE if the drm scheme does not
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* require provisioning or ERROR_DRM_INVALID_STATE if the HAL is in a state
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* where the provision request cannot be generated.
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* @return request if successful the opaque certificate request blob
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* is returned
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* @return defaultUrl URL that the provisioning request should be
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* sent to, if known by the HAL implementation. If the HAL implementation
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* does not provide a defaultUrl, the returned string must be empty.
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*/
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getProvisionRequest(string certificateType, string certificateAuthority)
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generates (Status status, vec<uint8_t> request, string defaultUrl);
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/**
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* After a provision response is received by the app from a provisioning
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* server, it is provided to the Drm HAL using provideProvisionResponse.
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* The HAL implementation must receive the provision request and
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* store the provisioned credentials.
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*
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* @param response the opaque provisioning response received by the
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* app from a provisioning server.
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* @return status the status of the call. The status must be OK or one of
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* the following errors: ERROR_DRM_DEVICE_REVOKED if the device has been
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* disabled by the license policy, BAD_VALUE if any parameters are invalid
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* or ERROR_DRM_INVALID_STATE if the HAL is in a state where the provision
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* response cannot be handled.
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* @return certificate the public certificate resulting from the provisioning
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* operation, if any. An empty vector indicates that no certificate was
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* returned.
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* @return wrappedKey an opaque object containing encrypted private key
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* material to be used by signRSA when computing an RSA signature on a
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* message, see the signRSA method.
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*/
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provideProvisionResponse(vec<uint8_t> response) generates (Status status,
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vec<uint8_t> certificate, vec<uint8_t> wrappedKey);
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/**
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* SecureStop is a way of enforcing the concurrent stream limit per
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* subscriber. It can securely monitor the lifetime of sessions across
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* device reboots by periodically persisting the session lifetime
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* status in secure storage.
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*
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* A signed version of the sessionID is written to persistent storage on the
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* device when each MediaCrypto object is created and periodically during
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* playback. The sessionID is signed by the device private key to prevent
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* tampering.
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*
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* When playback is completed the session is destroyed, and the secure
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* stops are queried by the app. The app then delivers the secure stop
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* message to a server which verifies the signature to confirm that the
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* session and its keys have been removed from the device. The persisted
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* record on the device is removed after receiving and verifying the
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* signed response from the server.
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*/
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/**
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* Get all secure stops on the device
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*
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* @return status the status of the call. The status must be OK or
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* ERROR_DRM_INVALID_STATE if the HAL is in a state where the secure stops
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* cannot be returned.
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* @return secureStops a list of the secure stop opaque objects
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*/
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getSecureStops() generates
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(Status status, vec<SecureStop> secureStops);
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/**
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* Get all secure stops by secure stop ID
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*
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* @param secureStopId the ID of the secure stop to return. The
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* secure stop ID is delivered by the key server as part of the key
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* response and must also be known by the app.
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*
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* @return status the status of the call. The status must be OK or one of
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* the following errors: BAD_VALUE if the secureStopId is invalid or
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* ERROR_DRM_INVALID_STATE if the HAL is in a state where the secure stop
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* cannot be returned.
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* @return secureStop the secure stop opaque object
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*/
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getSecureStop(SecureStopId secureStopId)
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generates (Status status, SecureStop secureStop);
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/**
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* Release all secure stops on the device
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*
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* @return status the status of the call. The status must be OK or
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* ERROR_DRM_INVALID_STATE if the HAL is in a state where the secure
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* stops cannot be released.
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*/
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releaseAllSecureStops() generates (Status status);
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/**
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* Release a secure stop by secure stop ID
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*
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* @param secureStopId the ID of the secure stop to release. The
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* secure stop ID is delivered by the key server as part of the key
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* response and must also be known by the app.
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*
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* @return status the status of the call. The status must be OK or one of
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* the following errors: BAD_VALUE if the secureStopId is invalid or
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* ERROR_DRM_INVALID_STATE if the HAL is in a state where the secure stop
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* cannot be released.
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*/
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releaseSecureStop(vec<uint8_t> secureStopId) generates (Status status);
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/**
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* A drm scheme can have properties that are settable and readable
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* by an app. There are a few forms of property access methods,
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* depending on the data type of the property.
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*
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* Property values defined by the public API are:
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* "vendor" [string] identifies the maker of the drm scheme
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* "version" [string] identifies the version of the drm scheme
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* "description" [string] describes the drm scheme
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* 'deviceUniqueId' [byte array] The device unique identifier is
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* established during device provisioning and provides a means of
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* uniquely identifying each device.
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*
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* Since drm scheme properties may vary, additional field names may be
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* defined by each DRM vendor. Refer to your DRM provider documentation
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* for definitions of its additional field names.
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*/
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/**
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* Read a string property value given the property name.
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*
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* @param propertyName the name of the property
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* @return status the status of the call. The status must be OK or one of
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* the following errors: BAD_VALUE if the property name is invalid,
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* ERROR_DRM_CANNOT_HANDLE if the property is not supported, or
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* ERROR_DRM_INVALID_STATE if the HAL is in a state where the property
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* cannot be obtained.
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* @return value the property value string
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*/
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getPropertyString(string propertyName)
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generates (Status status, string value);
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/**
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* Read a byte array property value given the property name.
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*
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* @param propertyName the name of the property
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* @return status the status of the call. The status must be OK or one of
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* the following errors: BAD_VALUE if the property name is invalid,
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* ERROR_DRM_CANNOT_HANDLE if the property is not supported, or
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* ERROR_DRM_INVALID_STATE if the HAL is in a state where the property
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* cannot be obtained.
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* @return value the property value byte array
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*/
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getPropertyByteArray(string propertyName)
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generates (Status status, vec<uint8_t> value);
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/**
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* Write a property string value given the property name
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*
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* @param propertyName the name of the property
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* @param value the value to write
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* @return status the status of the call. The status must be OK or one of
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* the following errors: BAD_VALUE if the property name is invalid,
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* ERROR_DRM_CANNOT_HANDLE if the property is not supported, or
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* ERROR_DRM_INVALID_STATE if the HAL is in a state where the property
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* cannot be set.
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*/
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setPropertyString(string propertyName, string value)
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generates (Status status);
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/**
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* Write a property byte array value given the property name
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*
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* @param propertyName the name of the property
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* @param value the value to write
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* @return status the status of the call. The status must be OK or one of
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* the following errors: BAD_VALUE if the property name is invalid,
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* ERROR_DRM_CANNOT_HANDLE if the property is not supported, or
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* ERROR_DRM_INVALID_STATE if the HAL is in a state where the property
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* cannot be set.
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*/
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setPropertyByteArray(string propertyName, vec<uint8_t> value )
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generates (Status status);
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/**
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* The following methods implement operations on a CryptoSession to support
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* encrypt, decrypt, sign verify operations on operator-provided
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* session keys.
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*/
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/**
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* Set the cipher algorithm to be used for the specified session.
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*
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* @param sessionId the session id the call applies to
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* @param algorithm the algorithm to use. The string conforms to JCA
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* Standard Names for Cipher Transforms and is case insensitive. An
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* example algorithm is "AES/CBC/PKCS5Padding".
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* @return status the status of the call. The status must be OK or one of
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* the following errors: ERROR_DRM_SESSION_NOT_OPENED if the session is not
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* opened, BAD_VALUE if any parameters are invalid or ERROR_DRM_INVALID_STATE
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* if the HAL is in a state where the algorithm cannot be set.
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*/
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setCipherAlgorithm(SessionId sessionId, string algorithm)
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generates (Status status);
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/**
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* Set the MAC algorithm to be used for computing hashes in a session.
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*
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* @param sessionId the session id the call applies to
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* @param algorithm the algorithm to use. The string conforms to JCA
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* Standard Names for Mac Algorithms and is case insensitive. An example MAC
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* algorithm string is "HmacSHA256".
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* @return status the status of the call. The status must be OK or one of the
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* following errors: ERROR_DRM_SESSION_NOT_OPENED if the session is not
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* opened, BAD_VALUE if any parameters are invalid or ERROR_DRM_INVALID_STATE
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* if the HAL is in a state where the algorithm cannot be set.
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*/
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setMacAlgorithm(SessionId sessionId, string algorithm)
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generates (Status status);
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/**
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* Encrypt the provided input buffer with the cipher algorithm specified by
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* setCipherAlgorithm and the key selected by keyId, and return the
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* encrypted data.
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*
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* @param sessionId the session id the call applies to
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* @param keyId the ID of the key to use for encryption
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* @param input the input data to encrypt
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* @param iv the initialization vector to use for encryption
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* @return status the status of the call. The status must be OK or one of the
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* following errors: ERROR_DRM_SESSION_NOT_OPENED if the session is not opened,
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* BAD_VALUE if any parameters are invalid or ERROR_DRM_INVALID_STATE
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* if the HAL is in a state where the encrypt operation cannot be performed.
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* @return output the decrypted data
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*/
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encrypt(SessionId sessionId, vec<uint8_t> keyId, vec<uint8_t> input,
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vec<uint8_t> iv) generates (Status status, vec<uint8_t> output);
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/**
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* Decrypt the provided input buffer with the cipher algorithm
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* specified by setCipherAlgorithm and the key selected by keyId,
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* and return the decrypted data.
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*
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* @param sessionId the session id the call applies to
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* @param keyId the ID of the key to use for decryption
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* @param input the input data to decrypt
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* @param iv the initialization vector to use for decryption
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* @return status the status of the call. The status must be OK or one of
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* the following errors: ERROR_DRM_SESSION_NOT_OPENED if the session is not
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* opened, BAD_VALUE if any parameters are invalid or ERROR_DRM_INVALID_STATE
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* if the HAL is in a state where the decrypt operation cannot be
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* performed.
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* @return output the decrypted data
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*/
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decrypt(SessionId sessionId, vec<uint8_t> keyId, vec<uint8_t> input,
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vec<uint8_t> iv) generates (Status status, vec<uint8_t> output);
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/**
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* Compute a signature over the provided message using the mac algorithm
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* specified by setMacAlgorithm and the key selected by keyId and return
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* the signature.
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*
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* @param sessionId the session id the call applies to
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* @param keyId the ID of the key to use for decryption
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* @param message the message to compute a signature over
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* @return status the status of the call. The status must be OK or one of
|
|
* the following errors: ERROR_DRM_SESSION_NOT_OPENED if the session is not
|
|
* opened, BAD_VALUE if any parameters are invalid or ERROR_DRM_INVALID_STATE
|
|
* if the HAL is in a state where the sign operation cannot be
|
|
* performed.
|
|
* @return signature the computed signature
|
|
*/
|
|
sign(SessionId sessionId, vec<uint8_t> keyId, vec<uint8_t> message)
|
|
generates (Status status, vec<uint8_t> signature);
|
|
|
|
/**
|
|
* Compute a hash of the provided message using the mac algorithm specified
|
|
* by setMacAlgorithm and the key selected by keyId, and compare with the
|
|
* expected result.
|
|
*
|
|
* @param sessionId the session id the call applies to
|
|
* @param keyId the ID of the key to use for decryption
|
|
* @param message the message to compute a hash of
|
|
* @param signature the signature to verify
|
|
* @return status the status of the call. The status must be OK or one of
|
|
* the following errors: ERROR_DRM_SESSION_NOT_OPENED if the session is not
|
|
* opened, BAD_VALUE if any parameters are invalid or ERROR_DRM_INVALID_STATE
|
|
* if the HAL is in a state where the verify operation cannot be
|
|
* performed.
|
|
* @return match true if the signature is verified positively,
|
|
* false otherwise.
|
|
*/
|
|
verify(SessionId sessionId, vec<uint8_t> keyId, vec<uint8_t> message,
|
|
vec<uint8_t> signature) generates (Status status, bool match);
|
|
|
|
/**
|
|
* Compute an RSA signature on the provided message using the specified
|
|
* algorithm.
|
|
*
|
|
* @param sessionId the session id the call applies to
|
|
* @param algorithm the signing algorithm, such as "RSASSA-PSS-SHA1"
|
|
* or "PKCS1-BlockType1"
|
|
* @param message the message to compute the signature on
|
|
* @param wrappedKey the private key returned during provisioning as
|
|
* returned by provideProvisionResponse.
|
|
* @return status the status of the call. The status must be OK or one of
|
|
* the following errors: ERROR_DRM_SESSION_NOT_OPENED if the session is
|
|
* not opened, BAD_VALUE if any parameters are invalid or
|
|
* ERROR_DRM_INVALID_STATE if the HAL is in a state where the signRSA
|
|
* operation cannot be performed.
|
|
* @return signature the RSA signature computed over the message
|
|
*/
|
|
signRSA(SessionId sessionId, string algorithm, vec<uint8_t> message,
|
|
vec<uint8_t> wrappedkey)
|
|
generates (Status status, vec<uint8_t> signature);
|
|
|
|
/**
|
|
* Plugins call the following methods to deliver events to the
|
|
* java app.
|
|
*/
|
|
|
|
/**
|
|
* Set a listener for a drm session. This allows the drm HAL to
|
|
* make asynchronous calls back to the client of IDrm.
|
|
*
|
|
* @param listener instance of IDrmPluginListener to receive the events
|
|
*/
|
|
setListener(IDrmPluginListener listener);
|
|
|
|
/**
|
|
* Legacy event sending method, it sends events of various types using a
|
|
* single overloaded set of parameters. This form is deprecated.
|
|
*
|
|
* @param eventType the type of the event
|
|
* @param sessionId identifies the session the event originated from
|
|
* @param data event-specific data blob
|
|
*/
|
|
sendEvent(EventType eventType, SessionId sessionId, vec<uint8_t> data);
|
|
|
|
/**
|
|
* Send a license expiration update to the listener. The expiration
|
|
* update indicates how long the current license is valid before it
|
|
* needs to be renewed.
|
|
*
|
|
* @param sessionId identifies the session the event originated from
|
|
* @param expiryTimeInMS the time when the keys need to be renewed.
|
|
* The time is in milliseconds, relative to the Unix epoch. A time of 0
|
|
* indicates that the keys never expire.
|
|
*/
|
|
sendExpirationUpdate(SessionId sessionId, int64_t expiryTimeInMS);
|
|
|
|
/**
|
|
* Send a keys change event to the listener. The keys change event
|
|
* indicates the status of each key in the session. Keys can be
|
|
* indicated as being usable, expired, outputnotallowed or statuspending.
|
|
*
|
|
* @param sessionId identifies the session the event originated from
|
|
* @param keyStatusList indicates the status for each key ID in the
|
|
* session.
|
|
* @param hasNewUsableKey indicates if the event includes at least one
|
|
* key that has become usable.
|
|
*/
|
|
sendKeysChange(SessionId sessionId, vec<KeyStatus> keyStatusList,
|
|
bool hasNewUsableKey);
|
|
};
|