# SPEKE API v1 This is the REST API for Secure Packager and Encoder Key Exchange (SPEKE) v1. Use this specification to provide DRM copyright protection for customers who use encryption. To be SPEKE-compliant, your DRM key provider must expose the REST API described in this specification. The encryptor makes API calls to your key provider. **Note** The code examples in this specification are for illustration purposes only. You can’t run the examples because they aren’t part of a complete SPEKE implementation. SPEKE uses the DASH Industry Forum Content Protection Information Exchange Format (DASH-IF-CPIX) data structure definition for key exchange, with some restrictions. DASH-IF-CPIX defines a schema to provide an extensible, multi-DRM exchange from the DRM platform to the encryptor. This enables content encryption for all adaptive bitrate packaging formats at the time of content compression and packaging. Adaptive bitrate packaging formats include HLS, DASH, and MSS. For detailed information about the exchange format, see the DASH Industry Forum CPIX specification at https://dashif.org/docs/DASH-IF-CPIX-v2-0.pdf. **Topics** + [ # SPEKE API v1 - Customizations and constraints to the DASH-IF specification ](speke-constraints.md) + [ # SPEKE API v1 - Standard payload components ](standard-payload-components.md) + [ # SPEKE API v1 - Live workflow method call examples ](live-workflow-methods.md) + [ # SPEKE API v1 - VOD workflow method call examples ](vod-workflow-methods.md) + [ # SPEKE API v1 - Content key encryption ](content-key-encryption.md) + [ # SPEKE API v1 - Heartbeat ](heartbeat.md) + [ # SPEKE API v1 - Overriding the key identifier ](kid-override.md) # SPEKE API v1 - Customizations and constraints to the DASH-IF specification The DASH-IF CPIX specification, https://dashif.org/docs/DASH-IF-CPIX-v2-0.pdf, supports a number of use cases and topologies. The SPEKE API specification adheres to the CPIX specification with the following customizations and constraints: + SPEKE follows the Encryptor Consumer workflow. + For encrypted content keys, SPEKE applies the following restrictions: + SPEKE doesn’t support digital signature verification (XMLDSIG) for request or response payloads. + SPEKE requires 2048 RSA-based certificates. + For rotating key workflows, SPEKE requires the `ContentKeyUsageRule` filter, `KeyPeriodFilter`. SPEKE ignores all other `ContentKeyUsageRule` settings. + SPEKE omits the `UpdateHistoryItemList` functionality. If the list is present in the response, SPEKE ignores it. + SPEKE supports key rotation. SPEKE uses only the `ContentKeyPeriod@index to track the key period. + To support MSS PlayReady, SPEKE uses a custom parameter under the `DRMSystem` tag, `SPEKE:ProtectionHeader`. + For HLS packaging, if the `URIExtXKey` is present in the response, then it must contain the full data to add in the URI parameter of the `EXT-X-KEY` tag of an HLS playlist, with no further signaling requirement. + For HLS playlist, under the `DRMSystem` tag, SPEKE provides the optional custom parameters `speke:KeyFormat` and `speke:KeyFormatVersions`, for the values of the `KEYFORMAT` and `KEYFORMATVERSIONS` parameters of the `EXT-X-KEY` tag. The HLS initialization vector (IV) always follows segment number unless explicitly specified by the operator. + When requesting keys, the encryptor might use the optional `@explicitIV` attribute on the `ContentKey` element. The key provider can respond with an IV using `@explicitIV`, even if the attribute is not included in the request. + The encryptor creates the key identifier (`KID`), which stays the same for any given content ID and key period. The key provider includes the `KID` in its response to the request document. + The key provider might include a value for the `Speke-User-Agent` response header, to identify itself for debugging purposes. + SPEKE does not currently support multiple tracks or keys per content. The SPEKE-compliant encryptor acts as a client and sends `POST` operations to the key provider endpoint. The encryptor might send a periodic `heartbeat` request to ensure that the connection between the encryptor and the key provider endpoint is healthy. # SPEKE API v1 - Standard payload components In any SPEKE request, the encryptor can request responses for one or more DRM systems. The encryptor specifies the DRM systems in `` of the request payload. Each system specification includes the key and indicates the type of response to return. The following example shows a DRM system list with a single DRM system specification: ![\[RequestIntroSimple\]](http://docs.aws.amazon.com/speke/latest/documentation/images/RequestIntroSimple.png) The following table lists the main components of each ``. | Identifier | Description | | --- | --- | | `systemId` or `schemeId` | Unique identifier for the DRM system type, as registered with the DASH IF organization. For a list, see [DASH-IF System IDs](https://dashif.org/identifiers/content_protection/). | | `kid` | The key ID. This is not the actual key, but an identifier that points to the key in a hash table. | | `` | Requests a standard unencrypted key. The key response type must be either this or the `PSSH` response. | | `` | Requests a Protection System Specific Header (PSSH). This type of header contains a reference to the `kid`, the `systemID`, plus custom data for the DRM vendor, as part of Common Encryption (CENC). The key response type must be either this or the `UriExtXKey` response. | \$1Example Requests for Standard Key and for PSSH \$1 The following example shows part of a sample request from the encryptor to the DRM key provider, with the main components highlighted. The first request is for a standard key, while the second request is for a PSSH response: ![\[RequestIntro1\]](http://docs.aws.amazon.com/speke/latest/documentation/images/RequestIntro1.png) \$1Example Responses for Standard Key and for PSSH \$1 The following example shows the corresponding response from the DRM key provider to the encryptor: ![\[ResponseIntro1\]](http://docs.aws.amazon.com/speke/latest/documentation/images/ResponseIntro1.png) # SPEKE API v1 - Live workflow method call examples *Request Syntax Example* The following URL is an example and does not indicate a fixed format: ``` POST https://speke-compatible-server/speke/v1.0/copyProtection ``` *Request Body* A CPIX element. *Request Headers* | Name | Type | Occurs | Description | | --- | --- | --- | --- | | `AWS Authorization` | String | 1..1 | See [AWS Sigv4](https://docs.aws.amazon.com/general/latest/gr/sigv4_signing.html) | | `X-Amz-Security-Token` | String | 1..1 | See [AWS Sigv4](https://docs.aws.amazon.com/general/latest/gr/sigv4_signing.html) | | `X-Amz-Date` | String | 1..1 | See [AWS Sigv4](https://docs.aws.amazon.com/general/latest/gr/sigv4_signing.html) | | `Content-Type` | String | 1..1 | application/xml | *Response Headers* | Name | Type | Occurs | Description | | --- | --- | --- | --- | | `Speke-User-Agent` | String | 1..1 | String that identifies the key provider | | `Content-Type` | String | 1..1 | application/xml | *Request Response* | HTTP CODE | Payload Name | Occurs | Description | | --- | --- | --- | --- | | `200 (Success)` | CPIX | 1..1 | DASH-CPIX payload response | | `4XX (Client error)` | Client error message | 1..1 | Description of the client error | | `5XX (Server error)` | Server error message | 1..1 | Description of the server error | **Note** The examples in this section do not include content key encryption. For information about how to add content key encryption, see [Content key encryption](content-key-encryption.md). *Live Example Request Payload with Keys in the Clear* The following example shows a typical live request payload from the encryptor to the DRM key provider: ``` ``` *Live Example Response Payload with Keys in the Clear* The following example shows a typical response payload from the DRM key provider: ``` 5dGAgwGuUYu4dHeHtNlxJw== aHR0cHM6Ly83azR5dHV4cTVkLmV4ZWN1dGUtYXBpLnVzLXdlc3QtMi5hbWF6b25hd3MuY29tL0VrZVN0YWdlL2NsaWVudC9hYmMxMjMvOThlZTU1OTYtY2QzZS1hMjBkLTE2M2EtZTM4MjQyMGM2ZWZm aWRlbnRpdHk= MQ== aHR0cHM6Ly83azR5dHV4cTVkLmV4ZWN1dGUtYXBpLnVzLXdlc3QtMi5hbWF6b25hd3MuY29tL0VrZVN0YWdlL2NsaWVudC9hYmMxMjMvOThlZTU1OTYtY2QzZS1hMjBkLTE2M2EtZTM4MjQyMGM2ZWZm Y29tLmFwcGxlLnN0cmVhbWluZ2tleWRlbGl2ZXJ5 MQ== AAAAanBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAAEoIARIQeSIcblaNbb7Dji6sAtKZzRoNd2lkZXZpbmVfdGVzdCIfa2V5LWlkOmVTSWNibGFOYmI3RGppNnNBdEtaelE9PSoCU0QyAA== 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 AAADMHBzc2gAAAAAmgTweZhAQoarkuZb4IhflQAAAxAQAwAAAQABAAYDPABXAFIATQBIAEUAQQBEAEUAUgAgAHgAbQBsAG4AcwA9ACIAaAB0AHQAcAA6AC8ALwBzAGMAaABlAG0AYQBzAC4AbQBpAGMAcgBvAHMAbwBmAHQALgBjAG8AbQAvAEQAUgBNAC8AMgAwADAANwAvADAAMwAvAFAAbABhAHkAUgBlAGEAZAB5AEgAZQBhAGQAZQByACIAIAB2AGUAcgBzAGkAbwBuAD0AIgA0AC4AMAAuADAALgAwACIAPgA8AEQAQQBUAEEAPgA8AFAAUgBPAFQARQBDAFQASQBOAEYATwA+ADwASwBFAFkATABFAE4APgAxADYAPAAvAEsARQBZAEwARQBOAD4APABBAEwARwBJAEQAPgBBAEUAUwBDAFQAUgA8AC8AQQBMAEcASQBEAD4APAAvAFAAUgBPAFQARQBDAFQASQBOAEYATwA+ADwASwBJAEQAPgBiAGgAdwBpAGUAWQAxAFcAdgBtADMARABqAGkANgBzAEEAdABLAFoAegBRAD0APQA8AC8ASwBJAEQAPgA8AEMASABFAEMASwBTAFUATQA+AGEAVABtAFAASgBWAEMAVgBaADYAcwA9ADwALwBDAEgARQBDAEsAUwBVAE0APgA8AEwAQQBfAFUAUgBMAD4AaAB0AHQAcABzADoALwAvAHAAcgBsAHMALgBhAHQAdgAtAHAAcwAuAGEAbQBhAHoAbwBuAC4AYwBvAG0ALwBjAGQAcAA8AC8ATABBAF8AVQBSAEwAPgA8AEMAVQBTAFQATwBNAEEAVABUAFIASQBCAFUAVABFAFMAPgA8AEkASQBTAF8ARABSAE0AXwBWAEUAUgBTAEkATwBOAD4ANwAuADEALgAxADQAMwA5AC4AMAA8AC8ASQBJAFMAXwBEAFIATQBfAFYARQBSAFMASQBPAE4APgA8AC8AQwBVAFMAVABPAE0AQQBUAFQAUgBJAEIAVQBUAEUAUwA+ADwALwBEAEEAVABBAD4APAAvAFcAUgBNAEgARQBBAEQARQBSAD4A ``` # SPEKE API v1 - VOD workflow method call examples *Request Syntax Example* The following URL is an example and does not indicate a fixed format. ``` POST https://speke-compatible-server/speke/v1.0/copyProtection ``` *Request Body* A CPIX element. *Response Headers* | Name | Type | Occurs | Description | | --- | --- | --- | --- | | `Speke-User-Agent` | String | 1..1 | String that identifies the key provider | | `Content-Type` | String | 1..1 | application/xml | *Request Response* | HTTP CODE | Payload Name | Occurs | Description | | --- | --- | --- | --- | | `200 (Success)` | CPIX | 1..1 | DASH-CPIX payload response | | `4XX (Client error)` | Client error message | 1..1 | Description of the client error | | `5XX (Server error)` | Server error message | 1..1 | Description of the server error | **Note** The examples in this section do not include content key encryption. For information on how to add content key encryption, see [Content key encryption](content-key-encryption.md). *VOD Example Request Payload with Keys in the Clear* The following example shows a basic VOD request payload from the encryptor to the DRM key provider: ``` ``` *VOD Example Response Payload with Keys in the Clear* The following example shows a basic VOD response payload from the DRM key provider: ``` 5dGAgwGuUYu4dHeHtNlxJw== aHR0cHM6Ly83azR5dHV4cTVkLmV4ZWN1dGUtYXBpLnVzLXdlc3QtMi5hbWF6b25hd3MuY29tL0VrZVN0YWdlL2NsaWVudC9hYmMxMjMvOThlZTU1OTYtY2QzZS1hMjBkLTE2M2EtZTM4MjQyMGM2ZWZm aWRlbnRpdHk= MQ== aHR0cHM6Ly83azR5dHV4cTVkLmV4ZWN1dGUtYXBpLnVzLXdlc3QtMi5hbWF6b25hd3MuY29tL0VrZVN0YWdlL2NsaWVudC9hYmMxMjMvOThlZTU1OTYtY2QzZS1hMjBkLTE2M2EtZTM4MjQyMGM2ZWZm Y29tLmFwcGxlLnN0cmVhbWluZ2tleWRlbGl2ZXJ5 MQ== AAAAanBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAAEoIARIQeSIcblaNbb7Dji6sAtKZzRoNd2lkZXZpbmVfdGVzdCIfa2V5LWlkOmVTSWNibGFOYmI3RGppNnNBdEtaelE9PSoCU0QyAA== 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 ``` # SPEKE API v1 - Content key encryption You can optionally add content key encryption to your SPEKE implementation. Content key encryption guarantees full end-to-end protection by encrypting the content keys for transit, in addition to encrypting the content itself. If you don’t implement this for your key provider, you rely on the transport layer encryption plus strong authentication for security. To use content key encryption for encryptors running in AWS Cloud, customers import certificates into the AWS Certificate Manager and then use the resulting certificate ARNs for their encryption activities. The encryptor uses the certificate ARNs and the ACM service to provide encrypted content keys to the DRM key provider. **Restrictions** SPEKE supports content key encryption as specified in the DASH-IF CPIX specification with the following restrictions: + SPEKE doesn’t support digital signature verification (XMLDSIG) for request or response payloads. + SPEKE requires 2048 RSA-based certificates. These restrictions are also listed in [Customizations and constraints to the DASH-IF specification](speke-constraints.md). **Implement content key encryption** To provide content key encryption, include the following in your DRM key provider implementations: + Handle the element `` in the request and response payloads. + Provide encrypted values in the `` of the response payloads. For more information about these elements, see the [DASH-IF CPIX 2.0 specification](https://dashif.org/docs/DASH-IF-CPIX-v2-0.pdf). *Example Content Key Encryption Element ` ` in the Request Payload* The following example highlights the added `` element in bold: ``` ... ``` *Example Content Key Encryption Element ` ` in the Response Payload* The following example highlights the added `` element in bold: ``` qnei/5TsfUwDu+8bhsZrLjDRDngvmnUZD2eva7SfXWw= DGqdpHUfFKxdsO9+EWrPjtdTCVfjPLwwtzEcFC/j0xY= ... ``` *Example Content Key Encryption Element ` ` in the Response Payload* The following example shows encrypted content key handling in the `` element of the response payload. This uses the `` element: ``` NJYebfvJ2TdMm3k6v+rLNVYb0NoTJoTLBBdbpe8nmilEfp82SKa7MkqTn2lmQBPB t9lW4WCebfS1GP+dh0IicMs+2+jnrAmfDa4WU6VGHc4= ``` By comparison, the following example shows a similar response payload with the content key delivered unencrypted, as a clear key. This uses the `` element: ``` 5dGAgwGuUYu4dHeHtNlxJw== ``` # SPEKE API v1 - Heartbeat *Request Syntax Example* The following URL is an example and does not indicate a fixed format: ``` GET https://speke-compatible-server/speke/v1.0/heartbeat ``` *Request Response* | HTTP CODE | Payload Name | Occurs | Description | | --- | --- | --- | --- | | `200 (Success)` | statusMessage | 1..1 | Message that describes the status | # SPEKE API v1 - Overriding the key identifier The encryptor creates a new key identifier (KID) each time that it rotates keys. It passes the KID to the DRM key provider in its requests. Almost always, the key provider responds using the same KID, but it can provide a different value for the KID in the response. The following is an example request with the KID `11111111-1111-1111-1111-111111111111`: ``` ``` The following response overrides the KID to `22222222-2222-2222-2222-222222222222`: ``` p3dWaHARtL97MpT7TE916w== AAAAanBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAAEoIARIQeSIcblaNbb7Dji6sAtKZzRoNd2lkZXZpbmVfdGVzdCIfa2V5LWlkOmVTSWNibGFOYmI3RGppNnNBdEtaelE9PSoCU0QyAA== ```