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More details on allowed algos (#1032)

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* More details on allowed algos

* Update did-ddo.md

* Update did-ddo.md

* Update did-ddo.md

* Update did-ddo.md

* Update did-ddo.md
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Alex Coseru 2022-06-23 20:31:00 +03:00 committed by GitHub
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content/concepts/did-ddo.md
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@ -142,7 +142,7 @@ The `container` object has the following attributes defining the Docker image fo
| **`entrypoint`** | `string` | **✓** | The command to execute, or script to run inside the Docker image. |
| **`image`** | `string` | **✓** | Name of the Docker image. |
| **`tag`** | `string` | **✓** | Tag of the Docker image. |
| **`checksum`** | `string` | **✓** | Checksum of the Docker image. |
| **`checksum`** | `string` | **✓** | Digest of the Docker image. (ie: sha256:xxxxx) |
```json
{
@ -161,7 +161,7 @@ The `container` object has the following attributes defining the Docker image fo
"entrypoint": "node $ALGO",
"image": "ubuntu",
"tag": "latest",
"checksum": "44e10daa6637893f4276bb8d7301eb35306ece50f61ca34dcab550"
"checksum": "sha256:44e10daa6637893f4276bb8d7301eb35306ece50f61ca34dcab550"
},
"consumerParameters": {}
}
@ -368,7 +368,7 @@ An asset with a service of `type` `compute` has the following additional attribu
<tr>
<td>Array of <code>string</code></td>
<td><b>✓</b></td>
<td>If empty, then any published algorithm is allowed. Otherwise, only published algorithms by some publishers are allowed.</td>
<td>If not defined, then any published algorithm is allowed. If empty array, then no algorithm is allowed. If not empty any algo published by the defined publishers is allowed.</td>
</tr>
</tbody>
</table>
@ -386,7 +386,7 @@ An asset with a service of `type` `compute` has the following additional attribu
<tr>
<td>Array of <code>publisherTrustedAlgorithms</code></td>
<td><b>✓</b></td>
<td>If empty, then any published algorithm is allowed. (see below).</td>
<td>If not defined, then any published algorithm is allowed. If empty array, then no algorithm is allowed. Otherwise only the algorithms defined in the array are allowed. (see below).</td>
</tr>
</tbody>
</table>
@ -400,19 +400,16 @@ The `publisherTrustedAlgorithms ` is an array of objects with the following stru
| Attribute | Type | Required | Description |
| ------------------------------ | -------- | -------- | ------------------------------------------------------------------------- |
| **`did`** | `string` | **✓** | The DID of the algorithm which is trusted by the publisher. |
| **`filesChecksum`** | `string` | **✓** | Hash of algorithm's `files` section (as `string`). |
| **`containerSectionChecksum`** | `string` | **✓** | Hash of algorithm's `metadata.algorithm.container` section (as `string`). |
| **`filesChecksum`** | `string` | **✓** | Hash of algorithm's files (as `string`). |
| **`containerSectionChecksum`** | `string` | **✓** | Hash of algorithm's image details (as `string`). |
To produce `filesChecksum`:
```js
sha256(JSON.Stringify(algorithm_ddo.services[0].files))
```
To produce `filesChecksum`, call the Provider FileInfoEndpoint with parameter withChecksum = True.
If algorithm has multiple files, `filesChecksum` is a concatenated string of all files checksums (ie: checksumFile1+checksumFile2 , etc)
To produce `containerSectionChecksum`:
```js
sha256(JSON.Stringify(algorithm_ddo.metadata.algorithm.container))
sha256(algorithm_ddo.metadata.algorithm.container.entrypoint + algorithm_ddo.metadata.algorithm.container.checksum)
```
Example: