> For the complete documentation index, see [llms.txt](https://dev.guardian.hedera.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dev.guardian.hedera.com/guardian/complex-iterative-review-and-approval-workflows/apis-related/returns-the-list-of-private-keys-for-the-target-document.md).

# Returns the list of private keys for the target document

**`GET /api/v1/policy-comments/{policyId}/{documentId}/keys`**

Returns the list of private keys for the target document, used to decrypt discussion content.

**Authentication:** Bearer token required (`Authorization: Bearer <token>`)

**Permission:** `Permissions.POLICIES_POLICY_AUDIT`

***

## Request

### Path Parameters

| Parameter    | Type   | Required | Description         |
| ------------ | ------ | -------- | ------------------- |
| `policyId`   | string | Yes      | Policy identifier   |
| `documentId` | string | Yes      | Document identifier |

### Query Parameters

| Parameter      | Type   | Required | Default | Description                                      |
| -------------- | ------ | -------- | ------- | ------------------------------------------------ |
| `discussionId` | string | No       | —       | Filter keys for a specific discussion identifier |

***

## Response

### Success Response

**Status:** `200 OK`

Returns the private key material as a binary stream.

```
Content-Type: application/octet-stream

<binary key content>
```

### Error Responses

| Status                      | Description                          |
| --------------------------- | ------------------------------------ |
| `401 Unauthorized`          | Missing or invalid token             |
| `403 Forbidden`             | Insufficient permissions             |
| `404 Not Found`             | Key not found for the given document |
| `500 Internal Server Error` | Unexpected server failure            |