---
title: Encrypting an Input Stream in Zixi Broadcaster
slug: zixi-broadcaster-zec-current-version/encrypting-an-input-stream-in-zixi-broadcaster
docTags: 
createdAt: 2024-12-25T19:45:04.789Z
---

You can encrypt a specific input stream using static key AES scrambling encryption (AES 128, AES 192, AES 256). The stream encryption prevents any further processing, such as analysis, transcoding, etc. For more information, see the [Transcoder](docId\:N_HeHZq5awqzbZmJsgxEH) section.

The encryption works in the following way:

- **If the stream has been encrypted at the source** - The stream will remain encrypted regardless of the output type. Zixi Broadcaster can only encrypt the stream after it has been decrypted. 
- **If the stream is being encrypted by the Zixi Broadcaster** - it will be encrypted only if the output is a Zixi Pull or Zixi Push output. Broadcaster's static-key AES stream encryption uses AES in CTR (Counter) mode—for all three key lengths, in both the encrypt and decrypt directions.
- All other outputs will send out an unencrypted stream, with the exception of SRT  (for these outputs, SRT's own encryption methods is used if a password is set on the output).

### To encrypt an input stream in Zixi Broadcaster:

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In the **Inputs** screen, click **+New Input **(or edit an existing input by clicking the ⚙️ icon and selecting **Edit**)**.**
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Select the relevant input type if this is a new input.
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Fill in the stream parameters.
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At the bottom, select the **Enable Encryption** checkbox.
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In the **Encryption Type** field, select AES 128, AES 192, or AES 256 for fixed encryption.
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In the **Encryption Key** field, enter your own key or click Generate to generate a key by the system. The exact key should be used to decrypt the stream on the other end.

![Set encryption key](https://api.archbee.com/api/optimize/mzxtTQEvCNIdUNgF2kuwJ/irV2YdkxcD7XmLt_TxJIa_image.png)
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Click **OK**.
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