# Admin Manager Application

The Admin Manager is a specialized Windows application that allows administrators to manage encryption settings, user permissions, and device locking/unlocking directly from a PC.

### 🔐 Security & Mutual Authentication

The iODD Admin Manager performs Challenge-Response based mutual authentication upon device connection. It exchanges a non-reusable random number (Challenge) for each session and verifies the response calculated using the genuine key securely stored within the iODD hardware to mutually confirm the authenticity of both the device and the application. This process is designed to prevent replay attacks. Fake or modified devices that fail authentication cannot establish management communication, which ultimately helps verify hardware authenticity and minimize the attack surface.

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**Supported Models Only**: ST400 / LK100 / MINI PRO. This application does **not** support: 2531, 2541, IODD MINI, ST300.
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### Download Link

You can download the latest version of the Admin Manager from the official IODD Download Center.

{% hint style="info" %}
**IODD Download Center**\
<https://dir.iodd.kr>
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### Application Layout

The application is divided into several functional zones to facilitate efficient device management.

<figure><img src="https://3026209848-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FhmDmKL86eZmYvioTSXe5%2Fuploads%2FcThitk4H3JhEuS7H2DMB%2Fimage.png?alt=media&#x26;token=84ff383e-22d7-4106-959d-32a378eb4531" alt="Admin Manager Main Layout"><figcaption><p>Overview of the Admin Manager interface.</p></figcaption></figure>

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### 🛡️ Admin Panel Area

This section allows the administrator to control the primary security state of the connected IODD.

<figure><img src="https://3026209848-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FhmDmKL86eZmYvioTSXe5%2Fuploads%2FtwNkP98on24p2bpjZYo4%2Fimage.png?alt=media&#x26;token=ac3386c2-972a-4f46-b624-f70006c5741e" alt="Admin Panel Interface"><figcaption><p>Controls for device lock/unlock and secondary password management.</p></figcaption></figure>

1. **\[Admin Password] Field**: All administrative actions require this password. Without it, changes will not be saved to the IODD hardware.
2. **\[Secondary Password (2nd Password)] Field**: Used for initial encryption setup or when migrating the drive to new hardware.
3. **\[Set] Button**: Commits the entered 2nd password (up to 38 digits) to the machine.
4. **\[Unlock] Button**: Unlocks the connected IODD from the PC.
5. **\[Lock] Button**: Manually engages the password lock on the device.
6. **\[Password Configuration] Tab**: Allows saving current user settings as a file.

**Master Password**: Saving or loading configuration files requires a "Master Password." This is independent of the Admin Password and is used solely for protecting the configuration files.

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### 👥 User Management Area

Administrators can configure up to four individual user profiles with specific access rights.

<figure><img src="https://3026209848-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FhmDmKL86eZmYvioTSXe5%2Fuploads%2FmJWVEyz6aTMk4Ol7WL0R%2Fimage.png?alt=media&#x26;token=dec95d6f-4751-426e-bcc5-f6e81a2e813e" alt="User Management Section"><figcaption><p>Detailed configuration for Users 1 through 4.</p></figcaption></figure>

* **User Selection \[1]**: Check the box for the user (1-4) you wish to manage.
* **Password \[2] & Authority \[3]**: Set the individual password and check the desired permissions.
  * **Read Only**: User cannot write data.
  * **User Change**: User can modify their own password.
  * **User Delete**: User can remove their own credentials.
* **Execution Buttons**:
  * **\[Set Password]**: Applies the settings to the IODD.
  * **\[Do not reconnect]**: If checked, settings apply immediately without needing to physically reconnect the device.
  * **\[Empty]**: Clears all input fields in the user area for a fresh start.

{% hint style="warning" %}
**User Password Structure** User passwords must start with their designated User ID (1-4). The total length can be up to 38 digits (1 digit ID + 37 digit password).
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### 📊 Status & Utility Areas

#### Current Status Area

Provides a real-time overview of the encryption lock status and active user permissions.

<figure><img src="https://3026209848-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FhmDmKL86eZmYvioTSXe5%2Fuploads%2Fh2TIEBxFzsovM7sv4ZUf%2Fimage.png?alt=media&#x26;token=afa72796-8278-4079-884c-c94038cfc229" alt="Current Status Display"><figcaption><p>Check the live status of the connected hardware.</p></figcaption></figure>

#### Log Area

Displays a chronological log of all actions and progress. Use the **\[Clear]** button to reset the view.

<figure><img src="https://3026209848-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FhmDmKL86eZmYvioTSXe5%2Fuploads%2Fln1SbruEa26BvU7BOkF8%2Fimage.png?alt=media&#x26;token=77bf8c5a-962a-4bd4-bd04-a6b1343e34a8" alt="Application Log"><figcaption><p>Monitor the progress of tasks and command results.</p></figcaption></figure>

#### Main Menu & Settings

Located under **\[Settings] - \[Preferences]**, you can close the program or change the interface language.

* **Supported Languages**: Korean, English, German, French, Chinese, Japanese, Russian.

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{% hint style="info" %}
**Feature Availability** All encryption functions can be performed directly on the IODD device hardware. The Admin Manager application is required only for managing **Password Configuration Files** (.cfg) or for more convenient batch management via PC.
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### Related Documentation

* [Administrative Encryption Settings](https://help.iodd.kr/aes256-encryption-mini-pro-st-lk/admin)