SHARP PN-ME652 Smart LED TV Instruction Manual
- June 15, 2024
- Sharp
Table of Contents
SHARP PN-ME652 Smart LED TV
Specifications
- Model Numbers: PN-ME652, PN-ME552, PN-ME502, PN-ME432
- Monitor Type: LCD
- Control Method: Secure Communication via LAN
- Supported Public Key Methods: RSA (2048), DSA, ECDSA-256, ECDSA-384, ECDSA-521, ED25519
Product Usage Instructions
Creating Private and Public Keys:
- Use OpenSSL, OpenSSH, or a terminal software to create private and public keys.
- For creating an RSA key using OpenSSH on Windows:
- Open a command prompt from the Start button.
- Enter the command:
ssh-keygen.exe -t rsa -m RFC4716 -b 2048 -N user1 -C rsa_2048_user1 -f id_rsa - Private key (id_rsa) and public key (id_rsa.pub) will be created. Keep the private key secure.
Registering a Public Key:
- Copy the public key file (id_rsa.pub) to a USB flash drive.
- Connect the USB flash drive to the USB1 terminal of the monitor.
- In the Setting menu of the monitor, go to Administrator Settings > Network > Monitor Control and set Use Secure Protocol for Authentication to ON.
- Select Upload for Public Key File and choose the public key file on the USB flash drive to register it.
Command Control via Secure Communication Protocol:
- Connect the computer to the monitor.
- Start an SSH client, specify the IP address and data port number (Default setting: 10022) to connect the computer to the monitor.
- Set the user name (Default setting: Admin) and use the private key for authentication. Enter the passphrase for the private key when prompted.
FAQs
What are the supported public key methods for this monitor?
The supported public key methods are RSA (2048), DSA, ECDSA-256, ECDSA-384, ECDSA-521, and ED25519.
How do I register a public key on the monitor?
Copy the public key file (id_rsa.pub) to a USB flash drive, connect it to the monitor, go to Administrator Settings > Network > Monitor Control in the Setting menu, set Use Secure Protocol for Authentication to ON, select Upload for Public Key File, and choose the public key file on the USB flash drive to register it.
How do I control the monitor using secure communication?
You must connect the monitor to a network, use public key cryptography for user authentication and encrypted communication, and register the public key with the monitor. Commands to control the device can then be sent using N-format or S-format commands.
What public key methods are supported by the monitor?
The monitor supports RSA (2048/4096 bit), DSA, ECDSA (256/384/521), and ED25519.
How do I create and register a public key for the monitor?
You can use OpenSSH to create a public key on a Windows machine. After creation, copy the public key file to a USB flash drive, connect it to the monitor, and register the key via the monitor's Setting menu.
What should I do if the secure communication connection is not being used?
If no communication occurs after the set Auto Logout Time, the connection will automatically disconnect to ensure security.
PN-ME652 PN-ME552 PN-ME502 PN-ME432
LCD MONITOR OPERATION MANUAL for Secure Command
PN-ME652-ME552-ME502-ME432 EN(1)
1
Controlling the Monitor via Secure Communication (LAN)
You can control this monitor with secure communication from a computer via
network.
TIPS
· This monitor must be connected to a network. · Set “Ethernet” to ON in
“Administrator Settings” >
“Network” > “Ethernet” on the Setting menu and configure network settings in
“Ethernet”. · Set “Monitor Control via Network” to ON in “Administrator
Settings” > “Network” > “Monitor Control” · Set “Control Terminal” to “LAN”
and set the other settings for the commands are set in “Administrator
Settings” > “Setup” > “Advanced”
Control via secure communication
User authentication and encrypted communication can be performed using public
key cryptography. To perform secure communication, a private key and public
key must be created in advance, and the public key must be registered with the
device. Client software that supports secure communication is also required.
N-format commands and Sformat commands are used to control this device. Please
also read the instructions for each format.
Creating Private and Public Keys
Use OpenSSL, OpenSSH, or a terminal software to create private and public
keys. The following public key methods are supported in this monitor.
RSA(20484096bit)
DSA ECDSA-256 ECDSA-384 ECDSA-521 ED25519 OpenSSH is available as standard on
Windows 10 (version 1803 or later) and Windows 11. This section describes the
procedure for creating an RSA key using OpenSSH (sshkeygen) on Windows.
(1) Open a command prompt from the Start button.
(2) Send the following command to create the key with the
following setting:
key type:
RSA
length:
2048bit
passphrase:
user1
public key comment: rsa_2048_user1
file name:
id_rsa
C:ssh-key>ssh-keygen.exe -t rsa -m
RFC4716 -b 2048 -N “user1” -C
“rsa_2048_user1” -f id_rsa
Generating public/private rsa key pair.
Your identification has been saved in
id_rsa.
Your public key has been saved in
id_rsa.pub.
The key fingerprint is:
SHA256:NB7PiZnl+S1Osig5P0lne+h7AarPOP0z9B
UpHl2OSzU rsa_2048_user1
The key’s randomart image is:
+—[RSA 2048]—-+
|
|
|
Eo|
| xxxxxxxxxxxxxx |
|
.=+=. |
+—-[SHA256]—–+
(3) “id_rsa” – private key and “id_rsa.pub” – public key will be
created. Keep the private key in a safe place. For details
of the commands, please refer to the description of each tool.
Registering a public key
Register the public key on the Setting menu of the monitor.
(1) Copy the public key file (id_rsa.pub in the example
above) to the USB flash drive.
(2) Connect the USB flash drive to the USB1 terminal of the
monitor.
(3) Set “Use Secure Protocol for Authentication ” to ON in
“Administrator Settings” > “Network” > “Monitor Control” on the Setting menu.
(4) Select “Upload” for “Public Key File” and the file
selection screen will be displayed.
(5) Select the public key file on the USB flash drive to
register the public key. Registered public key files can be downloaded and
deleted.
2
Command control via secure communication protocol.
This device can be controlled via secure communication using SSH
authentication and encryption functions. Implement “Creating Private and
Public Keys” and “Creating Private and Public Keys” procedure before.
(1) Connect the computer to the monitor.
1. Start SSH client, specify the IP address and data port number (Default
setting: 10022) and connect the computer to the monitor.
2. Set the user name (Default setting: Admin) and the private key for the
registered public key, and enter the passphrase for the private key.
3. If the authentication is successful, the connection is established.
(2) Send commands to control the monitor.
1. Use N-format or S-format commands to control the monitor. For details on
commands, refer to the manual for each format.
TIPS
· If there is no command communication after the “Auto Logout Time” (Default
value: 5 minutes), the connection will be automatically disconnected.
· Up to one connection can be used at the same time. · Normal and secure
connections cannot be used at the
same time.
3
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