Have you ever used a technology called Wifi? Surely many of you have used it, even just to read this article you are taking advantage of the wifi signal. However, did you know that if there is a WiFi Security Differences and a wifi signal, you can not only connect to the internet on the device you are using, but it turns out that there is a security system.
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The wifi security system has 3 WiFi Security Differences, namely; WEP, WPA-PSK, and also WPA2. What are the between the three WiFi Security Differences?
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The term WPA2-PSK refers to Wi-Fi Protected Access 2, Pre-Shared-Key or WPA2-Personal, which is used to protect network access and data transmission using AES (Advanced Encryption Standard) or TKIP (Temporal Key Integrity Protocol) encryption methods. .
It is designed for home and small office users to protect their network without a corporate authentication server. Users can encrypt a network with WPA2-PSK by providing a simple constructed passphrase between eight and 63 characters long.
How WPA2-PSK Works
So, this WPA-PSK way of working encrypts data by using routers with eight to 63 character long passphrases. The WPA2-PSK TKIP encryption method also requires a network SSID along with a passphrase to generate a unique encryption key for each wireless client.
When using WPA2-PSK (AES), the user creates a password to connect with the router, and the user can connect to the WLAN when the router identifies the user by matching the password.
WPA2-PSK encryption can secure data transmitted between a router and network devices over a wireless connection.
The difference between WPA, WEP and WPA2-PSK
Selain WPA2-PSK, sistem keamanan jaringan wifi tadi kita sudah menjelaskan diawal ada 3, yaitu WPA, WEP, dan juga WPA2-PSK. Apa saja perbedaannya?
The first is WPA (WiFi Protected Access). This is a security standard for computing devices equipped with a wireless internet connection. WPA was developed by the Wi-Fi Alliance to provide more sophisticated data encryption and better user authentication than Wired Equivalent Privacy (WEP), the original Wi-Fi security standard.
The purpose of WEP is to add security to a wireless network by encrypting data. If the wireless data is intercepted, it will not be recognized by the interceptor because it has been encrypted. However, an authorized system on the network will be able to recognize and decrypt data. This is because the devices on the network use the same encryption algorithm.
WEP encrypts traffic using a 64- or 128-bit key in hexadecimal. This is a static key, meaning all traffic, regardless of device, is encrypted using a single key. WEP keys allow computers on a network to exchange encoded messages while hiding message content from intruders. This key is used to connect to a network that supports wireless security.
WPA2 is based on the strong security network mechanism (RSN) and operates in two modes:
- Private mode or Pre-shared Key (WPA2-PSK) – which relies on a shared passcode for access and is typically used in a home environment.
- Enterprise mode (WPA2-EAP) – as the name suggests, this is more suitable for organizational or business use.
Both modes use CCMP which stands for Counter Mode Cipher Block Chaining Message Authentication Code Protocol. The CCMP protocol is based on the Advanced Encryption Standard algorithm, which provides message authenticity and integrity verification.
Can Cracking WPA2-PSK WiFi Networks?
If asked whether this WPA2-PSK wifi network can be hacked or not, of course the answer is yes because there is no secure system in this world. There was a case where a wifi network that already used WPA2-PSK security was compromised using the KRACK (key reinstallation attacks) method. This method can provide illegal access to almost any device that is sent over a wifi network that uses the WPA2 protocol.
In the KRACK concept, hackers don’t need to know the password to enter the wifi network. Hackers work by intercepting data traffic on the network and getting all the information needed to break into the network.
Tips on securing a WPA2-PSK WiFi network
If you know that even the most up-to-date and very secure wifi security system can be broken into, the question is are there any very effective tips for securing this WPA2-PSK wifi network?
The method is quite easy, including:
Change Your WiFi Default Name
The easiest thing you can do to secure your home internet connection is to change the default name. This name is also known as SSID (Service Set Identifier).
When changing your SSID and wifi password, use a longer phrase that is unique to that device. Do not use obvious or personal information, such as your name or date of birth, during this process.
Use a Unique and Strong WiFi Password
Strong passwords can also be a great way to secure your WPA2-PSK wifi network. Perhaps the best suggestion is to use a combination of capital letters, numbers, and long word characters. And remember, don’t use obvious information like your name and date of birth.
Turn off Searching for Your WiFi Network Name
This may seem obvious, but avoid giving people you don’t know access to your home network. The more people who have your wireless network credentials, the higher the risk of your data falling into the wrong hands.
Make sure to turn off searching for your wifi network name, and only a few devices that you know can find your wifi network.
Update Router Firmware
Your router’s firmware is a very important piece of the secure network connection puzzle. Most wireless routers don’t update their software automatically, so you’ll have to do this manually.
To update your router’s firmware, visit the manufacturer’s website and download the firmware update file. Then, install it directly onto your wireless router. Each router manufacturer has a slightly different process, so look for instructions on how to do this on their website.
Use a VPN
A VPN adds a layer of privacy protection to your online activities by directing your traffic through an encrypted tunnel between you and anyone trying to spy on you. It’s technology that makes sense when you’re out and about, using wifi networks you’ll never see again, but a VPN can also protect your privacy at home. Because most of us spend more time at home than outdoor activities.