Why WiFi speed is slow

As we all know, router security is the cornerstone of network security, if the router has security problems, it means that our network will also have security problems. So we all make some security settings for the router, but if the security settings are not properly set, the entire network slows down.

We usually use Wpa2-aes and wpa2-tkip to encrypt the router. Today we'll talk about the difference between the two, and why AES will be a big winner.

Introduction to WPA

WPA (or Wi-Fi access Protection)-is due to vulnerabilities in the WEP (Wired equivalent encryption) protocol. This is not a perfect solution, however, but a temporary option that allows users to use existing routers to address security issues in the WEP protocol.

WPA is better than WEP, but there are security issues in itself, and attacks usually do not reveal the TKIP (Temporary Key Integrity Protocol) algorithm (up to 256-bit encryption), but they can be compromised through the auxiliary system WPS protocol or Wi-Fi protection settings.

The Wi-Fi protection setting itself is designed to facilitate device connectivity, but there are a number of security flaws that allow people to gradually discard it and adopt WPA.

But for now, WPA and WEP are retired ~ So let's talk about a new version of WPA2 that replaces WPA.

Why is WPA2 better?

AES encryption (Advanced Encryption Standard) makes Wi-Fi networks faster and more secure. Simply put, Wpa-tkip is only a temporary option, and now they have worked out a better wpa2-aes in these three years to solve a lot of problems.

AES, is a true encryption algorithm, not only for the type of Wi-Fi network. It has become an encryption standard, whether it's government, Rage's truecrypt, or many other software that protects data. Again, this standard is used to protect your home network, but you also need to update your router's hardware.

Comparison of the security of AES VS Tkip

TKIP is essentially a WEP patch that solves the problem of an attacker parsing a router key by obtaining a small amount of router traffic. To solve this problem, tkip a new key every few minutes. The attacker is not provided with sufficient data to decipher the RC4 stream encryption on which the key or algorithm relies.

While Tkip also provided a more complete security upgrade, it was not comprehensive enough to protect your network from hacking attacks. One of the biggest vulnerabilities known as "Chop-Chop attack" is the attack that occurs before the encryption itself is released.

Hackers can use Chop-Chop attack to intercept and analyze the data generated in the network, and eventually decipher the key, clear text to display the data.

And AES is a completely independent encryption algorithm, far superior to any TKIP provided by the algorithm. The algorithm has 128-bit, 192-bit, or 256-bit block cipher.

In simple terms, we need to convert plaintext to ciphertext. If the observer does not have the encryption key, the received ciphertext looks like a random string. For the other end of the transmission device or person with the key, the decrypted data is easy to watch. The router side has the first key and encrypts the data before it is sent. The computer side has a second key to decrypt the transmitted content.

The encryption level (128,192 or 256 bits) determines the amount of "messy data", in which case there is a large number of combinations that the attacker cannot crack. Even the minimum level of 128-bit AES encryption is theoretically unbreakable, because it takes more than 10 billion years for the current computing power to break the encryption algorithm!

The speed pk between AES vs TKIP

Tkip is an outdated method of encryption and, in addition to security issues, slows down the system's operating speed. Most newer routers (any 802.11n version or update) now default to Wpa2-aes encryption, and if you have an older router or choose Wpa-tkip encryption for some reason, the computer will slow down considerably.

If you enable WPA TKIP on any 802.11n router or newer version of the security option, the speed slows down to 54Mbps. This security protocol is designed to ensure that the old router is working properly. The maximum speed of 802.11ac, which supports Wpa2-aes encryption, is 3.46Gbps. So in theory, AES is much faster than TKIP!

Summarize

Aes and TKIP are not even worth comparing. AES is the fastest route, the algorithm is more secure, and even the government chooses to use it, so AES is the best choice for our general public.