Hi, everyone.
In this lecture, we are going to see what is WBB, which is the white equivalent priority.
So as we all know that it is the oldest one and it can be easily broken.
So WSP uses algorithm called Oddisee for encryption, which as you can see here.
OK, so in this algorithm, each packet is encrypted at the router or access point and then sent out
into the air.
So what the client receives this packet, the client will be able to transform its back to its original
form because it has the key.
So in other words, we can see that the router includes the packets and send it and the client receives
the packet and decrypted.
So the same happens if the client sent something to the router.
So it will first encrypt the packet using a key and send it to the router and the router will be able
to decrypt it because it has the key.
So in this process, if a hacker captures the packet in the middle, then they will get the packet,
but they would not be able to see the content of the packet because they do not have the key.
So each packet that is sent into the air has a unique stream.
So the unique stream is generated using 24 bit initialization vector, which, as you can see, is 24
Bedivere BlueSky.
OK, so an initialization vector is a random number that is sent into each packet in a plain text form,
which is not encrypted.
So if someone captures the packet, they will not be able to read the packet content because it is encrypted.
But they can read the.
What did this ivy in the plane text bomb, because it is not encrypted.
OK, is this clear which as you can see here, we are having this key, which is I.V. and it is going
in plain text.
OK, so the weakness with the I.V. is that it is sent in a plain text and it is very solid, which is
only 24 bed.
So in a busy network, there will be a large number of packets sent in the air.
So at this time, 24, but no, it's not big enough.
So the I.V. will start repeating on a busy network so the repeated IVs can be used to determine the
key stream.
So this makes an WSP vulnerable to statistical attack so determined simply in order to determine the
key stream, we can use a tool called aircraft.
So this tool is used to determine the key stream.
So once we have enough repeated Ivey's, then it will also be able to crack WSP and give us the key
to the network, which we are going to see very soon in this section.
So this is all about how WSP folks and what it is.