To the last part .....
Which is the link
Join US 👇👇 👺👺

U2FsdGVkX1+i7J0AddE+UCefPvnTN80iQXYdCuUSP7h5F+q1ddiHLzF7v+GwLdjQ
oQWR95x6lKaaAqhKgBKpiz5WXgUfSTwdK4CU+Mw1j/o=


So this is the WhatsApp group invite to the next group ..... If you can decode you can join .....

I'll be deleting this one soon
This time I used a password to encrypt this


U2FsdGVkX1+i7J0AddE+UCefPvnTN80iQXYdCuUSP7h5F+q1ddiHLzF7v+GwLdjQ
oQWR95x6lKaaAqhKgBKpiz5WXgUfSTwdK4CU+Mw1j/o=

I'll solve it half way .....

First remember determine what it was encrypted to

U2FsdGVkX1+i7J0AddE+UCefPvnTN80iQXYdCuUSP7h5F+q1ddiHLzF7v+GwLdjQoQWR95x6lKaaAqhKgBKpiz5WXgUfSTwdK4CU+Mw1j/o=


So I'll solve this the way a normal user should approach it
...

First I tried using magic to determine what it was encrypted to no luck


I copied the hash and pasted on google ..... Got a link on stack overflow that mentioned openssl and base64

The fist letters were decoded to secret__

Okay sweet .....

So openssl ?....I had to go to my terminal to recheck myself so to be sure

So I wrote the encoded words to a file I just named " decode"

Then I used the command "file" to check what type of encryption was used on the file I saved earlier (decode)...

Then I used the command "file" to check what type of encryption was used on the file I saved earlier (decode)...

As you can see it says ....
Openssl
Encrypted
Salted with a *password*


So where is this password it mentioned


Well I dropped it earlier to be 4323 ....


In real world you might have to crack

So this is likely encrypted with AES (military encryption)
We have just 2 modes cbc and ecb ....
And it only allows 128bit, 192 bit ,256 bit

Read more about this ....
So there are limited modes to test .... A simple google search on how to decrypt with openssl and password will show you this command

As It was encoded with cbc 256 bit ..... and the password is 4323

I got the url

[ The url to this group is also encoded .... You can decode with cyberchef

You have until tomorrow night to decode the link and join the group ... Thank you

Please Note:

No one should share the invite link after decoding pls ..... I'll remove and revoke the link if that happens

Good evening guys

We will have a class tonight

On vpn, dns, tor and proxies

So VPN .....


Only interrupt when it is verrrry important pls


We've covered IP address , you can go back to the lecture to refresh your memory : https://seehowtv.com/join/28


So you see, your public IP addresses can be used to determine your general location, so IPs from Nigeria and your ISP can be determined by any website you connect to . So take for instance a website owner wants to restrict people from Nigeria from accessing his website , all he had to do is to block all IP addresses originating from nigeria

has *

It's as simple as that , I cna decide to block all IP address of MTN users , just have to determine the ISP with the IP and block it .... That way no one with the IP address from MTN will be able to access my app



Sometimes IP addresses can also be used to grant access


It's used in big companies for security, probably they want just three people to be able to access a server remotely, they will only allow the IP address of those 3 people to connect



Are you following ?

Like people in Nigeria cant use HBO Go app because our ip range isn't American or Canadian

Exactly .... The IP address they allow has been censored ....it's easy to determine a country from IP addresses