Hacking And Cryptocurrency For Beginners
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Introduction To Encryption
Before we learn about Encryption try
reading this —> hsrdzrx
Of course you can read that but do you
think it has meaning? Its meaningless
right?
You will get your answer soon.
So me and my friend wanted to develop
a secret language (something like code
words) to talk secretly and I came up
with an idea. I wrote hsrdzrx on a paper
and gave it to him and he was like what
the hell is this? Some randomly placed
letters?
I laughed and asked him to replace
every letter with the next alphabet,
Umm like replacing D with E, Y with Z
and so on..
So when he did that he got this,
h ----> i
s ----> t
r ----> s
d ----> e
z ----> a
r ----> s
x ----> y
So this message (hsrdzrx) actually
meant itseasy .
Now lets use this analogy to understand
basic Encryption terms:
1. Plaintext
I wanted to say “itseasy” in above
example which is readable (by someone
who knows English) and it is something
we call Plaintext or Cleartext.
More technically I will say,
Data which can be read simply without
using any special measures is called
Plaintext or Cleartext.
2. Algorithm
The method I used to convert itseasy
into hsrdzrx (i.e. replacing the letter
with the next alphabet) is something we
call an operation , and the sequence of
two or more* operations is called an
Algorithm
3. Ciphertext
So applied an algorithm to the Plaintext
and got the coded text i.e. hsrdzrx which
is an example of Ciphertext.
4. Encryption
The process of applying algorithm to a
Plaintext to convert it into a Ciphertext
is called Encryption .
5. Decryption
The process of converting Ciphertext to
Plaintext is called Decryption .
So is that all about Encryption? No..keep
reading.
Me and my friend were very happy to
have our conversation encrypted but
then something bad happened. One of
our classmates guessed the way in
which we were encrypting our messages
and we were exposed.
Now we had to find a permanent
solution and we got one.
We bought a pen (with red colored LED
at the cap) whose ink was only visible in
green light, so we started to use that
pen to write our Ciphertext which gave
us added security to our Encryption.
We will call that pen a Key . So if
someone wants to read our messages he
will need that key.
Or in more technical words I would say,
A key is a piece of information that
allows only those that hold it to encode
and decode a message.
So as we encrypted itseasy by using the
next alphabet but as a key we may
replace our letter with the 5th next
alphabet like,
A B C D E F G H I J K L M
N O P Q R S T U V W X Y
Z
| | | | | | | | | | | | |
| | | | | | | | | | | |
|
F G H I J K L M N O P Q R
S T U V W X Y Z A B C D
E
Then the key will be 5 and to decrypt
the data the receiver needs to know he
key before he can decrypt the message.
Now there are two of encryptions,
1. Symmetric Encryption
The sender encrypts the message and
sends the data to the receiver and then
sends the key which can be used to
decrypt the message. But what if a
hacker intercepts the sent information?
Yep…He will be able to decrypt
everything.
2. Asymmetric Encryption
This type of encryption involves two type
of keys, a Public Key and a Private key .
Public key is used to Encrypt the
message and a Private Key is used to
Decrypt the message.
So like you are setting up a Shopping
Website you may give Public key to
users so they can (actually their
browser/program does that) encrypt
their Credit Card details.
Now only YOU own the Private Key
which can decrypt the data.
So Encryption is used to encrypt text?
Naah…
It is used to encrypt Data . You can
encrypt your Hard Drive with a custom
key. VPN (We are gonna talk about it
soon) is a good example of encryption.
SSL (Secure Sockets Layer) technology
also uses Encryption to provide secure
connections.
If you take hacking as a career you must have to know cryptography. At least the basics of encryption and decryption
Phishing is a type of social engineering
attack often used to steal user data,
including login credentials and credit card
numbers. It occurs when an attacker,
masquerading as a trusted entity, dupes a
victim into opening an email, instant
message, or text message.
If you are interested in hacking and want to learn hacking easily this channel is for you. Hacking Tutorials,tools and books coming soon stay tuned.
When solving problems, dig at the
roots instead of just hacking at the
leaves.
Hacking involves a different way of
looking at problems that no one's
thought of.
Trying to Hack Without Linux is like trying to catch a fish with your hand
Hacking is not just about knowing networking and programming its an art
