Cryptography Part 01 - How cryptography basically works?

[sewekev]

Let's think of a scenario where we have, a Sender – a Carrier - a Reciever.

Sender sends a message, “password: IceCream” in plain text , carrier carries that to Reciever. What if carrier reads the message in middle, he would steal your info right?

That’s where we can use cryptography. Cryptograpy is study and practice of secure communication where untrusted third party involves. Here the untrusted third party is Carrier.

You and your friend know a rule called atbash. More about that later. Now if you encrypt it with that rule and turn it into cipher text like this : “kzhhdliw:rxvxivzn” and send that message to receiver through the middleman.

The middleman can read it but you don’t need to worry about it cause he wouldn’t understand it right. Now your friend can decrypt it according to the rule and turn it into actual message “password: IceCream”. This is over simplified but that’s how cryptography works.

About the Atbash Algorithm :

ABCDEFGHIJKLMNOPQRSTUVWXYZ

ZYXWVUTSRQPONMLKJIHGFEDCBA

Look at those two rows. Think of 2nd row as value of 1st row. So A = Z, B = Y………….X=C,…….,Z = A.

Encipher or Encryption : Using that rule if you replace each character of “password:IceCream” you will get “kzhhdliw:rxvxivzn”.

Decipher or Decryption : Doing Vice versa on “kzhhdliw:rxvxivzn” like replacing Z = A, Y=B,…….., C = X, ……, A = Z like taking 1st row as value of 2nd row we get the original message “password:IceCream”.

Keys : Think of those rules as keys. Key to encrypt and key to decrypt a message.

 

[sewekev]

who cares
LMAO

The https connection youre in cares. The SSL protocol which making your connection secured cares XD

 

[levigenesis]

Let's think of a scenario where we have, a Sender – a Carrier - a Reciever.

Sender sends a message, “password: IceCream” in plain text , carrier carries that to Reciever. What if carrier reads the message in middle, he would steal your info right?

That’s where we can use cryptography. Cryptograpy is study and practice of secure communication where untrusted third party involves. Here the untrusted third party is Carrier.

You and your friend know a rule called atbash. More about that later. Now if you encrypt it with that rule and turn it into cipher text like this : “kzhhdliw:rxvxivzn” and send that message to receiver through the middleman.

The middleman can read it but you don’t need to worry about it cause he wouldn’t understand it right. Now your friend can decrypt it according to the rule and turn it into actual message “password: IceCream”. This is over simplified but that’s how cryptography works.

About the Atbash Algorithm :

ABCDEFGHIJKLMNOPQRSTUVWXYZ

ZYXWVUTSRQPONMLKJIHGFEDCBA

Look at those two rows. Think of 2nd row as value of 1st row. So A = Z, B = Y………….X=C,…….,Z = A.

Encipher or Encryption : Using that rule if you replace each character of “password:IceCream” you will get “kzhhdliw:rxvxivzn”.

Decipher or Decryption : Doing Vice versa on “kzhhdliw:rxvxivzn” like replacing Z = A, Y=B,…….., C = X, ……, A = Z like taking 1st row as value of 2nd row we get the original message “password:IceCream”.

Keys : Think of those rules as keys. Key to encrypt and key to decrypt a message.

thanks for the info!

 

[sewekev]

thanks for the info!

Welcome more post about encryption will be posted.

 

[FawazTakhji]

who cares
LMAO

you are adding nothing to the conversation

 

[Zackov]

Really Thank you :3

 

[phoenix63181]

Really Thank you :3

 

[kokopop1211]

thanks a lot c;

 

[Zeusisme]

thank for your information sir, it's very helpfull

 

[rublev98]

Sorry i don now

 

[Shirshah777]

ksdflksfksahfklsjf;lsakjfkdsd
liksaldfkhsalkjflskjl;sjjlslkjfla





it means thank yo so much for your nice information

 

[nickclone]

Cryptography is based on algorithms

 

[|JohnJOHN|]

You are a very intellectual person

 

[Aurifex]

A cryptographic algorithm, or cipher, is a mathematical function used in the encryption and decryption process. A cryptographic algorithm works in combination with a key — a word, number, or phrase — to encrypt the plaintext. The same plaintext encrypts to different ciphertext with different keys. The security of encrypted data is entirely dependent on two things: the strength of the cryptographic algorithm and the secrecy of the key.

A cryptographic algorithm, plus all possible keys and all the protocols that make it work comprise a cryptosystem. OpenPGP is a cryptosystem.

 

[omaraliii]

thanks for the useful info bro <3

 

[JumezRW]

thx bro, you best

 

[kardel81]

too long to read hahaha but thats for the info