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  CRYPTOGRAPHY TOPICS: What is cryptography? Classification of cryptography? How various cryptographic algorithms work?       1. WHAT IS CRYPTOGRAPHY? as you see in the picture first we write a word or paragraph, or the thing we need to encrypt .  and then the  software make 2 keys 1) Receiver's key public key                                                                    2)  Private key sender sends the message of form public key and  the receiver uses the Private key to unencrypt the message of the sender . (As the hackers and normal users only see a useless message and cant unencrypt it .But the owner of private key can see the real text or message .) 2. CLASSIFICATION OF CRYPTOGRAPHY. Symmetric key cryptography: An encryption system in wh...

FULL STACK DEVELOPER Is it's hard to become a FULL STACK DEVELOPER? How to become one? Is it's true you get rich if you become FULL STACK DEVELOPER? Is it's in demand? Why is it so popular?                                                        Wanna know the answer?   Why it is in demand ?             It is in demand because, They are valuable assets for any company. Their wide knowledge in every technical skill makes them one man army for any company. He/she who is full stack developer can be a good team leader and a project manager in a company cause he knows every aspect of software products in a company. And can be used in every kind of projects from web to applications and needed for startups to big big companies like Google, Microsoft etc.               ...