Cryptography Explained: Symmetric vs. Asymmetric Keys with Practical Linux Examples 🔐

This video covers both symmetric or asymmetric key cryptography with 100% practical example in Linux.

Q. What is symmetric key cryptography ?

Ans. Symmetric key cryptography (or symmetric encryption) is a type of encryption scheme in which the same key is used both to encrypt and decrypt messages. Such a method of encoding information has been largely used in the past decades to facilitate secret communication between governments and militaries. Nowadays, symmetric key algorithms are widely applied in various types of computer systems to enhance data security.

Q. What is asymmetric key cryptography ?
Ans. Asymmetric cryptography, also known as public-key cryptography, is a process that uses a pair of related keys -- one public key and one private key -- to encrypt and decrypt a message and protect it from unauthorized access or use. A public key is a cryptographic key that can be used by any person to encrypt a message so that it can only be deciphered by the intended recipient with their private key. A private key -- also known as a secret key -- is shared only with key's initiator.


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