A Gentle Introduction To Cryptography
With the increasing incidence of identity thefts, credit card frauds, social engineering attacks, the digital world is facing challenges in the years ahead. Obviously, cryptography, a young science, will play a prominent role in the security of protecting digital assets. This article tries to explain the basics of cryptography (encryption) using plain language.
Let us take the example of scrambling an egg. First, crack the shell, pour the contents into a bowl and beat the contents vigorously until you achieved the needed result - well, a scrambled egg. This action of mixing the molecules of the egg is encryption. Since the molecules are mixed-up, we say the egg has achieved a higher state of entropy (state of randomness). To return the scrambled egg to its original form (including uncracking the shell) is decryption. Impossible?