Conventional Encryption

Plain Text Input

Dear Sir

My name is Sam and my

Date of Birth is

28/07/1992

Algorithm

Secret key shared by sender and recipient

!"£$$%%^&^&**((())))!"£$$%^&*uyt!235CEFHJ"£*()£$%)()_+_)$Vnn,ooo998

Encryption algorithm

Secret key shared by sender and recipient

!"£$$%%^&^&**((())))!"£$$%^&*uyt!235CEFHJ"£*()£$%)()_+_)$Vnn,ooo998

Transmitted ciphertext

Plain Text Output

Dear Sir

My name is Sam and my

Date of Birth is

28/07/1992

Decryption

Plain text or original message is fed into an algorithm's input.

A secret key is input to the algorithm and all transformations and substitutions depend on that key.

The encryption algorithm performs various substitutions and transformations on plain text.

A ciphertext scrambled message is produced as output.

To decipher the message, a decryption algorithm is run. It takes the ciphertext and the same secret key and produces the original plain text message.