Explain Symmetric Cipher Model With Neat Diagram

Explain Symmetric Cipher Model With Neat Diagram.

Fig. Symmetric Cipher Model 

An original message is known as the plaintext, While the coded message is called the ciphertext.

The process of converting plaintext to ciphertext is known as encryption, restoring the plaintext from the ciphertext is decryption.

Plaintext is the original message that is pass as the input to the encryption algorithm.

Encryption algorithm perform various substitutions and transformations on the plaintext.

The secret key is also input to the encryption algorithm.

The key is the value independent of the plaintext and of the algorithm.

The algorithm will produce a different output depending on the specific key being used at the time.

Ciphertext is the encrypted message produced as output.

It depends on the plaintext and the secret key.

The ciphertext is an random stream of data.

Decryption algorithm is essentially the encryption algorithm run in reverse.

it takes the ciphertext and the secret key and produces the original plaintext.