How can a plaintext can convert into cipher text? Give example.

Subject Computer and Network Security
NU Year Set: 1.(c) Marks: 4 Year: 2017

Ciphertext is created by applying a cipher to plain text.

For example, using the Caesar cipher with a key of BCD…, the plaintext “hello world” becomes “ifmmn xpsme”

There are many different ciphers and innumerable keys, but the process is the same.

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