Encryption Part 1

Front

What is a Caesar cipher?

Back

A type of substitution cipher where each letter in the plaintext is shifted a certain number of places down or up the alphabet.

Front

What is a substitution cipher?

Back

A method of encryption where each letter in the plaintext is replaced with a letter from a fixed system.

Front

What is decryption?

Back

The process of converting ciphertext back into plaintext.

Front

What is encryption?

Back

The process of converting plaintext into ciphertext to secure information.

Front

What is a key in cryptography?

Back

A number or set of numbers used in a cipher to encrypt or decrypt messages.

Front

How do you encrypt the word 'alphabet' using a Caesar cipher with a shift of 3?

Back

The encrypted word is 'DOSKDEHW'.

Front

What does a shift of -4 mean in a Caesar cipher?

Back

It means each letter is shifted 4 places to the left in the alphabet.

Front

What is the result of decrypting 'Wsaokia' with a shift of -4?

Back

The decrypted word is 'Awesome'.

Front

What is cryptography?

Back

The practice and study of techniques for securing communication and information.

Front

What is plaintext?

Back

The original, readable text before encryption.