Classical Cryptography Challenge

3 positions diagonal in the alphabet

1 position forward in the alphabet

3 positions forward in the alphabet

3 positions backward in the alphabet

Caesar cipher

Vigenère cipher

Transposition cipher

Substitution cipher

5

4

3

2

It encrypts data using a fixed key.

It uses a one-time pad for encryption.

It uses a symmetric key for encryption.

It relies on a public key infrastructure.

Caesar cipher

RSA encryption

Vigenère cipher

one-time pad

Duplicate letters in a digraph are handled by replacing the second letter with a filler letter, usually 'X'.

Duplicate letters are combined into a single letter.

Duplicate letters are ignored entirely.

Duplicate letters are replaced with the next letter in the alphabet.

Zigzag pattern across multiple rails

Substitution of letters

Straight line encryption

Transposition of words

5

3

2

4

n!

2^n

n^2

2n

The plaintext is used to generate the keystream for encryption.

The plaintext is used to create a static key for encryption.

The plaintext serves as the final output of the cipher.

The plaintext is encrypted directly without modification.