ZigZag

The Zigzag Cipher is a transposition cipher that rearranges the letters of a message in a zigzag pattern across multiple rows (rails) and then reads them row by row to produce the ciphertext. It is similar in principle to the Rail Fence Cipher but emphasizes the visual zigzag path of letters. The cipher relies on the number of rows as the key to determine the path and order of characters.

The Kangaroo Cipher is a simple substitution cipher that uses a keyword to generate a variable shift pattern across the plaintext. It is similar in concept to the Caesar Cipher but instead of a single uniform shift, each letter is shifted according to the corresponding letter in the keyword, which repeats across the message.

The Transposition Cipher is a classical cipher technique that rearranges the letters of the plaintext according to a defined system, without changing the letters themselves. Unlike substitution ciphers, where letters are replaced with other letters or symbols, transposition ciphers preserve the original letters but change their positions to create the ciphertext.

The Rail Fence Cipher is a classical transposition cipher that rearranges the letters of a plaintext message into a zigzag pattern across multiple "rails" (rows) and then reads them sequentially row by row to form the ciphertext. It is a simple but effective method for obscuring the order of letters, making it harder for casual observers to read the message without knowing the number of rails used.