Transposition Ciphers

Transposition Ciphers are introduced as another fundamental concept in encryption. Unlike substitution ciphers which replace characters, transposition ciphers rearrange the order of characters in the plaintext according to a specific rule or key. The lecture covers different types of transposition ciphers, including the Rail Fence cipher and the Columnar Transposition cipher, elucidating their workings and historical significance. Understanding transposition ciphers provides students with insights into alternative methods of concealing information, complementing their understanding of substitution ciphers. Mastery of transposition ciphers lays the groundwork for a deeper exploration of encryption techniques in subsequent lectures.