Substitution vs Transposition Ciphers: Key Differences Explained 🔐

Difference between Substitution Cipher and Transposition Cipher | Substitution vs Transposition

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There are basically two types of symmetric cipher: Substitution Cipher, Transposition Cipher.

Substitution Cipher: A substitution is a technique in which each letter or bit of the plaintext is substituted or replaced by some other letter, number or symbol to produce cipher text. For Example, ABC ⟹ XYZ.
Types of Substitution Cipher: Caesar Cipher, Monoalphabetic Cipher, Vigenère Cipher, Playfair Cipher, One time pad cipher (Vernam cipher), Hill Cipher.

Transposition Cipher: In transposition technique, there is no replacement of alphabets or numbers occurs instead their positions are changed or reordering of position of plain text is done to produce cipher text. For Example, ABCDE ⟹ BADEC.
Types of Transposition Cipher: Rail Fence Cipher, Columnar Transposition Cipher.

The Columnar Transposition Cipher is a form of transposition cipher in which plain text represent in matrix form. Columnar Transposition involves writing the plaintext out in rows, and then reading the ciphertext off in columns one by one.

In this video, I have explained difference between Subsctituion Cipher and Transpositon cipher in Network Security.
Difference between Substituion and Transposition Cipher
Substituion vs Transposition Cipher
Transposition vs Substitution Cipher
Which one is more secure, transposition or substitution cipher?

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Check out our other video on our channel page

Caesar Cipher:
https://youtu.be/_l5GOIDnt2Y

Monoalphabetic Cipher:
https://youtu.be/iL9PZZfcNYY

Playfair Cipher:
https://youtu.be/Xc3xvZKjAh4

Vigenere Cipher:
https://youtu.be/OWeqP65Ixg8

Hill Cipher:
https://youtu.be/sYdq6-kquKc

One Time Pad Cipher:
https://youtu.be/tVHiSeX3Bw0

Rail fence cipher/Zigzag cipher:
https://youtu.be/FR0ioJtag5Y

Columnar Transposition Cipher:
https://youtu.be/ymhELvEbLwE

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