Playfair Cipher Example: Encrypting 'Communication' with Key 'Computer'

Encrypt using playfair cipher, “communication” is the plaintext and “computer” is the encryption key.

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Cryptography and its categories: Symmetric Vs Asymmetric Key Cryptography
https://youtu.be/QQpAoyCluN4

Different types of cipher: Substitution Cipher
https://youtu.be/nD6Qd68Fu6M

Caesar Cipher and Generalized Caesar Cipher
https://youtu.be/3BwaoruqSkk

Caesar Cipher Examples
https://youtu.be/LtBfWjPRjhc

Generalized Caesar Cipher Examples
https://youtu.be/Z4cq1HQa774

Affine Cipher Example
https://youtu.be/-vW0p9V3r2k

Playfair Cipher Example
https://youtu.be/Jy9bhAEzAtc

Vigenere Cipher Example : Using Vigenere Table Method
https://youtu.be/JBR4voAI4Xk

Vigenere Cipher Example: Using Keyword Method
https://youtu.be/UjuheBFqSMA

Keyless Transposition Cipher
https://youtu.be/GMS-4VZA4gY

Keyed Transposition Cipher
https://youtu.be/ta5TtYQVgY8