1. Substitution Cipher / Monoalphabetic Substitution Cipher encoder
Text : ABCD efghi
Plaintext Alphabet : abcdefghijklmnopqrstuvwxyz
Ciphertext Alphabet : zyxwvutsrqponmlkjihgfedcbaSolution:The Substitution cipher is a cipher, where each letter of plaintext is replaced by corresponding letter of ciphertext
| Plaintext Alphabet | a | b | c | d | e | f | g | h | i | j | k | l | m | n | o | p | q | r | s | t | u | v | w | x | y | z |
| Ciphertext Alphabet | z | y | x | w | v | u | t | s | r | q | p | o | n | m | l | k | j | i | h | g | f | e | d | c | b | a |
| Plaintext | : ABCD efghi |
| Ciphertext | : ZYXW vutsr |
2. Substitution Cipher / Monoalphabetic Substitution Cipher encoder
Text : hello world
Plaintext Alphabet : abcdefghijklmnopqrstuvwxyz
Ciphertext Alphabet : zyxwvutsrqponmlkjihgfedcbaSolution:The Substitution cipher is a cipher, where each letter of plaintext is replaced by corresponding letter of ciphertext
| Plaintext Alphabet | a | b | c | d | e | f | g | h | i | j | k | l | m | n | o | p | q | r | s | t | u | v | w | x | y | z |
| Ciphertext Alphabet | z | y | x | w | v | u | t | s | r | q | p | o | n | m | l | k | j | i | h | g | f | e | d | c | b | a |
| Plaintext | : hello world |
| Ciphertext | : svool dliow |
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