Difference Between Substitution and Transposition Cipher

Difference Between Substitution and Transposition Cipher.


SUBSTITUTION CIPHER TRANSPOSITION CIPHER
In substitution Cipher Technique, plain text characters are replaced with other characters, numbers and symbols In transposition Cipher Technique, plain text characters are rearranged with respect to the position
Substitution Cipher’s forms are: Mono alphabetic substitution cipher and poly alphabetic substitution cipher Transposition Cipher’s forms are: Key-less transposition cipher and keyed transposition cipher
In this techniques, character identity is changed but position is same In this techniques, the position of the character is changed but characters identity is not changed.
EX: Caesar Cipher EX: Reil Fence Cipher