substitution cipher
nounCryptography.
a cipher that replaces letters of the plain text with another set of letters or symbols.
Origin of substitution cipher
1First recorded in 1935–40
- Compare transposition cipher.
Words Nearby substitution cipher
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use substitution cipher in a sentence
Then why didn't the Germans use a substitution cipher when they sent this message about the transports?
The Secret Wireless | Lewis E. TheissThat brought the message down to the simple and straightforward matter of a substitution cipher.
Browse