Module 5: What is a cipher (substitution and transposition)?

There are many different types of ciphers

The examples shown in this video are substitution and transposition ciphers

This video shows how normal plain-text is converted to cipher-text

References:

[JonnyBoyThan]

To make it faster you should've just counted 3 to the left on the last one. I'm sure you know this and we're just showing an example but it would've been nice demonstrating the quickest version aswell.

[kruvik]

Nice video. Is the second key by any chance the numbers from Lost?

[pedersteenberg]

MAGNET
HAMMER
OR USE :
CIPHER /W:C/
OVERWRITE 3 TIMES .
DBAN