Please Read these points to know about this encryption system

1. It is a 3*3 hill cipher cryptography technique.
2. It is using the following 3*3 key matrix:
   
   6
   13
   20

   24
   16
   17

   1
   10
   15
3. It supports 26 characters i.e. A to Z.
4. It doesn't support decrypting character 'Z' so make sure to avoid using 'Z' in your plaintext.
5. It encrypts the plain text, 3 characters at once.