A simple program to encode and decode matrix ciphered text.

First of all import the dependency and repository:

<repository>
    <id>PauMAVen</id>
    <url>https://raw.githubusercontent.com/PauMAVA/PauMAVen/master</url>
</repository>

<dependency>
    <groupId>me.PauMAVA</groupId>
    <artifactId>MatrixCipher</artifactId>
    <version>0.1.003</version>
</dependency>

String encrypted = MatrixCipherTools.encrypt("Hello world, my name is PauMAVA");
// Encrypted text: Hl ly eormealo mPVw,a A dnsM!  iuA

String decrypted = MatrixCipherTools.decrypt("Hl ly eormealo mPVw,a A dnsM!  iuA");
// Decrypted text: Hello world, my name is PauMAVA

First of all you need to understand the two methods of iterating a matrix that this library uses.

The text to be encrypted is written diagonally in a Character matrix:

Then the text is read in a natural reading order (left to right and up to down).

The text to be decrypted is written naturally in a Character matrix. Then the text is read diagonally.

By enabling advanced mode an extra step will be added to the encryption/decryption process.

1. Every char will be converted to an int.
2. A number corresponding to the multiplication of the coordinates in the matrix of the char will be added to the int code in a circular range between 48 and 125.
3. The int will be converted to a char.

To use advanced encryption/decryption:

MatrixCipherTools.encrypt("Your text", true);
MatrixCipherTools.decrypt("Your text", true);