DES

This document includes DES and 3DES functions.

mln_des

@mln_des(data, key, op);

Input:

• data - string value and its length % 8 must be 0.
• key - must be an integer value.
• op - a string value to indicate function to encrypt or decrypt. It only has two values: encode and decode.

Return value:

• an encrypted or decrypted string.

Error:

• If encounter an invalid argument, interpreter will throw an error and stop executing.

Example:

text = 'DES test'; //length is 8
cipher = @mln_des(text, 100, 'encode');
@mln_print(cipher);
@mln_print(@mln_des(cipher, 100, 'decode'));

The output is:

4xF???Q
DES test

mln_3des

@mln_3des(data, key1, key2, op);

Input:

• data - string value and its length % 8 must be 0.
• key1, key2 - must be an integer value.
• op - a string value to indicate function to encrypt or decrypt. It only has two values: encode and decode.

Return value:

• an encrypted or decrypted string.

Error:

• If encounter an invalid argument, interpreter will throw an error and stop executing.

Example:

text = 'DES test'; //length is 8
cipher = @mln_3des(text, 100, 99, 'encode');
@mln_print(cipher);
@mln_print(@mln_3des(cipher, 100, 99, 'decode'));

The output is:

t?M??*?
DES test