What encryption algorithm should be used for encrypting text as text n FreePascal/Delphi? -

I need to encrypt some text in my program using Lazarus / FreeSpace, but I want to use them as text It should be able to load, decrypt them, instead of binary because they need to save them in the TSTRing type property.

Which algorithms (S) are suitable for that?

I usually use Raisandel.