Hi,
JFTR, I have find a good implementation of the Rot13 algorithm for Java
that is perfect for my needs with just slights modifications on the
character mapping to add Spanish ones.
And I think it will be easy to implement the same in PHP also. Though
PHP has his own rot13 but it uses just alphabetic characters, so I will
create my own implementation with same char mapping as in the Java class.
Best regards,
On 06/07/12 12:47, Francisco M. Marzoa Alonso wrote:
Hi there,
I am looking for a way to obfuscate some strings in a way that they may
be unobfuscated later.
The point is that my app -a casual game- will take some lines from a
file on an http server, and I do not want to have it as readable plain
text. Please, note that I do not care if a user takes the effort to
decode and read it. There he will find the solutions to some game levels
no more, what I want is just to protect users to see the solutions even
by accident, but if some one wants to cheat, I do not give a damn.
I also like that the result of encoding process is still a readable
string, so the file may be threat as a text file still and not as a
binary one.
Also it should be standard or very easy to implement, so I can generate
compatible encoded strings using PHP also to decode later with Java.
I tried first with Android's Base64 class that seems to be a perfect
solution, but it requires API Level 8, so 2.1 devices are discarded and
I do not want that.
I think a XOR encoding may produce binary output at encoding.
MD5 is discarded for obvious reasons: it is not reversible.
Any ideas?
Thanks a lot in advance,
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