On Jan 15, 2008 8:40 PM, Ken Kixmoeller -- reply to ken@xxxxxxxxxxxxxx
<Kixjaguar@xxxxxxxxxxx> wrote:
>
> On Jan 15, 2008, at 11:08 PM, Andrés Robinet wrote:
>
>
> > I second that, you should base64 encode values before encrypting
> > and base64
> > decode them after decrypting to be safe.
> >
>
> Thanks for the idea.
>
> Like this? Fails 500/500 times on my test.
>
> ------------------------------------
> if ($EorD == "D") {
> $text_out = mdecrypt_generic($cypher,$text);
> $text = base64_decode($text);
> } else {
> $text= base64_encode($text);
> $text_out = mcrypt_generic($cypher,$text);
> } // endif ($EorD == "D")
> ------------------------------------
>
> A quick test looks like this:
>
> 1: String: 9334133814260182
> -|- Enc: X5Þ(c)·ža`p#È]#c¦±3 ÔýCõÒiÏ~r ¢Tª"
> -|- Dec:OTMzNDEzMzgxNDI2MDE4Mg== -|- Nope
>
> 2: String: 3027022406512648
> -|- Enc: j£n,h\"m ê´ uKP%¥† ¼D }H‚'f ¢š„
> -|- Dec:MzAyNzAyMjQwNjUxMjY0OA== -|- Nope
>
> 3: String: 5042504153020331
> -|- Enc: 9ÿ• ýŸÝ§¤6Wi+€×Ÿéáo>n ñº*J 6}Ø+„
> -|- Dec:NTA0MjUwNDE1MzAyMDMzMQ== -|- Nope
>
> 4: String: 6741156238850410
> -|- Enc: · :´[Úq\‹ë‹ 4\Q«ÍŽ5±{º‡µØtþðtN?b
> -|- Dec:Njc0MTE1NjIzODg1MDQxMA== -|- Nope
>
> 5: String: 0003100244041329
> -|- Enc: D¾¤ úV:!Mû 4ƒÜ€àœ‰ŽòÐÐ^ï Hñ-š %z
> -|- Dec:MDAwMzEwMDI0NDA0MTMyOQ== -|- Nope
>
> Wrong: 5/5
>
>
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>
It returns the correct value. If you look at the last example, and run
base64_decode on "MDAwMzEwMDI0NDA0MTMyOQ==", you will get
"0003100244041329".
-Casey
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