> I am not sure if it will help of if you have already tried
> this but try
> all of the cipher modes available for the tripledes cipher (eg. cfb,
> ecb, etc.). There may be a difference in the way .net and mcrypt
> produces the cipher text but if that were the case then it
> wouldn't be a
> true tripledes encryption for either the .net or mcrypt encryption
> libraries. Are you able to view the source of the .net code which
> originally produced the cipher text? If so then see what mode it is
> using with the tripledes cipher. And you are right about the
> documentation, it took me awhile to get it working and even longer to
> figure out how it worked. Good luck,
> Jas
I did check out the .net documentation and it uses cbc, but maybe I'll
try
the other modes for kicks.
-Craig
>
> Craig wrote:
> > Hi all,
> >
> > I am truly hoping that someone can help with this.
> > I am making the ecommerce site for a product that
> > I had nothing to do with the development of. =)
> >
> > The product is making a licence file using the .net
> > 3des, but I am not able to get the same output using
> > the mcrypt 3des.
> >
> > this is the .net original text and the cipher text:
> > Golf Genie 5.0
> > ª:b•#–æaŒž"[EMAIL PROTECTED]">#p0, 7
> >
> > this is what i get
> > ¿^U`ÎdÀ4`oãõwÑî% - from Golf Genie 5.0
> > ¿^U`ÎdÀ4!é$”G Iø - from Golf Genie 5.0\r\n
> >
> >
> > I don't know too much about encyrption, and I have found
> > the documentation of mcrypt to be the worst of any php
> > module I have yet used, so i'm not sure of the consequenses
> > of using cbc versus ecb are, etc.
> >
> > here is the code i am using.
> >
> > $key =
> > "\x6B\x00\x64\x00\x4E\x00\x44\x00\x38\x00\x37\x00\x5E\x00\x21\x00";
> > $input = "Golf Genie 5.0";
> > $iv = "\x2B\x00\x5F\x00\x65\x00\x6B\x00";
> >
> > $td = mcrypt_module_open ('tripledes', '', 'cbc', '');
> > mcrypt_generic_init ($td, $key, $iv);
> > $encrypted_data = mcrypt_generic ($td, $input);
> > mcrypt_module_close ($td);
> >
> > echo $encrypted_data;
> >
> > ps. I can't use mcrypt_generic_deinit - i get 'Fatal error: Call to
> > undefined function: mcrypt_generic_deinit()... '
> >
> > thanks in advance,
> > Craig
>
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