this isn't the problem
encrypt in Java -> decrypt in Java ok (with CBC or some other block cipher)
encrypt in C++ -> decrypt in C++ ok (with CBC or some other block cipher)
encrypt in Java -> decrypt in C++ fail (except ECB with nopadding)
encrypt in C++ -> decrypt in Java fail (except ECB with nopadding)
The problem with ECB with nopadding is...
that if encrypt for example a binary where most of the data is NULL
the ecnrypted has lots of repeated data
exampe
Hex 00 00 00 00 00 00 00 00 00 ...00 00 00 00 00 00 00
becomes to
Hex 01 EA EA 2B 01 EA EA 2B ... 01 EA EA 2B 01 EA EA 2B
(no real data, only a example)
I forgot to mention I use Crypto ++ Version 4.2, because I'm not able to get 5.1 (or 5.2) running on our
VS 6.0 project ( i get a lot of linker errors, but working with 4.2 is ok !?!?!??!)
If somebody can give me some example
How JAVA and Crypto CPP can work together (with AES, if possible)
I would be very glad :-)
regards
Norbert
2006/11/14, Jeffrey Walton <
[EMAIL PROTECTED]>:
Hi Norbert,
The FAQ has a few examples of Block Cipher use with AES as a demonstration.
Jeff
http://www.eskimo.com/~weidai/cgi-bin/fom-serve/cache/79.html
On 11/14/06, Norbert Thek < [EMAIL PROTECTED]> wrote:
> Hello
>
> This question was asked several days ago, but I'm not able to find the mails
> anymore and the mailist archive is also not working.
> ( http://www.mail-archive.com/[email protected] isn't
> working)
>
> I tried to use the build in JAVA Cipher but the only way to get it working
> was by using
> "Cipher.getInstance ("AES/ECB/NoPadding")"
>
> But this is not very clever (I want to crypt a licensfile which have about
> 3 kb or little less)
>
> Can somebody tell, which padding I can use to let java and C++ work
> together?
>
> It would be optimal if someone can send some democode!
>
>
> regards
> Norbert
