Hello James,

Right now I  was writing a letter to you with the question regarding
integration of openvpn and openssl 0.9.7 .:).
I'll be glad to receive such patch because I need to integrate AES algorithm
to openvpn
(my boss requested this).

Thanks, in advance.

Ildar.
PS.
Is the patch only for AES 256 and does not work for AES128 and AES192 ?

----- Original Message -----
From: "James Yonan" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Friday, May 03, 2002 7:09 PM
Subject: OpenVPN and OpenSSL 0.9.7 was: Re: Integration of AES algorith to
OpenSSL Crypto library


> > > So, I need to know the process of integration of new cipher to Crypto
> > > library.
> > > I've tried to place the directory with new cipher (aes) inside of the
> crypto
> > > directory,
> > > modified root Makefile.ssl and crypto/Makefile.ssl however it seems
that
> it
> > > is not enough -
> > > new codec does not appear in the list of supported codecs of openvpn
> > > executable.
> >
> > Ask the author, James Yonan, he is around on this list.
> > And with him around asking about EVP-problems I am would guess that
> > he already nailed down the problem with 0.9.7.
>
> OpenVPN uses the cipher-independent EVP layer of OpenSSL as an interface
to
> the symmetric cipher algorithms.  In the current 0.9.7 snapshot, the EVP
API
> has been modified so it is incompatible with 0.9.6 -- this is probably the
> cause of the crash.  I had the same result when I tried to test OpenVPN
with
> 0.9.7 and AES-256.  I know there's some discussion going on about fixing
> this, so the EVP API stays compatible.
>
> If you need something right now, I have a simple patch for 0.9.7 which
will
> restore the 0.9.6 EVP behavior.  When I applied this patch, OpenVPN ran
fine
> with 0.9.7 and the AES-256 cipher.
>
> James Yonan
> OpenVPN developer
> http://openvpn.sourceforge.net/
>
>
> ______________________________________________________________________
> OpenSSL Project                                 http://www.openssl.org
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>
>
>
>


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