But I think this always returned me 128 bytes.  So am I supposed to
bzero the output buffer first?

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Christophe Devine
Sent: Friday, April 20, 2007 12:00 PM
To: openssl-users@openssl.org
Subject: Re: BIGNUM library

> So the error was not in OpenSSL or CAPI, but rather in the incorrect
> use of the function DH_generate_key (the return value was not taken
> into account properly when setting up the shared secret). A simple
> fix is to add zero padding when the secret is less than 128 bytes.

My mistake, it's the function DH_compute_key().

Christophe

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