kern/166508: [glxsb] AES 256 encryption does not work with glxsb driver

[Patrick Lamaiziere]

The following reply was made to PR kern/166508; it has been noted by GNATS.

From: Patrick Lamaiziere <patfbsd at davenulle.org>
To: bug-followup at FreeBSD.org, todd at toddblum.org
Cc:  
Subject: Re: kern/166508: [glxsb] AES 256 encryption does not work with
 glxsb driver
Date: Sun, 24 Jun 2012 14:33:52 +0200

 Hello,
 
 This is a known issue and a problem within the crypto(9) framework. In
 the crypto framework we can only specify the algorithm (here aes) to
 use but not the size of the key. As glxsb only does aes-128, it fails
 when the crypto framework opens a session on it if the key size if
 different than 128.
 
 There is a CAVEAT section in the manual page of glxsb(4) for this :
 CAVEAT
      The crypto(9) framework will fail to open the crypto session on the
      device if the AES key's length is != 128 bits.  This prevents the
      use of the glxsb device driver with AES keys of length != 128 bits.
 
 To make this to work, it need some changes in crypto(9). Sorry.
 (we can close this PR I guess, as it will not be solved)
 
 Regards.