Perhaps you're interested in recent memory attacks that I've been researching. 


pub   1024D/9D0FACE4 2008-03-11 [expires: 2010-03-11]
      Key fingerprint = 12E4 04FF D3C9 31F9 3405  2D06 B884 1A91 9D0F ACE4
      uid                  Jacob Appelbaum 
      sub   4096g/D5E87583 2008-03-11 [expires: 2010-03-11]