IPSEC allegations

[Bakul Shah]

On Wed, 15 Dec 2010 17:06:48 +0100 =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des at des.no>  wrote:
> [redirected from -hackers to -security]
> 
> Jakub Lach <jakub_lach at mailplus.pl> writes:
> > http://marc.info/?l=3Dopenbsd-tech&m=3D129236621626462&w=3D2
> 
> http://maycontaintracesofbolts.blogspot.com/2010/12/openbsd-ipsec-backdoor-=
> allegations.html

I am looking at this only as an interesting puzzle (any
motivations of various parties involved are of no relevance
in this narrow context).  I have no crypto expertise so my
question may make no sense.

But can one do a "black box" analysis (that is, no peeking at
source code!) to figure out if keys are being leaked etc.?  I
am thinking something analogous to spectal analysis of
signals.  For instance, doing fourier analysis on the
encrypted white noise or some such.

Thanks!