Loophole in Windows RNG

2007-11-13 Thread Jeffrey Altman
This paper justifies the decision not to rely on the Windows Random Number Generator. http://eprint.iacr.org/2007/419.pdf Quoting: We analyzed the security of the algorithm and found a non-trivial attack: given the internal state of the generator, the previous state can be computed in O(223)

Re: Loophole in Windows RNG

2007-11-13 Thread Rodney Thayer
yeah, I keep hearing about this. Some questions come to mind... wasn't one of these MS RNG's tested via FIPS at some point? what's the logic in concluding Win2k and WinXP and Vista have different RNG's? is this really the end of the world? I mean, is there some specific attack? is

Re: Loophole in Windows RNG

2007-11-13 Thread Joshua Hill
On Tue, Nov 13, 2007 at 03:37:42PM -0800, Rodney Thayer wrote: wasn't one of these MS RNG's tested via FIPS at some point? This seems likely. FIPS 140-2 cert #103 seems like the relevant cert http://csrc.nist.gov/groups/STM/cmvp/documents/140-1/1401val2000.htm#103 Further, the pseudocode