Re: the skein hash function

2008-11-01 Thread Peter Gutmann
Bill Stewart [EMAIL PROTECTED] writes: A quick google-look at ASICs showed a number in the range of 300K-20M gates, so hash-trees could probably get speedups of up to 20-100x if you can keep from becoming input-speed-bound. The 300K chips were about $6, 5M at $50 and 350MHz, which is somewhat

Bitcoin P2P e-cash paper

2008-11-01 Thread Satoshi Nakamoto
I've been working on a new electronic cash system that's fully peer-to-peer, with no trusted third party. The paper is available at: The main properties: Double-spending is prevented with a peer-to-peer network. No mint or other trusted parties. Participants

Re: Who cares about side-channel attacks?

2008-11-01 Thread Ray Dillinger
On Thu, 2008-10-30 at 16:32 +1300, Peter Gutmann wrote: Look at the XBox attacks for example, there's everything from security 101 lack of checking/validation and 1980s MSDOS-era A20# issues through to Bunnie Huang's FPGA-based homebrew logic analyser and use of timing attacks to recover