Message-ID: <37C449CE.1A16DC02@hushmail.com> Date: Wed, 25 Aug 1999 15:53:51 -0400 From: Alwyn Allan Newsgroups: sci.crypt Subject: Re: The use of yarrow to generate LARGE amounts of random data References: <37BF5825.B5FA8D1C@iname.com> [...] Linux /dev/random does about the same. I don't know about other unix variants. If you believe Intel's claims, their PIII/810 generator puts out about 70 Kbps of entropy. I don't know if software to read it is freely available yet. That would give you 500 MB in about 17 hours. Rainbow makes a crypto processor (FastMAP) that includes a RNG. If you believe their claims, it generates about 1 Mbps, so you could generate 500 MB in 1.1 hours. This device is used in fast SSL server hardware (IPIVOT). My ORB device generates about 500 bps of real entropy, securely wrapped in 1100 bps of data. Eight of them would generate your 500 MB in less than two weeks. Other commercial devices (Protego, Tundra, ComScire, Orion) have various bitrates. A. Peter Allan http://www.delanet.com/~apa/orb/