Markus Jakobsson, Elizabeth Shriver, Bruce K. Hillyer, and Ari Juels
Citation: A Practical Secure Physical Random Bit Generator. In M. Reiter, ed., Fifth ACM Conference on Computer and Communications Security, pages 103-111, 1998..
Abstract: We suggest a practical and economical way to generate
random bits using a computer disk drive as a source of randomness. It
requires no additional hardware (given a system with a disk), and no
user involvement. As a concrete example of performance, on a Sun Ultra-1
with a Seagate Cheetah disk, it generates bits at a rate of either 5
bits per minute or 577 bits per minute depending on the physical phenomena
that we use as a source of randomness. The generated bits are random
by a theoretical argument, and also pass a severe battery of statistical
tests.

