Using a webcam to generate random bits

College

College of Computer Studies

Department/Unit

Software Technology

Document Type

Archival Material/Manuscript

Publication Date

2006

Abstract

This paper presents a method for generating random bits from images or snapshots obtained using a low-quality webcam. The color information is mixed with clock information to generate bit streams, which are then subjected to a having process using SHA-1. Results from using the NIST statistical test suite show that the random bit generator produces cryptographically strong random bits.

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Disciplines

Computer Engineering

Note

Undated; Publication/creation date supplied

Keywords

Webcams; Random number generators

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