Brian Wotring is the CTO of Host Integrity, Inc. a company that
specializes in providing software to help monitor the integrity of desktop and
server environments. Brian studied computer science and mathematics at the
University of Alaska and the University of Louisiana.
Brian founded and maintains knowngoods.org, an online database of known good
file signatures for a number of operating systems. He also is the developer of
ctool, an application that provides limited integrity verification for prebound
Mac OS X executables. Brian is currently responsible for the continued
development of Osiris, an open source host integrity monitoring system. As a
long-standing member of The Shmoo Group of security and privacy professionals,
Brian has an interest in secure programming practices, data integrity solutions,
and software usability. Along with Bruce Potter and Preston Norvell, Brian
co-authored the book, Mac OS X Security. Brian has presented at CodeCon and at
the Black Hat Briefings security conferences.
Bruce Potter (Technical Editor) is a Senior Associate at Booz Allen Hamilton.
Prior to working at Booz Allen Hamilton, Bruce served as a software security
consultant for Cigital in Dulles, VA. Bruce is the founder of the Shmoo Group of
security professionals. His areas of expertise include wireless security,
large-scale network architectures, smartcards, and promotion of secure software
engineering practices. Bruce coauthored the books 802.11 Security and Mac OS X
Security. He was trained in computer science at the University of Alaska,
Fairbanks.
Rainer Wichmann (Techncial Reviewer) is system administrator and research
scientist at the University of Hamburg. He has studied physics and astronomy at
the University of Heidelberg and received his Ph.D. in astronomy from there. He
is responsible for the development of the Samhain host integrity monitoring
system, and he has authored various other small applications in the fields of
astronomy and computer security. He has written several computer security
articles published by Samhain Labs.
Marcus Ranum (Foreword) has been building computer security systems since the
late 1980s, when he was an early innovator in designing Internet firewall
systems and products. Since that time he has been involved in every aspect of
the computer security field: writing, teaching, designing and developing
products, consulting, and managing and founding successful product companies. He
lives in Morrisdale, PA, with his wife, Katrina, and a small herd of horses,
dogs, and cats.
