Trustworthy Systems
Build a system used by millions of people that
- Only services authorized users
- Service cannot be denied (can’t destroy data or power).
- Information cannot be stolen.
- Is always available: (out less than 1 second per 100 years = 8 9’s of availability)
- 1950’s 90% availability, Today 99% uptime for web sites, 99.99% for well managed sites (50 minutes/year) 3 extra 9s in 45 years.
- Goal: 5 more 9s: 1 second per century.
- And prove it.