Denial of Service (DOS) Les Lester er Dela ela Cruz uz Comput - - PowerPoint PPT Presentation

Denial of Service (DOS)

Les Lester er Dela ela Cruz uz Comput

• mputer

er Engineer ngineering ing major major at SBCC Ment entor

• r:

: Adam dam Doupe

• upe

Depar epartment ment: : Comput

• mputer

er Science cience Facult aculty Adv dvis isor

• rs:

: Ric ichar hard d Kemmer emmerer er, , Chr hris istopher

• pher Kr

Krue uegel gel, , Gio Giovanni anni Vigna igna

FUNDING: The Office of Naval Research The Army Research Office The National Science Foundation

Denial of Service

• Denial of Service:

rendering a system unable to provide services

• Hackers use this

attack to manipulate stock exchanges

Types of Denial of Service

• Hardware DOS:

breaking the electronics betwee links

• Application Specifi

DOS: crashing one specific site

Application Specific DOS Defense

• Apps are

made of codes

• Codes take

resources

• Hackers attack

the parts that take a lot of resources

• Line of

Defense: remove the parts that consume the most resources

Mitigation Approach

Relative Resouce Consumption of Each Operation

Resources for Each Operations in an Application

• Accurately identify which parts consume the most resources
• Implement our algorithm
• Check our results

Relative Resource Consumption for Each Operation

Resources for Each Operations in an Application

ABRACADABRA! Algorithm

Requirements

• Speed
• Flexible
• Configured
• Automated

Website.com Website.com

Solutions

code

Speed

• Initial attempt
• Required external

process

• Improved attempt works

but not the best

• Final = success!

2:49 2:49 0:10 24:02 2:24 1:03

5 10 15 20 25 30

Initial Attempt Improved Attempt Final Attempt Launching Attempts

Speed Progression Automation Code Openstack Bootup = 1 min – 5 mins

Software in Action

Future Prospects

Algorithm

Future Prospects

… …

No More Crashing

Acknowledgements