How to Crack Programs, and Defend Against Cracking Lecture 2

109 Pages·2014·0.81 MB·English

Software Protection:
How to Crack Programs, and
Defend Against Cracking
Lecture 2: Attack Models
Minsk, Belarus, Spring 2014
Christian Collberg
University of Arizona
www.cs.arizona.edu/˜collberg
(cid:13)c May27,2014ChristianCollberg
Last week’s lecture
1 Give an example of a software protection
scenario!
2/79
Last week’s lecture
1 Give an example of a software protection
scenario!
2 What does MATE stand for?
2/79
Last week’s lecture
1 Give an example of a software protection
scenario!
2 What does MATE stand for?
3 What is obfuscation?
2/79
Last week’s lecture
1 Give an example of a software protection
scenario!
2 What does MATE stand for?
3 What is obfuscation?
4 What are the three kinds of obfuscating
transformations?
2/79
Last week’s lecture
1 Give an example of a software protection
scenario!
2 What does MATE stand for?
3 What is obfuscation?
4 What are the three kinds of obfuscating
transformations?
5 What is tamperproofing?
2/79
Last week’s lecture
1 Give an example of a software protection
scenario!
2 What does MATE stand for?
3 What is obfuscation?
4 What are the three kinds of obfuscating
transformations?
5 What is tamperproofing?
6 What two actions make up a
tamperproofing algorithm?
2/79
Last week’s lecture
1 Give an example of a software protection
scenario!
2 What does MATE stand for?
3 What is obfuscation?
4 What are the three kinds of obfuscating
transformations?
5 What is tamperproofing?
6 What two actions make up a
tamperproofing algorithm?
7 Give an example of a tamperproofing
algorithm!
2/79
When? Where? Why?
We now meet Wednesday
1
18:30
Π
We meet in Auditorium -13
2
(1st floor)
Please check the website for
3
important announcements:
www.cs.arizona.edu/˜collberg/
Teaching/bsuir/2014
3/79
Today’s lecture
Attack models
1
Constructing attack trees
2
Cracking binaries
3
4/79