1. Chuck Frank Northern Kentucky University
Applied Cryptography
Chuck Frank
Northern Kentucky University

2. CSC 382/682 Cryptography & Computer Security
CSC Upper level undergraduates
CSC 682 – MSCS students
Cryptography is approximately 1/3 of the course

3. Why Cryptography?
Powerful tool for keeping data and communications secure
Cryptography properly applied lessen security threats.

4. Goals
Students should be able to apply cryptography in the software they will develop.
Students should be able to apply cryptography in the systems they will manage.

5. Incorporating Cryptography into Programs
Reference:
Garns & Somerfield, Professional Java Security, Wrox Press
Java Cryptography Extension (JCE)

6. Java Cryptography Look at a variety of Java cryptography applications
Assign several small Java programs including a network application

7. Incorporating Cryptography into Computer Systems
Kaufman, Perlman, Speciner, Network Security, 2nd edition, Prentice Hall

8. Knowledge of Modern Cryptography
Secret Key Cryptography
Public Key Cryptography
Hashing and Message Digests
Protocols

9. Secret Key Cryptography
What is it?
Basic understanding of algorithms
DES
Triple-DES
Rijndael

10. Public Key Cryptography
What is it?
Algorithms
RSA
Diffie Hellman

11. Hashes and Message Digest
Why is useful?
Basic understanding of algorithms
MD5
SHA-1
Tripwire

12. Protocols SSL/TSL IPSec Used for e-commerce
Public key for key exchange
Secret key for encryption
IPSec
Use for VPNs

13. Mathematical Background
Student have had 10 hours of calculus & discrete math
Cover sufficient number theory
Modular arithmetic & Euler’s theorem
To understand RSA
Generation of probable primes

14. Not Covered Classical, yet obsolete, ciphers History of cryptography
Caesar, Vigenére
History of cryptography