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• Greeks were the first to use ciphers.
• The use of a user name and password provides the most common form of authentication. You enter your name and password when prompted by the computer. The computer checks the pair against a secure encrypted file to confirm.If either the name or the password does not match, then you are not allowed further access.
• Brute Force
• Brute Force

1. 1.
2. 2. Agenda<br />Quiz Results<br />Please Ask Questions Anytime<br />What is Encryption?<br />What is a Password?<br />Breaking Passwords<br />How long to break passwords?<br />Lesson from Mistakes<br />What can you do?<br />
4. 4. What is Encryption?<br />
5. 5. Encryption Example<br />I AM SPARTA<br />42 11 23 34 53 11 24 44 11 <br />
6. 6. Two way Encryption<br />
7. 7. Why Encrypt?<br />
8. 8. One way Encryption<br />I AM SPARTA<br />12 11 23 31 23 11 21 13 11 <br />
9. 9. What is a Password?<br />
10. 10. What is a Password?<br />
11. 11. Sample Password File<br />
12. 12. Breaking Passwords – Only Digits<br />
13. 13. 1<br />10 x 10 x 10 = 1000<br />000, 001, 002, 003<br />….<br />999<br />How many combinations are there?<br />
14. 14. How many combinations are there?<br />10 Digits<br />
15. 15. Breaking Passwords – Upper Case Letters, Lower Case Letter, Digits & Symbols<br />
16. 16. 1<br />Upper Case = 26<br />Lower Case = 26<br />Digits = 10<br />Symbols = 34<br />Total = 96<br />How many combinations are there?<br />
17. 17. 1<br />96 = 96<br />96 x 96 = 9,216<br />96 x 96 x 96 = 884,736<br />How many combinations are there?<br />
18. 18. How many combinations are there?<br />96 Characters - Mixed Alpha, Digits & Symbols<br />
19. 19. Class A - Fast PC, Dual Processor PC<br />10,000,000 Passwords/sec<br />
20. 20. Class B – Workstation, Multiple PC’s<br />100,000,000 Passwords/sec<br />
21. 21. Class C – Supercomputer<br />1,000,000,000 Passwords/sec<br />
22. 22. How long to break passwords?<br />10 Digits<br />
23. 23. How long to break passwords?<br />96 Characters - Mixed Alpha, Digits & Symbols<br />
24. 24. Class Z – Wrench<br />
25. 25. How long to break passwords?<br />
26. 26. Lessons from Mistakes<br />A fool never learns from his mistakes. <br />A smart man learns from his mistakes. <br />A wise man learns from the mistakes of others.<br />
27. 27. Rockyou.com rocked by SQL flaw<br />Rockyou.com rocked by SQL flaw<br />32 million accounts were stolen<br />
28. 28. Password Length Distribution<br />Must be at least 5<br />50% less than 8.<br />30% less than 7.<br />
29. 29. Character Type Distribution<br />60% used single type & less than 4% used symbols<br />