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Encryption - Chapter12 Authentication&Encryption...

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Click to edit Master subtitle style  8/15/11 Chapter 12 Authentication & Encryption (More Safeguards)
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 8/15/11 Today’s Objectives Know how to select a good password. Know the importance of backups and how to  make good backups. Understand what encryption is and how it  works.
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 8/15/11 What is Authentication? Process to verify that information comes from  trusted source Passwords Pass Cards Biometrics
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 8/15/11 Safeguard Question Consider one of your non-VT passwords.   How long do you think it would take a  hacker to figure out that password? a. Seconds b. Minutes c. Hours Days
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 8/15/11 What Passwords  Should I Avoid? identical characters alphabetic or numeric series characters adjacent on keyboard anything obvious about you any word in the dictionary 
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 8/15/11 How Are Passwords Stolen? Steal encrypted passwords Guess password Brute Force Dictionary Cracks Hybrid Cracks Encrypt guess Compare encrypted guess to stolen encrypted 
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 8/15/11 Cracking Metrics 1 GHz Pentium Processor 1,000 to encrypt guessed password and  compare to target 1 million crack-n-compares per second
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 8/15/11 Brute Force Cracks Max Avg 4 lower (26^4) .457 sec .25 sec 6 lower (26^6) 5.15 min 2.57 min 8 lower (26^8) 58 hrs 29 hrs 8 lower & upper 619 days 309 days “ ” & # & sym 317 yrs 158.5 yr
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