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Protecting Your Password

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Presentation on theme: "Protecting Your Password"— Presentation transcript:

1 Protecting Your Password
By Patrick Mullaney

2 Protecting Your Password
Operating Systems Banks and Credit Card Personally

3 OS Password Protection
Windows XP Solaris 10 Mac OS X

4 Windows XP MD4 Message Digest algorithm 32-bit one-way hash
More information 32-bit one-way hash Zero length string 31d6cfe0d16ae931b73c59d7e0c089c0 Located in these files C:\WINDOWS\system32\config\SAM C:\WINDOWS\system32\config\SYSTEM

5 Solaris 10 MD5 Message Digest Algorithm
More information 128-bit Cryptographic Hash Function Zero length string d41d8cd98f00b204e ecf8427e Located in /etc/default/password

6 MD5 Algorithm

7 Mac OS X SHA1 and LM Hash Algorithm 104 Character String Hashed Twice
More information 104 Character String Hashed Twice First 64 LM Hash Last 40 SHA1 Example D47F3AF827A48F7DFA4F2C1F12D68CD608460EB13C5CA0C4CA F7FED95 01424F955C11F92EFEF0B79D7FA3FB6BE56A9F99 Located in /var/db/shadow/hash/

8 SHA1 Algorithm

9 Financial Password Protection
Banks and Credit Card Companies PNC Bank Security questions Personal Security Image and Caption 128-bit Secure Socket Layer (SSL) Discover Card

10 128-bit Secure Socket Layer

11 Personal Password Protection
Create Strong Password Safe Place to Store Password

12 Creating a Strong Password
Good Strategies Think of a sentence Use the first letter of each word Use the whole keyboard Use letters, numbers, and symbols Long password More than 8 characters

13 Creating a Strong Password
Strategies to Avoid Dictionary words Dictionary attacks Repeated characters 1111 or $$$$$ Keyboard sequence qwerty or asdf

14 Creating a Strong Password
Checking for a Strong Password Password checker

15 Safe Place to Store Password
Remember by Mnemonic Device Combination of characters that mean something Avoid Writing them down Programs that remember your password Telling others

16 References http://www.wikipedia.org/


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