Uploaded by Mary Zando

Tips and Tricks

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Tips and Tricks (A bunch I learned from /u/AmethystWind)
 Learn what Symmetric Encryption is and you'll know what Asymmetric Encryption is(n't).
o DES, 3DES, IDEA, AES, Blowfish, Twofish, RC4
o RC4 is the only encryption standard that is a stream cipher. Everything else is a block
cipher.
o Elliptical Curve Cryptography (ECC) is used on mobile devices.
 Hashing algorithms increase in size alphabetically.
o MD-5 & NTLM - 128-bit
o RIPEMD & SHA-1 - 160-bit
o SHA-2 - 256-bit
 Please Do Not Throw Sausage Pizza Away - Mnemonic for OSI Model (more of a Network+
thing)
o Physical, Datalink, Network, Transport, Session, Presentation, Application
 PICERL (pic-earl) - How I memorized the incident response steps
o Preparation, Identification, Containment, Eradication, Recovery, Lessons Learned
 MEMORIZE THOSE PORTS. Just brute force them into your brain. Use flash cards.
Memorize the port numbers first then whether its TCP, UDP, or both.
 Don't just memorize what the acronym stands for, though it will help if you do. Know what it
does and how it is used.
 Read the MCQs carefully. Look for key words. Process of elimination.
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