Join Mike Meyers for an in-depth discussion in this video Symmetric encryption, part of CompTIA Network+ (N10-006) Cert Prep: 4 Making TCP/IP Work.
- I don't think you'd meet too many people…out there anymore who don't appreciate…that sometimes data needs to be encrypted.…Now we do encryption all over the place…in the computer world,…everywhere from encrypting hard drives…to encrypting email, to encrypting video,…there are a lot of kinds of encryption going on.…Now what I want to do at this point in the game…is make sure we understand…what encryption really means.…So to do this,…let's go ahead and start off with a string of text.…So how about, I don't know,…ilovemikemyersnetworkplus.…
How does that look?…Now what we're gonna do here…is we're going to encrypt this text.…Now to encypt it I'm going to start off with…an oldie goldy,…and anyone who's ever messed with…a secret decoder ring…knows about the Caesar Cypher,…where basically we just take a ring…and there's the alphabet on one side…and the alphabet on the other…and we turn it and then that increments each value.…So what I'm going to do for starters here…is I'm gonna increment each position…in the alphabet for each letter by three.…
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Skill Level Intermediate
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1. TCP/IP Applications
2. Network Naming
3. Securing TCP/IP
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