Also, the more you use these same “rules” the easier it is going to be for your teacher to figure out what your rules are, and thus be able to read any future messages she intercepts. If your cypher is more complex though, you probably have to right down these “rules”. “We’ll add 3 to each letter in our message”. How do you and your class mate both know the rules of this cypher? In this example you probably meet at recess and talked them out. There is another problem with this cypher too. I would expect that the fictional teacher in this example would easily decode this message. This type of cypher has a bit of a downside in that it is way too easy to decrypt.
Doing this with the rest of the message “jimmy likes kim” becomes “mlppb olnhv nlp”. So to encrypt the first letter, “j”, I shift it 3 places in the alphabet and it becomes “m”. This simple cypher just shifts each letter by a specific number, so we’ll use a shift of 3. I need to make sure that if our teacher does intercept this message she cannot understand it, but the person I am sending it to can understand it.Ī sixth grader doing this might use the “Julius Caesar” cypher to encrypt that message. I know that if I write a note with this message on it, there is a good chance that the teacher is going to intercept that message before it gets to you. Say I want to send you the very sensitive information (for a sixth grader) that “Jimmy likes Kim”, but I want to make sure the teacher does not embarrass any of us by reading this message aloud in class. There are lots of different ways to encrypt a message, so let’s start by introducing the simplest form of encryption. Encryption does nothing to prevent unauthorized parties from intercepting your messages, but it is intended to make those messages unintelligible to any unauthorized parties who intercept your messages.
Encryption is the process of obscuring information in such a way that only the intended recipient can understand it. In this article I am going to explain the different type of encryption you can use in Exchange Online, and how best to employ each of them.īefore I start on the specifics of encryption in Exchange Online, we need to talk a bit about encryption itself. Whatever your reasons, your interest in keeping your data to yourself may be a factor inhibiting you from moving to Exchange Online. You don’t have to be a bad guy to want to keep you information private. Any information you put out there can be taken from your control at any time. You know it can get pretty darn harry out there. If you’re reading this, I’m going to go out on a limb and assume you’re familiar with the internet.
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