June 2011
Beginner
372 pages
9h 54m
English
Content preview from Microsoft® Windows® Security: EssentialsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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The Essentials and Beyond
In this chapter, you learned about different methods of encrypting data. Symmetric encryption uses a single key to encrypt and decrypt data. Asymmetric encryption uses two keys (a public key and a private key) to encrypt and decrypt data. Asymmetric encryption is about 1,000 times slower than symmetric encryption, and it’s typically used only to encrypt and decrypt symmetric keys. AES is a strong, efficient symmetric encryption used in many situations including in Kerberos and BitLocker. Hashing provides one-way encryption and is used for integrity. MD5 and SHA-1 are two common hashing algorithms. You can secure email by encrypting it and digitally signing it. Both require the use of certificates to publically share ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.