Symmetric Algorithms

Symmetric algorithms were explained earlier in this chapter. In this section, we discuss some of the most popular symmetric algorithms. Some of these might no longer be commonly used because there are more secure alternatives.

Security professionals should be familiar with the following symmetric algorithms:

Image DES/3DES

Image AES

Image IDEA

Skipjack

Blowfish

Twofish

RC4/RC5/RC6

CAST

Digital Encryption Standard (DES) and Triple DES ...

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