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:
DES/3DES
AES
IDEA
Skipjack
Blowfish
Twofish
RC4/RC5/RC6
CAST
Digital Encryption Standard (DES) and Triple DES ...
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