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CEH® Certified Ethical Hacker Study Guide by Kimberly Graves

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Chapter 14. Cryptography

CEH EXAM OBJECTIVES COVERED IN THIS CHAPTER:

  • Overview of cryptography and encryption techniques

  • Describe how public and private keys are generated

  • Overview of MD5, SHA, RC4, RC5, Blowfish algorithms

Cryptography

Cryptography and Encryption Techniques

Encryption can be used to encrypt data while it is in transit or while it's stored on a hard drive. Cryptography is the study of protecting information by mathematically scrambling the data so it cannot be deciphered without knowledge of the mathematical formula used to encrypt it. This mathematical formula is known as the encryption algorithm. Cryptography is composed of two words: crypt (meaning ...

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