Chapter 9. Cryptography and Public Key Infrastructure
OBJECTIVES
This chapter covers the following TruSecure-specified objectives for the TICSA exam:
Identify key issues of cryptography and be able to explain basic cryptographic methods in use today.
Recognize the characteristics of encryption.
Identify encryption types.
Define the uses of hash functions.
Define the uses of digital signatures.
This chapter introduces you to the basic concepts behind encryption and the differences between symmetrical and asymmetrical encryption types. You learn what a hash function is and how it is used in encryption algorithms. We discuss how digital signatures are used to authenticate identity and ensure that the original content of a message has not been changed. ...
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