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wwbl29

Computer Science

Description

As you study this section, answer the following questions:

  • How do public keys differ from private keys? What is the relationship between the two?
  • For which type of environment is asymmetric cryptography best suited?
  • Why does asymmetric encryption require fewer keys than symmetric encryption?
  • What services are provided by the cryptographic service provider (CSP)?
  • What is the main use for the Diffie-Hellman protocol?

This section covers the following TestOut Security Pro certification exam objectives:

  • 8.1 Protect and Maintain the Integrity of Data Files
    • Implement encryption technologies
  • 8.2 Protect Data Transmissions Across Open, Public Networks
    • Encrypt data communications
    • Implement secure protocols
    • Remove unsecure protocols

This section covers the following Security+ certification exam objectives:

6.1 Compare and contrast basic concepts of cryptography.

  • Modes of operation
  • Asymmetric algorithms
  • Elliptic curve
  • Weak/deprecated algorithms
  • Key exchange
  • Digital signatures
  • Key strength
  • Session keys
  • Ephemeral key
  • Secret algorithm
  • Data-in-transit
  • Data-at-rest
  • Data-in-use
  • Perfect forward secrecy
  • Common use cases
    • Supporting confidentiality
    • Supporting integrity
    • Supporting authentication
    • Supporting non-repudiation
    • Resource vs. security constraints

6.2 Explain cryptography algorithms and their basic characteristics.

  • Asymmetric algorithms
    • RSA
    • DSA
    • Diffie-Hellman
      • Groups
      • DHE
      • ECDHE
    • Elliptic curve
    • PGP/GPG

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