Course: TIA.M.SRI18.1 Securitatea rețelelor informatice | ELSE

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      Cybersecurity Essentials

      All about defending computers, servers, mobile devices, electronic systems, networks, and data from malicious attacks.

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      A CISCO-based course on cybersecutiry essentials

      Cybersecurity is the practice of protecting systems, networks, and programs from digital attacks. These cyberattacks are usually aimed at accessing, changing, or destroying sensitive information; extorting money from users; or interrupting normal business processes.
      Implementing effective cybersecurity measures is particularly challenging today because there are more devices than people, and attackers are becoming more innovative.

    • Fișa cursului File
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    • The Complete Cyber Security Course Book
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    • Curs Cyber security Station X Page
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    • 1 2 3 4 5 6 7 8 9 10 11 12
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      Chapter 4: The Art of Protecting Secrets

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      Welcome to The Art of Protecting Secrets

          The principles of cryptology explain how modern day protocols and algorithms secure communications. Cryptology is the science of making and breaking secret codes. The development and use of codes is cryptography. Studying and breaking codes is cryptanalysis. Society has used cryptography for centuries to protect secret documents. For example, Julius Caesar used a simple alphabetic cipher to encrypt messages to his generals in the field. His generals would have knowledge of the cipher key required to decrypt the messages. Today, modern day cryptographic methods ensure secure communications.
           Access control is, as its name suggests, a way of controlling access to a building, a room, a system, a database, a file, and information. Organizations employ a variety of access control techniques to protect confidentiality. This chapter will examine the four steps in the access control process: 1) identification, 2) authentication, 3) authorization, and 4) accountability. In addition, the chapter describes the different access control models and access control types.
           The chapter concludes by discussing the various ways users mask data. Data obfuscation and steganography are two techniques used to accomplish data masking.

    • Chapters 4 Laboratories URL
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    • 4.3.2.3 Lab – Using Steganography File
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    • 4.3.3.3 Packet Tracer - Configuring VPN Transport Mode File
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    • 4.3.3.4 Packet Tracer - Configuring VPN Tunnel Mode File
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    • Chapter 4 Laboratories Submission Assignment
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◄Section 7
►Section 9