Cyber Security Advance | Cryptography and Data Protection by Diljeet Singh | Learn Smarter
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Cryptography and Data Protection

Advanced concepts in cryptography focus on the role of encryption in securing data across various states and the implementation of key management practices. Different encryption techniques, including symmetric and asymmetric methods, along with hash functions and digital signatures, are explored. The chapter emphasizes the importance of strong key management and awareness of common cryptographic attacks to reinforce security measures.

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Sections

  • 1

    Types Of Cryptography

    This section introduces the various types of cryptography, focusing on symmetric encryption, asymmetric encryption, hashing, and digital signatures.

    Learning Practice

  • 1.1

    Symmetric

    This section introduces symmetric encryption, highlighting its reliance on a single key for both encryption and decryption.

    Learning Practice

  • 1.2

    Asymmetric

    This section details asymmetric cryptography, emphasizing the use of public and private keys for data encryption and decryption.

    Learning Practice

  • 1.3

    Hash Functions

    This section introduces hashing as a one-way transformation crucial for data integrity and is distinct from encryption.

    Learning Practice

  • 1.4

    Digital Signatures

    Digital signatures ensure the authenticity and integrity of a message by using cryptographic techniques.

    Learning Practice

  • 2

    Encryption In Practice

    This section focuses on encryption techniques applicable to data at rest, in transit, and in use, highlighting tools and methodologies for securing sensitive information.

    Learning Practice

  • 2.1

    Data At Rest

    This section highlights the importance of encrypting data stored in databases and storage systems to protect sensitive information.

    Learning Practice

  • 2.2

    Data In Transit

    The section discusses the importance of securing data during transmission using encryption protocols such as SSL/TLS and VPNs.

    Learning Practice

  • 2.3

    Data In Use

    This section explores methods for securing data during active use, focusing on concepts like encrypted computation and homomorphic encryption.

    Learning Practice

  • 3

    Digital Signatures And Certificates

    This section covers the mechanisms of digital signatures and certificates in confirming the integrity and authenticity of digital communications.

    Learning Practice

  • 4

    Key Management

    The Key Management section explains the lifecycle of cryptographic keys and the essential tools and practices for managing them securely.

    Learning Practice

  • 4.1

    Key Lifecycle

    The Key Lifecycle involves the stages through which cryptographic keys are managed and maintained to ensure data security.

    Learning Practice

  • 4.2

    Tools/concepts

    This section introduces key tools and concepts used in cryptography, particularly focusing on key management practices and their significance.

    Learning Practice

  • 5

    Common Cryptographic Attacks

    This section outlines several common types of cryptographic attacks, emphasizing their characteristics and mitigations.

    Learning Practice

  • 5.1

    Brute Force

    Brute force attacks involve systematically checking all possible key combinations to gain unauthorized access.

    Learning Practice

  • 5.2

    Dictionary Attack

    A dictionary attack is a method used in cybersecurity to breach passwords by systematically entering every word in a predefined list.

    Learning Practice

  • 5.3

    Man-In-The-Middle

    The Man-in-the-Middle (MitM) attack is a significant security threat where an attacker intercepts communication between two parties, compromising the confidentiality and integrity of the communication.

    Learning Practice

  • 5.4

    Replay Attack

    A replay attack involves intercepting and reusing valid data communications to impersonate a user or system.

    Learning Practice

  • 5.5

    Side-Channel Attack

    This section discusses side-channel attacks that exploit information leaked through physical channels rather than cracking encryption directly.

    Learning Practice

References

Chapter 8_ Cryptography and Data Protection.pdf

Class Notes

Memorization

What we have learnt

  • Cryptography ensures confid...
  • Symmetric encryption is fas...
  • Digital signatures and cert...

Revision Tests