Pseudo-random Generators | Block Ciphers | Free Online Course | Alison
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Cryptography: Pseudo-Random Generators and Block Ciphers

Learn about the theoretical instantiations of Pseudo-Random Generators and Block Ciphers, in this free online course.

IT
Free Course
In this free online course, you will learn about the theoretical instantiations of Pseudo-Random Generators and the practical construction of Block Ciphers. You will also learn about the Chosen Ciphertext Attack (CCA) Security and how to approach designing an efficient CCA-Secure Scheme. This course will benefit anyone who wants to improve their understanding of how Pseudo-Random Generators work to improve the security of their computer systems.
  • Duration

    5-6 Hours
  • Assessment

    Yes
  • Certification

    Yes
  • Responsive

    Yes
  • Publisher

    NPTEL

Description

Modules

Outcome

Certification

View course modules

Description

This free online course highlights the instantiations of Pseudo-Random Generators (PRGs) and the practical construction of Block Ciphers. You will learn about the concept of one-way functions, how to design PRGs with one-bit and arbitrary expansions, the recent developments in the area of practical instantiations of PRGs, constructions based on Linear Feedback Shift Register(LFSR), Software ciphers and more. The variants of Pseudo-Random Generators will be discussed in the first section of the course.

Next, you will gain insight into a very important building block for the Symmetric-Key Cryptosystem namely Pseudo-Random Functions (PRFs). You will see how to construct Pseudo-Random Generators from Pseudo-Random Functions. Then, you will learn about designing efficient Chosen Plaintext Attack (CPA) Secure Ciphers from Pseudo-Random Functions. You will see some drawbacks of the CPA-Secure Cipher, and you will be shown how to design efficient CPA-Secure Ciphers from Pseudo-Random Permutations via modes of operations; like the Electronic Code Book (ECB) mode, Counter (CTR) mode, and more.

Thereafter, you will learn about the construction of provably-secure Pseudo-Random Functions from provably-secure Pseudo-Random Generators. Lastly, you will gain insight into the practical construction of Block Ciphers and an introduction to the Chosen Ciphertext Attack (CCA) Security Model. You will also see an overview of the Data Encryption Standard(DES) and the Advanced Encryption Standard(AES). This course is a great starting point for anyone who wants to learn about the working principles of Pseudo-Random Generators and Block Ciphers, to improve the security of their computer systems and data. Why wait, start this course today!

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Learning Outcomes

Upon successful completion of this course, you should be able to:


  • Discuss the theoretical instantiations of Pseudo-Random Generators 
  • Discuss the practical instantiations of Pseudo-Random Generators 
  • Outline the limitations of Stream Ciphers
  • Identify the variants of Pseudo-Random Functions
  • Explain how to construct CPA-Secure Ciphers using Pseudo-Random Functions
  • Describe how to construct CPA-Secure Ciphers from Pseudo-Random Functions
  • Explain the various modes of constructing CPA-Secure Ciphers
  • Discuss the theoretical and practical constructions of Block Ciphers

Certification

All Alison courses are free to enrol, study and complete. To successfully complete this Certificate course and become an Alison Graduate, you need to achieve 80% or higher in each course assessment. Once you have completed this Certificate course, you have the option to acquire an official Certificate, which is a great way to share your achievement with the world. Your Alison Certificate is:

Ideal for sharing with potential employers - include it in your CV, professional social media profiles and job applications
An indication of your commitment to continuously learn, upskill and achieve high results
An incentive for you to continue empowering yourself through lifelong learning

Alison offers 3 types of Certificates for completed Certificate courses:

Digital Certificate - a downloadable Certificate in PDF format, immediately available to you when you complete your purchase
Certificate - a physical version of your officially branded and security-marked Certificate, posted to you with FREE shipping
Framed Certificate - a physical version of your officially branded and security-marked Certificate in a stylish frame, posted to you with FREE shipping

All Certificates are available to purchase through the Alison Shop. For more information on purchasing Alison Certificates, please visit our FAQs. If you decide not to purchase your Alison Certificate, you can still demonstrate your achievement by sharing your Learner Record or Learner Achievement Verification, both of which are accessible from your Dashboard. For more details on our Certificate pricing, please visit our Pricing Page.

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