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Understanding Cryptography and Its Role in Digital Communications

Network and Security
Free Course

Learn more about cryptography and cryptographic methods.

  • Duration

    1-2 Hours
  • Assessment

    Yes
  • Certification

    Yes
  • Publisher

    Khan Academy
Description Outcome Certification View course modules

Cryptography plays a vital role in modern digital communication systems. Cryptographic methods allow the encryption and decryption of messages sent across digital communication networks.

In this course the learner is first introduced to ancient ciphers and how they were used. The vital role of randomness in cryptographic methods is then explained and the learner is taken through step-by-step examples. The role of key scientists such as John von Neuman is also explained.

This course will be of great interest to all learners who would like to learn more about cryptography and the vital role it plays in today's digital communication networks.

Having completed this course learners will be able to: - Describe the use of ciphers; - Explain the role of randomness in encryption; - Explain the development of RSA encryption.

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 official Certification, which is a great way to share your achievement with the world. Your Alison Certification 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 Certification for completed Certificate courses:

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