This course is part of the Fundamentals of Computer Network Security Specialization

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82 ratings

Edward Chow

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Fundamentals of Computer Network Security SpecializationUniversity of Colorado System

About this Course

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In this MOOC, we will learn the basic concepts and principles of crytography, apply basic cryptoanalysis to decrypt messages encrypted with mono-alphabetic substitution cipher, and discuss the strongest encryption technique of the one-time-pad and related quantum key distribution systems.  We will also learn the efficient symmetric key cryptography algorithms for encrypting data, discuss the DES and AES standards, study the criteria for selecting AES standard, present the block cipher operating modes and discuss how they can prevent and detect the block swapping attacks,  and examine how to defend against replay attacks. We will learn the Diffie-Hellman Symmetric Key Exchange Protocol to generate a symmetric key for two parties to communicate over insecure channel. We will learn  the modular arithmetic and the Euler Totient Theorem to appreciate the RSA Asymmetric Crypto Algorithm,  and use OpenSSL utility to realize the basic operations of RSA Crypto Algorithm. Armed with these knowledge, we learn how to use PHP  Crypto API to write secure programs for encrypting and decrypting documents  and for signing and verify documents. We then apply these techniques to enhance the registration process of a web site which ensures the account created is actually requested by the owner of the email account.

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Course 2 of 4 in the

Fundamentals of Computer Network Security Specialization

Intermediate Level

Approx. 16 hours to complete

English

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Flexible deadlines

Reset deadlines in accordance to your schedule.

Shareable Certificate

Earn a Certificate upon completion

100% online

Start instantly and learn at your own schedule.

Course 2 of 4 in the

Fundamentals of Computer Network Security Specialization

Intermediate Level

Approx. 16 hours to complete

English

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Instructor

Instructor rating

4.7/5 (10 Ratings)

Edward Chow

Offered by

University of Colorado System

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Syllabus - What you will learn from this course

Week1

Week 1

4 hours to complete

Basic Cryptography

4 hours to complete

6 videos (Total 50 min), 5 readings, 1 quiz

6 videos

Course Overview3mBasic Cryptography10mKerckhoff's Principle9mCryptoAnalysis of Monoalphabetic Substitution Cipher13mColumnar Transposition Ciphers4mOne-Time Pad & Quantum Key Distribution10m

5 readings

Introduction to cryptology, from PGP Corporation30mWhat makes a cryptographic protocol strong?30mBasic Cryptoanalysis. Three Basic Variations of Cryptoanalysis or Cipher Attack:30mColumnar transposition Ciphers30mOne time pad encryption30m

1 practice exercise

Exam 2.130m

Week2

Week 2

6 hours to complete

Symmetric Key Cryptography

6 hours to complete

6 videos (Total 55 min), 5 readings, 2 quizzes

6 videos

Symmetric Key Algorithm8mAdvanced Encryption Standard9mAES Expansion/Schedule4mAES Selection Criteria13mDealing with Block Swapping and Replay Attacks7mBlock Cipher Mode of Operation11m

5 readings

Symmetric Key Encryption and DES15mAES: The Advanced Encryption Standard by Avi Kak2hSection 8.8 Key Expansion Algorithm from Prof. Section 8.8 Key Expansion Algorithm Lecture Note15mReport on the Development of the Advanced Encryption Standard (AES)15mBlock cipher mode of operation15m

1 practice exercise

Exam 2.2. Symmetric Key Algorithm30m

Week3

Week 3

4 hours to complete

Asymmetric Key Cryptography

4 hours to complete

5 videos (Total 58 min), 5 readings, 2 quizzes

Week4

Week 4

2 hours to complete

Develop Secure Programs with Crypto API

2 hours to complete

3 videos (Total 45 min), 3 readings, 1 quiz

Reviews

4.5

14 reviews

5 stars
70.73%
4 stars
14.63%
3 stars
8.53%
2 stars
2.43%
1 star
3.65%

TOP REVIEWS FROM BASIC CRYPTOGRAPHY AND PROGRAMMING WITH CRYPTO API

by MNMay 29, 2020

Good, I gained knowledge on which m did not have knowledge.

by LBApr 1, 2018

The course content is excellent. It would be much better if some errors (like misspelled words, improper capitalization etc) would be corrected

by NHSep 9, 2019

This Course is good but difficult for learner. To provide better knowledge as expert level course should be extended.

View all reviews

About the Fundamentals of Computer Network Security Specialization

This specialization in intended for IT professionals, computer programmers, managers, IT security professionals who like to move up ladder, who are seeking to develop network system security skills. Through four courses, we will cover the Design and Analyze Secure Networked Systems, Develop Secure Programs with Basic Cryptography and Crypto API, Hacking and Patching Web Applications, Perform Penetration Testing, and Secure Networked Systems with Firewall and IDS, which will prepare you to perform tasks as Cyber Security Engineer, IT Security Analyst, and Cyber Security Analyst.

The learning outcomes of this specialization include: you should be able to create public/private keys, certificate requests, install/sign/verify them for web server and client authentication, secure emails, and code signing. you should be able to write secure web apps with Crypto API to implement the confidentiality, integrity, and availability basic security services. you should be able to hack web applications with vulnerabilities and patch them. you should be able to apply penetration testing tool to exploit vulnerable systems. you should be able to crack passwords given the hashes in password file using AWS P2 GPU. you should be able to configure firewall and IDS for secure network systems you should be able to specify effective security policies and implement efficient enforcement procedures by applying security design principles for securing network systems.

Fundamentals of Computer Network Security

Frequently Asked Questions

When will I have access to the lectures and assignments?
Access to lectures and assignments depends on your type of enrollment. If you take a course in audit mode, you will be able to see most course materials for free. To access graded assignments and to earn a Certificate, you will need to purchase the Certificate experience, during or after your audit. If you don't see the audit option:
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The course may offer 'Full Course, No Certificate' instead. This option lets you see all course materials, submit required assessments, and get a final grade. This also means that you will not be able to purchase a Certificate experience.
What will I get if I subscribe to this Specialization?
When you enroll in the course, you get access to all of the courses in the Specialization, and you earn a certificate when you complete the work. Your electronic Certificate will be added to your Accomplishments page - from there, you can print your Certificate or add it to your LinkedIn profile. If you only want to read and view the course content, you can audit the course for free.
Is financial aid available?
Yes. In select learning programs, you can apply for financial aid or a scholarship if you can’t afford the enrollment fee. If fin aid or scholarship is available for your learning program selection, you’ll find a link to apply on the description page.

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Basic Cryptography and Programming with Crypto API

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