4.3
56 ratings
12 reviews

#### 100% online

Start instantly and learn at your own schedule.

Reset deadlines in accordance to your schedule.

#### Approx. 7 hours to complete

Suggested: 2-4 hours/week...

#### English

Subtitles: English

#### 100% online

Start instantly and learn at your own schedule.

Reset deadlines in accordance to your schedule.

#### Approx. 7 hours to complete

Suggested: 2-4 hours/week...

#### English

Subtitles: English

### Syllabus - What you will learn from this course

Week
1
2 hours to complete

## Cryptography Overview

This module defines the technical terms in cryptography and introduce Alice, Bob, and Eve. To study the attacker Eve's perspective, we will describe Kerckhoff's Principle ("the attacker knows the system"), which defines the scope of the attacker knowledge (what is secret vs. what the attacker can know). We will also describe Security by Obscurity, which contrasts Kerckhoff's Principle. ...
8 videos (Total 19 min), 1 reading, 2 quizzes
8 videos
Module Objectives1m
Alice, Bob, and Eve1m
Cryptography Terminology2m
Threat Model and the Attacker Knowledge1m
Kerckhoff's Principle3m
Security by Obscurity and Steganography, Part 12m
Security by Obscurity and Steganography, Part 21m
Slides for Cryptography Overview20m
1 practice exercise
Kerckhoff's Principle and Security by Obscurity30m
Week
2
2 hours to complete

## Information Entropy

This module studies information entropy to quantify randomness. Information entropy can be used to measure the strength of the key or the secret information that determines the security of a cryptosystem against an attacker who does not know the random key. ...
6 videos (Total 44 min), 1 reading, 2 quizzes
6 videos
Deterministic vs. Random4m
Information Entropy5m
Entropy: Uniform Distribution Case9m
Entropy: General Distribution Case13m
Entropy Recap9m
Slides for Information Entropy20m
2 practice exercises
Throwing a Dice15m
Entropy: Balls in a Bin35m
Week
3
1 hour to complete

## Brute-Force Attack and Cryptanalysis

This module studies the attacker view whose objective is to learn the key and break the cryptographic protection using the key. First, we will define brute force attack and describe how to quantify the attacker effort for brute force attack. Next, we will contrast cryptanalysis and brute force attack. Lastly, we will discuss about perfect secrecy, which is immune to cryptanalysis and is a strong notion of security derived from information theory. ...
4 videos (Total 13 min), 1 reading, 1 quiz
4 videos
Brute Force Attack3m
Cryptanalysis5m
Perfect Secrecy and One-Time Pad3m
Lecture Slides for Brute Force and Cryptanalysis20m
1 practice exercise
Brute-Force Attack, Cryptanalysis, and One-Time Pad30m
Week
4
2 hours to complete

## Computational Security and Side-Channel Attack

This module studies cryptography from the practical point of view. We will first define computational security, which relies on the fact that real world attackers are computationally limited unlike information theoretic security, e.g., one-time pad. We will then survey side channel attacks and unintentional information leakage from the physical implementations of cryptosystems. ...
3 videos (Total 12 min), 2 readings
3 videos
Computational Security: Attacker's Computational Bound6m
Side-Channel Attack4m
Lecture Slides for Computational Security and Side Channel Attacks20m
Reading on physical side-channel attacks10m
4.3
12 Reviews

## 83%

got a tangible career benefit from this course

### Top Reviews

By RSNov 14th 2018

The course mainly covers criteria for security. I need more of cryptography in it. Its not completely useful.

By SDJan 14th 2018

This is fabulous course that i found, great assignment and questions make this course course worth full.

## Instructor

### Sang-Yoon Chang

Assistant Professor
Computer Science

The University of Colorado is a recognized leader in higher education on the national and global stage. We collaborate to meet the diverse needs of our students and communities. We promote innovation, encourage discovery and support the extension of knowledge in ways unique to the state of Colorado and beyond....

## About the Applied Cryptography Specialization

This specialization is intended for the learners interested in or already pursuing a career in computer security or other cybersecurity-related fields. Through four courses, the learners will cover the security of information systems, information entropy, classical cryptographic algorithms, symmetric cryptography, asymmetric/public-key cryptography, hash functions, message authentication codes, digital signatures, key management and distribution, and other fundamental cryptographic primitives and protocols....

## Frequently Asked Questions

• Once you enroll for a Certificate, you’ll have access to all videos, quizzes, and programming assignments (if applicable). Peer review assignments can only be submitted and reviewed once your session has begun. If you choose to explore the course without purchasing, you may not be able to access certain assignments.