# Top 5 Courses to Learn Cryptography In Depth in 2023 - Best of Lot

In the most basic of terms, cryptography is the technique of securing information by using codes so that only the authorized person is able to access the information. The word cryptography is made up of "crypt", which means 'hidden', and "graphy". which means 'writing.' There are a lot of different techniques in cryptography that make use of mathematical concepts and a set of rule-based calculations known as algorithms. These are used to convert messages in different ways so that it remains safe and secure. There are different algorithms for cryptographic key generation, digital signature, verification to protect data privacy, web browsing on the internet, and protect confidential transactions.

In most cases of cryptography, ordinary plain text is converted to ciphertext. The ciphertext is a certain type of text that only the intended receiver of the text can decode. This process is also known as encryption. The process of converting ciphertext back to plain text is known as decryption.

Cryptography offers a lot of features like confidentiality, integrity, non-repudiation, and authentication. Cryptography is generally divided into three different types. These are Symmetric Key Cryptography, Hash Functions, and Asymmetric Key Cryptography.

## 5 Best Online Courses to Learn Cryptography in 2023

We have done the hard work for you and compiled a list of the 5 Best Courses to Learn Cryptography. Keep reading to find out more.

### 1. Cryptography and Hashing Fundamentals in Python and Java [Udemy]

This is a wonderful course that will enable you to understand the basics of private key encryption systems. You will also learn about a lot of important things like frequency analysis, Kasiski algorithms, Caeser cipher, and Vigenere cipher.

Course Duration: 14 hours
Course Rating: 4.7 stars out of 5
Course Instructor: Holczer Balazs
Course Price: \$56

### 2. Cryptography 1 [Coursera]

Through this course, you will be able to understand the inner workings of cryptographic systems and also learn how to practically use them in real-world situations. You will start the course by taking part in a detailed analysis of how two people who have a shared secret key can communicate securely.

You will also learn to analyze the different types of deployed protocols and analyze the mistakes in existing systems. This course is offered by the famous Stanford University, which makes the certificate of completion that you will receive all the more valuable. The instructor of this course is Dan Boneh, who is a Computer Science professor at Stanford.

Course Duration: 23 hours
Course Rating: 4.8 stars out of 5
Course Instructor: Dan Boneh
Course Price: \$50

By the way, If you are planning to join multiple Coursera courses or specializations, then consider taking a Coursera Plus subscription which provides you unlimited access to their most popular courses, specialization, professional certificate, and guided projects. It costs around \$399/ per year but is worth it because you get access to more than 7000+ courses and projects, and you can also get unlimited certificates.

### 3. Unlocking Information Security 1: From Cryptography to Buffer Overflows [edX]

This is a great course that will teach you all you need to know about cyber security, cyber-attacks, and even cyber warfare. This course is the first part of the broader Unlocking Information Security program offered by Tel Aviv University. The course will help you learn the basic terminology and concepts in the field of information security.

Through this course, you will also explore the different types of vulnerabilities through many examples of design flaws, implementation bugs, and social engineering.

Course Duration: 5 weeks
Course Rating: 4.6 stars out of 5
Course Instructors: Avishai Wool and Dan Gittik
Course Price: \$150

### 4. Learning Cryptography and Network Security [LinkedIn Learning]

You can use this course to get a basic understanding of cryptography, which is fundamental to keeping your networks, systems, and data security. The instructor of this course is Lisa Bock, who is an expert security ambassador with a broad range of skills and knowledge.

Through this course, you will learn the historical and current uses of encryption, including techniques like symmetric encryption and asymmetric encryption. You will also learn about different stuff like algorithms and hashing. The course will teach you about the different practical ways you can apply cryptography to ensure data security and integrity.

Course Duration: 3 hours
Course Rating: 4.7 stars out of 5
Course Instructor: Lisa Bock
Course Price: \$12 per month for an annual subscription

By the way, you would need a LinkedIn Learning membership to watch this course which costs around \$29.99 per month but you can also watch this course for FREE by taking their 1-month-free-trail which is a great way to explore their 17000+ online courses on the latest technology.

### 5. Cryptography: The Big Picture [Pluralsight]

You can use this course to learn about the basics of cryptographic algorithms and also learn how to select the correct algorithm to encrypt and protect your data. You will also get a broader understanding of how cryptography fits into an overall security strategy for any business or government entity.

You will start the course by learning about the history of cryptography and the different types of cryptographic algorithms. By the end of the course, you will be able to use cryptography to protect your information.

Course Duration: 2 hours
Course Rating: 4.5 stars out of 5
Course Instructor: Matt Glass
Course Price: \$140 per year for the Premium plan

Though, you would need a Pluralsight membership to join this course which costs around \$29 per month or \$299 per year (14% discount). I highly recommend this subscription to all programmers as it provides instant access to more than 7000+ online courses to learn any tech skill. Alternatively, you can also use their 10-day-free-pass to watch this course for FREE

1. What is cryptography in simple words?
In the most basic of terms, cryptography is the technique of securing information by using codes so that only the authorized person is able to access the information. The word cryptography is made up of "crypt", which means 'hidden', and "graphy". which means 'writing.'

2. What is cryptography used for?
In most cases of cryptography, ordinary plain text is converted to ciphertext. The ciphertext is a certain type of text that only the intended receiver of the text can decode. This process is also known as encryption. The process of converting ciphertext back to plain text is known as decryption.

3. What are the different types of cryptography?
Cryptography is generally divided into three different types. These are Symmetric Key Cryptography, Hash Functions, and Asymmetric Key Cryptography.

### Conclusion

This is it. The best of the best. The cream of the crop. As you can see, we have made your job a lot easier. These are the best course that you can use to learn about cryptography. The only thing you need to do is pick a course from the list and start learning.

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