Course: An Introduction to Cryptography

Congratulations! You have come to the end of Lesson 5. In this lesson you learned about the interaction between cryptography and artificial intelligence. You should now be able to: describe …

What is Artificial Intelligence? Artificial Intelligence (AI) refers to the ability of machines or computer systems to perform tasks that typically require human intelligence. This includes things like understanding language, …

In the last lesson we learned about a more advanced cryptographic system called RSA which is extensively used. In this lesson we will learn how cryptography and artificial intelligence relate …

The Caesar cipher is a form of substitution cipher, so called because each letter is substituted for another. There are other types of cipher which we will focus on a …

A cipher is a method used to encrypt or encode a message in order to make it unreadable by unauthorised parties. Ciphers have been used throughout history to protect sensitive …

Rivest-Shamir-Adleman (RSA) encryption is a popular and widely used public-key cryptography algorithm named after its inventors Ron Rivest, Adi Shamir, and Leonard Adleman. It’s used for secure communication over the …

In last activity we learned about what cryptography is and what it is used for. In this activity we will introduce some historic ciphers which are great fun to learn …

In this activity we have looked at what cryptography is and the three main reasons it is used in modern life. To give you an idea of what cryptography looks …

In the last step, we introduced that there are three ways in which cryptography contributes to protecting data. Here we look at these in more detail: Privacy: cryptography helps ensure …

The two types of modern cryptography There are two main types of modern cryptography; private key cryptography and public key cryptography. We will look at each of them in more …

In 2021, Facebook reported that over 100 billion messages were sent on its platforms every day, including Facebook Messenger, WhatsApp, and Instagram Direct. All of these messages are private between …

In this activity, we will introduce what cryptography is and how it plays a massive role in modern day life. You will learn that cryptography is not a new concept, …

As you have learned, cryptography is the practice of securing information by converting it into a code that is unreadable without the proper decryption key. Cryptography has been used throughout …

Last week you learned about some of the history of cryptography and how to encrypt and decrypt messages using some of the oldest cryptographic techniques. Whilst these techniques are interesting …

For those of you learning with Click Start, do go back to the Click Start page and look up the other courses on offer. If you are interested in cryptography …