Cryptography Essentials in C#

Explore the .NET Core options to encrypt and decrypt data

Description

In this course you will explore the .NET Core options to encrypt and decrypt data. After a brief history of cryptography, you will learn the difference between symmetric and asymmetric encryption and you will understand the details of AES. Next the .NET Core classes that are used to perform symmetric encryption are covered and used in the lab. Then you will learn the concepts behind asymmetric encryption and the details of RSA. Also the .NET Core classes that are needed to do asymmetric encryption are examined and used in the lab. Then you will learn what hashing is and how you can digitally sign documents. You'll also experience the use of certificates and how to use them in .NET Core.

This training uses language features until C# 10.0 and can be used with .NET Framework and .NET Core.

Learning Goals

• Recognize the importance of strong encryption and signing [Remember]
• Identify the different ways to break encryption [Remember]
• Describe the difference between symmetric and asymmetric encryption [Understand]
• Study the mathematical background of encryption and digital signing algorithms [Remember]
• Describe the role of certificates to make encryption and signing secure [Understand]
• Use encryption, decryption, signing, verification in .NET. [Apply]

Subjects

• Caesar cipher
• Vigenere cipher
• Claude Shannon
• DES
• TripleDES
• Diffie Hellman

• Rijndael and AES
• .NET Core classes used for symmetric encryption and decryption

• RSA
• Wrapping a symmetric key
• .NET Core classes used for asymmetric encryption and decryption

• What is hashing?
• Algorithms for hashing

• Why digital Signatures?
• .NET Core classes to create a digital signature
• HMAC

• What are certificates?
• How to create and use certificates?
• .NET Core classes to handle certificates