Many people don’t trust algorithms and machine learning because they don’t have a complete understanding of how they actually work. Let's break it down.

A UK controversy about school leavers’ marks shows algorithms can get things wrong. To ensure algorithms are as fair as possible, how they work and the trade-offs involved must be made clear.

Thus, the password maverick becomes 55f9c405bd87ba23896f34011ffce8da. As a further safeguard, the hashing algorithms work in only one direction. By design, you can’t un-hash a hashed password.

Learn when and how to use different data structures and their algorithms in your own code. This is harder as a student, as the problem assignments you'll work through just won't impart this knowledge.

In this chapter we will look at choosing and optimizing cryptographic algorithms, particularly for resource-constrained systems, such as embedded systems.