Sending secret messages to your friends is fun, but today it’s so simple that you don’t even notice it anymore: practically any serious messaging system features encryption of some sort. To teach his ...

Learn how to implement a classic substitution cipher in C! This step-by-step tutorial walks you through encoding and decoding messages by replacing each letter with another according to a fixed key. A ...

This course covers the basic knowledge in understanding and using cryptography. The main focus is on definitions, theoretical foundations, and rigorous proofs of security, with some programming ...

Quantum computing and quantum computers are in advanced stages of development due to recent nanotechnology advances in these areas. These computers promise to be so fast and powerful that our modern ...

1: What is quantum computing in the first place? Quantum computers are devices that use different scientific concepts than classical computers and can exploit the counterintuitive properties of ...

The arena of creating secure environments in the hardware and software industries is somewhat shrouded in mystery and misunderstanding. Certainly, some types of ciphers are relatively straightforward ...

Recent years have witnessed widespread use of computers and their interconnecting networks. This demands additional computer security and privacy measures to protect the information and relevant ...

So, as part of my punishment homework for an online C class, I have to write a program that solves this assignment: "Your application should read the four-digit integer entered by the user and encrypt ...

When quantum computers become commonplace, current cryptographic systems will become obsolete. Scientists are racing to get ahead of the problem and keep our data secure.

Sending secret messages to your friends is fun, but today it’s so simple that you don’t even notice it anymore: practically any serious messaging system features encryption of some sort. To teach his ...