Discrete Math

Study of mathematical structures that are fundamentally discrete rather than continuous.

Practical Applications

Cryptography and Security

Keeping Information Safe

Cryptography uses discrete math (especially number theory and modular arithmetic) to protect information. It involves creating codes and ciphers to keep messages secure.

How Does It Work?

  • Encryption: Turning readable information into a secret code.
  • Decryption: Turning the code back into readable information.
  • Keys: Special numbers or passwords used to lock and unlock information.

Real-World Impact

Every time you send a secure message, use online banking, or shop on the internet, cryptography is working behind the scenes!

Examples

  • Using passwords and encryption to protect your email from hackers.

  • Online shopping websites use cryptography to secure your credit card data.