Cryptography Basics

Cryptography is the practice and study of techniques for secure communication in the presence of third parties. This page provides an overview of the basics of cryptography, including key concepts and important terms.

Key Concepts

Encryption: The process of converting plaintext into ciphertext to prevent unauthorized access.
Decryption: The process of converting ciphertext back into plaintext.
Public Key Cryptography: A method that uses two keys, a public key and a private key, to encrypt and decrypt messages.
Symmetric Key Cryptography: A method that uses a single key to both encrypt and decrypt messages.

Cryptography in Action

Cryptography is used in various applications, such as:

Secure Messaging: Ensuring that messages sent over the internet are protected from eavesdroppers.
Digital Signatures: Verifying the authenticity and integrity of digital documents.
Secure Communication: Protecting sensitive information exchanged between parties.

Learn More

To dive deeper into the world of cryptography, check out our Advanced Cryptography Course.