What are the two main types of cryptography?

1. Symmetric cryptography: Also known as secret-key cryptography, symmetric cryptography uses the same key for both encryption and decryption. A popular example of symmetric cryptography is the Advanced Encryption Standard (AES).

2. Asymmetric cryptography: Also known as public-key cryptography, asymmetric cryptography uses two different keys, one for encryption and one for decryption. A popular example of asymmetric cryptography is the RSA algorithm.

What is cryptography?

Cryptography is the practice of using complex mathematical algorithms to encrypt and decrypt data. It is used to protect sensitive information from unauthorized access and to ensure its integrity. For example, when you make a purchase online, the information you provide is encrypted using secure socket layer (SSL) technology, which helps to protect your personal information during the transaction.