Cryptography is the process of encoding information to make it unreadable to unauthorized individuals. It is an ancient technique used to ensure the confidentiality and security of communications and data. Cryptography involves the use of mathematical algorithms to transform the original content into a format that can only be decrypted with the correct key.
There are two main types of cryptography: symmetric and asymmetric. In symmetric cryptography, the same key is used for both encrypting and decrypting the data. In asymmetric cryptography, distinct keys are used: a public key, which can be shared with anyone, and a private key, which must be kept secret.
Cryptography plays a crucial role in protecting sensitive information, both in online communications and in the storage of sensitive data. Today, it is widely used in technologies such as SSL/TLS to secure online transactions, in messaging apps that offer end-to-end encryption, and in cloud storage systems that protect user data. Description by ChatGPT.
