One example of cryptography is the widely used encryption technique known as the Advanced Encryption Standard (AES). AES is a symmetric encryption algorithm that is employed to secure sensitive information and communications. AES operates on fixed-length blocks of data and uses a secret encryption key to transform plaintext into ciphertext and vice versa. It is a widely adopted encryption standard and is used in various applications, including secure communications, data storage, and protecting sensitive information. AES has different key sizes, such as 128-bit, 192-bit, and 256-bit, indicating the length of the encryption key used. The larger the key size, the stronger the encryption and the more difficult it is to break.