DES

DES, or Data Encryption Standard, is a method used to secure digital information by transforming readable data into an unreadable format, called ciphertext. It uses a specific algorithm and a secret key to perform this transformation, ensuring that only someone with the key can revert the data back to its original form. Widely used in the past, DES provides a way to protect sensitive data during transmission or storage. Although more advanced methods now exist, DES was fundamental in developing modern encryption techniques and establishing basic principles of digital security.