Data Encryption Standard (DES) is a symmetric-key algorithm for the encryption of electronic data, and is used extensively across various industries to protect sensitive information. Coursera's DES skill catalogue teaches you about the fundamental principles and applications of this widely used encryption standard. You'll learn about the underlying mathematics of DES, its key generation process, the intricacies of its block cipher design, and its place in modern cryptosystems. You'll also delve into topics such as cryptanalysis of DES, understanding its vulnerabilities, and its role in broader data security practices. By mastering DES, you'll be positioned to contribute to the ongoing battle for data privacy and security in fields like cybersecurity, software development, and IT infrastructure.