Cryptographic Protocols are sets of rules that guide the secure transmission of information on various digital platforms. Coursera's Cryptographic Protocols catalogue teaches you about the principles of creating and implementing these protocols, including techniques for ensuring data confidentiality, integrity, and authenticity. You'll learn to design secure communication systems and understand the threats and attacks they face, as well as the measures to counter them. As part of this journey, you will delve into concepts like encryption, decryption, digital signatures, and key distribution. This skill is essential for anyone seeking to work in the fields of cybersecurity, network security, or information security.