The Rise of Public-Key Cryptography: From Closed to Open Encryption Inukai To begin, Professor Anada, could you give us a brief overview of the history of cryptography? Anada Cryptography dates back to ancient times, but it became particularly important during the two World Wars. Early ciphers were substitution ciphers, where each letter was replaced with … Continue reading Encryption: Shedding Light on the Shadows of Information Security