4-4 Researches on cryptographic protocols - Standardization and global collaborations

Cryptography is fundamental technique to achieve security property in information systems. It is not only used alone, also used as combinations of cryptography and communication in communication protocol. Thus, methods for verification of cryptographic protocols and defining security levels become important research. Then they also requested to be done by global collaboration and used through standardization to achieve international consensus. This article describes standardization activities and international collaborations in researches on cryptographic protocols in the second medium-term plan.