4 papers
Linking Contexts from Distinct Data Sources in Zero Trust Federation
Masato Hirai, Daisuke Kotani, Yasuo Okabe
An access control model called Zero Trust Architecture (ZTA) has attracted attention. ZTA uses information of users and devices, called context, for authentication and authorizatio…
Zero Trust Federation: Sharing Context under User Control toward Zero Trust in Identity Federation
Koudai Hatakeyama, Daisuke Kotani, Yasuo Okabe
To securely control access to systems, the concept of Zero Trust has been proposed. Access Control based on Zero Trust concept removes implicit trust and instead focuses on evaluat…
Key Management Based on Ownership of Multiple Authenticators in Public Key Authentication
Koudai Hatakeyama, Daisuke Kotani, Yasuo Okabe
Public key authentication (PKA) has been deployed in various services to provide stronger authentication to users. In PKA, a user manages private keys on her devices called authent…
Acila: Attaching Identities of Workloads for Efficient Packet Classification in a Cloud Data Center Network
Kentaro Ohnishi, Daisuke Kotani, Hirofumi Ichihara +2
IP addresses and port numbers (network based identifiers hereafter) in packets are two major identifiers for network devices to identify systems and roles of hosts sending and rece…