To all users of server certificate service

Due to the renewal of the following digital certificate service of NII,

https://certs.nii.ac.jp/news/20251112-0

The root CA certificate and intermediate CA certificate for server certificates issued on or after December 17, 2025, will be changed.

In getting the new server certificate, please acquire Intermediate certificate from the CA certificate of RSA Certificate Authority (nii-odca4g8rsa-pem.cer) for use. We recommend using a cross-root certificate for computers that have not yet received the new root certificate.

https://repo1.secomtrust.net/sppca/nii/odca4/index.html

References：Application for the server certificate https://www.iimc.kyoto-u.ac.jp/ja/services/network/admin/cert