All client certificates and S/MIME certificates issued by our Client Certificate Issue Request System before December 24, 2020 will expire at the end of December 2021.

For those who wish to continue to use these certificates, please claim a new certificate at https://shibcert.iimc.kyoto-u.ac.jp/en.

Instructions are available at https://www.iimc.kyoto-u.ac.jp/en/services/cert/client_cert/.

See the following page for further information on this matter (Japanese only): https://certs.nii.ac.jp/news/20210721.

Also note that we reached out via email today to those who are using a certificate that will be affected by this expiration. The message was sent from support_at_iimc.kyoto-u.ac.jp under the title of "クライアント証明書 S/MIME証明書の更新のお願い."