In order to use e-signature in EBYS application, Arksigner application must be installed on computers. Windows, MAC, Ubuntu, or Pardus versions of the application can be downloaded from https://www.arksigner.com/indir. After downloading the application, start the installation process by running it and follow the instructions on the screen.

IMPORTANT NOTE: When new Qualified Electronic Certificates (e-signature) issued by KamuSM as of March 2021 are used with 2.2.4 and older versions of ArkSigner, the error "No Reliable Certificate Found" is encountered in EBYS. Particularly, our users who receive their certificate after March 2021 are kindly requested to install latest ArkSigner.

You can log in to the EBYS with e-signature using the "Elektronik İmza ile Giriş" link at https://ebys.metu.edu.tr. First, plug the USB reader in which your e-signature SIM card is inserted to your computer.

When you press the "Elektronik İmza ile Giriş" link, the card reader, certificate information (owner, identity number, serial number, etc.) will be displayed. After entering your PIN number, you can log in to the EBYS application with the GREEN button.

If the Arksigner application is not installed, you may encounter the following error message. In this case, check whether the Arksigner application is installed or not.

If you have problems using e-signature even though you have set up e-signature, or if you have different questions about e-signature, please check the frequently asked questions at https://faq.cc.metu.edu.tr/tr/groups/e-imza.