Last Update:2025/04/21

User authentication

Summary of this page

This page explains basic items mainly concerning the configuration of user IDs and passwords for the Educational Information Services at Tohoku University, and their management method.

1. User ID and password

1.1 ID and password system

User IDs and passwords for Educational Information Services at the university are configured as shown in the following table.

スライド

User ID Explanation Password
Tohokudai ID Random string of alphanumeric characters
Example: ab12345678
Tohokudai ID password
Sub-ID Random string of alphabetic characters Sub-ID password
Google Workspace ID [String based on name]@dc.tohoku.ac.jp Google Workspace password
Microsoft365 ID [String based on name]@mso.tohoku.ac.jp Tohokudai ID password
  • Some systems use the student ID number instead of Tohokudai ID. Also, systems and services that are provided solely to students belonging to the university, including a specific faculty, department and/or graduate course on a limited basis, may use IDs other than the above.
  • IDs and passwords are lower and upper case sensitive. For example, “ab12cDe” and “Ab12Cde” are treated as separate strings.

1.2 Method of obtaining an ID and password

IDs and passwords, as discussed in Section 1.1, are allocated to all students concurrently with their enrollment into the university. These IDs and passwords can be confirmed using the following methods.

  • Confirmation page of Tohokudai ID (This page can be used for a set period only for departments and new graduate students. The access method is noted in the materials distributed when students enroll.)
  • Tohokudai ID notification letter (This is issued to some students such as non-degree students and auditing students.)
  • Integrated Electronic Authentication System (See Section 2 for the access method.)

2. Integrated Electronic Authentication System

2.1 Use of the Integrated Electronic Authentication System

The following tasks can be carried out using the Integrated Electronic Authentication System. (The following is one example. Other tasks can also be implemented.)

  • Confirm Tohokudai ID, Sub-ID, Google Workspace ID, and Microsoft365 ID
  • Change Tohokudai ID password, Sub-ID, and Sub-ID password

2.2 Accessing the Integrated Electronic Authentication System

Follow the steps below when accessing the Integrated Electronic Authentication System.

When following these steps, pay ample attention to phishing attacks. Carefully check URLs and electronic signatures, etc. to identify whether or not a website is fake.

  • Access the SSO login page.

  • Log in using your Tohokudai ID and Tohokudai ID password. In the event you access the system from off campus, it is necessary to implement two-step authentication such as a one-time password authentication.
  • If the authentication is successful, the student portal site will appear. Click on “Integrated Electronic Authentication System” in this portal site. (In the event you cannot find the system, click “service” or “auth” icon, which can be found at the top of the site.)

3. Manage Tohokudai ID and Tohokudai ID password

3.1 Change your Tohokudai ID password

Follow the steps below to reset your Tohokudai ID password.

  • Follow the steps in Section 2.2 to access the Integrated Electronic Authentication System.
  • The top page of the Integrated Electronic Authentication System will appear. Click “Change password” from the menu on the left side of the screen.

  • Reset the password in accordance with the password policy (will be displayed under the bar for inputting your password). Click “Save” at the bottom left of the screen after changing your password.

3.2 If you forget your Tohokudai ID and Tohokudai ID password

Should you forget your Tohokudai ID, bring your student ID card and visit one of the windows/desks below.

Access the Tohokudai ID password reminder and reset your password when you can no longer use your current Tohokudai ID password, including when you forget your Tohokudai ID password or when you have been locked out of your account by the administrator for security reasons. In case you cannot reset your password using this function, bring your student ID and visit the windows/desks above, the same as when you forget your Tohokudai ID.

4. Manage Sub-ID and Sub-ID password

4.1 Change your Sub-ID and Sub-ID password

When you change your Sub-ID and Sub-ID password to new ones, follow the steps below.

  • Follow the steps in Section 2.2 to access the Integrated Electronic Authentication System.
  • The top page of the Integrated Electronic Authentication System will appear. Click on “Register SubID” from the menu on the left side of the screen.

  • In accordance with the Sub-ID policy and/or the Sub-ID password policy (displayed below the Sub-ID / Sub-ID password input field), change your Sub-ID and/or Sub-ID password. Click “Save” at the bottom left of the screen after changing the ID and/or the password.

4.2 Points to note concerning Sub-ID

  • You can change your Sub-ID up to three times per academic year. (the first time you acquire your Sub-ID is counted as one change.)
  • You cannot use the Sub-IDs that other users have acquired or that were acquired by other users, including you, in the past.

5. Manage Google Workspace password

5.1 Change your Google Workspace password

Follow the steps below to reset your Google Workspace password.

  • Log in to Google, click the Google app icon at the upper right of the screen, and then click “Account”

  • Click “Personal info”

  • Click “Password”

  • Enter your current password (password before making changes) and click “Next”

  • Enter the password to be newly set, and enter the same password one more time for confirmation. Click “Change password” to complete the process.

5.2 If you forgot your Google Workspace password

Should you forget your Google Workspace password, follow the steps below to initialize your password. You can confirm the initialized password using “Edit Profile” in the Integrated Electronic Authentication System.

  • Follow the steps in Section 2.2 to log in to SSO. The student portal site will appear. Click “Google Workspace Password Initialization” in the portal site. (In the event you cannot find the system, click “service” or “auth” icon, which can be found at the top of the site.)

  • Your name, email address and the following documents will appear. Place a check beside “Change to the initial password of the whole school email,” and then click on “Execution” at the bottom left.

6. Inquiry

For inquiries concerning IDs and passwords for Educational Information Services at the university, contact the following.

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