Depending upon your course and department, there are different ways to apply for a CS account. Please select your course in the table below to show the procedures of applying for an account for your particular course.

This is usually the case when you were not yet enrolled while we got the list of the students. Please send us a verifiable enrollment certificate (PDF) via e-mail. You can create that yourself quickly on BASIS. The procedure is explained here.

The CS or b-it identifier must be extended by 30 November of each year. The extension period is the beginning of the winter semester until the 30th of November of the same year. Please renew your account within the regular extension periods!

If it was not possible for you to renew your account in due time, please contact us in our office in room 0.014. This procedure also applies for students who forgot to extend their accounts at the beginning of the semester.

Please use the password reset page.

For a renewal request, simply download a new one from the application server. For a new account, send us an electronic enrollment certificate as e-mail.

To construct a password for a computer science / b-it identifier, the following criteria must be met:

• password must contain a minimal of 12 characters
• first 8 characters must contain:
  1. Latin uppercase letters : A, B, C, … Z
  2. Latin lowercase letters : a, b, c, … z
  3. Arabic numbers : 0, 1, 2, … 9
  4. not alphanumeric characters : #?~:;,.{}()/_=%+-
• The password must not be part of your login name or your correct name.
• The character categories should appear mixed (not as in “1Hello2”).
• Ingredients should not be found in a dictionary or dictionary.
• Only characters from the above character category are allowed (1-4).

A little tip: think of a word and modify it: Example: Bleistift (engl. Pencil) → B1ejsT.ft (“k” becomes “1”, “i” becomes “j” and “.”)