Choose your username: your username must have at least 9 characters. You can ask the system to suggest one for you by clicking on 'Suggest'. You can always modify the suggested username.
The passwords are case-sensitive and its length must be at least 8 characters. Your password must respect at least 3 of 4 of the following rules: 1)It must at least contain an upper case letter. 2)It must at least contain a lower case letter. 3)It must at least contain a digit. 4)It must at least contain a special character.