Require authenticate for "https://github.com/hathach/stm32lib.git"?

[water5]

When I use git submodule update --init --recursive, return error below:

fatal: Authentication failed for 'https://github.com/hathach/stm32lib.git/'
fatal: unable to access 'https://github.com/hathach/stm32lib.git/'

Which user name and password to use?