credentials (7)      - process identifiers
git-credential (1)   - Retrieve and store user credentials
git-credential-cache--daemon (1) - Temporarily store user credentials in memory
git-credential-store (1) - Helper to store credentials on disk
gitcredentials (7)   - providing usernames and passwords to Git
pam_setcred (3)      - establish / delete user credentials
pam_sm_setcred (3)   - PAM service function to alter credentials