FTP login uses normal username and password scheme for granting access. This account is protected by credentials such as a username and a password. OpenVPN allows peers to authenticate each other using pre-shared secret keys, certificates or username/password. Each application is protected by a password with different requirements for username & password length. This first table has two username and password combinations. Network security starts with authentication, commonly with a username and a password. However, to make use of username/password authentications, OpenVPN depends on third-party modules. The fourth and fifth parameters are the username and password, respectively. Searches can be made for a name, email, phone number, username or address. The session directory keeps a list of sessions indexed by username and server name. Recipients of transactions can be found via phone number, Venmo username, or email. They would create an account and be given a unique username. A Gamertag is the universal name for a player's username on Xbox Live. Nakamura maintains a Twitter account under the username "GMHikaru". Each public key is bound to a username or an e-mail address.