官方
手机令牌用于生成多种形态的动态密码，包括事件型HOTP、时间型TOTP和挑战应答型CROTP， 高度改进用户身份认证方式，提高账户安全。
This mobile OTP could be used to generate different kinds of one-time-password (OTP), such as event-based HOTP, time-based TOTP and challenge/response OTP, the OTP code could be used as the second-factor when authenticating user's identity, and its widly used to secure user's accont.
OTP Mobile Token更新说明：
修复若干问题。