eSecuServer-OTP by Excelsecu is an ID authentication system based on One-Time Password. It enhances security for application systems, preventing hackers from exploiting system weaknesses. With mature and advanced technology, eSecuServer-OTP is easy to implement and maintains high security performance. It is flexible and adaptable, suitable for various usage scenarios and meeting diverse customer demands. eSecuServer-OTP supports TOTP and OCRA algorithms, operating load and redundancy between authentication servers, and supports up to 1200 concurrent users per server. It includes a web-based management subsystem for local and remote management. eSecuServer-OTP is widely used in various authentication security fields and is compatible with Windows, Linux, and Unix operating systems. It supports browsers such as IE8+, Chrome, and Firefox, and is available in Chinese and English languages. The system supports databases like Oracle, SQL Server, and MySQL, and uses HTTP as its communication method. eSecuServer-OTP supports products like eSecuOTP-Token, eSecuOTP-Card, and eSecuCard-DCVV. The OTP length can be configured to 3, 4, 6, or 8 digits.