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Paper ID:IJSREM64324

Secure Email-Based OTP Generation and Verification System

Stream/Area:

-

Subject:

-

Paper ID:

IJSREM64324

Volume:

10 |

5 |

May 2026

Pages:

1-7

Publication Frequency:

Monthly (12 issues per year)

DOI
Digital Object Identifier
10.55041/IJSREM64324

License:International Journal of Scientific Research in Engineering and Management follows the Creative Commons Attribution 4.0 (CC BY 4.0) License, allowing free use and distribution with proper attribution.

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Authors

GKR

G. Kasi Reddy

Computer Science & Engineering

Guru Nanak Institute of Technology

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TS

Tejavath Saikumar

Computer Science & Engineering

Guru Nanak Institute of Technology

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SJ

Shaik Jareena

Computer Science & Engineering

Guru Nanak Institute of Technology

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SSR

Shaga Sharon Raj

Computer Science & Engineering

Guru Nanak Institute of Technology

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Abstract

In today’s digital world, secure user authentication is important for protecting sensitive information and preventing unauthorized access. This paper presents a Secure Email-Based One-Time Password (OTP) Generation and Verification System developed using Flask. The system generates unique and time-limited OTPs and sends them to users through email for secure authentication. Flask is used as the backend framework to efficiently manage OTP generation, email delivery, and verification processes. The system also includes security features such as encryption, secure communication methods, and OTP expiration time to prevent replay attacks and unauthorized access. The proposed system is simple, reliable, and user-friendly, making it suitable for applications such as banking, e-commerce, and web-based services. The results show that the system improves authentication security while maintaining good performance and ease of use.

KEYWORDS

One-Time Password (OTP) Flask Email Authentication Cybersecurity User Authentication Secure Login OTP Verification Web Security Encryption Authentication System.

Cite This Article

G. Kasi Reddy, Tejavath Saikumar, Shaik Jareena, Shaga Sharon Raj, "Secure Email-Based OTP Generation and Verification System," International Journal of Scientific Research in Engineering and Management, vol. 10, no. 5, pp. 1-7, May 2026. https://doi.org/10.55041/IJSREM64324

Full Article/Conclusion

The proposed Email-Based OTP Generation and Verification System provides a secure, efficient, and user-friendly authentication mechanism that enhances access control in modern applications. Developed using Flask, the system ensures smooth integration with backend services while maintaining strong security protocols. By employing unique, time-bound OTPs and encrypted transmission, it effectively reduces risks such as interception, unauthorized access, and brute-force attacks. This system offers a reliable authentication framework, and with further enhancements, it has the potential to become an industry-standard security solution, ensuring safe and seamless digital interactions across various platforms.

References

[1] C.-J. Du and D.-W. Sun, ‘‘Learning techniques used in computer vision for food quality evaluation: A review,’’ J. Food Eng., vol. 72, no. 1, pp. 39–55, Jan. 2006. [2] B. Dhiman, Y. Kumar, and M. Kumar, ‘‘Fruit quality evaluation using machine learning techniques: Review, motivation and future perspectives,’’ Multimedia Tools Appl., vol. 81, no. 12, pp. 16255–16277, May 2022. [3] J. D. Smith and E. Roberts, ‘‘Secure OTP authentication system using email and SMS,’’ J. Cyber Security, vol. 15, no. 4, pp. 245–260, Aug. 2021. [4] M. Johnson and S. Lewis, ‘‘Enhancing web security using Flask-based OTP verification,’’ Int. J. Comput. Appl., vol. 10, no. 2, pp. 89–105, Mar. 2022. [5] D. White and L. Green, ‘‘Cryptographically secure OTP generation for authentication systems,’’ IEEE Trans. Inf. Forensics Secur., vol. 17, no. 5, pp. 1123–1135, May 2020. [6] R. Adams and J. Brown, ‘‘Multi-factor authentication in web applications using one-time passwords,’’ J. Comput. Secur., vol. 9, no. 3, pp. 312–329, Jul. 2019. [7] J. Wilson and O. Martinez, ‘‘Improving user authentication through time-based one-time passwords (TOTP),’’ Comput. Syst. Appl., vol. 21, no. 6, pp. 765–780, Jan. 2023. [8] A. Gupta and P. Sharma, ‘‘Flask-based authentication system with enhanced security features,’’ J. Softw. Eng. Appl., vol. 14, no. 9, pp. 342–355, Nov. 2021. [9] K. Brown and L. Carter, ‘‘A study on the effectiveness of OTP-based security systems in web applications,’’ IEEE Access, vol. 20, no. 8, pp. 1222–1235, Jun. 2020. [10] T. Young and W. Chen, ‘‘Machine learning techniques for fraud detection in authentication systems,’’ J. Inf. Technol. Secur., vol. 25, no. 7, pp. 189–205, Sep. 2021.

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Publication Date

5/30/2026

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Double-Blind Peer Review

Review Rounds: 2

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