Functional Specification Document (FSD)
Table of Contents
- Introduction
- Purpose
- Scope
- Definitions, Acronyms, and Abbreviations
- References
- Overview
- Functional Requirements
- Data Requirements
- User Interface Requirements
- Non-Functional Requirements
- Assumptions
- Constraints
- Acceptance Criteria
- Appendix
- Approval
Introduction
This document provides a detailed functional specification for the implementation of Two-Factor Authentication (2FA) in our system. It outlines the requirements, scope, and criteria for successful implementation.
Purpose
The purpose of this FSD is to detail the functional requirements for implementing Two-Factor Authentication (2FA) to enhance the security of user accounts by requiring a second form of authentication.
Scope
This FSD pertains to the implementation of 2FA for all user accounts within the system. The primary focus is on enhancing the security during the login process.
Definitions, Acronyms, and Abbreviations
- 2FA: Two-Factor Authentication
- OTP: One-Time Password
- SMS: Short Message Service
- MFA: Multi-Factor Authentication
References
Overview
The goal is to implement Two-Factor Authentication (2FA) to improve the security of user accounts. This will be achieved by requiring users to provide a second form of authentication in addition to their password during the login process.
Functional Requirements
Requirement 1: Implement 2FA
- ID: FR-001
- Description: Implement Two-Factor Authentication (2FA) for user accounts to enhance security.
- Priority: High
- Source: Security Team
- Rationale: To prevent unauthorized access to user accounts by adding an extra layer of security.
- Acceptance Criteria: The system should prompt users to enter a One-Time Password (OTP) sent to their registered mobile number or email address after entering their password.
- Dependencies: User Management System, SMS/Email Service
Data Requirements
- User Data: User's registered mobile number and email address for sending OTPs.
- OTP Data: Temporarily stored OTPs with a validity period.
User Interface Requirements
- Login screen must include an additional field for entering the OTP.
- A mechanism for users to request a new OTP if they do not receive one.
- Clear error messages for incorrect OTP entries.
Non-Functional Requirements
- Performance: The OTP should be sent to the user within 5 seconds.
- Security: OTPs must be valid for a limited time (e.g., 5 minutes) and should be securely generated and transmitted.
- Usability: The process should be user-friendly and not overly complex.
Assumptions
- Users have access to their registered mobile number or email address.
- Reliable SMS/Email service for delivering OTPs.
Constraints
- Limited to SMS and email for delivering OTPs.
- Network reliability for timely OTP delivery.
Acceptance Criteria
- Users must be able to log in by successfully entering their password and the OTP.
- OTPs must be sent promptly and be valid for the specified duration.
- The system must handle incorrect OTP entries gracefully and provide clear feedback to users.
Appendix
Approval
- Prepared by: Bob Frapples
- Email: mikemeier@mad-tech.ai
- Date: 12/19/2024
- Approved by: [Approver's Name]
- Date: [Approval Date]