prasad@leowise.com
8904448717
3-tier applications are robust, enterprise-level programs designed to perform a series of tasks with multiple user interactions, tailored for specific purposes such as ERP, Document Management, or Bank Reconciliation Systems (BRS). These applications follow a 3-tier architecture consisting of a web-based front end (Angular), an API middleware (.NET), and a database backend (MS SQL Server).
They are built with advanced security features, including Azure ADID integration with Multi-Factor Authentication (MFA), AES-256 encryption, HTTPS protocols, and session timeouts. Security enhancements include disabling CBC mode ciphers, removing unwanted HTTP response headers, enabling X-Frame options to prevent clickjacking, Content Security Policies, and X-XSS-Protection. The responsive design ensures seamless performance across different screen sizes, offering a versatile and secure user experience.

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Front-End (Angular, Gmail-like Interface):
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The front-end is built using Angular, known for its dynamic and responsive design capabilities. The interface mimics Gmail's simplicity and user-friendly navigation, making it intuitive for users. It ensures a seamless experience, regardless of the complexity of the tasks being executed.
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Middleware (.NET):
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.NET serves as the middleware, bridging the front-end and the backend. It handles requests and ensures smooth communication between layers, enabling secure and efficient data handling.
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Backend (MS SQL Server):
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The backend database is powered by MS SQL Server, ensuring robust data storage, management, and retrieval. It supports large-scale operations with optimized performance and high reliability to processes business logic.
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Secure Protocols:
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Adopting the highest security standards ensures protection against vulnerabilities. Secure protocols form the backbone of safe data transmission across the application layers.
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Azure ADID Integration with Multi-Factor Authentication (MFA):
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Users authenticate via Azure Active Directory with MFA, adding an extra layer of security by requiring two or more verification factors. This minimizes risks of unauthorized access.
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Session Timeout:
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The application enforces session timeout policies to enhance security. If users remain idle for a specified period, they are logged out, preventing unauthorized access in case of unattended sessions.
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HTTPS:
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All data transmitted between the client and server is encrypted using HTTPS, protecting sensitive information from interception during transmission.
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AES-256 Encryption:
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AES-256, one of the most secure encryption standards, is implemented to safeguard stored and transmitted data against unauthorized access or breaches.
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CBC Mode Ciphers Disabled:
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Cipher Block Chaining (CBC) mode, vulnerable to certain cryptographic attacks, is disabled to ensure higher levels of security.
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Unwanted HTTP Response Headers Removed:
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Headers such as server information, ASP.NET version, and IIS version are removed from HTTP responses to minimize exposure to potential attacks.
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X-Frame Options Header to Prevent Clickjacking:
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X-Frame Options are enabled to prevent clickjacking attacks, ensuring that the application cannot be embedded within an iframe by malicious websites.
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Content Security Policy (CSP):
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CSP is implemented to control resources the browser is allowed to load, mitigating risks like cross-site scripting (XSS) and data injection attacks.
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X-XSS-Protection (HTTP Strict Transport):
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This feature ensures protection against reflected XSS attacks by sanitizing potentially malicious scripts, thus protecting users and their data.
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Responsive Design:
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The application is designed to adapt seamlessly to different screen sizes and resolutions, ensuring a consistent user experience across desktops, tablets, and mobile devices.
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