npm package: @safez/node-safez
Description: Unveil the power of cryptography in your Node.js applications with node-safez, the essential middleware for security-conscious developers. Leveraging the potent capabilities of safez-cryptx for AES-CBC symmetric encryption, node-safez stands as a bastion 
Author: arunkumarr@clarium.tech,arunkumars@clarium.tech,judejosephmsm@clarium.tech,ramyas@clarium.tech,sririshikeshb@clarium.tech,vigneshwaranp@clarium.tech, arunkumarravindrandev@outlook.com
Latest version: 1.0.0

Overview of Node-safez
======================

**Node-safez** is a security middleware for Node.js applications, providing automatic encryption and decryption of data in transit. Designed to work seamlessly with HTTP requests and responses, it ensures that sensitive data is protected from unauthorized access and interception by utilizing advanced encryption techniques.

This middleware integrates directly into Node.js servers, offering developers a simple yet powerful tool to enhance their application's security. By encrypting data before it is sent and decrypting incoming data, Node-safez maintains the confidentiality and integrity of data throughout its lifecycle.

**Node-safez** is configurable to meet diverse application security needs, providing flexibility in encryption standards and protocols to suit different levels of security requirements.

*   Employs industry-standard encryption algorithms to secure data during transmission.
*   Helps protect against data breaches and cyber threats, enhancing overall application security.

Implementation of **Node-safez** into Node.js applications is straightforward, promoting a secure development ecosystem without introducing complexity.



#### Installation

Add Node-safez to your Node.js project with the following command:

* * *

    npm install node-safez or yarn add node-safez



Setup and Configuration
=======================

Integrate Node-safez into your application and configure it for your server's needs:

* * *

    const { safezInterceptor } = require("@safez/node-safez");

Usage
=====

After integration, Node-safez automatically encrypts and decrypts the data for all incoming and outgoing server requests.

#### Customizing Encryption per Request

Adapt encryption settings for individual requests by modifying request headers or server configurations:


* * *

    app.use(safezInterceptor({ safezSaavi: "dummysecretkeyab" }));   

The optional values inside safezInterceptor are crypto type, configurable values are 'full', 'field', 'none'.
When safezEnable is true, default value is full.
When configured the safez, all your payload will be encrypted

Handling Errors
===============

Effective error handling is crucial for maintaining the security and reliability of applications using Node-safez. Ensure that encrypted data errors are properly managed and decrypted for accurate troubleshooting and response.

### Best Practices for Secure Error Handling

*   **Encryption Secret Management:** Keep your encryption secrets secure and inaccessible to unauthorized parties. Utilize environment variables or secure secret management solutions to store these keys.
*   **Selective Encryption:** Use encryption strategically to balance security needs with performance. Node-safez allows for selective encryption, enabling developers to choose which data requires encryption based on sensitivity.

#### Troubleshooting Common Encryption Issues

*   **Syncing Encryption Keys:** Ensure that encryption keys are consistent across all components of your application to avoid decryption failures.
*   **Middleware Configuration:** Verify that Node-safez is correctly initialized and configured before processing any requests to prevent bypassing encryption mechanisms.



Frequently Asked Questions (FAQ)
================================

Address common queries about Node-safez to provide clearer understanding and guidance for integration and use.

*   **Is Node-safez compatible with all Node.js applications?**

    Yes, Node-safez is designed to be flexible and can be integrated into any Node.js application that handles HTTP requests and responses, enhancing data security regardless of the application's architecture or framework.

*   **How can I exclude certain data or endpoints from encryption?**

    Node-safez allows for customizable encryption policies. By configuring the middleware or modifying request handlers, you can specify which data or endpoints should bypass encryption, providing control over the encryption process.