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OTP QR Code Component

1. Introduction​

The OTP QR Code component is a secure and interactive UI element used to generate and display a QR code for One-Time Password (OTP) authentication. This component is essential for implementing two-factor authentication (2FA) in applications, allowing users to scan the QR code with an authenticator app (e.g., Google Authenticator, Microsoft Authenticator) to set up OTP-based security.

Purpose and Use Cases​

  • Purpose: The OTP QR Code component is used to securely generate and display a QR code for OTP-based authentication.
  • Primary Use Cases:
    • Enabling two-factor authentication (2FA) for user accounts.
    • Providing a secure and user-friendly way to configure OTP in authenticator apps.
    • Enhancing application security by requiring an additional layer of authentication.

Benefits​

  • Enhanced Security: Adds an extra layer of protection to user accounts.
  • User-Friendly: Simplifies the OTP setup process with a scannable QR code.
  • Customizable: Fully configurable properties and styles to match the application's design.
  • Cross-Platform Compatibility: Works seamlessly on desktop, tablet, and mobile devices.

2. Properties​

The OTP QR Code component comes with a minimal set of properties to ensure secure and efficient functionality. Below is a detailed breakdown:

Code​

  • Description: A unique identifier for the component.
  • Purpose: Used to reference the component programmatically.
  • Required/Optional: Required

3. Style​

The OTP QR Code component offers extensive styling options to ensure it aligns with the application's design. Below are the key styling properties:

Size and Position​

  • Reset: Resets size and position settings to default.
  • Size:
    • Width & Height: Define the QR code's dimensions.
    • Min Size: Minimum width and height (default: none).
    • Max Size: Maximum width and height (default: none).
  • Position:
    • Alignment: Left, right, top, bottom (default: left, top).
    • X Position: Horizontal offset from the edge.
    • Y Position: Vertical offset from the edge.
  • Z-Index: Specifies the stack order of the QR code (default: 0).
  • Fixed Position: Locks the QR code's position on the screen (default: OFF).
  • Hidden: Hides the QR code from view (default: OFF).

Border​

  • Reset: Resets border settings to default.
  • Normal:
    • Edges: Left, right, top, bottom, or all edges.
    • Type: None, hidden, dotted, dashed, solid, double, groove, ridge, inset, outset, initial, inherit (default: none).
    • Color: Hexadecimal color code with a color picker.
    • Width: Border width in pixels.
    • Radius: Corner radius for rounded edges (default: none).
  • On Hover:
    • Same properties as "Normal" but applied when the QR code is hovered.

Padding​

  • Reset: Resets padding settings to default.
  • Normal:
    • Sides: Left, right, top, bottom, or all edges.
    • Size: Padding size in pixels.
  • On Hover:
    • Same properties as "Normal" but applied when the QR code is hovered.

Background​

  • Reset: Resets background settings to default.
  • Normal:
    • Background Color: Hexadecimal color code with a color picker (default: none).
    • Source: Media library or HTTP URL.
    • Attachment: Scroll, fixed, local, initial, inherit.
    • Position: X and Y positions in pixels (default: 0).
    • Repeat: Repeat, repeat-x, repeat-y, no-repeat, initial, inherit.
    • Size: Auto, length, cover, contain, initial, inherit.
    • Origin: Border-box, padding-box, content-box, initial, inherit.
  • On Hover:
    • Same properties as "Normal" but applied when the QR code is hovered.

Label Font​

  • Reset: Resets label font settings to default.
  • Options:
    • Font Size: Pixels (default: 14).
    • Letter Spacing: Number expressed in em, px, or rem units.
    • Word Spacing: Number expressed in em, px, or rem units.
    • Line Height: Number expressed in em, px, or rem units.
    • Weight: Thin, light, extra light, normal, medium, semi-bold, bold, extra bold, black (default: normal).
    • Color: Hexadecimal color code with a color picker (default: none).
    • Stretch: Normal (default), semi-condensed, condensed, extra-condensed, ultra-condensed, semi-expanded, expanded, extra-expanded, ultra-expanded.
    • Variant: Normal, small caps, initial, inherit.
    • Caps Variant: Normal, small caps, all small caps, mini caps, all mini caps, unicase, titling caps, initial, inherit.
    • Text Decoration:
      • Line: None, underline, overline, line-through, blink, initial, inherit.
      • Style: Solid, double, dotted, dashed, wavy, initial, inherit.
      • Thickness: Number expressed in em, px, or rem units (default: 1px).
      • Color: Hexadecimal color code with a color picker (default: none).

Answer Font​

  • Reset: Resets answer font settings to default.
  • Options: Same as Label Font.

Input Field Border​

  • Reset: Resets border settings to default.
  • Options: Same as Border.

Input Field Background​

  • Options: Same as Background.

4. Best Practices for UI/UX​

When and Why to Use​

  • Use the OTP QR Code component to enable two-factor authentication (2FA) for user accounts.
  • Ideal for applications requiring enhanced security, such as banking, e-commerce, or enterprise platforms.
  • Ensure the QR code is displayed prominently and is easy to scan.

Effective Scenarios​

  • Desktop: Use for account settings or security configuration pages.
  • Tablet/Smartphone: Ensure the QR code is responsive and easy to scan on smaller screens.

Tips for Optimal Use​

  • Provide clear instructions for users on how to scan the QR code with an authenticator app.
  • Use tooltips or help messages to guide users through the OTP setup process.
  • Ensure the QR code is large enough to be easily scannable on all devices.

5. Security Considerations​

Potential Risks​

  • QR Code Exposure: Ensure the QR code is only visible to the intended user to prevent unauthorized access.
  • External Resources: Validate any external resources used to generate or display the QR code.

Best Practices​

  • Use HTTPS for secure communication when generating or displaying the QR code.
  • Ensure the QR code is generated dynamically and is unique to each user.
  • Implement expiration times for QR codes to prevent reuse.
  • Display the QR code only on pages specifically configured for OTP setup.