All settings can be managed through the WordPress admin interface at Settings > JWT Auth Pro. Let’s explore the available configuration options.

​
Token Settings

Configure how JWT tokens are generated and managed:

​
Available Options:

  • JWT Expiration: Control how long access tokens remain valid (default: 7 days)
  • Refresh Token Expiration: Set the lifespan of refresh tokens (default: 30 days)
  • Signing Algorithm: Choose the algorithm for token signing (default: HS256)
  • CORS Support: Enable/disable CORS for cross-origin requests

​
User Settings

Control token behavior based on user actions:
  • Revoke on Password Change: Automatically revoke all tokens when a user changes their password (default: true)
  • Revoke on Role Change: Revoke tokens when a user’s role is modified (default: true)
  • Revoke on Email Change: Invalidate tokens when a user updates their email (default: true)
  • Delete on User Delete: Remove all tokens when a user is deleted (default: true)

​
Data Management

Configure how JWT Auth Pro handles data:
  • Analytics Retention: Control how long authentication analytics are stored (options: 30, 90, 180, 360 days, or Forever)
Setting Analytics Retention to “Forever” may significantly increase your database size over time, depending on your site’s traffic and authentication activity. Consider using a finite retention period for optimal performance.
  • Delete on Deactivation: Choose whether to remove all plugin data upon deactivation (default: true)
When Delete on Deactivation is enabled, all plugin data will be permanently deleted upon plugin deactivation. This action cannot be undone, and data can only be recovered if you have a database backup prior to deactivation.
  • Anonymize IP: Option to anonymize IP addresses in analytics data (default: false)

​
Rate Limiting

Configure rate limiting for API endpoints:
  • Enable Rate Limiting: Turn rate limiting on/off (default: true)
  • Max Requests: Maximum number of requests allowed in the time window (default: 60)
  • Window Minutes: Time window for rate limiting in minutes (default: 1)
Rate limit headers included in responses, this can be diasable via Filters. 
X-RateLimit-Limit: Maximum requests allowed
X-RateLimit-Remaining: Remaining requests in current window
X-RateLimit-Reset: Timestamp when the rate limit resets
Retry-After: Seconds to wait when rate limit is exceeded

​
Advanced Configuration

​
Using RSA Keys (RS256)

By default, JWT Auth Pro uses HS256 (HMAC SHA-256) for token signing. You can switch to RS256 (RSA SHA-256) for enhanced security, especially in distributed systems.

​
1. Generate RSA Keys

First, generate a private/public key pair: 
# Generate private key
openssl genpkey -algorithm RSA -out private.key -pkeyopt rsa_keygen_bits:2048

# Generate public key
openssl rsa -pubout -in private.key -out public.key

​
2. Configure Keys

Add these filters to your theme’s functions.php or a custom plugin: 
// Set the algorithm to RS256
add_filter('jwt_auth_algorithm', function($algorithm) {
    return 'RS256';
});

// Set the private key for token signing
add_filter('jwt_auth_secret_private_key', function($key) {
    return file_get_contents(ABSPATH . 'path/to/private.key');
});

// Set the public key for token validation
add_filter('jwt_auth_secret_public_key', function($key) {
    return file_get_contents(ABSPATH . 'path/to/public.key');
});
Store your keys securely and never commit them to version control. Consider using environment variables or WordPress constants in wp-config.php to store the key paths.

​
3. Key Storage Example

A secure way to configure keys using constants: 
// In wp-config.php
define('JWT_AUTH_PRIVATE_KEY_PATH', '/secure/path/private.key');
define('JWT_AUTH_PUBLIC_KEY_PATH', '/secure/path/public.key');

// In your code
add_filter('jwt_auth_secret_private_key', function($key) {
    return file_get_contents(JWT_AUTH_PRIVATE_KEY_PATH);
});

add_filter('jwt_auth_secret_public_key', function($key) {
    return file_get_contents(JWT_AUTH_PUBLIC_KEY_PATH);
});

​
4. Using Key Strings Directly

Alternatively, you can use the RSA key strings directly in your code: 
add_filter('jwt_auth_algorithm', function($algorithm) {
    return 'RS256';
});

add_filter('jwt_auth_secret_private_key', function($key) {
    return <<<EOD
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----
EOD;
});

add_filter('jwt_auth_secret_public_key', function($key) {
    return <<<EOD
-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuzWHNM5f+amCjQztc5QT
fJfzCC5J4nuW+L/aOxZ4f8J3FrewM2c/dufrnmedsApb0By7WhaHlcqCh/ScAPyJ
hzkPYLae7bTVro3hok0zDITR8F6SJGL42JAEUk+ILkPI+DONM0+3vzk6Kvfe548t
u4czCuqU8BGVOlnp6IqBHhAswNMM78pos/2z0CjPM4tbeXqSTTbNkXRboxjU29vS
opcT51koWOgiTf3C7nJUoMWZHZI5HqnIhPAG9yv8HAgNk6CMk2CadVHDo4IxjxTz
TTqo1SCSH2pooJl9O8at6kkRYsrZWwsKlOFE2LUce7ObnXsYihStBUDoeBQlGG/B
wQIDAQAB
-----END PUBLIC KEY-----
EOD;
});
While using key strings directly in code is possible, it’s recommended to store them in secure environment variables or files for better security and key management.

​
Benefits of RS256

  • Asymmetric Encryption: Different keys for signing and verification
  • Better Security: Private key can be kept secret on the authentication server
  • Scalability: Public key can be distributed to multiple verification servers
  • Standard Compliance: Widely used in enterprise applications
All configuration options can be managed through the WordPress admin interface at Settings > JWT Auth Pro. The constants in wp-config.php are optional and will override the settings in the admin interface if defined.