Avoid confusion about the token type

providers/class-two-factor-email.php

@@ -72,7 +72,7 @@ public function get_alternative_provider_label() {
 	 * @return string
 	 */
 	public function generate_token( $user_id ) {
-		$token_length = (int) apply_filters( 'two_factor_token_length', 8 );
+		$token_length = (int) apply_filters( 'two_factor_email_token_length', 8 );
 
 		$token = $this->get_code( $token_length );
 

readme.txt

@@ -28,7 +28,7 @@ Here is a list of action and filter hooks provided by the plugin:
 - `two_factor_enabled_providers_for_user` filter overrides the list of two-factor providers enabled for a user. First argument is an array of enabled provider classnames as values, the second argument is the user ID.
 - `two_factor_user_authenticated` action which receives the logged in `WP_User` object as the first argument for determining the logged in user right after the authentication workflow.
 - `two_factor_token_ttl` filter overrides the time interval in seconds that an email token is considered after generation. Accepts the time in seconds as the first argument and the ID of the `WP_User` object being authenticated.
-- `two_factor_token_length` filter overrides the default 8 character count for email tokens.
+- `two_factor_email_token_length` filter overrides the default 8 character count for email tokens.
 - `two_factor_backup_code_length` filter overrides the default 8 character count for backup codes. Providers the `WP_User` of the associated user as the second argument.
 
 == Frequently Asked Questions ==

tests/providers/class-two-factor-email.php

@@ -358,7 +358,7 @@ public function test_custom_token_length() {
 		$default_token = $this->provider->generate_token( $user_id );
 
 		add_filter(
-			'two_factor_token_length',
+			'two_factor_email_token_length',
 			function() {
 				return 15;
 			}
@@ -369,7 +369,7 @@ function() {
 		$this->assertNotEquals( strlen( $default_token ), strlen( $custom_token ), 'Token length is different due to filter' );
 		$this->assertEquals( 15, strlen( $custom_token ), 'Token length matches the filter value' );
 
-		remove_all_filters( 'two_factor_token_length' );
+		remove_all_filters( 'two_factor_email_token_length' );
 	}
 
 }