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From "Ate Douma (JIRA)" <jetspeed-...@portals.apache.org>
Subject [jira] Created: (JS2-359) Provide a more flexible and less strict default configuration of InternalPasswordCredentialInterceptors
Date Tue, 06 Sep 2005 00:43:30 GMT
Provide a more flexible and less strict default configuration of InternalPasswordCredentialInterceptors

         Key: JS2-359
         URL: http://issues.apache.org/jira/browse/JS2-359
     Project: Jetspeed 2
        Type: Improvement
  Components: Security  
    Versions: 2.0-M4    
    Reporter: Ate Douma
 Assigned to: Ate Douma 
    Priority: Minor
     Fix For: 2.0-M4

The default configuration is furthermore rather (military) strict in that it
- enforces a password change on first login
- keeps a history of already used (and thus not allowed to be used again) passwords
- sets a max lifespan on each password
- requires a minimum length of 6 with at least 2 digits.

All these rules and features are already configurable through springframework right now.
But because these are enforced by an interceptor hierarchy, disabling one rule like max lifespan
or required password change on first login, 
requires replacing an interceptor or modifying the interceptor hierarchy.

I'm going to provide a more flexible solution by changing the DefaultCredentialHandler to
accept a list of InternalPasswordCredentialInterceptors in its constructor.
The DefaultCredentialHandler will then invoke each provided interceptor in the list .
And I will breakdown the current complex interceptors into simple interceptors which each
only providing/enforcing only one rule or feature:
- password encoder: encodes a not-yet-encoded password on first load  
- password history: configurable history of passwords which cannot be reused
- change password on first use (note: the password encoder interceptor will enforce this when
the not-yet-encoded password turns out to be invalid)
- password expiration: configurable password max lifespan
- max authentication failures: configurable number of validation errors (in a row) allowed

Once this is in place and working we can decide which of these interceptors should be used
in the default configuration for Jetspeed-2.
And I will provide a document how to use these interceptors including an example how to enforce
the same strict rules of our current configuration.

Further enhancements I'd like to implement are:
- only temporarily disabling of a credential after max authentication failures (like 30 minutes)
- disable password expiration for certain credentials (for example an admin credential) and/or
certain users/groups/roles
But I'm not sure yet I'll be able to provide these additional features without database model

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