Peter Hmelak created DIRSERVER-1822:
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             Summary: Same password can be used multiple times, when SSHA is 
used for password hash.
                 Key: DIRSERVER-1822
                 URL: https://issues.apache.org/jira/browse/DIRSERVER-1822
             Project: Directory ApacheDS
          Issue Type: Bug
            Reporter: Peter Hmelak


When using SSHA (salted SHA) for password hashing, no CONSTRAINT_VIOLATION 
(invalid reuse of password present in password history) is thrown, if new 
password is the same as one already in pwdHistory.

I believe current implementation just compares new password hash, with with 
ones stored in pwdHistory.
And because of new salt, no two hashes are ever a-like, even though passwords 
are the same.

Suggestion for fix:

*Every* salt stored in pwdHistory should be used, together with new password 
when creating password hashes, that are then compared with ones already stored 
in pwdHistory.


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