Passwords on ODF files

[Larry Hartman]

> The calculation above applies to file safes as well, if it is for brute
> force attacks only. But there is another possible approach. You can find
> faults in the encryption algorithm. If the algorithm is weak, it may be
> much easier to decrypt the contents of the file save or anything else
> which is encrypted.

more questions.....the encryption algorithm, is the algorithm generated by the 
password, or generated by OpenOffice programming, or both?

How well are *.odf files encrypted..i.e what level of effort would be 
necessary to undo this?