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From greenman18523 <>
Subject [GitHub] commons-lang issue #332: Add methods allowing masking of Strings
Date Sun, 24 Jun 2018 17:03:48 GMT
Github user greenman18523 commented on the issue:
    Hello @stokito, thanks for the input. The reasoning of creating two method was for a more
intuitive API and to not add too many parameters in just one method. And I also didn't want
to create a 3rd method that would just do the main logic without it being able to be exposed
(i.e. private).
    I like the idea of the mask being in the middle of the string, and I was thinking of incorporating
it into the code, but was not sure how useful it would be for others.
    An other goal of the way the methods are, is to clearly enforce a minimum amount of masking
before being able to show any information. e.g. in the case of a credit card, even if the
user has erroneously entered 8 out of the 16 characters, a call to ``StringUtils.maskEnd("35660020",
'*', 12, 4)`` would not show any sensitive information, but a call to ``StringUtils.mask("35660020",
0, 4, '*')`` would expose. 
    I think that both implementations can be useful for a number of use-cases, some common
to both, but some are covered by one of the two implementation.
    Of course this can also be achieved by an extra parameter in your implementation. What
do you think?


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