Re: crypt function crash on postgresql 9.3.20 and 10 - Mailing list pgsql-bugs

From David G. Johnston
Subject Re: crypt function crash on postgresql 9.3.20 and 10
Date
Msg-id CAKFQuwZBcDJbe2TTqVq1bu=8fU17S_6gV5vSKmeZ9KwdNP=40A@mail.gmail.com
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In response to Re: crypt function crash on postgresql 9.3.20 and 10  (Pavan Teja <pavan.postgresdba@gmail.com>)
Responses Re: crypt function crash on postgresql 9.3.20 and 10  (Михаил Манерко <asper@tagan.ru>)
List pgsql-bugs
On Fri, Feb 2, 2018 at 7:50 AM, Pavan Teja <pavan.postgresdba@gmail.com> wrote:


On Feb 2, 2018 8:15 PM, "Mike Porter" <mike@udel.edu> wrote:
On Fri, 2 Feb 2018, Михаил Манерко wrote:

If you send an asterisk in the crypt function, the function crashes.


example

i=# select crypt('123','*');
ОШИБКА:  invalid salt
i=#

The second argument is the salt, and you have not passed enough bits
for the default hash type.

i=> select crypt( '123', 'aa' );
     crypt
---------------
 aamrgyQfDFSHw
(1 row)


      Hi, 
              Yeah Mike what u said is correct, the consistency of bits for generation of salt depends on algorithms like blow fish, md5 etc

​You sure?  Don't have time to show otherwise but the docs suggest what you are doing is validating a store encrypted password as opposed to encrypting the provided one.

David J.

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