What you mean is migrate from badly broken legacies like:

MD5(salt + password)
SHA1(salt +password) 

To BCrypt, Scrypt or PBKDF2? If yes, +1000000

On Tue, Nov 17, 2015 at 1:07 PM Kunal K <kunal@plivo.com> wrote:
Hi all,

I would like to start a discussion on how to implement - https://issues.jboss.org/browse/KEYCLOAK-1900

I have a django web app and all of my users are in a postgres database with salted passwords hashed using SHA. I have been reading how I can use UserFederation to implement by own credential validation, but the drawback here would be that I'll have to keep maintaining my old database.

For starters, I was thinking of replacing all occurrences of Pbkdf2PasswordEncoder with an equivalent SHAPasswordEncoder, which is a very crude approach and I'm not sure if it will even work. After some bit of reading I saw this ticket - https://issues.jboss.org/browse/KEYCLOAK-1900

I would like to implement a custom hashing SPI and would love to get some pointers on how to go about it.

Thanks

--
KUNAL KERKAR | PRODUCT ENGINEER
Plivo, Inc. 340 Pine St, San Francisco - 94104, USA
Web: www.plivo.com | Twitter: @plivo, @tsudot
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