I am working with a legacy application that stored passwords in plaintext. I have ported the application to spring 3 mvc + security. I have also successfully gotten spring security handling the authentication and authorization using sha256 + a salt based on the username. This all works great, however as part of the deployment, I will need to migrate the existing database to use the new password schema. I am not sure how spring security does it's password hashing with a salt, so i am unable to write a sql script that can be used to migrate the old plaintext passwords to the new sha256+salt schema. Is there any documentation or resources that I can use to figure this out?
Spring security password hash + salt
7.8k views Asked by vikash dat At
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madth3
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- If you are using the default password encode then the source seems useful. (Pick the branch appropiate for the version you are using).
- You can implement your own PasswordEncoder and define the way the salt is used.
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This is documented in
BasePasswordEncoder:So in your case you can compute the salted password using this simple code:
Note:
ShaPasswordEncoderextendsBasePasswordEncoder.