[aerogear-dev] Password reset
Lucas Holmquist
lholmqui at redhat.com
Thu Dec 5 10:35:21 EST 2013
Sounds Good. +1
On Dec 5, 2013, at 6:43 AM, Bruno Oliveira <bruno at abstractj.org> wrote:
> Good morning slackland, here comes the basic idea about password reset: https://github.com/abstractj/password-reset
>
> Some considerations to keep in mind:
>
> 1. E-mail in an insecure channel, for this reason we won’t build any functionality to “remember” the password, only reset.
> 2. It must be provided over SSL
> 3. We are not NSA proof, so this is just a prototype to validate ideas.
>
>
> Details about the prototype:
>
> 1. The place to store the Token is totally up to the implementer: keystore, PicketLink or whatever database
> 2. The url to reset the password is built with PBKDF2 + authenticated one-way hash function (HMAC), which means there’s no way you can pull the url id back out. Into this way we are avoiding 2 issues: rainbow table attacks and tampering, into other words an attacker will have a hard time to brute force it, as well trying to corrupt the message.
> 3. This example doesn’t not validate e-mail address or have a login.
>
> - Token table
>
> - id: the hashed message generated and encoded in Base64 (Is possible to be an hexadecimal)
> - sentAt: the date and time when the token was sent to someone else
> - expiration: token expiration. Default’s to 1 hour.
> - used: if the token was used or not. I implemented it into this way, but being paranoid I would suggest to just delete that record, if the token was used.
>
> - ExpirationTime class: just a class to deal with time and check if the Token has expired.
>
> - TokenService class: just a class to manipulate the tokens into the database
>
> - Endpoint workflow:
>
> - /rest/forgot
>
> 1. User input the e-mail
> 2. E-mail is validated against the database
> 3. An URL to reset the password is sent
>
> Ex: curl -v -H "Accept: application/json" -H "Content-type: application/json" -d '{"email”:”john at doe.com"}' -X POST http://localhost:8080/password-reset/rest/forgot
>
> - /rest/reset
>
> 1. User sends an HTTP request with the token id
> 2. The id is validated against the database
> 3. User is redirected to the reset password page
> 4. The new password is configured
> 5. token id is destroyed into the database or disabled
>
> Ex: curl -v -H "Accept: application/json" -H "Content-type: application/json" -X POST http://localhost:8080/password-reset/rest/reset\?id\=sQrYVLJvwQptgYAg46t%2B%2BfoLrWxaPmkMY6mmvCs%2F51M%3D
>
>
> --
> abstractj
>
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