[aerogear-dev] Password reset
Erik Jan de Wit
edewit at redhat.com
Thu Dec 5 07:25:52 EST 2013
oops silly me you have that already
On 5 Dec,2013, at 13:23 , Erik Jan de Wit <edewit at redhat.com> wrote:
> Sound good only one thing we could as an extra safety let the token time out after x minutes / days.
>
> On 5 Dec,2013, at 12:43 , 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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>
>
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