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IDProjectCategoryView StatusLast Update
0004993Talerexchangepublic2017-06-06 14:18
ReporterMarcello Stanisci Assigned ToChristian Grothoff  
PriorityhighSeveritytweakReproducibilityhave not tried
Status closedResolutionfixed 
Product Versiongit (master) 
Target Version0.3Fixed in Version0.3 
Summary0004993: aggregator needs to authenticate
DescriptionDue to recent changes, the bank's /admin/add/incoming, used to perform
wire transfers from account A to account B, requires username and password
of the client using this API, among the POSTed data.

The aggregator thus must provide the following JSON:

  "amount": {"value": x, "fraction": y, "currency": "z"},
  "wtid": "wtid_string",
  "exchange_url": "https://exchange_url",
  "credit_account": n,
  "username": "Exchange",
  "password": ""

Yes, for the moment the bank assigns a "" password to the Exchange user,
but that's another (not reported yet) issue.
TagsNo tags attached.


Christian Grothoff

2017-04-23 20:11

manager   ~0012059

This is incredibly ugly as an authentication mechanism. Can't we at least use something like HTTP digest authentication where the PW is not transmitted in the clear, and where the nonce provides some minimal protection against replay attacks? MHD supports this.

Marcello Stanisci

2017-04-24 11:04

viewer   ~0012060

I'm pretty sure this ugly way came out from some discussion we had. In any case,
note there is no MHD involved, as this API is offered by the bank, and used by
the aggregator, that goes with libcurl.

Christian Grothoff

2017-04-24 11:26

manager   ~0012061

Well, Django and curl also support digest authentication:

As far as our discussion is concerned, I recall saying that we should authenticate using username/password, but I don't recall discussing a precise specification.

Marcello Stanisci

2017-04-26 11:21

viewer   ~0012068

Last edited: 2017-04-26 11:22

digestauth package is unfortunate - fails hard on installation
(the last commit on the project dates back 2014).
Do we still want this authentication? We can fall back to the
old approach: run the /admin/add/incoming service on some protected interface.


(peel) mstan@tripwire:~$ pip3 install djangorestframework-digestauth
Collecting djangorestframework-digestauth
  Downloading djangorestframework-digestauth-1.1.0.tar.gz
    Complete output from command python egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-build-vituz1c9/djangorestframework-digestauth/", line 52
        print "You probably want to also tag the version now:"
    SyntaxError: Missing parentheses in call to 'print'
Command "python egg_info" failed with error code 1 in /tmp/pip-build-vituz1c9/djangorestframework-digestauth/

Christian Grothoff

2017-05-04 11:19

manager   ~0012099

Implemented in 27c921c..405859d.

Issue History

Date Modified Username Field Change
2017-04-23 00:51 Marcello Stanisci New Issue
2017-04-23 00:51 Marcello Stanisci Status new => assigned
2017-04-23 00:51 Marcello Stanisci Assigned To => Christian Grothoff
2017-04-23 20:11 Christian Grothoff Note Added: 0012059
2017-04-24 11:04 Marcello Stanisci Note Added: 0012060
2017-04-24 11:26 Christian Grothoff Note Added: 0012061
2017-04-26 11:21 Marcello Stanisci Note Added: 0012068
2017-04-26 11:22 Marcello Stanisci Note Edited: 0012068
2017-05-03 02:19 Christian Grothoff Priority normal => high
2017-05-03 02:19 Christian Grothoff Severity minor => tweak
2017-05-03 02:19 Christian Grothoff Product Version => git (master)
2017-05-03 02:19 Christian Grothoff Target Version => 0.3
2017-05-04 11:19 Christian Grothoff Note Added: 0012099
2017-05-04 11:19 Christian Grothoff Status assigned => resolved
2017-05-04 11:19 Christian Grothoff Resolution open => fixed
2017-05-04 11:19 Christian Grothoff Fixed in Version => 0.3
2017-06-06 14:18 Christian Grothoff Status resolved => closed