prosody-modules
24e49391d4e8
mod_auth_token/README.markdown

Find changesets by keywords by author, files, the commit message, revision number or hash, or revset expression.

Software / code / prosody-modules

Annotate

mod_auth_token/README.markdown @ 3118:24e49391d4e8

mod_minimix: Change data model
author Kim Alvefur <zash@zash.se>
date Tue, 19 Jun 2018 18:28:41 +0200
parent 2960:b8834fec4b7e
child 3471:b4bcb84997e7
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
2956
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
1 # mod_auth_token
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
2
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
3 This module enables Prosody to authenticate time-based one-time-pin (TOTP) HMAC tokens.
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
4
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
5 This is an alternative to "external authentication" which avoids the need to
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
6 make a blocking HTTP call to the external authentication service (usually a web application backend).
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
7
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
8 Instead, the application generates the HMAC token, which is then sent to
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
9 Prosody via the XMPP client and Prosody verifies the authenticity of this
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
10 token.
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
11
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
12 If the token is verified, then the user is authenticated.
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
13
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
14 ## How to generate the token
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
15
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
16 You'll need a shared OTP_SEED value for generating time-based one-time-pin
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
17 values and a shared private key for signing the HMAC token.
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
18
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
19 You can generate the OTP_SEED value with Python, like so:
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
20
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
21 >>> import pyotp
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
22 >>> pyotp.random_base32()
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
23 u'XVGR73KMZH2M4XMY'
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
24
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
25 and the shared secret key as follows:
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
26
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
27 >>> import pyotp
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
28 >>> pyotp.random_base32(length=32)
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
29 u'JYXEX4IQOEYFYQ2S3MC5P4ZT4SDHYEA7'
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
30
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
31 These values then need to go into your Prosody.cfg file:
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
32
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
33 token_secret = "JYXEX4IQOEYFYQ2S3MC5P4ZT4SDHYEA7"
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
34 otp_seed = "XVGR73KMZH2M4XMY"
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
35
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
36 The application that generates the tokens also needs access to these values.
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
37
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
38 For an example on how to generate a token, take a look at the `generate_token`
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
39 function in the `test_token_auth.lua` file inside this directory.
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
40
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
41 ## Custom SASL auth
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
42
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
43 This module depends on a custom SASL auth mechanism called X-TOKEN and which
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
44 is provided by the file `mod_sasl_token.lua`.
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
45
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
46 Prosody doesn't automatically pick up this file, so you'll need to update your
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
47 configuration file's `plugin_paths` to link to this subdirectory (for example
d0ca211e1b0e New HMAC token authentication module for Prosody.
JC Brand <jc@opkode.com>
parents:
diff changeset
48 to `/usr/lib/prosody-modules/mod_auth_token/`).