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[pam_pcsc_cr.git] / README.md

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@@ -1,3 +1,4 @@
+% Challenge-Response PAM Module
 
 ```
 Copyright (c) 2013 Eugene Crosser
@@ -24,7 +25,7 @@ freely, subject to the following restrictions:
 
 ------------------------------------------------------------------------
 
-# Challenge-Response PAM Module for HMAC-SHA1 Hardware Token(s)
+## Challenge-Response PAM Module for HMAC-SHA1 Hardware Token(s)
 
 This package provides a UNIX
 [PAM](http://en.wikipedia.org/wiki/Pluggable_Authentication_Modules)
@@ -72,6 +73,9 @@ period. The downside is that if the token is used against multiple
 hosts, and one of them leaks the secret to an adversary, all hosts are
 compromised. This is not the case with the first approach.
 
+The particular data structure is outlined in the picture:
+![](auth-data-structure.svg)
+
 ## Module Operation
 
 Authentication file, containing nonce, encrypted shared secret,
@@ -135,8 +139,11 @@ PAM module has the following parameters:
 
 ## Getting the Source
 
-Note that as of December 2013, this is a work in progress. You can
-[clone](git://git.average.org/git/pam_pcsc_cr.git) or
+Check the [project homepage](http://www.average.org/chal-resp-auth/).
+
+Pick the source tarball
+[here](http://www.average.org/chal-resp-auth/pam_pcsc_cr-0.9.1.tar.xz),
+or you can [clone](git://git.average.org/git/pam_pcsc_cr.git) or
 [browse](http://www.average.org/gitweb/?p=pam_pcsc_cr.git;a=summary)
 the git repo.